The following ASCII file contains the text and tables (but not the figures)
included in the report:

SPENCER, N.E., WOODWORTH, P.L. & PUGH, D.T.  1988
      Ancillary time series of mean sea level measurements.
      Bidston, Birkenhead: Permanent Service for Mean Sea Level. 69pp.
      & appendices.

Copies of the report may still be obtained by contacting the PSMSL.

===========================================================================

         ANCILLARY TIME SERIES OF MEAN SEA LEVEL MEASUREMENTS

                                By

                N.E.Spencer, P.L.Woodworth and D.T.Pugh

In January 1987 the Permanent Service for Mean Sea Level (PSMSL) published
a report (Pugh et al. 1987) summarising its data holdings of monthly and
annual mean values of sea level at 1243 stations worldwide. This dataset
is used by a wide range of researchers in the fields of oceanography,
climatology, geology and geodesy and is constantly being updated.

Normally, the PSMSL applies a set of selection criteria before mean values
of sea level are included in its databank. These criteria are designed to
reject data which are not measured relative to reliably-recorded benchmarks
on land or which are obtained from temporary installations (i.e. of only a
few months). In addition, the PSMSL requires monthly mean values to be
available before including the corresponding annual mean values into its
databank. This latter criteria results from a decision by the PSMSL several
years ago to databank sea level changes on monthly as well as annual
timescales, primarily for oceanographic research purposes, together with
the intention of exercising a certain amount of quality control on the
global dataset over longer timescales by means of a watch for large datum
shifts or other errors from month to month. The standard PSMSL dataset
inevitably, therefore, does not include all the available global mean sea
level data.

The intention of the present report is to record an assessment of the
quantity of sea level data which is available for analysis, in addition
to that included in the PSMSL databank. To a great extent we have asked
ourselves the question 'If one were to study secular changes of global
mean sea level, from which sources could one extract data?'. In brief,
we have found there to be two sources additional to the standard PSMSL
dataset:

(1) Compilations of annual mean values, without corresponding monthly
means, obtained from national sea level authorities by the PSMSL
and published as Publications Scientifiques of the International
Association of the Physical Sciences of the Oceans (IAPSO). Largely these
have become 'forgotten data' and have not been included in recent global
mean sea level secular trend analyses such as those of Barnett (1983,1984)
or Gornitz et al. (1982) although they are included in Pirazzoli (1986).

and (2) Tabulated time series of mean sea level published by other authors
in the scientific literature. These include values of annual mean sea level,
without corresponding monthly means, made available since the publication
format of the Publications Scientifiques was discontinued by the PSMSL.
With the very old data, datum control is only very approximate and care
has to be taken if such data are to be included in any analysis. We have
chosen not to include in this compilation tabulations of composite sea
level or 'global' or 'regional-average' time series.

Clearly this list could, in principle, be extended considerably further.
However, we shall concern ourselves only with sea level measurements from
coastal and island locations and omit values from river gauges or inland
lakes (including the Caspian Sea). Furthermore, we shall not consider the
short recordings from pelagic bottom pressure recorders; a compilation of
most measurement locations and research institutes engaged in this area of
work can be found in two IAPSO volumes (Cartwright et al. 1979, Cartwright
and Zetler 1985) which detail tidal constants obtained by this technique.

Section 1 of this report is essentially a reproduction of the annual-only
mean sea level values from the seven Publications Scientifiques produced
by the PSMSL some years ago. These publications are rather difficult to
read, containing many errata to data in previous issues, and the
opportunity has been taken here of reproducing a definitive set of
annual-only mean sea level values from the seven volumes. As shorthand,
we refer to 'P.S.A.', 'P.S.B.' etc. where

 P.S.A. is Publication Scientifique No. 5 published in 1940
 P.S.B. is Publication Scientifique No.10 published in 1950
 P.S.C. is Publication Scientifique No.12 published in 1953
 P.S.D. is Publication Scientifique No.19 published in 1958
 P.S.E. is Publication Scientifique No.20 published in 1959
 P.S.F. is Publication Scientifique No.24 published in 1963
 P.S.G. is Publication Scientifique No.26 published in 1968

Following the name of each sea level station, the first set of brackets
encloses the station latitude and longitude. The locations given are
those stated in the Publications Scientifiques. However, these may differ
slightly from those currently stored by the PSMSL. If the same or a nearby
station has monthly and annual values of mean sea level in the PSMSL
dataset, then the second set of brackets encloses the country/station code,
the years for which data are stored, and the years of data in the 'Revised
Local Reference (RLR)' dataset (from Pugh et al. 1987). It is only the
measurements from the RLR dataset which can be used to construct
connected time series of mean sea level changes. In a small number
of cases more than one PSMSL record is available from the same location.

Information is also given on the authorities from which the data were
obtained, the datum to which the measurements were made and the
observation frequency. (All details, particularly about benchmarks,
have not been copied over from the original Publications Scientifiques).
At the end of the station information section, the data themselves are
presented. All values are given in millimetres with greater relative sea
level defined as a larger positive number. In many cases the data
from one issue of the Publications Scientifiques correct those quoted
in previous issues. Furthermore, the values of Table C of P.S.E. and
of P.S.F. which were shown expressed in centimetres should have been
given as in metres. All annual-only mean data from the Publications
Scientifiques are included for the sake of completeness. In some cases,
however, there are obvious unrecorded datum shifts which make those
records of doubtful utility for time series analysis. Necessary additional
information is included in the 'Notes' section.

Section 2 provides information on the datum relationships between the
measurements of Section 1 and those stored in the PSMSL RLR dataset,
where such historical relationships are known. In several cases, the
datum connections allow long continuous time series of mean sea level
to be constructed which should be of great value in secular trend
analyses. Secular trends of relative sea level change are computed for
these records. Time series of Section 1, which are not included in
Section 2, can also potentially be used in analyses of secular trends of
mean sea level. However, they have to be employed with great care as their
measurement datums cannot be formally connected to any corresponding
datum of a record in the PSMSL RLR dataset.

Section 3 comprises a bibliography of time series of mean sea level,
additional to those of the PSMSL, given in the published papers of several
different authors. We have required each publication to give a tabulation
of mean sea level measurements, rather than just time series plots alone,
and have disregarded regional or global composite time series. We realise
that such a compilation will inevitably be incomplete, and we would be
grateful to receive information on other publications which should be
included. One of the purposes of this report is to stimulate interest in
the proper archiving and availability of all sea level data. All mean sea
level tabulations should, in principle, be included in future versions of
either this report or of the PSMSL 'Data Holdings' report. Requests for
copies of the publications should in the first instance be addressed to
the original authors. However, in cases of difficulty the PSMSL should
be able to provide copies of the relevant tabulations.

 Address for Further Information
 -------------------------------

The PSMSL will be pleased to provide copies of this report on floppy disc
or magnetic tape (as a means of data exchange) to any organisation or
individual interested in analysing sea level changes.  It should be
contacted at:

 Permanent Service for Mean Sea Level
 Bidston Observatory
 Birkenhead
 Merseyside L43 7RA
 United Kingdom

 or Telephone: (UK) 51-653-8633
 or Telex: 628591 OCEANB G
 or Fax: (UK) 51-653-6269
 or Omnet/Telemail: PSMSL.POL

 Acknowledgements
 ----------------

We have to record our indebtedness to the compilers of the volumes of
the Publications Scientifiques on whose efforts Section 1 has been
based, and to the authors listed in Section 3 for sending us copies
of their publications.

This report originated as part of a study of European and global sea
levels at Bidston Observatory partly funded by the Commission of the
European Communities. The PSMSL is supported under the auspices of the
Federation of Astronomical and Geophysical Services and by the
Intergovernmental Oceanographic Commission of UNESCO. Partial funding
is provided by the U.K. Natural Environment Research Council.

PSMSL, June 1988

 References
 ----------

Barnett, T.P. (1983) Recent changes in sea level and their possible
causes. Climatic Change, 5, 15-38.

Barnett, T.P. (1984) The estimation of 'global' sea level change:
a problem of uniqueness. Journal of Geophysical Research, 89, C5,
7980-7988.

Cartwright, D.E., Zetler, B.D. and Hamon, B.V. (1979) Pelagic tidal
constants. IAPSO Publication Scientifique No.30.

Cartwright, D.E. and Zetler, B.D. (1985) Pelagic tidal
constants 2. IAPSO Publication Scientifique No.33.

Gornitz, V., Lebedeff, L. and Hansen, J. (1982) Global sea level
trend in the past century. Science, 215 (4540), 1611-1614.

Pirazzoli, P.A. (1986) Secular trends of relative sea level (RSL)
changes indicated by tide-gauge records. Journal of Coastal Research,
SI1, 1-26.

Pugh, D.T., Spencer, N.E. and Woodworth, P.L. (1987) Data holdings of the
Permanent Service for Mean Sea Level. Published by the PSMSL.

                               SECTION 1

    ANNUAL-ONLY MEAN SEA LEVELS FROM THE PUBLICATIONS SCIENTIFIQUES

NORWAY

Information for -

VARDO       (70 22N, 31 06E) (040/001 1947-65, all in RLR)
                             (040/002 1880-85)
KABELVAAG   (68 13N, 14 30E) (040/091 1880-85 1948-83, RLR 1948-83)
BODO        (67 17N, 14 24E) (040/101 1949-70 1972-73,
                                  RLR 1949-67 1969-70 1972-73)
BERGEN      (60 24N, 05 18E) (040/221 1883-89 1928-40 1944 1946-73,
                                  all in RLR)
STAVANGER   (58 58N, 05 44E) (040/261 1881-85 1928-39 1949-73,
                                  all in RLR)
OSCARSBORG  (59 41N, 10 37E) (040/331 1872-82 1953-56 1959-69 1971-73,
                                  all in RLR)
OSLO        (59 54N, 10 45E) (040/321 1885-90 1928-73, all in RLR)

P.S.A.: Period     : as shown below
        Authorities: Norsk Gradmalings-Kommission, Kristiana
        Datum      : '0.0 cm relative to B.M.'
        Observation: hourly

Data -

  STATION               PERIOD                 MEAN

  VARDO       1891 April 1 - 1892 April 4      1430
  KABELVAAG   1889 Feb.  7 - 1890 Feb. 10        83
  BODO        1896 June  1 - 1897 June  4     -1123
              1900 Jan.  1 - 1901 Jan.  4    (-1334)
  BERGEN      1884 Dec. 27 - 1885 Dec. 30        92
              1893 Dec.  1 - 1894 Dec.  4        74
  STAVANGER   1899 April 1 - 1900 April 4       152
              1900 July  1 - 1901 July  4       146
  OSCARSBORG  1884 Jan.  1 - 1885 Jan.  3      -172
  OSLO        1892 July  1 - 1893 July  4       106

Notes -

( ) indicates the mean value has been calculated from an incomplete
series of observations.

SWEDEN

Information for -

NEDRE STOCKHOLM (59 19N, 18 05E) (050/141 1889-1981, all in RLR)

P.S.A.: Period     : 1825-1927, 1928-32
        Authorities: K.Nautisk- Meteorologiska Bryan, Stockholm
                     Statens Meteorologisk-Hydrografiska Anstalt
        Datum      : relative to levelling system for 1825-1927;
                     unspecified for 1928-32
        Observation: once per day

MEM (58 29N, 16 25E) (050/101 1887-1925)

P.S.A.: Period     : 1864-86
        Authorities: K.Nautisk- Meteorologiska Bryan, Stockholm
        Datum      : unspecified
        Observation: once per week

MALMO (55 37N, 13 00E) (Not in the PSMSL)

P.S.A.: Period     : 1902-27
        Authorities: K.Nautisk- Meteorologiska Bryan, Stockholm
                     Statens Meteorologisk-Hydrografiska Anstalt
        Datum      : relative to levelling system
        Observation: once per day

AHUS (55 55N, 14 18E) (Not in the PSMSL)

P.S.A.: Period     : 1903-27
        Authorities: K.Nautisk- Meteorologiska Bryan, Stockholm
                     Statens Meteorologisk-Hydrografiska Anstalt
        Datum      : unspecified
        Observation: once per day

Information for KALMAR (56 40N, 16 22E) (Not in the PSMSL)

P.S.A.: Period     : 1903-27
        Authorities: K.Nautisk- Meteorologiska Bryan, Stockholm
                     Statens Meteorologisk-Hydrografiska Anstalt
        Datum      : unspecified
        Observation: once per day

VISBY (57 39N, 18 18E) (Not in the PSMSL)

P.S.A.: Period     : 1916-27
        Authorities: K.Nautisk- Meteorologiska Bryan, Stockholm
                     Statens Meteorologisk-Hydrografiska Anstalt
        Datum      : unspecified
        Observation: once per day

VASTERVIK (57 46N, 16 39E) (Not in the PSMSL)

P.S.A.: Period     : 1896-1927
        Authorities: K.Nautisk- Meteorologiska Bryan, Stockholm
                     Statens Meteorologisk-Hydrografiska Anstalt
        Datum      : unspecified
        Observation: once per day

LULEA (65 32N, 22 11E) (Not in the PSMSL)

P.S.A.: Period     : 1912-27
        Authorities: K.Nautisk- Meteorologiska Bryan, Stockholm
                     Statens Meteorologisk-Hydrografiska Anstalt
        Datum      : unspecified
        Observation: once per day

Data -

             NEDRE                           NEDRE
  YEAR     STOCKHOLM      YEAR     MEM     STOCKHOLM

  1825       (4320)       1861      ..        4070
  1826       (4120)       1862      ..        4000
  1827       (4150)       1863      ..        4160
  1828       (4190)       1864    3920        4040
  1829       (4090)       1865    3870        3990
  1830       (4120)       1866    4000        4100
  1831       (4070)       1867    3980        4060
  1832       (4200)       1868    4010        4080
  1833       (4140)       1869    4010        4100
  1834       (4290)       1870    3920        3990
  1835       (4240)       1871    3880        3950
  1836       (4290)       1872    3890        3970
  1837       (4240)       1873    3980        4070
  1838       (4170)       1874    4030        4070
  1839       (4160)       1875    3820        3820
  1840       (4120)       1876    3920        3900
  1841       (4070)       1877    3980        3960
  1842       (4070)       1878    4000        4000
  1843       (4120)       1879    3910        3920
  1844       (4150)       1880    3970        3950
  1845       (4070)       1881    3910        3910
  1846        4090        1882    3920i       3890
  1847        4040        1883    3900i       3880
  1848        4050        1884    3920        3900
  1849        4090        1885    3870        3880
  1850        4080        1886    3820        3820
  1851        4110        1887     ..         3910
  1852        4080        1888     ..         3840
  1853        4010        1889     ..         3860
  1854        4130        1890     ..         3920
  1855        4020        1891     ..         3840
  1856        4070        1892     ..         3870
  1857        3980        1893     ..         3930
  1858        4080        1894     ..         3890
  1859        4110        1895     ..         3880
  1860        4030

           NEDRE                                     VASTER-
  YEAR   STOCKHOLM   MALMO   AHUS   KALMAR   VISBY    VIK      LULEA
                                                                 ..
  1896      3870      ..      ..      ..       ..     5940       ..
  1897      3840      ..      ..      ..       ..     5917       ..
  1898      3950      ..      ..      ..       ..     6003       ..
  1899      4010      ..      ..      ..       ..     6098       ..
  1900      3830      ..      ..      ..       ..     5957       ..
  1901      3770      ..      ..      ..       ..     5897       ..
  1902      3830     1046     ..      ..       ..     5947       ..
  1903      3960     1130    2135    4100      ..     6064       ..
  1904      3820     1042    2026    4000      ..     5946       ..
  1905      3870     1075    2068    4058      ..     5971       ..
  1906      3870     1075     ..     4060      ..     5981       ..
  1907      3840     1064    2033    4022      ..     5946       ..
  1908      3760     1027     ..     3972      ..     5896       ..
  1909      3820     1071     ..     4005      ..     5941       ..
  1910      3830     1065     ..     4012      ..     5948       ..
  1911      3850     1104     ..     4068      ..     5986       ..
  1912      3840     1117     ..     4045      ..     5978      7823
  1913      3880     1145    2104    4103      ..     6025      7859
  1914      3830     1144    2050    4050      ..     5980      7886
  1915      3760     1073    2016    3982      ..     5924      7761
  1916      3790     1114    2019    3998     2010    5957      7753
  1917      3770     1082     ..     3981     2010    5940      7753
  1918      3760     1075     ..     3953     2000    5936      7754
  1919      3740     1052    1976    3957     1970    5920      7777
  1920      3740     1067    1989    3928     1940    5901      7771
  1921      3850     1150    2062    4046     2080    6012      7854
  1922      3810     1117    2049    4035     2030    5975      7678
  1923      3840     1135    2071    4033     2070    5992      7823
  1924      3760     1087    2012    3943     1970    5911      7743
  1925      3830     1138     ..     4036     2060    5995      7792
  1926      3770     1100    2046    3988     1990    5937      7675
  1927      3840     1119    2055    4013     2020    5983      7705
            ----
  1928      3740      ..      ..      ..       ..      ..        ..
  1929      3710      ..      ..      ..       ..      ..        ..
  1930      3700      ..      ..      ..       ..      ..        ..
  1931      3720      ..      ..      ..       ..      ..        ..
  1932      3750      ..      ..      ..       ..      ..        ..

