**Database of the JGOFS expedition ANT X/6 aboard**

**R.V. *Polarstern***

J. W. Rommets[^1], M.H.C. Stoll\*, R.X. de Koster\*, T.F. de Bruin\*,
H.J.W. de Baar\*, U.V. Bathmann† and V. Smetacek†.

**INTRODUCTION**

The enclosed CD-ROM contains the actual database of measured variables
as well as various background information on the expedition and the
methods and other descriptions directly related to each reported
variable. The CD-ROM was mastered in a format that can be read by both
Macintosh and PC computers. It is organised in a hierarchical structure
by folders containing both text files in MS-Word for Windows 2 format
and datafiles in either Excel 4.0 or ACCESS format. Software with such
formats is not included but available from Microsoft. In addition the
textfiles have been converted to PostScript format and the datafiles
have been converted to simple ASCII formats and placed on the CD-ROM as
well.

Database Copyright © 1997 Netherlands Institute for Sea Research.
Published by Elsevier Science Ltd.

**BACKGROUND INFORMATION**

*Textfiles*

> Participating scientists (affiliations, phone, fax, internet).
>
> Participating institutes (postal addresses).
>
> JGOFS core activities (responsible scientists).
>
> Other activities (with scientists).
>
> Shipboard experiments (with scientists).
>
> Description of methods.
>
> Structure CD-ROM / MS ACCESS relational database.

*Tabulations*

> Listing of 123 stations (with geartype deployment).
>
> Listing of 211 measured variables in rosette bottles (units,
> description).

**DATABASE**

CTD sensors downcasts records of 229 CTD casts.

Rosette bottles from 229 hydrocasts of 24 samplers each (station, cast,
bottle number).

Natural radioisotopes from Gerard barrel casts.

Trace metals and nutrient data from Kevlar wire Go Flo sampling.

Metal-biota interaction experiments.

Incubations primary productivity and 15N ammonia uptake.

Net sampling results: mesozoo-, phytoplankton and mesozooplankton
grazing.

CO2 system, meteorology, chlorophyll: underway in surface waters.

Ice cover observations.

Wind velocities.

Benthic observations.

Ice biology.

**ELECTRONIC MAIL UPDATES**

Further updates of the ANTX/6 database will become available by
electronic mail through ftp-servers at the Alfred Wegener Institute
(ftp://ftp.awi-bremerhaven.de/pub).

**ENQUIRIES**

Queries about certain parts of the data can be adressed directly to the
relevant scientist(s). For this purpose a listing of names and adresses
including internet identities is provided in the file STAFF.DOC.
Enquiries relating to the CD-ROM are to be made to Joop Rommets at NIOZ
(rommets@nioz.nl) and all questions related to the electronic updates
are to be made to Ulrich Bathmann at AWI (ubathmann@awi-bremerhaven.de).

**DATA POLICY**

The data contained in this CD-ROM have been produced jointly by the
participants of the JGOFS expedition ANT X/6 and the data management
staff of the Netherlands Institute for Sea Research (NIOZ). Users of the
data are free to process these as deemed useful, provided that in any
report or publication arising from such use the source of the data is
acknowledged by referring either to the relevant individual research
article(s) in this issue of *Deep Sea Research II* or to:

Rommets, J.W., M.H.C. Stoll, R.X. de Koster, T.F. de Bruin, H.J.W. de
Baar, U.V. Bathmann and V. Smetacek (1997) Database of the JGOFS
expedition ANT X/6 aboard RV \'Polarstern\'. *Deep-Sea Research II*,
**44** (1-2), and CD-ROM Appendix.

When in such case the used ANT X/6 data is a substantial part of the
report or publication, one is expected to extend the courtesy of
informing the respective investigators, or on their behalf one of the
guest editors (Smetacek, de Baar, Bathmann, Lochte or Rutgers van der
Loeff) of this issue or the editor Rommets of the CD-ROM. This allows
the option of consideration of joint authorship.

*Acknowledgements*---Production of the database and the CD-ROM were
supported by the Netherlands Institute for Sea Research (NIOZ) and a
grant for JGOFS Southern Ocean of the Netherlands Committee for
Antarctic Research (NAAP), a subsidiary of the Netherlands Organization
for Scientific Research (NWO), coordinating Antarctic subsidies by 7
government departments. The excellent support of