Notes -

( ) indicates the mean value has been calculated from an incomplete
series of observations
'i' indicates the mean values have been obtained by interpolation or
inference
The Publications Scientifiques claim that Nedre Stockholm data from
1928 are from a different source to prior to 1928. For a more complete
treatment of Stockholm data, see the reports by Ekman in Section 3.
In particular, note that prior to 1889 (the start of the PSMSL record)
measurements were not made by self-recording tide gauge.

GERMAN DEMOCRATIC REPUBLIC

Information for -

WISMAR (53 54N, 11 28E) (120/021 1882-1944 1946-51 1953-56 1958-60
                                 1962-64 1966-68 1970-80)

P.S.A.: Period     : 1849-81
        Authority  : Grossherzoglich Mecklenburgisches Ministerium
                     des Innern.
        Datum      : unspecified
        Observation: at hours 6,7,8,...,19,20  for 1849-58
                     at hours 8,12,16,20       for 1859-81

WARNEMUNDE (54 11N, 12 05E) (120/011 1882-1944 1946-49 1951-53 1955-60
                                     1962-76 1978-80)

P.S.A.: Period     : 1856-81
        Authority  : Grossherzoglich Mecklenburgisches Ministerium
                     des Innern.
        Datum      : unspecified
        Observation: once per day for 1856-70
                     at hours 12,18 for 1870-81

Data -

  YEAR     WISMAR     WARNEMUNDE

  1849     131.2          ..
  1850     103.1          ..
  1851     138.2          ..
  1852      61.3          ..
  1853      91.2          ..
  1854     119.7          ..
  1855      88.5          ..
  1856     118.0        1125.2
  1857      56.0        1049.7
  1858      61.1        1068.8
  1859      74.2        1082.6
  1860      47.1        1066.0
  1861      87.3        1102.3
  1862      48.4        1059.5
  1863      88.6        1105.0
  1864      83.1        1097.0
  1865      68.1        1058.3
  1866      82.1        1119.4
  1867     168.4        1185.3
  1868     157.8        1183.7
  1869     119.5        1149.0
  1870      93.4        1103.8
  1871      87.7        1093.3
  1872      55.0        1090.7
  1873      98.3        1135.1
  1874     141.0        1183.4
  1875      77.8        1100.5
  1876     111.3        1144.1
  1877     124.9        1170.0
  1878     172.4        1218.7
  1879     167.6        1202.3
  1880     158.3        1186.3
  1881     140.1        1180.0

BELGIUM

Information for -

OSTENDE (51 14N, 02 55E) (160/021 1937-38 1943-80, all in RLR)

P.S.A.: Period     : 1925-27
        Authority  : L'Administration de la Marine, Brussels
        Datum      : 148cm relative to B.M.
        Observation: hourly with allowance for incomplete tidal periods

Data -

  YEAR     OSTENDE

  1925      2306
  1926      2306
  1927      2282

UNITED KINGDOM

Information for -

WEST HARTLEPOOL (54 41N, 01 11E) (Not in the PSMSL)

P.S.A.: Period     : 1858-60
        Authority  : Papers by Mr.E.Roberts (see P.S.A.)
        Datum      : unspecified
        Observation: unspecified

DOVER (51 07N, 01 19E) (170/111 1955-76 1978-83)

P.S.A.: Period     : 1883, 1884, 1910
        Authorities: Papers by Mr.E.Roberts (see P.S.A.)
                     Dover Harbour Board
        Datum      : -8.67ft relative to levelling system
        Observation: once per hour

PORTLAND (50 34N, 02 26W) (170/151 1923-24 1961-64)

P.S.A.: Period     : 1851, 1857, 1866, 1870
        Authorities: Papers by Mr.E.Roberts (see P.S.A.)
                     Liverpool Observatory and Tidal Institute
                     Hydrographic Department of Admiralty, London
        Datum      : -2.08ft relative to levelling system or
                     -17.30ft relative to B.M.
        Observation: hourly with allowance for incomplete tidal periods

HILBRE ISLAND (53 23N, 03 13W) (170/199 1959-71 1975-76 1980-81)

P.S.A.: Period     : 1858-67
        Authorities: Papers by Mr.E.Roberts (see P.S.A.)
                     Mersey Docks and Harbour Board
        Datum      : -10.00ft relative to B.M.
        Observation: unspecified

LIVERPOOL (53 25N, 03 00W) (170/211 1918 1920 1924 1930 1934-38
                            1943-56 1958-81)
                           (170/213 1858-60 1863-67 1869-73 1878-79
                            1883-84 1886-96 1889-1901 1903-11)

P.S.A.: Period     : 1857-59, 1866-69
        Authorities: Papers by Mr.E.Roberts (see P.S.A.)
                     Mersey Docks and Harbour Board
                     Liverpool Observatory and Tidal Institute
        Datum      : -10.00ft relative to B.M. or
                     -14.67ft relative to levelling system
        Observation: hourly with allowance for incomplete tidal periods

BLYTH (55 07N, 01 29W) (170/049 1955-83)

P.S.D.: Period     : 1954-56
P.S.E.: Period     : 1957-58
P.S.F.: Period     : 1959-61
        Authority  : Blyth Harbour Commission
        Datum      : 6.49ft below Ordnance Datum 1915-21
        Observation: Mean Tide Level

Data -

              WEST                         HILBRE
  YEAR     HARTLEPOOL   DOVER   PORTLAND   ISLAND   LIVERPOOL

  1851         ..         ..      2157       ..        ..

  1857                    ..      2135       ..      *4486
  1858       *3704        ..       ..       4352     *4517
  1859       *3649        ..       ..       4393     *4520
  1860       *3659        ..       ..       4404       ..
  1861         ..         ..       ..       4413       ..
  1862         ..         ..       ..       4464       ..
  1863         ..         ..       ..       4404       ..
  1864         ..         ..       ..       4384       ..
  1865         ..         ..       ..       4394       ..
  1866         ..         ..      2168      4428     *4541
  1867         ..         ..       ..       4395     *4598
  1868         ..         ..       ..        ..      *4721
  1869         ..         ..       ..        ..      *4613
  1870         ..         ..      2129       ..        ..

  1883         ..        2793      ..        ..        ..
  1884         ..        2777      ..        ..        ..

  1910         ..        2541      ..        ..        ..

  YEAR     BLYTH

  1954      2266
  1955      2281
  1956      2253
  1957      2304
  1958      2298
  1959      2287
  1960      2285
  1961      2327

Notes -

'*' indicates period starts in year stated but ends in next

FRANCE (ATLANTIC)

Information for -

DUNKERQUE (51 03N, 02 22E) (190/001 1942 1956-62 1964-83, all in RLR)

P.S.D.: Period     : 1923-40, 1948-55
P.S.F.: Period     : 1956-59
        Authorities: Service du Nivellement de Precision, Paris
                     in P.S.D.
                     Institut Geographique National, Paris in P.S.F.
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

CALAIS (50 58N, 01 51E) (190/011 1941-42 1965-83, all in RLR)

P.S.D.: Period     : 1932-34, 1936-40
        Authority  : Service du Nivellement de Precision, Paris
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

BOULOGNE (50 44N, 01 35E) (190/021 1942 1973-82, RLR 1973-82)

P.S.D.: Period     : 1932-40, 1949-56
P.S.F.: Period     : 1957
        Authorities: Service du Nivellement de Precision, Paris
                     in P.S.D.
                     Institut Geographique National, Paris in P.S.F.
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

DIEPPE (49 56N, 01 05E) (190/031 1942 1954 1956-83, RLR 1954 1956-83)

P.S.D.: Period     : 1936-38, 1948, 1950-52, 1954
        Authority  : Service du Nivellement de Precision, Paris
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

LE HAVRE (49 29N, 00 06E) (190/051 1941-42 1959-64 1971-80 1983,
                               all in RLR)

P.S.A.: Period     : 1860-63, 1870-86
P.S.D.: Period     : 1931-34, 1936-40, 1948-51, 1953-55
P.S.F.: Period     : 1956-59
        Authorities: Service du Nivellement General de la France
                     in P.S.A.
                     Service du Nivellement de Precision, Paris
                     in P.S.D.
                     Institut Geographique National, Paris in P.S.F.
        Datum      : Zero du nivellement general de la France
                     also given as -602.4cm relative to B.M. in P.S.A.
        Observation: medimaremetre

OUISTREHAM (49 17N, 00 05W) (Not in the PSMSL)

P.S.D.: Period     : 1932-34, 1936-44, 1947-48, 1950-51
        Authority  : Service du Nivellement de Precision, Paris
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

LE CONQUET (48 22N, 04 47W) (190/089 1971-84, all in RLR)

P.S.D.: Period     : 1928-34, 1936-41, 1947-52, 1954-56
P.S.E.: Period     : 1958
P.S.F.: Period     : 1957, 1959
        Authorities: Service du Nivellement de Precision, Paris
                     in P.S.A.
                     Institut Geographique National, Paris in P.S.E/F.
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

CHERBOURG (49 39N, 01 37W) (190/061 1942-44 196-63 1974-84,
                                RLR 1974-84)

P.S.A.: Period     : 1860-84
P.S.D.: Period     : 1891-1950
P.S.F.: Period     : 1952-54, 1958-59
        Authorities: Service du Nivellement General de la France
                     in P.S.A.
                     Service du Nivellement de Precision, Paris
                     in P.S.D.
                     Institut Geographique National, Paris in P.S.F.
        Datum      : Zero du nivellement general de la France
                     also given as -490.3cm relative to B.M. in P.S.A.
        Observation: medimaremetre

CAMERET (48 16N, 04 36W) (Not in the PSMSL)

P.S.A.: Period     : 1890-1927
        Authority  : Service du Nivellement General de la France
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

QUIBERON (47 29N, 03 06W) (Not in the PSMSL)

P.S.A.: Period     : 1889-1917
        Authority  : Service du Nivellement General de la France
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

LA PALLICE (46 10N, 01 13W) (190/121 1942 1956-63 1967-79,
                                 RLR 1956-63 1967-79)

P.S.D.: Period     : 1891-95, 1911-14, 1916-35, 1938-42, 1948-55
        Authority  : Service du Nivellement de Precision, Paris
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

LES SABLES D'OLONNES (46 30N, 01 47W) (Not in the PSMSL)

P.S.D.: Period     : 1892-93, 1896-1910, 1912-21, 1923-45,
                     1948-49, 1953-56
        Authority  : Service du Nivellement de Precision, Paris
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

ST.JEAN-DE-LUZ (43 24N, 01 41W) (190/141 1942-44 1960-82, all in RLR)

P.S.D.: Period     : 1890-1928, 1932-34, 1936-41, 1945-56
P.S.F.: Period     : 1957, 1959
        Authorities: Service du Nivellement de Precision, Paris
                     in P.S.D.
                     Institut Geographique National, Paris in P.S.F.
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

BIARRITZ (43 29N, 01 34W) (Not in the PSMSL)

P.S.D.: Period     : 1889-1904, 1906-23, 1925-42
        Authority  : Service du Nivellement de Precision, Paris
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

Data -

                                              LE
  YEAR                                       HAVRE

  1860                                       4579
  1861                                       4595
  1862                                       4612
  1863                                       4587

  1870                                       4538
  1871                                       4591
  1872                                       4648
  1873                                       4632
  1874                                       4594
  1875                                       4583
  1876                                       4597
  1877                                       4676
  1878                                       4713
  1879                                       4674
  1880                                       4626
  1881                                       4626
  1882                                       4582
  1883                                       4573
  1884                                       4619
  1885                                       4591
  1886                                       4592
                                             ----

  YEAR    CAMERET    QUIBERON

 [1889       ..         90
 [1890      -50         70
 [1891       10       -150
 [1892       30        -40
 [1893      -10       -200
 [1894      -20        -10
 [1895       20        -40
 [1896      -20        -70
 [1897        0         80
 [1898      -40         40
 [1899       30         60
 [1900        0         50
 [1901      -30        -60
 [1902        0        -20
 [1903       10        100
 [1904      -30        100
 [1905       80        230
 [1906      -60        -10
 [1907      -20        -70
 [1908       40       -200
 [1909       20         90
 [1910       60        110
 [1911       60        110
 [1912      120        160
 [1913      180         20
 [1914        0         40
 [1915       70         40
 [1916      160        150
 [1917      -30        100
 [1918      -20         ..
 [1919      -60         ..
 [1920       80         ..
 [1921       10         ..
 [1922       80         ..
 [1923       ..         ..
 [1924      160         ..
 [1925      120         ..
 [1926       10         ..
 [1927      150         ..

                                              LE                  LE
  YEAR  DUNKERQUE  CALAIS  BOULOGNE  DIEPPE  HAVRE  OUISTREHAM  CONQUET

 *1923      48        ..      ..       ..      ..       ..         ..
 *1924     158        ..      ..       ..      ..       ..         ..
 *1925     656        ..      ..       ..      ..       ..         ..
 *1926     733        ..      ..       ..      ..       ..         ..
 *1927     640        ..      ..       ..      ..       ..         ..
 *1928     757        ..      ..       ..      ..       ..        174
 *1929     -22        ..      ..       ..      ..       ..         46
 *1930      71        ..      ..       ..      ..       ..         96
 *1931      56        ..      ..       ..     -27       ..         91
 *1932      22       143      -4       ..     -45      192         60
 *1933      29       169     -57       ..     -57      286         42
 *1934     226       101     -55       ..     -24      316         31
 *1935     781        ..     -39       ..      ..       ..         ..
 *1936     467       144     114      124     275      102         20
  1937     753#      107#     78#     177#    645#     116#        75#
  1938     407#      219#     73#     -60#    296       48#         9#
  1939     400#      207#     11#      ..     -11#      90#        40#
  1940     318#      190#      4#      ..     -24#      47#         5#
  1941      ..        ..      ..       ..      ..       51#        13#
  1942      ..        ..      ..       ..      ..      123#        ..
  1943      ..        ..      ..       ..      ..       88#        ..
  1944      ..        ..      ..       ..      ..      -37#        ..
  1945      ..        ..      ..       ..      ..       ..         ..
  1946      ..        ..      ..       ..      ..       ..         ..
  1947      ..        ..      ..       ..      ..      145        385
  1948      37        ..      ..       40      59      187        465
  1949      57        ..      54       ..    -108       ..        255
  1950     131        ..      -4      131    -177      271        357
  1951     170        ..     -45      180    -142      106        283
  1952     197        ..     134      113      ..       ..        209
  1953     125        ..      57       ..      92       ..         ..
  1954      72        ..     139      -24      16       ..        160
  1955      25        ..     178       ..     109       ..        214
  1956      62+       ..      51       ..     119       ..         96
  1957      42&       ..     116&      ..     215       ..        116&
  1958      60&       ..      ..       ..     226&      ..         54
  1959       7        ..      ..       ..     272       ..        140

         ST. JEAN                LA      LES SABLES
  YEAR    DE LUZ    BIARRITZ   PALLICE    D'OLONNE    CHERBOURG

  1860      ..         ..         ..         ..         3581
  1861      ..         ..         ..         ..         3616
  1862      ..         ..         ..         ..         3592
  1863      ..         ..         ..         ..         3603
  1864      ..         ..         ..         ..         3598
  1865      ..         ..         ..         ..         3604
  1866      ..         ..         ..         ..         3630
  1867      ..         ..         ..         ..         3635
  1868      ..         ..         ..         ..         3622
  1869      ..         ..         ..         ..         3606
  1870      ..         ..         ..         ..         3587
  1871      ..         ..         ..         ..         3565
  1872      ..         ..         ..         ..         3619
  1873      ..         ..         ..         ..         3600
  1874      ..         ..         ..         ..         3558
  1875      ..         ..         ..         ..         3610
  1876      ..         ..         ..         ..         3624
  1877      ..         ..         ..         ..         3660
  1878      ..         ..         ..         ..         3618
  1879      ..         ..         ..         ..         3626
  1880      ..         ..         ..         ..         3641
  1881      ..         ..         ..         ..         3630
  1882      ..         ..         ..         ..         3621
  1883      ..         ..         ..         ..         3608
  1884      ..         ..         ..         ..         3622
                                                        ----
  1885      ..         ..         ..         ..           ..
  1886      ..         ..         ..         ..           ..
  1887      ..         ..         ..         ..           ..
  1888      ..         ..         ..         ..           ..
  1889      ..        172*        ..         ..           ..
 *1890     149        129         ..         ..           ..
 *1891     196        180         72         ..          -36
 *1892     208        243         97         30          -77
 *1893     212        231         16        -28          -88
 *1894     169        312         72         ..          -97
 *1895     206        290        117         ..          -87
 *1896     167        275         ..        -28         -105
 *1897     119        163         ..         -7         -125
 *1898      98        209         ..          6          -53
 *1899     140        191         ..        -34          -16
 *1900     247        276         ..        -68          -97
 *1901     364        241         ..         27          -61
 *1902     279        128         ..          2         -117
 *1903     158         47         ..         48          -20
 *1904     130         43         ..         -6         -107
 *1905     150         ..         ..        -66          -90
 *1906     166        183         ..        -17          -80
 *1907     218        149         ..          5          -81
 *1908     198        115         ..         30          -65
 *1909     202        121         ..         65           -2
 *1910     222        183         ..         16           85
 *1911     212        141        134         ..           91
 *1912     247        102        184         -4           74
 *1913     237        110        468        -52          -89
 *1914     232        229        501        198           50
 *1915     213        217         ..        100          -86
 *1916     292        250        180         97         -107
 *1917     177        221       -191        100          -17
 *1918     113        122       -152         47          -42
 *1919     206        173       -221         77          -52
 *1920     131        120        162         86          -25
 *1921     146        166        159         37          -68
 *1922     198         86         93         ..          -98
 *1923     216        181        323         39         -187
 *1924     204         ..        119        180         -238
 *1925     186        223        122        139         -253
 *1926      64        195        183         88         -237
 *1927      -9        148        152         36         -222
 *1928      46        157        197        122         -126
 *1929      ..        166        240        152          -93
 *1930      ..        244        360        266         -123
 *1931      ..        179        323        246         -278
 *1932     401        128        258         55         -167
 *1933     313        229         98         11          -77
 *1934     170        219        148         34          -87
 *1935      ..        144        106          2           19
 *1936     204        199         ..        127           61
  1937     150#       247#        ..        115#          51#
  1938      19#       117#       286#        67#         -72#
  1939     164#       116        223        118#         -59#
  1940     181#       251        403         85#         -73#
  1941      66#       315        499         61#         -52#
  1942      ..        277        449         49#         -77#
  1943      ..         ..         ..         43#         -53#
  1944      ..         ..         ..          5#        -169#
  1945     256#        ..         ..         93#          35
  1946     201#        ..         ..         ..           89
  1947     392         ..         ..         ..           30
  1948     293         ..        172        187           55
  1949     183         ..         85        113          -94
  1950     333         ..        118         ..         -100
  1951     378         ..        118         ..           ..
  1952     303         ..         90         ..           55
  1953     269         ..         -1        139          -94
  1954     344         ..       -116        165         -100
  1955     423         ..       -227        252           ..
  1956     372         ..         ..        210           ..
  1957     407&        ..         ..         ..           ..
  1958      ..         ..         ..         ..          -68&
  1959     309         ..         ..         ..         -116

Notes -

'*' indicates changes to data published previously in P.S.A.
'#' indicates changes to data published previously in P.S.B.
'+' indicates changes to data published previously in P.S.D.
'&' indicates changes to data published previously in P.S.E.
'[' indicates measurements to the nearest centimetre

SPAIN

Information for -

CADIZ (36 30N, 06 12W) (220/001 1946-65)
                       (220/002 1916-19 1976-78)

P.S.A.: Period     : 1880-98, 1900-19, 1921-23
        Authorities: Instituto Geografico, Catastral y de Estadistica,
                     Madrid
                     Servicio Hidrografico, Instituto y Observatorio
                     de Marina, San Fernando
        Datum      : Levelling System
        Observation: unspecified

ALICANTE (38 20N, 00 29W) (220/051 1916-20 1927-39 1943-46 1950-62
                                   1964-69, RLR 1952-62 1964-69)
                          (220/052 1960-78, all in RLR)

P.S.A.: Period     : 1874-1911, 1916-23, 1927-34
        Authority  : Instituto Geografico, Catastral y de Estadistica,
                     Madrid
        Datum      : Levelling System
        Observation: unspecified

Data -

  YEAR     CADIZ     ALICANTE       YEAR     CADIZ     ALICANTE

  1874       ..       -3420         1905     -3014      -3329
  1875       ..       -3424         1906     -2993      -3324
  1876       ..       -3395         1907     -2948      -3431
  1877       ..       -3405         1908     -3049      -3433
  1878       ..       -3398         1909     -3112      -3426
  1879       ..       -3387         1910     -3090      -3416
  1880     -2928      -3368         1911     -3053      -3413
  1881     -2993      -3403         1912     -3057        ..
  1882     -3035      -3269         1913     -2973        ..
  1883     -2985      -3253         1914     -2999        ..
  1884     -2937      -3328         1915     -2975        ..
  1885     -2982      -3380         1916     -2899      -3342
  1886     -3043      -3400         1917     -2948      -3391
  1887     -3001      -3370         1918     -2863      -3346
  1888     -3006      -3387         1919     -2845      -3377
  1889     -3102      -3360         1920       ..       -3341
  1890     -2977      -3330         1921     -2941      -3341
  1891     -2986      -3306         1922     -2968      -3363
  1892     -3022      -3407         1923     -2948      -3347
  1893     -3018      -3358         1924       ..         ..
  1894     -2975      -3338         1925       ..         ..
  1895     -2951      -3397         1926       ..         ..
  1896     -2992      -3416         1927       ..       -3376
  1897     -2988      -3432         1928       ..       -3389
  1898     -2965      -3334         1929       ..       -3416
  1899       ..       -3423         1930       ..       -3389
  1900     -2983      -3377         1931       ..       -3371
  1901     -2968      -3333         1932       ..       -3385
  1902     -3016      -3332         1933       ..       -3385
  1903     -3005      -3322         1934       ..       -3387
  1904     -3018      -3352

Notes -

For 1874-1923 recording period starts in year stated but ends in next.
Values for Alicante are given to an extra decimal place in P.S.A.
P.S.A. contains information on number of days recording in each year.

FRANCE (MEDITERRANEAN)

Information for -

PORT VENDRES (42 31N, 03 07E) (230/006 1978-83)

P.S.D.: Period     : 1888-1943, 1947-56
P.S.E.: Period     : 1958
P.S.F.: Period     : 1957, 1959
        Authorities: Service du Nivellement de Precision, Paris
                     in P.S.D.
                     Institut Geographique National, Paris in P.S.E/F.
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

SETE (43 24N, 03 42E) (230/021 1960-61 1978-79)

P.S.D.: Period     : 1888-1933, 1937-43, 1947-56
P.S.E.: Period     : 1958
P.S.F.: Period     : 1957, 1959
        Authorities: Service du Nivellement de Precision, Paris
                     in P.S.D.
                     Institut Geographique National, Paris in P.S.E/F.
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

PORT DE BOUC (43 24N, 04 59E) (230/031 1960-63 1978-83)

P.S.D.: Period     : 1894-1908, 1910-39, 1943-55
P.S.E.: Period     : 1958
P.S.F.: Period     : 1956-57, 1959
        Authorities: Service du Nivellement de Precision, Paris
                     in P.S.D.
                     Institut Geographique National, Paris in P.S.E/F.
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

MARTIGUES (43 24N, 05 03E) (230/041 1960-63 1978-83)

P.S.D.: Period     : 1894-1956
P.S.F.: Period     : 1957-58
        Authorities: Service du Nivellement de Precision, Paris
                     in P.S.D.
                     Institut Geographique National, Paris in P.S.F.
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

MARSEILLE (43 18N, 05 21E) (230/051 1885-1936 1938-58 1960-63 1970-84,
                                RLR 1885-1936 1938-58 1960-63)

P.S.D.: Period     : 1885-1956
        Authority  : Service du Nivellement de Precision, Paris
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

LA CIOTAT (43 10N, 05 37E) (Not in the PSMSL)

P.S.D.: Period     : 1893-1942, 1948-52
        Authority  : Service du Nivellement de Precision, Paris
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

VILLEFRANCHE (43 42N, 07 20E) (Not in the PSMSL)

P.S.D.: Period     : 1913-33, 1936-55
P.S.F.: Period     : 1956-57
        Authorities: Service du Nivellement de Precision, Paris
                     in P.S.D.
                     Institut Geographique National, Paris in P.S.F.
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

NICE (43 41N, 07 17E) (230/081 1978-84)

P.S.A.: Period     : 1888-1909
        Authority  : Service du Nivellement General de la France
        Datum      : Zero du nivellement general de la France
        Observation: medimaremetre

Data -

           PORT           PORT                         LA     VILLE-
  YEAR   VENDRES  SETE  DE BOUC MARTIGUES MARSEILLES CIOTAT  FRANCHE NICE

  1885      ..      ..      ..      ..        11       ..       ..    ..
  1886      ..      ..      ..      ..         7       ..       ..    ..
  1887      ..      ..      ..      ..        -2       ..       ..    ..
  1888     -11*     -1*     ..      ..        12       ..       ..   -60[
  1889     -19*    -24*     ..      ..         2       ..       ..   -60[
 *1890     -28     -43      ..      ..       -18       ..       ..   -80[
 *1891     -14     -21      ..      ..        -6       ..       ..   -80[
 *1892       3      -5      ..      ..        20       ..       ..   -50[
 *1893       0      -9      ..      ..        13       64       ..   -20[
 *1894     -38     -57       1      -2       -15       16       ..  -100[
 *1895      30      22       2      28        49       66       ..   -40[
 *1896     -34     -37     -59     -10         1       20       ..   -80[
 *1897     -12     -23     -45      -3         8       44       ..   -60[
 *1898     -17      -2       1      29        29       40       ..   -60[
 *1899      -8     -15       8       5        33       21       ..   -60[
 *1900      21       5      51      24        66       76       ..   -30[
 *1901       1      -9      53      26        53       67       ..   -40[
 *1902      22      19      12      83        54       74       ..   -20[
 *1903      -3     -15     -48      17        26       46       ..   -50[
 *1904       7      29     -34      48        38       50       ..   -40[
 *1905     -28     -35      18      23        22       45       ..   -60[
 *1906     -14     -47      13      20        21       57       ..   -50[
 *1907     -27      -4     -43      30        15       21       ..   -70[
 *1908     -57     -54     -92      -4         2      -25       ..   -80[
 *1909     -35     -30      ..      15        14        3       ..   -50[
 *1910       8     -19      22      60        42       61       ..    ..
 *1911       1     -16      -9      72        35       41       ..    ..
 *1912       8     -14     -10      72        19       40       ..    ..
 *1913       4     -10     -30      76        24       19       19    ..
 *1914     -15     -19     -53      66        24       15      -35    ..
 *1915     -21      12      39     106        58       64      -31    ..
 *1916      24      49      26      95       101       53      -20    ..
 *1917      13      13     -44      63        24       71      -40    ..
 *1918      12      -9      60      35        46       46      -32    ..
 *1919      11     -13      59      80        65       58        6    ..
 *1920      -1     -22      -3       3        43       38      -33    ..
 *1921     -16     -62     -35      33        29       45      -90    ..
 *1922     -27     -49       6      -1        50       12      -89    ..
 *1923     -31     -64      -4      28        30      -36       -3    ..
 *1924       0     -50      28     -18        34        3      -63    ..
 *1925     -10      33       5      32        28       19      -43    ..
 *1926       3     -66      -4      32        67       47        9    ..
 *1927     -10     -65     -12       1        77      105       23    ..
 *1928      17     -81      37      18        72      123       28    ..
 *1929      -2     -98      19     -21        31       82        9    ..
 *1930      46     -47      72       7        68      102       31    ..
 *1931      16     -47      61      34        51       95       16    ..
 *1932      14     -90      46     -32        45      110      -16    ..
 *1933      28     -57      64     -41        86      131       -2    ..
 *1934      -6      ..     131      37        72      103       ..    ..
 *1935      11      ..     115      55        69      100       ..    ..
 *1936      54      ..     151     129       105      143       81    ..
  1937     100#     35#    152#    100#      123#     154#      49#   ..
  1938     120#    -91#    107#     26#       34#      83#     -77#   ..
  1939     141#    -36#     35#    -32#       94      126#      36#   ..
  1940     133#    -54#     ..     -30#       93      124#     -16#   ..
  1941     145#    -47#     ..     -47#       96      131#     -72#   ..
  1942     165#    -34#     ..     -41#       88      138#     -13#   ..
  1943      93#    -38#    132#     10#       67       ..       -3#   ..
  1944      ..      ..     204#     55#       81       ..      -54#   ..
  1945      ..      ..     352#      9#       35       ..      -70#   ..
  1946      ..      ..     366#     36#       74       ..       57#   ..
  1947      75      40     500      79        96       ..       11    ..
  1948      39       1     408      53        78      119       30    ..
  1949      24      -9     235      -5        66      144       13    ..
  1950      30      18     270     -10        70       98       12    ..
  1951      95      53     296      43       220      134       50    ..
  1952      48      33     260      11       220       82       20    ..
  1953      36     -26     335      45        79       ..      -26    ..
  1954      30     -26     246      14        80       ..      -12    ..
  1955     106      29      66     -67       146       ..       21    ..
  1956      23     -89      72+    131       113       ..      -14    ..
  1957      30&    -34&    124&     20        ..       ..      -30&   ..
  1958      62     -57     273    -147        ..       ..       ..    ..
  1959      79      24     162      ..        ..       ..       ..    ..

Notes -

'*' indicates changes to data published previously in P.S.A.
'#' indicates changes to data published previously in P.S.B.
'+' indicates changes to data published previously in P.S.D.
'&' indicates changes to data published previously in P.S.E.
'[' indicates measurements to the nearest centimetre

FRANCE (CORSICA)

Information for -

AJACCIO (41 55N, 08 44E) (Not in the PSMSL)

P.S.D.: Period     : 1912-37, 1948-49, 1951-56
P.S.E.: Period     : 1958
P.S.F.: Period     : 1956-57, 1959
        Authorities: Service du Nivellement de Precision, Paris in P.S.D.
                     Institut Geographique National, Paris in P.S.E/F.
        Datum      : 207.1cm below B.M.
        Observation: medimaremetre

BONIFACIO (41 23N, 09 08E) (Not in the PSMSL)

P.S.D.: Period     : 1929-36, 1938-42, 1948-56
P.S.E.: Period     : 1958
P.S.F.: Period     : 1957, 1959
        Authorities: Service du Nivellement de Precision, Paris in P.S.D.
                     Institut Geographique National, Paris in P.S.E/F.
        Datum      : Local
        Observation: medimaremetre

BASTIA (42 41N, 09 26E) (Not in the PSMSL)

P.S.D.: Period     : 1912-34, 1938-43, 1948-55
P.S.F.: Period     : 1956-58
        Authorities: Service du Nivellement de Precision, Paris in P.S.D.
                     Institut Geographique National, Paris in P.S.F.
        Datum      : Local
        Observation: medimaremetre

PROPRIANO (41 41N, 08 54E) (Not in the PSMSL)

P.S.A.: Period     : 1912-26
        Authority  : Service du Nivellement General de la France, Paris
        Datum      : Local
        Observation: medimaremetre

Notes -

'*' indicates changes to data published previously in P.S.A.
'#' indicates changes to data published previously in P.S.B.
'+' indicates changes to data published previously in P.S.D.
'&' indicates changes to data published previously in P.S.E.
'[' indicates measurements to the nearest centimetre
'u' indicates uncertainty in the significance of the data

Data -

  YEAR     AJACCIO   BONIFACIO   BASTIA       YEAR     PROPRIANO

 *1912       267         ..        172       [1912        280u
 *1913       330         ..        170       [1913        320u
 *1914       297         ..        171       [1914        370u
 *1915       296         ..        237       [1915        350u
 *1916       292         ..        224       [1916        400u
 *1917       304         ..        206       [1917        280u
 *1918       281         ..        186       [1918        240u
 *1919       325         ..        219       [1919         ..
 *1920       270         ..        133       [1920        470
 *1921       259         ..         92       [1921        430
 *1922       265         ..         98       [1922        490
 *1923       314         ..        214       [1923        470
 *1924       300         ..        389       [1924        510
 *1925       306         ..        445       [1925        400
 *1926       292         ..        440       [1926        520
 *1927       307         ..        403
 *1928       280         ..        426
 *1929       283        671        345
 *1930       325        560        398
 *1931       323        564        526
 *1932       297        520        470
 *1933       306        543        418
 *1934       282        496        369
 *1935       291        526         ..
 *1936       327        533         ..
  1937       347#        ..         ..
  1938        ..        679#       215
  1939        ..        489#       108#
  1940        ..        334#       119#
  1941        ..        178#       180#
  1942        ..        153#       218#
  1943        ..         ..        102#
  1944        ..         ..         ..
  1945        ..         ..         ..
  1946        ..         ..         ..
  1947        ..         ..         ..
  1948       -93        182        158
  1949      -231         47         56
  1950        ..         -2         23
  1951      -234        241        114
  1952      -252        134         38
  1953      -273        -66        -88
  1954      -262       -159       -151
  1955      -359       -427         76
  1956      -400+      -472         97
  1957      -366&      -431&       289&
  1958      -351       -464        300
  1959      -402       -464         ..

TURKEY

Information for -

ALEXANDRETTE (36 37N, 36 07E) (Not in the PSMSL)

P.S.A.: Period     : 1927-34
        Authority  : Service du Nivellement General de la France
        Datum      : unspecified
        Observation: medimaremetre

Data -

  YEAR     ALEXANDRETTE

 [1922          ..
 [1923          ..
 [1924          ..
 [1925          ..
 [1926          ..
 [1927         410u
 [1928         350u
 [1929         340u
 [1930         320u
 [1931         350u
 [1932         360u
 [1933         330u
 [1934         230u

Notes -

'[' indicates measurements to the nearest centimetre
'u' indicates uncertainty in the significance of the data

LEBANON

Information for -

BEYROUTH (36 54N, 35 28E) (Not in the PSMSL)

P.S.A.: Period     : 1922-31
        Authority  : Service du Nivellement General de la France
        Datum      : unspecified
        Observation: medimaremetre

Data -

  YEAR        BEYROUTH

 [1922          370u
 [1923          340u
 [1924          360u
 [1925          370u
 [1926          420u
 [1927          350u
 [1928          400u
 [1929          380u
 [1930          390u
 [1931          400u
 [1932           ..
 [1933           ..
 [1934           ..

Notes -

'[' indicates measurements to the nearest centimetre
'u' indicates uncertainty in the significance of the data

EGYPT

Information for -

SUEZ (29 56N, 32 33E) (Not in the PSMSL)

P.S.A.: Period     : 1897-1903
        Authority  : La Compagnie Universelle du Canal Maritime de
                     Suez, Ismailia
        Datum      : -10.34cm relative to B.M.
        Observation: hourly

Data -

  YEAR     SUEZ

  1897     4338
  1898     4360
  1899     4392
  1900     4402
  1901     4400
  1902     4361
  1903     4190

TUNISIA

Information for -

SFAX (34 44N, 10 46E) (Not in the PSMSL)

P.S.D.: Period     : 1910-42, 1950-56
P.S.E.: Period     : 1958
P.S.F.: Period     : 1957, 1959
        Authorities: Service du Nivellement de Precision, Paris in P.S.D.
                     Institut Geographique National, Paris in P.S.E/F.
        Datum      : Zero Tunisien
        Observation: medimaremetre

SOUSSE (35 49N, 10 37E) (Not in the PSMSL)

P.S.D.: Period     : 1910-42, 1949-50, 1952-56
P.S.E.: Period     : 1958
P.S.F.: Period     : 1957, 1959
        Authorities: Service du Nivellement de Precision, Paris in P.S.D.
                     Institut Geographique National, Paris in P.S.E/F.
        Datum      : Zero Tunisien
        Observation: medimaremetre

LA GOULETTE (36 49N, 10 18E) (Not in the PSMSL)

P.S.D.: Period     : 1889-1942, 1949-51, 1954-55
P.S.F.: Period     : 1956-57
        Authorities: Service du Nivellement de Precision, Paris in P.S.D.
                     Institut Geographique National, Paris in P.S.F.
        Datum      : Zero Tunisien
        Observation: medimaremetre

Data -

  YEAR     SFAX   SOUSSE   LA GOULETTE

 *1889       ..      ..        -24
 *1890       ..      ..       -104
 *1891       ..      ..        -33
 *1892       ..      ..         -8
 *1893       ..      ..         -6
 *1894       ..      ..        -57
 *1895       ..      ..          7
 *1896       ..      ..         -5
 *1897       ..      ..        -36
 *1898       ..      ..        -31
 *1899       ..      ..        -37
 *1900       ..      ..          5
 *1901       ..      ..        -14
 *1902       ..      ..         -5
 *1903       ..      ..        -42
 *1904       ..      ..        -21
 *1905       ..      ..        -17
 *1906       ..      ..        -30
 *1907       ..      ..        -63
 *1908       ..      ..        -85
 *1909       ..      ..        -59
 *1910      -85     -93        -32
 *1911     -145    -110        -52
 *1912     -132     -95        -39
 *1913     -147    -115        -62
 *1914     -157    -143        -37
 *1915      -89     -88        -21
 *1916     -113     -94        -39
 *1917     -190    -121        -50
 *1918     -206    -179        -63
 *1919     -138     -95        -49
 *1920     -140    -130        -61
 *1921     -131    -128        -87
 *1922     -144     -97        -60
 *1923     -143    -132        -61
 *1924     -100     -57        -41
 *1925     -136    -102        -52
 *1926      -89     -64        -14
 *1927     -121     -38        -12
 *1928      -77     -60         -4
 *1929      -49      ..        -24
 *1930      -70     -15        -10
 *1931      -43     -22        -20
 *1932      -72     -85        -63
 *1933      -10     -18        -23
 *1934       36     -70        -43
 *1935      143     -21        -19
 *1936      126      18         -2
  1937       -1#     19#       -12#
  1938       -4#    -48#       -49#
  1939       13       7#       -29
  1940      -16       4#       -22
  1941      -81      11#       -51
  1942      -61       9#       -56
  1943       ..      ..         ..
  1944       ..      ..         ..
  1945       ..      ..         ..
  1946       ..      ..         ..
  1947       ..      ..         ..
  1948       ..      ..         ..
  1949       ..      65         49
  1950      115       3         51
  1951      122      ..         43
  1952       74      12         ..
  1953       68     -40         ..
  1954      116      -7         29
  1955      120      23         64
  1956      131     -12         15+
  1957      149&     12&       -34&
  1958      106      30         ..
  1959       70      25         ..

Notes -

'*' indicates changes to data published previously in P.S.A.
'#' indicates changes to data published previously in P.S.B.
'+' indicates changes to data published previously in P.S.D.
'&' indicates changes to data published previously in P.S.E.

ALGERIA

Information -

BONE INTERIEUR (36 54N, 07 46E) (Not in the PSMSL)

P.S.B.: Period     : 1937, 1939-41
        Authority  : Service du Nivellement General de la France
        Datum      : not specified
        Observation: medimaremetre

BONE NO.1 (36 54N, 07 46E) (Not in the PSMSL)

P.S.B.: Period     : 1938
        Authority  : Service du Nivellement General de la France
        Datum      : not specified
        Observation: medimaremetre

BONE NO.2 (36 54N, 07 46E) (Not in the PSMSL)

P.S.D.: Period     : 1908-41, 1948-56
P.S.E.: Period     : 1958
P.S.F.: Period     : 1957, 1959
        Authorities: Service du Nivellement de Precision, Paris in P.S.D.
                     Institut Geographique National, Paris in P.S.E/F.
        Datum      : Zero Algerien
        Observation: medimaremetre

ALGER (36 47N, 03 04E) (Not in the PSMSL)

P.S.D.: Period     : 1905-42, 1949-56
P.S.E.: Period     : 1958
P.S.F.: Period     : 1957, 1959
        Authorities: Service du Nivellement de Precision, Paris in P.S.D.
                     Institut Geographique National, Paris in P.S.E/F.
        Datum      : Zero Algerien
        Observation: medimaremetre

ORAN (35 43N, 00 39W) (Not in the PSMSL)

P.S.D.: Period     : 1890-1906, 1908-20, 1923-42, 1945-56
P.S.E.: Period     : 1958
P.S.F.: Period     : 1957, 1959
        Authorities: Service du Nivellement de Precision, Paris in P.S.D.
                     Institut Geographique National, Paris in P.S.E/F.
        Datum      : Zero Algerien
        Observation: medimaremetre

PORT SAY (unspecified location) (Not in the PSMSL)

P.S.A.: Period     : 1925-31
        Authority  : Service du Nivellement General de la France, Paris
        Datum      : Zero Algerien
        Observation: medimaremetre

Data -

  YEAR     BONE NO.2   ALGER   ORAN

 *1890         ..        ..     -76
 *1891         ..        ..     -67
 *1892         ..        ..     -57
 *1893         ..        ..    -115
 *1894         ..        ..    -163
 *1895         ..        ..    -123
 *1896         ..        ..    -109
 *1897         ..        ..    -107
 *1898         ..        ..    -137
 *1899         ..        ..     -80
 *1900         ..        ..    -104
 *1901         ..        ..    -126
 *1902         ..        ..     -40
 *1903         ..        ..     -89
 *1904         ..        ..     -50
 *1905         ..        30     -67
 *1906         ..         3     -54
 *1907         ..         7      ..
 *1908        147       -36    -134
 *1909        177        -1    -119
 *1910        188         1     -49
 *1911        185       -26     -80
 *1912        187       -50     -70
 *1913        168       -75     -42
 *1914        154       -86     -89
 *1915        206       -22     -50
 *1916        206       -12     -61
 *1917        155       -40     -47
 *1918        169      -116     -69
 *1919        116       -33    -100
 *1920        337       -27    -122
 *1921        318       -34      ..
 *1922        303       -18      ..
 *1923        205        15     -53       PORT SAY
 *1924        145         3     -17
 *1925        143        21     -74          200[
 *1926        135         8     -30          200[
 *1927        230       -66     -26          200[
 *1928        200        -1     -39          200[
 *1929        164        -9     -43          210[
 *1930        168         3     -54          200[
 *1931        207        15      51          230[
 *1932        173        -6     117
 *1933         96        30     156
 *1934        -31         0     175
 *1935        -38        -9     186     BONE INTERIEUR    BONE NO.1
 *1936         60        42     243
  1937        219        39#    214#         190             ..
  1938        163#      -12#    300#          ..            130
  1939        217        29#      7#         190             ..
  1940        194        24#     -2#         170             ..
  1941        196      -146#    -58#         160             ..
  1942         ..      -148#    -95#
  1943         ..        ..      ..
  1944         ..        ..      ..
  1945         ..        ..      ..
  1946         ..        ..      -8
  1947         ..        ..     -30
  1948         96        ..      18
  1949        266        39      -1
  1950        202        12      29
  1951        180        -5      11
  1952        230       -29     -35
  1953        261       -48     -54
  1954        167       -54     -44
  1955        266       -29     -17
  1956        322       -70     -58
  1957        270&     -108&    -24&
  1958        363       -78     -16
  1959        258       -38     -43

Notes -

'*' indicates changes to data published previously in P.S.A.
'#' indicates changes to data published previously in P.S.B.
'&' indicates changes to data published previously in P.S.E.
'[' indicates measurements to the nearest centimetre

MOROCCO

Information for -

CASABLANCA (33 36N, 07 37W) (350/021 1957-59)

P.S.D.: Period     : 1923-44, 1947-53, 1955-56
P.S.E.: Period     : 1958
P.S.F.: Period     : 1957, 1959
        Authorities: Service du Nivellement de Precision, Paris in P.S.D.
                     Institut Geographique National, Paris in P.S.E/F.
        Datum      : Zero Marocain
        Observation: medimaremetre

AGADIR (30 25N, 09 38W) (Not in the PSMSL)

P.S.E.: Period     : 1957
P.S.F.: Period     : 1958, 1959
        Authority  : Institut Geographique National, Paris
        Datum      : Zero Marocain
        Observation: medimaremetre

MOGADOR (31 31N, 09 47W) (Not in the PSMSL)

P.S.A.: Period     : 1924-29
        Authority  : Service du Nivellement General de la France, Paris
        Datum      : Zero Marocain
        Observation: medimaremetre

Data -

  YEAR     CASABLANCA   MOGADOR       YEAR      CASABLANCA   AGADIR

  1923         45*         ..         1940          20         ..
  1924        107*        210[        1941           1         ..
  1925         37*        130[        1942          -6         ..
  1926         45*        160[        1943         -10         ..
  1927        -59*        140[        1944         -41         ..
  1928        -38*        140[        1945          ..         ..
  1929        -25*        160[        1946          ..         ..
  1930        -22*         ..         1947          30         ..
  1931         -1*         ..         1948          87         ..
  1932        -41*         ..         1949          54         ..
  1933         45*         ..         1950         -25         ..
  1934         36*         ..         1951         -81         ..
  1935         92*         ..         1952        -168         ..
  1936         94*         ..         1953        -136         ..
  1937         57#         ..         1954          ..         ..
  1938          3#         ..         1955          35         ..
  1939         -2          ..         1956          50         ..
                                      1957          52&        39
                                      1958         -11         39
                                      1959          55        -78

Notes -

'*' indicates changes to data published previously in P.S.A.
'#' indicates changes to data published previously in P.S.B.
'&' indicates changes to data published previously in P.S.E.
'[' indicates measurements to the nearest centimetre

MADAGASCAR

Information for -

TAMATAVE (18 09S, 49 26E) (Not in the PSMSL)

P.S.D.: Period     : 1930-51
P.S.E.: Period     : 1953-57
P.S.F.: Period     : 1952, 1958-59
        Authorities: Service du Nivellement de Precision, Paris in P.S.D.
                     Institut Geographique National, Paris in P.S.E/F.
        Datum      : B.M. in P.S.D.
                     Nivellement de Madagascar in P.S.E/F.
        Observation: medimaremetre

TULEAR (23 21S, 43 38E) (Not in the PSMSL)

P.S.B.: Period     : 1937-38
        Authority  : Service du Nivellement General de la France
        Datum      : 'level of B.M.'
        Observation: medimaremetre

MAJUNGA (15 40S, 46 21E) (Not in the PSMSL)

P.S.A.: Period     : 1932-33, 1936
P.S.B.: Period     : 1937
        Authority  : Service du Nivellement General de la France
        Datum      : 'level of B.M.'
        Observation: medimaremetre

Data -

  YEAR     TAMATAVE            YEAR      TAMATAVE

 *1923         ..              1940          74
 *1924         ..              1941          85
 *1925         ..              1942          18
 *1926         ..              1943           9
 *1927         ..              1944         -11
 *1928         ..              1945         -51
 *1929         ..              1946         -65
 *1930        -34              1947          65
 *1931          0              1948         -36
 *1932         36              1949          -7
 *1933        -10              1950        -119
 *1934        -14              1951        -136
 *1935         -8              ----------------- change of datum
 *1936          9              1952          38&
  1937          0#             1953         129
  1938         -1#             1954         162
  1939          1              1955          41
                               1956          92
                               1957          86
                               1958           3
                               1959          -1

  YEAR     TULEAR   MAJUNGA

  1932        ..       -40[
  1933        ..       -40[

  1936        ..      -270[u
                     ------
  1937      -3005    -3753
  1938      -2888      ..

Notes -

'*' indicates changes to data published previously in P.S.A.
'#' indicates changes to data published previously in P.S.B.
'&' indicates changes to data published previously in P.S.E.
'[' indicates measurements to the nearest centimetre
'u' indicates uncertainty in the significance of the data

YEMEN REPUBLIC

Information for -

PERIM (12 39N, 43 25E) (Not in the PSMSL)
ADEN  (12 47N, 44 59E) (485/001 1879-93 1916-33 1937-69, all in RLR)

P.S.A.: Period     : as shown below
        Authorities: Survey of India, Dehra Dun
        Datum      : Local B.M. (See Eccles reference in Section 3).
        Observation: hourly

Data -

  YEAR     PERIM    ADEN

  1894       ..     1776
  1895       ..     1782
  1896       ..     1779
  1897       ..     1808
  1898      1645    1804
  1899      1634    1792
  1900      1623    1763
  1901      1648    1779
  1902      1659    1826
  1903       ..     1818
  1904       ..     1790
  1905       ..     1785
  1906       ..     1772
  1907       ..     1786
  1908       ..     1774
  1909       ..     1765
  1910       ..     1779
  1911       ..     1758
  1912       ..     1790
  1913       ..     1786
  1914       ..     1778
  1915       ..     1814
  1916       ..     1800
  1917       ..     1766
  1918       ..     1783
  1919       ..     1780
  1920       ..     1789

OMAN

Information for -

MASKAT (23 37N, 58 36E) (Not in the PSMSL)

P.S.A.: Period     : 1893-97
        Authorities: Survey of India, Dehra Dun
        Datum      : Local B.M. (See Eccles reference in Section 3).
        Observation: hourly

Data -

  YEAR    MASKAT

  1893     2345
  1894     2345
  1895     2328
  1896     2348
  1897     2347

IRAQ

Information for -

BASRAH (30 31N, 47 51E) (482/031 1917-18)

P.S.A.: Period     : 1916, 1919-24
        Authorities: Liverpool Observatory and Tidal Institute
                     Port Director, Basrah
        Datum      : Local B.M
        Observation: hourly

Data -

  YEAR    BASRAH

  1916     2105
  1917      ..
  1918      ..
  1919     2204
  1920     1993
  1921     1946
  1922     1963
  1923     1855
  1924     1784

IRAN

Information for -

BUSHIRE (28 54N, 50 45E) (Not in the PSMSL)

P.S.A.: Period     : 1892, 1894-1900
        Authorities: Survey of India, Dehra Dun
        Datum      : Local B.M. (See Eccles reference in Section 3).
        Observation: hourly

Data -

  YEAR    BUSHIRE

  1892      1487
  1893       ..
  1894      1454
  1895      1431
  1896      1418
  1897      1436
  1898      1429
  1899      1408
  1900      1408

PAKISTAN

Information for -

KARACHI (24 48N, 66 58E) (490/021 1916-20 1937-48 1957-82)

P.S.A.: Period     : 1868-1920
        Authorities: Survey of India, Dehra Dun
        Datum      : Local B.M. (See Eccles reference in Section 3).
        Observation: hourly

Data -

  YEAR   KARACHI     YEAR   KARACHI

  1868     2179      1895     2192
  1869     2222      1896     2192
  1870     2214      1897     2199
  1871     2166      1898     2207
  1872     2149      1899     2192
  1873     2158      1900     2153
  1874     2180      1901     2180
  1875     2180      1902     2227
  1876     2174      1903     2220
  1877     2197      1904     2198
  1878     2234      1905     2170
  1879     2227      1906     2202
  1880     2215      1907     2234
  1881     2188      1908     2188
  1882     2152      1909     2183
  1883     2192      1910     2205
  1884     2194      1911     2202
  1885     2196      1912     2229
  1886     2202      1913     2208
  1887     2180      1914     2231
  1888     2174      1915     2231
  1889     2181      1916     2248
  1890     2177      1917     2246
  1891     2168      1918     2237
  1892     2208      1919     2209
  1893     2195      1920     2249
  1894     2200

ANDAMAN ISLANDS

Information for -

PORT BLAIR (11 41N, 92 46E) (540/001 1916-20 1952-57 1960-64)

P.S.A.: Period     : 1880-1920
        Authorities: Survey of India, Dehra Dun
        Datum      : Local B.M. (See Eccles reference in Section 3).
        Observation: hourly

Data -

  YEAR   PORT BLAIR     YEAR   PORT BLAIR

  1880     1461         1901     1458
  1881     1438         1902     1438
  1882     1436         1903     1483
  1883     1440         1904     1459
  1884     1429         1905     1433
  1885     1406         1906     1458
  1886     1373         1907     1473
  1887     1435         1908     1435
  1888     1410         1909     1484
  1889     1398         1910     1487
  1890     1404         1911     1465
  1891     1404         1912     1472
  1892     1466         1913     1470
  1893     1426         1914     1468
  1894     1445         1915     1504
  1895     1420         1916     1492
  1896     1449         1917     1474
  1897     1463         1918     1494
  1898     1462         1919     1480
  1899     1457         1920     1490
  1900     1448

INDIA

Information for -

HANSTAL                (22 56N, 70 21E) (Not in the PSMSL)
NAVINAR                (22 45N, 69 43E) (Not in the PSMSL)
OKHA POINT             (22 28N, 69 05E) (Not in the PSMSL)
PORBANDAR              (21 38N, 69 37E) (Not in the PSMSL)
PORT ALBERT VICTOR     (20 57N, 71 32E) (Not in the PSMSL)
BHAVNAGAR              (21 48N, 72 09E) (500/031 1937-65, all in RLR)
BOMBAY (PRINCE'S DOCK) (18 57N, 72 50E) (500/051 1916-20, all in RLR)
                 (Bombay Apollo Bandar 500/041 1878-1964, all in RLR
            is connectable to Prince's Dock with the same RLR factor)
MORMUGAO               (15 25N, 73 48E) (500/065 1969-78, all in RLR)
KARWAR                 (14 48N, 74 06E) (500/067 1970-78, all in RLR)
BEYPORE                (11 10N, 75 48E) (Not in the PSMSL)
COCHIN                 (09 58N, 76 15E) (500/081 1939-56 1958-78,
                                             all in RLR)
MINICOY IS.            (08 17N, 73 03E) (455/011 1963-64 1966 1970-75
                                                 1977)
TUTICORIN              (08 48N, 78 09E) (500/083 1964-66 1968-78,
                                             all in RLR)
PAMBAN PASS            (09 16N, 79 12E) (Not in the PSMSL)
NEGAPATAM              (10 46N, 79 51E) (500/087 1971-77, all in RLR)
MADRAS                 (13 06N, 80 18E) (500/091 1916-20 1952-64 1966-78,
                                             all in RLR)
COCANADA               (16 56N, 82 15E) (Not in the PSMSL)
VIZAGAPATAM            (17 41N, 83 17E) (500/101 1937-64 1966-68 1970-78,
                                             all in RLR)
FALSE POINT            (20 25N, 86 47E) (Not in the PSMSL)
DUBLAT                 (21 38N, 88 08E) (500/121 1881-86, all in RLR)
DIAMOND HARBOUR        (22 11N, 88 11E) (500/131 1948-64, all in RLR)
KIDDERPORE             (22 32N, 88 20E) (500/151 1881-93 1921-31,
                                             all in RLR)

P.S.A.: Period     : as shown below
        Authorities: Survey of India, Dehra Dun
        Datum      : Local B.M. (See Eccles reference in Section 3).
        Observation: hourly

Data -

                                                  PORT
                              OKHA               ALBERT
  YEAR   HANSTAL   NAVINAR   POINT   PORBANDAR   VICTOR   BHAVNAGAR

  1874    4978       4706     2941       ..        ..         ..

  1881     ..         ..       ..        ..       4228        ..

  1889     ..         ..       ..        ..        ..        6920
  1890     ..         ..       ..        ..        ..        6932
  1891     ..         ..       ..        ..        ..        6886
  1892     ..         ..       ..        ..        ..        6919
  1893     ..         ..       ..       1868       ..        6873
  1894     ..         ..       ..       1969       ..         ..

  1900     ..         ..       ..       2238      2944        ..
  1901     ..         ..       ..       2259      2971        ..
  1902     ..         ..       ..        ..       3005        ..
  1903     ..         ..       ..        ..       3009        ..

  1905     ..         ..      2925       ..        ..         ..

         BOMBAY
       (PRINCE'S                                    MINICOY
  YEAR   DOCK)    MORMUGAO  KARWAR  BEYPORE  COCHIN   IS.    TUTICORIN

  1878    ..         ..      1722     1641      ..    ..         ..
  1879    ..         ..      1689     1643      ..    ..         ..
  1880    ..         ..      1696     1650      ..    ..         ..
  1881    ..         ..      1681     1650      ..    ..         ..
  1882    ..         ..      1674     1644      ..    ..         ..
  1883    ..         ..       ..      1616      ..    ..         ..
  1884    ..        1680      ..       ..       ..    ..         ..
  1885    ..        1700      ..       ..       ..    ..         ..
  1886    ..        1699      ..       ..      738    ..         ..
  1887    ..        1672      ..       ..      719    ..         ..
  1888   2532       1661      ..       ..      703    ..        637
  1889   2525        ..       ..       ..      738    ..        666
  1890   2539        ..       ..       ..      715    ..        655
  1891   2507        ..       ..       ..      710   1577       632
  1892   2556        ..       ..       ..       ..   1606        ..
  1893   2516        ..       ..       ..       ..   1599        ..
  1894   2514        ..       ..       ..       ..   1585        ..
  1895   2522        ..       ..       ..       ..   1583        ..
  1896   2524        ..       ..       ..       ..    ..         ..
  1897   2518        ..       ..       ..       ..    ..         ..
  1898   2529        ..       ..       ..       ..    ..         ..
  1899   2503        ..       ..       ..       ..    ..         ..
  1900   2458        ..       ..       ..       ..    ..         ..
  1901   2511        ..       ..       ..       ..    ..         ..
  1902   2555        ..       ..       ..       ..    ..         ..
  1903   2527        ..       ..       ..       ..    ..         ..
  1904   2492        ..       ..       ..       ..    ..         ..
  1905   2433        ..       ..       ..       ..    ..         ..
  1906   2435        ..       ..       ..       ..    ..         ..
  1907   2514        ..       ..       ..       ..    ..         ..
  1908   2473        ..       ..       ..       ..    ..         ..
  1909   2475        ..       ..       ..       ..    ..         ..
  1910   2500        ..       ..       ..       ..    ..         ..
  1911   2499        ..       ..       ..       ..    ..         ..
  1912   2530        ..       ..       ..       ..    ..         ..
  1913   2506        ..       ..       ..       ..    ..         ..
  1914   2535        ..       ..       ..       ..    ..         ..
  1915   2525        ..       ..       ..       ..    ..         ..
  1916   2562        ..       ..       ..       ..    ..         ..
  1917   2552        ..       ..       ..       ..    ..         ..
  1918   2530        ..       ..       ..       ..    ..         ..
  1919   2547        ..       ..       ..       ..    ..         ..
  1920   2521        ..       ..       ..       ..    ..         ..

          PAMBAN
  YEAR     PASS     KIDDERPORE  MADRAS   COCANADA   VIZAGAPATAM

  1878     813         ..         ..        ..           ..
  1879     825         ..         ..        ..          1521
  1880     841         ..        686        ..          1499
  1881     824         ..        673        ..          1466
  1882      ..         ..        664        ..          1467
  1883      ..         ..        664        ..          1467
  1884      ..         ..        650        ..          1411
  1885      ..         ..        625        ..           ..
  1886      ..         ..        707       1673          ..
  1887      ..         ..        691       1623          ..
  1888      ..         ..        650       1571          ..
  1889      ..         ..        717       1650          ..
  1890      ..         ..         ..       1618          ..

  1894      ..        3470        ..        ..           ..
  1895      ..        3193       663        ..           ..
  1896      ..        3085       603        ..           ..
  1897      ..        3211       695        ..           ..
  1898      ..        3310       701        ..           ..
  1899      ..        3249       723        ..           ..
  1900      ..        3232       661        ..           ..
  1901      ..        3157       696        ..           ..
  1902      ..        3169       638        ..           ..
  1903      ..        3265       711        ..           ..
  1904      ..        3301       702        ..           ..
  1905      ..        3229       713        ..           ..
  1906      ..        3268       746        ..           ..
  1907      ..        3157       699        ..           ..
  1908      ..        3169       653        ..           ..
  1909      ..        3283       717        ..           ..
  1910      ..        3321       735        ..           ..
  1911      ..        3286       700        ..           ..
  1912      ..        3144       712        ..           ..
  1913      ..        3199       720        ..           ..
  1914      ..        3143       675        ..           ..
  1915      ..        3186       710        ..           ..
  1916      ..        3293       732        ..           ..
  1917      ..        3294       722        ..           ..
  1918      ..        3145       677        ..           ..
  1919      ..        3164       704        ..           ..
  1920      ..        3100       706        ..           ..

  YEAR   FALSE POINT   DUBLAT   DIAMOND HARBOUR   NEGAPATAM

  1881      2302        4387         2736            608
  1882      2316        4419         2747            624
  1883      2314        4394         2743             ..
  1884      2284        4383         2712             ..
  1885       ..         4347         2683            552
  1886       ..          ..           ..             624
  1887       ..          ..           ..             624

SRI LANKA

Information for -

COLOMBO      (06 57N, 79 51E) (520/001 1934-35)
GALLE        (06 02N, 80 13E) (Not in the PSMSL)
TRINCOMALEE  (08 33N, 81 13E) (Not in the PSMSL)

P.S.A.: Period     : as shown below
        Authorities: Survey of India, Dehra Dun
        Datum      : Local B.M. (See Eccles reference in Section 3).
        Observation: hourly

Data -

  YEAR   COLOMBO   GALLE   TRINCOMALEE

  1884     673      810         ..
  1885     689      823         ..
  1886     702      817         ..
  1887     670      794         ..
  1888     644      783         ..
  1889     675      818         ..
  1890      ..       ..        561
  1891      ..       ..        557
  1892      ..       ..        623
  1893      ..       ..        606
  1894      ..       ..        598
  1895      ..       ..        588

BANGLADESH

Information for -

CHITTAGONG (22 20N, 91 50E) (510/011 1937-48 1956-61)
                            (510/021 1954-60)
                            (510/023 1960-68)
                            (510/025 1961-68)

P.S.A.: Period     : 1886-90
        Authorities: Survey of India, Dehra Dun
        Datum      : Local B.M. (See Eccles reference in Section 3).
        Observation: hourly

Data -

  YEAR   CHITTAGONG

  1886      2515
  1887      2422
  1888      2415
  1889      2465
  1890      2431

BURMA

Information for -

AKYAB           (20 08N, 92 54E) (530/001 1937-42)
DIAMOND ISLLAND (15 52N, 94 17E) (Not in the PSMSL)
ELEPHANT POINT  (16 30N, 96 18E) (Not in the PSMSL)
RANGOON         (18 46N, 96 10E) (530/011 1916-20 1937-41 1947-55
                                          1957-62)
MOULMEIN        (16 29N, 97 37E) (530/021 1954-64)
AMHERST         (16 05N, 97 34E) (530/031 1954-64)
MERGUI          (12 26N, 98 36E) (Not in the PSMSL)

P.S.A.: Period     : as shown below
        Authorities: Survey of India, Dehra Dun
        Datum      : Local B.M. (See Eccles reference in Section 3).
        Observation: hourly

Data -

                 DIAMOND  ELEPHANT
  YEAR   AKYAB   ISLAND    POINT   RANGOON MOULMEIN AMHERST MERGUI

  1880     ..      ..       5046    3203     2576    4143     ..
  1881     ..      ..        ..     3174     2639    4259     ..
  1882     ..      ..        ..     3166     2639    4176     ..
  1883     ..      ..        ..     3157     2663    4193     ..
  1884     ..      ..       3785    3101     2483    4142     ..
  1885     ..      ..       3580    3071     2557    4057     ..
  1886     ..      ..       3657    3172      ..      ..      ..
  1887    2282     ..       3652    3107      ..      ..      ..
  1888    2265     ..       3628    3097      ..      ..      ..
  1889    2342     ..        ..     3139      ..      ..     3988
  1890    2297     ..        ..     3162      ..      ..     3957
  1891    2271     ..        ..     3045      ..      ..     3933
  1892     ..      ..        ..     3128      ..      ..     3962
  1893     ..      ..        ..     3114      ..      ..     3958
  1894     ..      ..        ..     3094      ..      ..      ..
  1895     ..     2177       ..     3058      ..      ..      ..
  1896     ..     2174       ..     3069      ..      ..      ..
  1897     ..     2233       ..     3108      ..      ..      ..
  1898     ..     2226       ..     3113      ..      ..      ..
  1899     ..     2228       ..     3146      ..      ..      ..
  1900     ..      ..        ..     3095      ..      ..      ..
  1901     ..      ..        ..     3125      ..      ..      ..
  1902     ..      ..        ..     3057      ..      ..      ..
  1903     ..      ..        ..     3127      ..      ..      ..
  1904     ..      ..        ..     3132      ..      ..      ..
  1905     ..      ..        ..     3112      ..      ..      ..
  1906     ..      ..        ..     3135      ..      ..      ..
  1907     ..      ..        ..     3121      ..      ..      ..
  1908     ..      ..        ..     3088      ..      ..      ..
  1909     ..      ..        ..     3140     2622     ..      ..
  1910     ..      ..        ..     3163     2628     ..      ..
  1911     ..      ..        ..     3154     2618     ..      ..
  1912     ..      ..        ..     3114     2523     ..      ..
  1913     ..      ..        ..     3107     2563     ..      ..
  1914     ..      ..        ..     3111     2558     ..      ..
  1915     ..      ..        ..     3173     2575     ..      ..
  1916     ..      ..        ..     3138     2509     ..      ..
  1917     ..      ..        ..     3140     2568     ..      ..
  1918     ..      ..        ..     3163     2719     ..      ..
  1919     ..      ..        ..     3144     2652     ..      ..
  1920     ..      ..        ..     3142     2632     ..      ..

JAPAN

Information for -

HUKABORI         (32 41N, 129 49E) (Not in the PSMSL)
HAMADA (TONOURA) (34 55N, 132 04E) (647/021 1894-1955 1957-82,all in RLR)
SAKAI            (35 33N, 133 14E) (647/041 1957-82, all in RLR)
WAZIMA           (37 24N, 136 54E) (647/071 1900-84, RLR 1930-84)
IWASAKI          (40 35N, 139 55E) (647/101 1898-1938 1951-70,
                                        RLR 1958-70)
OTARU (OSYORO)   (43 13N, 141 03E) (641/051 1906-33)
HANASAKI         (43 17N, 145 35E) (641/011 1900-40 1954-77, RLR 1957-77)
                                   (641/012 1977-82)
AIKAWA           (38 18N, 141 30E) (642/031 1900-24 1957-66 1968-82,
                                        RLR 1958-66 1968-82)
YOKOHAMA         (35 29N, 139 39E) (642/075 1975-82)
ABURATUBO        (35 09N, 139 37E) (642/091 1900-45 1947-84,
                                        RLR 1930-45 1947-84)
TOBA             (34 29N, 136 51E) (642/134 1950-77, all in RLR)
                                   (642/135 1977-82)
KUSIMOTO         (33 28N, 136 47E) (642/141 1900-24 1957-82, RLR 1957-82)
SIMOTU           (34 07N, 135 08E) (643/011 1965-66)
KOBE             (34 41N, 135 11E) (643/024 1957-82, all in RLR)
UWAZIMA          (33 13N, 132 32E) (644/021 1941-68, RLR 1957-68)
                                   (644/022 1968-82, all in RLR)
HOSOSIMA         (32 25N, 131 40E) (645/011 1900-84, RLR 1930-79 1981-84)

P.S.A.: Period     : as shown below
        Authorities: Imperial Military Land Survey Department, Tokyo
                     Imperial Marine Observatory, Kobe
                     Publication by S.Hirayama
        Datum      : B.M. and Levelling System
        Observation: hourly
                     Otaru and Hanasaki are calculated from daily
                     means obtained by integration from continuous
                     readings

Data -

  YEAR  HUKABORI  HAMADA  SAKAI  WAZIMA  IWASAKI  OTARU  HANASAKI AIKAWA

  1894     ..        ..      ..     ..      ..      ..       ..    -3654
  1895     ..      -3699     ..     ..      ..      ..       ..    -3651
  1896     ..      -3720     ..     ..      ..      ..       ..      ..
  1897   -3986       ..      ..     ..      ..      ..     -3696     ..
  1898   -3982       ..      ..     ..      ..      ..       ..      ..
  1899   -3996       ..      ..     ..      ..      ..     -3705     ..
  1900     ..        ..      ..     ..      ..      ..     -3659     ..
  1901   -4017     -3703     ..   -3715     ..      ..     -3666     ..
  1902     ..      -3735     ..   -3728   -5235   -3248    -3665     ..
  1903     ..      -3732     ..   -3714   -5218   -3242      ..    -3522
  1904     ..      -3689     ..   -3697   -5193     ..       ..    -3525
  1905   -3994       ..      ..   -3707   -5203     ..       ..      ..
  1906     ..        ..      ..     ..    -5218     ..       ..    -3474
  1907     ..        ..      ..     ..    -5230     ..       ..      ..
  1908     ..        ..      ..     ..      ..      ..       ..      ..

  1926     ..        ..    -501     ..      ..      ..       ..      ..
  1927     ..        ..      ..     ..      ..      ..       ..      ..
  1927/28  ..        ..      ..     ..      ..      ..       ..      ..

  YEAR YOKOHAMA ABURATUBO  TOBA  KUSIMOTO  SIMUTO  KOBE  UWAZIMA HOSOSIMA

  1894     ..        ..     ..       ..       ..    ..      ..      ..
  1895     ..      -3668    ..       ..       ..    ..      ..    -4194
  1896     ..      -3679    ..       ..       ..    ..      ..    -4192
  1897     ..      -3638    ..     -3780      ..    ..      ..    -4116
  1898     ..      -3650    ..     -3794      ..    ..      ..      ..
  1899     ..        ..     ..     -3776      ..    ..      ..      ..
  1900   -1306       ..     ..       ..       ..  -1409     ..      ..
  1901   -1363       ..     ..       ..       ..  -1402     ..      ..
  1902   -1347       ..     ..       ..       ..  -1415     ..      ..
  1903   -1362       ..     ..       ..       ..  -1463     ..      ..
  1904   -1373     -3634    ..     -3742      ..  -1490     ..      ..
  1905   -1367       ..     ..     -3741      ..    ..      ..      ..
  1906     ..        ..     ..       ..       ..  -1430     ..    -4138
  1907     ..        ..     ..       ..       ..    ..      ..      ..
  1908     ..        ..     ..       ..       ..    ..      ..      ..

  1926     ..        ..     ..       ..       ..    ..      ..      ..
  1927     ..        ..   -2165      ..       ..    ..      ..      ..
  1927/28  ..        ..     ..       ..     -1694   ..    -1614     ..

FORMOSA

Information for -

KIRUN  (25 09N, 121 45E) (612/001 1904-24)
TAKAO  (22 37N, 120 16E) (612/011 1904-43)

P.S.A.: Period     : as shown below
        Authorities: Imperial Military Land Survey Department, Tokyo
                     Publication by S.Hirayama
        Datum      : unspecified
        Observation: calculated from daily means obtained by
                     integration from continuous readings

Data -

  YEAR     KIRUN   TAKAO

  1904       ..    -3382
  1905     -3099   -3424
  1906     -3048     ..
  1907     -3047     ..
  1908     -3040     ..

AUSTRALIA

Information for -

BRISBANE   (27 19S, 153 10E) (680/078 1961-64 1966-73, RLR 1966-73)
BALLINA    (28 52S, 153 37E) (680/081 1928-38 1959-66, RLR 1959-64)
NEWCASTLE  (32 55S, 151 48E) (680/131 1928-38 1946-61, all in RLR)
                             (680/132 1972-84, all in RLR)
                             (680/133 1925-84, all in RLR)
SYDNEY     (33 51S, 151 14E) (680/141 1897-1985, all in RLR)
ALBANY     (35 02S, 117 54E) (680/451 1923-24 1957-63 1965-79,
                                  RLR 1966-76)
FREMANTLE  (32 03S, 115 44E) (680/471 1913-14 1937-38 1947 1957-64
                                      1967-79)

P.S.A.: Period     : as shown below
        Authorities: Hydrographic Department of Admiralty, London
                     Department of Harbours and Marine, Brisbane
                     A publication by Mr.T.Wright
                     A publication by Mr.F.J.Selby
                     A publication by Mr.H.B.Curlewis
                     Harbour Authorities
                     Government Astronomer of West Australia.
        Datum      : all 'local'
        Observation: hourly except for Brisbane 1865-66 and Sydney 1888
                     which are Mean Tide Level

Data -

  YEAR  BRISBANE   BALLINA   NEWCASTLE   SYDNEY   ALBANY   FREMANTLE

  1865/6  2170        ..        ..         ..       ..        ..

  1873     ..         ..        ..        1076      ..        ..
  1874     ..         ..        ..        1104      ..        ..
  1875     ..         ..        ..        1087      ..        ..
  1876     ..         ..        ..        1067      ..        ..

  1876/77  ..         ..        ..         ..      587        ..
                                ..
  1877     ..         ..        ..        1026      ..        ..
  1878     ..         ..        ..        1004      ..        ..
  1879     ..         ..        ..         990      ..        ..
  1880     ..         ..        ..         945      ..        ..
  1881     ..         ..        ..         777      ..        ..
  1882     ..         ..        ..         764      ..        ..
  1883     ..         ..        ..         781      ..        ..
  1884     ..         ..        ..         786      ..        ..
  1885     ..         ..        ..         748      ..        ..

  1888     ..         ..        ..         746      ..        ..

  1896    1055        ..        ..          ..      ..        ..

  1898     ..        610        ..          ..      ..        ..

  1900     ..         ..       925          ..      ..        ..

  1908    1042        ..        ..          ..      ..       628u
  1909     ..         ..        ..          ..      ..       628u
  1910     ..         ..        ..          ..      ..       628u
  1911     ..         ..        ..          ..      ..       668u
  1912     ..         ..        ..          ..      ..       668u

Notes -

'u' indicates uncertainty in the significance of the data

NEW ZEALAND

Information for -

AUCKLAND       (36 51S, 174 49E) (690/001 1917-19 1921-23 1937 1941
                                          1960-61 1984,
                                      RLR 1917-19 1921-23 1937 1941
                                          1960-61)
WELLINGTON     (41 17S, 174 48E) (690/011 1918-19 1921-24 1927 1930
                                          1937 1939 1942 1961 1984)
PORT LYTTELTON (43 36S, 172 51E) (690/021 1923-27 1960-64, all in RLR)
PORT CHALMERS  (45 49S, 170 39E) (Not in the PSMSL)
DUNEDIN        (45 53S, 170 33E) (690/031 1923-27 1937 1963, all in RLR)
WESTPORT       (41 46S, 171 37E) (690/061 1962 1984)
NEW PLYMOUTH   (39 03S, 174 02E) (690/081 1962-63 1984)

P.S.A.: Period     : as shown below
        Authorities: Department of Lands and Surveys, Wellington
                     Harbour Authorities
                     A publication by Mr.T.Wright
        Datum      : all 'local'
        Observation: hourly except Auckland 1900-01 and Wellington
                     1901 which are Mean Tide Level

Data -

                               PORT     PORT                      NEW
  YEAR  AUCKLAND WELLINGTON LYTTELTON CHALMERS DUNEDIN WESTPORT PLYMOUTH

  1900/1  1942       ..         ..       ..       ..      ..       ..
  1901     ..       836         ..      990       ..      ..       ..
  1901/2   ..        ..        898       ..       ..      ..       ..

  1909    1902      893         ..       ..       ..      ..       ..
  1910     ..        ..         ..       ..       ..      ..       ..
  1911     ..        ..         ..       ..       ..      ..       ..
  1912     ..        ..         ..       ..      983      ..       ..
  1913     ..        ..         ..       ..       ..      ..       ..
  1914     ..        ..        911       ..      956      ..       ..
  1915     ..       857         ..       ..      993      ..       ..
  1916     ..        ..         ..       ..       ..      ..       ..
  1917    1929       ..         ..       ..       ..      ..       ..
  1918    1920       ..        980       ..      999     1511    1676
  1919    1868      939        905       ..       ..     1437    1603
  1920     ..        ..         ..       ..       ..     1424    1606
  1921     ..        ..         ..       ..       ..     1436    1615
  1922     ..        ..         ..       ..       ..     1461     ..

CAROLINE ISLANDS

Information for -

PALAU (07 20N, 134 29E) (710/021 'MALAKAL' 1974-83, all in RLR)

P.S.A.: Period     : 1926
        Authorities: Meteorological Observatory, Palau
                     Imperial Marine Observatory, Kobe
        Datum      : B.M.
        Observation: from daily means calculated from continuous
                     records by integration

Data -

  YEAR     PALAU

  1926     -1152*

Notes -

'*' indicates the above value has been truncated from the value in P.S.A.

CANADA (PACIFIC COAST)

Information for -

PORT SIMPSON   (54 34N, 130 26W) (Not in the PSMSL)
PRINCE RUPERT  (54 19N, 130 20W) (822/001 1933 1939-41 1943-80,
                                      all in RLR)
WADHAMS        (51 24N, 127 38W) (Not in the PSMSL)
VANCOUVER      (49 18N, 123 07W) (822/071 1910-23 1940-41 1943-80,
                                      all in RLR)
SAND HEADS     (49 07N, 123 17W) (Not in the PSMSL)
VICTORIA       (48 26N, 123 23W) (822/101 1909-80, all in RLR)
CLAYOQUOT      (49 09N, 125 55W) (822/116 'TOFINO' 1935 1940-41
                                      1943-80, RLR 1962-80)

P.S.A.: Period     : as shown below
        Authorities: Canadian Hydrographic Service, Ottawa
                     Tidal and Currents Survey, Ottawa
                     Messrs.E.Roberts and Sons, London
                     Liverpool Observatory and Tidal Institute
        Datum      : all 'local' - see P.S.A. for details
        Observation: hourly or hourly with allowance for incomplete
                     tidal periods

POINT ATKINSON (CAULFEILD) (49 20N, 123 15W) (822/051 1914-19 1921-22
                               1927 1932-33 1944-45 1947-80, all in RLR)

P.S.F.: Period     : 1914/15-1920/21, 1944-46, 1957-59
        Authority  : Canadian Hydrographic Service, Ottawa
        Datum      : measured to local B.M.
        Observation: hourly with allowance for incomplete tidal periods

FULFORD HARBOUR (48 46N, 123 27W) (822/096 1960-80, all in RLR)

P.S.F.: Period     : 1953-59
        Authority  : Canadian Hydrographic Service, Ottawa
        Datum      : not specified
        Observation: hourly

Data -

            PORT   PRINCE             POINT                FULFORD
  YEAR     SIMPSON RUPERT WADHAMS   ATKINSON   VANCOUVER   HARBOUR
                                   (CAULFEILD)

  1902/03   3858     ..     ..          ..        2464        ..
  1903/04    ..      ..     ..          ..         ..         ..
  1904/05   3835     ..     ..          ..         ..         ..
  1905/06   3857     ..     ..          ..        2452        ..
  1906/07   3818    3819   2673         ..        2463        ..
  1907/08   3794    3815   2637         ..        2443        ..
  1908/09   3780     ..    2607         ..        2453        ..
  1909/10    ..     3801   2686         ..        2431        ..
  1910/11    ..     3790   2724         ..         ..         ..
  1911/12   3808     ..     ..          ..        2435        ..
  1912/13   3854    3795    ..          ..        2449        ..
  1913/14   3910    3891    ..          ..        2452        ..
  1914/15   3910    3893    ..         2707       2500        ..
  1915/16    ..     3821    ..         2658       2485        ..
  1916/17   3756    3751    ..         2585       2392        ..
  1917/18    ..     3785    ..         2649       2455        ..
  1918/19   3855     ..     ..         2676       2486        ..
  1919/20   3759     ..     ..         2585       2405        ..
  1920/21    ..      ..     ..         2658       2492        ..
  1921/22    ..      ..     ..          ..        2437        ..
  1922/23    ..      ..     ..          ..        2442        ..

  1930/31    ..      ..     ..          ..        2459        ..

  1934/35    ..      ..     ..          ..        2476        ..

  1944       ..      ..     ..         2591        ..         ..
  1945       ..      ..     ..         2646        ..         ..
  1946       ..      ..     ..          ..         ..         ..
  1947       ..      ..     ..         2621        ..         ..
  1948       ..      ..     ..         2667        ..         ..
  1949       ..      ..     ..         2633        ..         ..
  1950       ..      ..     ..         2701        ..         ..
  1951       ..      ..     ..         2701        ..         ..
  1952       ..      ..     ..         2682        ..         ..
  1953       ..      ..     ..         2694        ..        2252
  1954       ..      ..     ..         2716        ..        2271
  1955       ..      ..     ..         2646        ..        2204
  1956       ..      ..     ..         2664        ..        2225
  1957       ..      ..     ..         2704        ..        2262
  1958       ..      ..     ..         2746        ..        2323
  1959       ..      ..     ..         2682        ..        2262

  YEAR     SAND HEADS   VICTORIA   CLAYOQUOT

  1895/96     2578        1929         ..
  1896/97     2565        1943         ..
  1897/98      ..          ..          ..
  1898/99     2583         ..          ..
  1899/1900   2609         ..          ..
  1900/01      ..          ..          ..
  1901/02     2568         ..          ..
  1902/03      ..          ..          ..
  1903/04     2608        1872         ..
  1904/05      ..          ..          ..
  1905/06      ..          ..         2227
  1906/07      ..          ..         2238
  1907/08      ..          ..          ..
  1908/09      ..          ..         2198
  1909/10      ..         1836        2234
  1910/11      ..         1837        2230
  1911/12      ..         1855        2192
  1912/13      ..         1830        2226
  1913/14      ..         1882        2268
  1914/15      ..         1921        2292
  1915/16      ..         1881        2222
  1916/17      ..         1796        2123
  1917/18      ..         1826        2194
  1918/19      ..         1905        2188
  1919/20      ..         1800        2125
  1920/21      ..         1876         ..
  1921/22      ..         1840         ..
  1922/23      ..         1825         ..
  1923/24      ..         1860         ..
  1924/25      ..         1854         ..
  1925/26      ..         1882         ..
  1926/27      ..         1875         ..
  1927/28      ..         1871         ..
  1928/29      ..         1818         ..
  1929/30      ..         1822         ..
  1930/31      ..         1893         ..
  1931/32      ..         1877         ..
  1932/33      ..         1886         ..
  1933/34      ..          ..          ..
  1934/35      ..         1802        2206
  1935/36      ..          ..          ..

CANADA (ATLANTIC COAST)

Information for -

ST.JOHN             (45 15N, 66 04W) (970/001 1906 1917 1920-21 1923-24
                                      1926-27 1929-34 1938-39 1941-80,
                                          all in RLR)
HALIFAX             (44 40N, 63 34W) (970/011 1897 1920-80, all in RLR)
ST.PAUL ISLAND      (47 12N, 60 09W) (Not in the PSMSL)
CHARLOTTETOWN       (46 13N, 63 08W) (970/031 1912-14 1917 1934 1938-80,
                                          RLR 1912-14 1917 1934 1938-69,
                                              1972-80)
FATHER POINT        (48 31N, 68 28W) (Not in the PSMSL)
QUEBEC              (46 49N, 71 11W) (970/071 1965-80, all in RLR)
S.W.POINT ANTICOSTI (49 24N, 63 36W) (Not in the PSMSL)
FORTEAU BAY         (51 27N, 56 53W) (Not in the PSMSL)

P.S.A.: Period     : as shown below
        Authorities: Canadian Hydrographic Service, Ottawa
                     Tidal and Currents Survey, Ottawa
                     Liverpool Observatory and Tidal Institute
                     Messrs.E.Roberts and Sons, London
        Datum      : all 'local' - see P.S.A. for details
        Observation: hourly and hourly with allowance for incomplete
                     tidal periods

Data -

                                CHAR-
          ST.         ST.PAUL   LOTTE   FATHER          S.W.POINT FORTEAU
 YEAR    JOHN HALIFAX ISLAND    -TOWN   POINT   QUEBEC  ANTICOSTI   BAY

1851/52   ..    1415    ..        ..      ..      ..        ..       ..
1852/53   ..    1411    ..        ..      ..      ..        ..       ..

1860/61   ..    1167    ..        ..      ..      ..        ..       ..
1861/62   ..    1338    ..        ..      ..      ..        ..       ..

1894/95  4253    ..     ..        ..      ..     2638      1059      ..
1895/96  4251   1034   774        ..      ..     2589      1022      ..
1896/97  4259    ..     ..        ..      ..     2588      1029      ..
1897/98  4284   1071   742        ..     2298    2636      1044      ..
1898/99  4295   1070    ..        ..     2307    2610       ..      811
1899/1900 ..    1063   714        ..     2326    2603       ..      842
1900/01  4304   1080   713        ..     2370    2615       ..      872
1901/02  4303    ..     ..        ..      ..     2649       ..       ..
1902/03  4307   1085   689        ..      ..     2665       ..      876
1903/04  4244   1071   704        ..      ..     2634       ..      858
1904/05  4217   1045   702        ..     2262     ..        ..       ..
1905/06  4222   1045   680        ..     2266    2596       ..       ..
1906/07  4241    ..    696        ..     2265    2574       ..       ..
1907/08  4277    ..     ..       1468    2281    2667       ..       ..
1908/09  4292    ..    728       1514     ..     2637       ..       ..
1909/10  4313    ..    741       1521    2357    2704       ..       ..
1910/11  4261    ..    752        ..     2313    2598       ..       ..
1911/12  4281    ..    723       1473    2274    2491       ..       ..
1912/13  4261    ..    739       1512    2320    2630       ..       ..
1913/14  4243    ..    735       1494    2288    2568       ..       ..
1914/15  4255    ..    705       1479    2279    2484       ..       ..
1915/16  4278    ..    728        ..     2290    2542       ..       ..
1916/17  4310    ..    716       1490    2303    2580       ..       ..
1917/18   ..     ..    704       1510    2258    2616       ..       ..
1918/19   ..     ..    690       1494    2285    2654       ..       ..
1919/20   ..    1095   729       1514    2265    2615       ..       ..
1920/21  4275   1077   724        ..     2260     ..        ..       ..
1921/22   ..    1068   706        ..      ..      ..        ..       ..
1922/23   ..    1101   700        ..      ..      ..        ..       ..
1923/24  4273   1120    ..        ..      ..      ..        ..       ..
1924/25   ..    1078   749        ..      ..      ..        ..       ..
1925/26   ..     ..    712        ..      ..      ..        ..       ..
1926/27  4239    ..    793        ..      ..      ..        ..       ..
1927/28   ..    1111    ..        ..      ..      ..        ..       ..
1928/29   ..     ..     ..        ..      ..      ..        ..       ..
1929/30  4252    ..     ..        ..      ..      ..        ..       ..
1930/31  4289    ..     ..        ..      ..      ..        ..       ..
1931/32  4273    ..     ..        ..      ..     2580       ..       ..
1932/33  4305   1151    ..        ..      ..      ..        ..       ..
1933/34  4264    ..     ..       1498     ..      ..        ..       ..
1934/35   ..    1138    ..        ..      ..      ..        ..       ..
1935/36   ..    1128    ..        ..      ..      ..        ..       ..

                               SECTION^2

                          DATUM RELATIONSHIPS

The vertical height adjustments ('RLR factors' in PSMSL terminology)
which connect data values of Section 1 to those of the PSMSL RLR
dataset are listed below. Stations from Section 1 which have not been
included below have insufficient benchmark information to enable such
a computation. Adjustments for Norwegian and Swedish RLR stations have
also not been made; the data for the former in Section 1 are hardly
sufficient while the latter are discussed in considerable detail in the
reports of Ekman (see Section 3).

 COUNTRY     STATION        RLR FACTORS    to convert to    PSMSL RLR
 -------     -------        -----------                     ---------

 BELGIUM     OSTENDE            4621                          160/021

 FRANCE      CALAIS             7053                          190/011
             BOULOGNE           7011                          190/021
             DIEPPE             6960                          190/031
             CHERBOURG          6975  (1891 onwards only)     190/061
             MARSEILLE          6840                          230/051

 SPAIN       ALICANTE I        10400                          220/051
             (N.B. there is also an Alicante II RLR series 220/052)

 YEMEN       ADEN               5141                          485/001

 INDIA       BHAVNAGAR           159                          500/031
             (N.B. suspect RLR time series)
             BOMBAY             4466                          500/051
             (N.B. Bombay Prince's Dock 500/051 and Apollo Bandar
             500/041 are geodetically connectable and have the same
             RLR factor. The 3 data sources can be combined.)
             MORMUGAO           5167                          500/065
             COCHIN             6151                          500/081
             NEGAPATAM          6363                          500/087
             MADRAS             6253                          500/091
             VIZAGAPATAM        5594                          500/101
             DIAMOND HBR.       4188                          500/131
             KIDDERPORE         3845                          500/151

 COUNTRY     STATION        RLR FACTORS    to convert to    PSMSL RLR
 -------     -------        -----------                     ---------

 AUSTRALIA   NEWCASTLE I        6033                          680/131
             (N.B. there are also Newcastle II and III RLR time
             series 680/132 and 680/133)

 NEW ZEALAND AUCKLAND           5043  (1917-19 only)          690/001
             PORT LYTTELTON     6003                          690/021

 CANADA      VANCOUVER          4562                          822/071
             VICTORIA           5106  (1909-35 only)          822/101
             FULFORD HBR.       4792  (1953)                  822/096
                                4611  (1954-56 suspect value)
                                4792  (1957-59)
             ST.JOHN            2604                          970/001
             HALIFAX            5768                          970/011
             CHARLOTTETOWN      5434                          970/031
             QUEBEC             4454  (1911-20 and 1931-32 only)
                                                              970/071

In addition, since the publication of Pugh et al. (1987), six further
stations from the Survey of India listed in Section 1 have been added to
the RLR dataset. Their datum relationships are as follows.

 COUNTRY     STATION        RLR FACTORS    to convert to    PSMSL RLR
 -------     -------        -----------                     ---------

 PAKISTAN    KARACHI             4781                         490/021

 ANDAMAN IS. PORT BLAIR          5346                         540/001

 BURMA       AKYAB               4637                         530/001
             RANGOON             3694                         530/011
             MOULMEIN            4206                         530/021
             AMHERST             2826                         530/031

These RLR connections to the Publications Scientifiques data are the
essential 'new' information of this report. While the PSMSL RLR time
series have been employed by many researchers and the Publication
Scientifiques values have been used in a few individual studies, the
two datasets have, to our knowledge, never been connected together in
any study of sea level changes.

Plots of the resulting composite time series are shown below. In each
case a data point from Section 1 of this report is shown by a
a star, after adjustment to RLR datum as described above. RLR annual
mean values from the PSMSL databank are shown as circles (for those
for which an annual mean exists). If values are available for any year
from both sources, then the two are shown individually but the connecting
line goes through their arithmetic mean. For Bombay 1916-20 the circles
shown are averages of Prince's Dock and Apollo Bandar RLR data; all other
circles indicate Apollo Bandar data alone. For those stations for which
the annual means cross calendar years (e.g. 1851/52 etc. for Halifax,
Canada) the data points are assigned to the first year (i.e. 1851 in this
example).

For each plot a secular trend of relative mean sea level has been
computed from the total available data, sometimes with outlying years
omitted, as listed below in the same station order. These trends are
given as complementary information to the plots only and should not be
considered as scientific determinations of the real sea level trends at
each station without considerable further analysis. For several stations,
anomalous trends are suggested by the composite series, which presumably
result from unrecorded datum shifts in the very old data. For others,
there are large gaps between periods of recording which make trend
calculations less reliable. Hopefully these composite series will be
employed in more sophisticated analyses of sea level secular trends.

 STATION        No.YEARS       PERIOD      TREND (mm/year)
 -------        --------       ------      ---------------

 OSTENDE           41         1925-1980      0.97 +/- 0.24
 CALAIS            23         1932-1982     -5.53 +/- 0.49
 BOULOGNE          24         1932-1982     -0.21 +/- 0.83
 DIEPPE            33         1936-1983     -1.34 +/- 1.21
                   25         1956-1983      6.36 +/- 1.05
 CHERBOURG         74         1891-1984      1.67 +/- 0.39
 MARSEILLE         78         1885-1963      1.75 +/- 0.15
 ALICANTE I        69         1874-1969      0.41 +/- 0.16
 ADEN              81         1879-1969      1.17 +/- 0.10
                   52         1879-1930      0.10 +/- 0.14
                   30         1930-1969      2.24 +/- 0.39
 BHAVNAGAR         33         1889-1964      0.75 +/- 0.94
 (suspect RLR series)
 BOMBAY            86         1878-1964      1.27 +/- 0.13
 MORMUGAO          13         1884-1978      2.26 +/- 0.10
 COCHIN            41         1886-1977      0.96 +/- 0.20
 NEGAPATAM          7         1881-1976      0.55 +/- 0.28
 MADRAS            57         1880-1978      0.68 +/- 0.12
 VIZAGAPATAM       46         1879-1978      0.13 +/- 0.19
 DIAMOND HBR.      22         1881-1964      0.06 +/- 0.29
 KIDDERPORE        48         1882-1931     -5.49 +/- 0.90
 NEWCASTLE         27         1900-1960      2.87 +/- 0.79
 AUCKLAND          10         1917-1961      1.82 +/- 0.52
 PORT LYTTELTON    12         1901-1963      3.53 +/- 1.23
 VANCOUVER         61         1902-1980     -0.07 +/- 0.15
 VICTORIA          71         1909-1980      0.47 +/- 0.18
 FULFORD HBR.      28         1953-1980      3.28 +/- 1.55
 ST.JOHN           69         1894-1979      2.10 +/- 0.15
 HALIFAX           70         1895-1979      3.25 +/- 0.12
 CHARLOTTETOWN     48         1907-1980      2.92 +/- 0.17
 QUEBEC            26         1911-1980      0.57 +/- 0.35
 KARACHI           63         1868-1946      0.97 +/- 0.13
 PORT BLAIR        47         1880-1964      2.22 +/- 0.14
 AKYAB             10         1887-1941      1.49 +/- 0.40
 RANGOON           61         1880-1962      1.54 +/- 0.29
 MOULMEIN          28         1880-1963      3.60 +/- 0.48
 AMHERST           16         1880-1963      0.01 +/- 0.35

                                SECTION 3

       BIBLIOGRAPHY OF NON-PSMSL MEAN SEA LEVEL TABULATIONS

(1) Rijkswaterstaat corrected time series of Amsterdam sea level.

In 1945 J.van Veen published the paper 'Bestaat er een geologische
bodemdaling te Amsterdam sedert 1700?', Tijdschrift Koninklijk
Nederlandsch Aardrijkskundig Genootschap, 2e reeks, deel LXII
which listed Amsterdam levels since 1700. The gauge readings themselves
commenced in 1682. These data have since been corrected by the
Rijkswaterstaat to give a time series for 1700-1925 measured relative to
NAP. The new series is similar to van Veen's, and the new corrections
applied are rather complicated, but it is listed below in full in view of
its importance in sea level recording history; units are millimetres.

To understand the recent corrections applied to these data consult the
tables on pages 12-14 of the van Veen paper. Of these 'Middenstand'
(column 4) is 'mean sea level' while 'Halftijstand' (column 7) is 'half
tide level'. In van Veen's Fig.4 he plots the moving 3 year average of
half tide over the period 1700-1860 with a line of best fit (i.e. the
uncorrected trend line) and over the full period 1682-1930 a corrected
trend line. The data shown below are computed as follows:

(a) Period 1700-1860 (i.e. Reeks = Series A): mean sea level data
of column 4 adjusted according to the differences between the
uncorrected and the corrected trend line;

(b) Period 1861-1871 (i.e. Reeks A'): of these, mean sea level data
for 1861-1864 are uncorrected. The other seven years are half tide
plus 0.5cm (being the difference between mean sea level and half tide
according to page 12);

(c) Period 1874 onwards (i.e. Reeks A''): for this period a trend line
was drawn through the points indicated by Z ('Z-line') of Fig.4.
Next the half tide figures of the table are adjusted according to the
differences between the corrected trend line and the Z-line, after
which the 0.5cm mentioned above is added to each value.

(Contact address: Ir. J.De Ronde or Ir. J.van Malde, Dienst Getijdewateren,
van Alkemadelaan 400, Postbus 20904, 2500 EX's-gravenhage, Netherlands).

 YEAR    LEVEL   YEAR    LEVEL   YEAR    LEVEL   YEAR    LEVEL
 ----    -----   ----    -----   ----    -----   ----    -----

 1700     -152   1768     -160   1821     -123   1875     -125
 1701     -158   1769      -86   1822     -125   1876      -80
 1702     -132   1770      -94   1823     -198   1877      -43
 1703     -172   1771      -87   1824      -97   1878      -60
 1704     -135   1772     -142   1825      -87   1879      -79
 1705     -167   1773     -143   1826     -126   1880      -31
 1706     -192   1774     -135   1827      -97   1881      -64
 1707     -153   1775     -127   1828     -124   1882      -74
 1708     -149   1776     -150   1829     -119   1883      -58
 1709     -187   1777     -131   1830     -141   1884      -54
 1710     -168   1778     -155   1831      -94   1885      -75
 1711     -140   1779     -131   1832     -141   1886      -88
 1712     -129   1780     -130   1833     -106   1887      -64
 1713     -151   1781     -134   1834      -77   1888      -86
 1714     -106   1782     -160   1835     -105   1889      -53
 1715     -172   1783     -157   1836      -96   1890      -84
 1716     -168   1784     -173   1837      -88   1891      -94
 1717     -164   1785     -178   1838     -117   1892      -78
 1718     -185   1786     -178   1839     -114   1893      -67
 1719     -182   1787     -125   1840     -111   1894      -92
 1720     -109   1788     -204   1841      -85   1895      -74
 1721     -146   1789     -161   1842     -132   1896      -81
 1722     -141   1790     -109   1843      -57   1897      -82
 1723      -99   1791      -92   1844      -53   1898      -32
 1724     -145   1792     -150   1845      -90   1899      -36
 1725     -166   1793     -154   1846      -80   1900      -67
 1726     -108   1794     -118   1847     -118   1901      -45
 1727     -136   1795     -121   1848     -141   1902      -62
 1728     -195   1796     -157   1849     -101   1903      -25
 1729     -176   1797     -134   1850      -91   1904      -58
 1730     -148   1798     -135   1851     -102   1905      -32
 1731     -108   1799     -177   1852      -97   1906      -34
 1732     -134   1800     -175   1853     -113   1907      -75
 1733     -160   1801      -90   1854      -49   1908      -66
 1734     -165   1802     -159   1855     -111   1909      -36
 1735     -181   1803     -172   1856      -85   1910      -12
 1736     -109   1804     -130   1857     -145   1911      -24
 1737      -92   1805     -142   1858     -137   1912       -7
 1738     -152   1806     -106   1859     -102   1913      -22
 1739     -123   1807     -105   1860     -113   1914        0
 1740     -124   1808     -183   1861      -94   1915        7
 1741     -122   1809     -151   1862     -125   1916       -5
 1742     -154   1810     -128   1863     -121   1917      -37
 1743     -144   1811     -137   1864     -161   1918      -44
 1744     -148   1812     -141   1865     -157   1919      -38
 1745     -178   1813     -150   1866      -93   1920       14
 1746     -178   1814     -185   1867      -58   1921      -10
 1747     -142   1815     -144   1868      -91   1922      -16
 1748     -147   1816     -113   1869      -75   1923      -38
 1749     -167   1817     -102   1870     -129   1925       29
 -------------   1818     -160   1871     -141
 1766     -175   1819     -158   -------------
 1767     -111   1820     -194   1874     -110

(2) 'Apparent land uplift at 20 sea level stations in Sweden 1895-1984'
by M.Ekman, National Land Survey of Sweden Report 1986:6. (Address:
National Land Survey of Sweden, Division of Geodetic Research,
S-801 12, Gavle, Sweden)

This contains annual mean values from 20 stations along the Swedish
coast, most of which are from the Swedish Meteorological and
Hydrological Institute (SMHI), which is the supplier of Swedish data
to the PSMSL, and three records (Stockholm, Gronskar and Gavle) for
which the author is responsible.

(3) 'A reinvestigation of the world's second longest series of sea
level observations: Stockholm 1774-1984' by M.Ekman, National Land
Survey of Sweden Report 1986:4. (Address as above).

(4) 'Tables and graphs of annual mean sea level along the Japanese
coast, 1894-1975' by the Coastal Movements Data Center, Japan.
Anonymous author, published in 1976. (Address: Coastal Movements
Data Centre, Kitazato-1, Yatabe-Machi, Tsukuba-Gun, Ibaraki-Ken 305,
Japan).

This report contains mostly annual mean values which are included in the
PSMSL databank. However, several series start a few years before the
corresponding monthly and annual PSMSL series. A major exception is
Fukaura (PSMSL code 647/098), on the Japan Sea coast of northern Honshu,
which commences in 1972 in the PSMSL record but 1897 in this report.

(5) 'Monthly and annual mean sea levels at Trieste 1890-1984' by F.Stravisi
and S.Ferraro, Bollettino di Oceanologia Teorica ed Applicata, 4(2), 1986,
97-104.

This lists monthly and annual means for Trieste for 1905 onwards, which
also can be found in the PSMSL databank, together with annual-only
means for 1890-1904.

(6) In his 'A Voyage of Discovery and Research in the Southern and
Antarctic Regions, During the Years 1839-43' (London: John Murray, 447pp.)
Sir James Ross describes measurements of mean sea level made in Tasmania
and the Falkland Islands. Tasmanian measurements were made at Port Arthur
by Mr.T.J.Lempriere (July 1841) and the original benchmark still exists
('Early mean sea levels and tides in Tasmania' by B.Hamon, Search, 16,
274-277, 1985). The original observations have been lost. The Falklands
Islands measurements were made by Ross at Port Louis every half-hour
between 10 May and 6 September 1842. A copper plate recently confirmed to
be still in existence is inscribed as being '5 feet 8 inches above the
mean level of the ocean ...'. The original half-hour readings have not
been located.

(7) Annual-only values of mean tide level and mean high and low waters
for several German North Sea stations including Borkum, Busum, Cuxhaven,
Bremerhaven, Helgoland, Husum, Amrum and Wilhelmshaven are available from
the Deutsches Hydrographisches Institut in Hamburg or from the PSMSL. The
longest record is that from Cuxhaven for 1846 onwards. At the time of
writing of this report, it is expected that the corresponding monthly
means will eventually be made available; they will subsequently be
incorporated into the PSMSL databank.

(8) 'Account of the operation of the Great Trigonometrical Survey of India
XVI: Details of tidal observations' by J.Eccles, Survey of India, Dehra
Dun, 1901, 152pp contains most of the early data from the Indian
sub-continent included in Section 2. It also contains detailed descriptions
of benchmarks and site plans etc. It should be noted that, because the
benchmarks are so very well documented, these mean sea level measurements
can be considered as some of the most reliable.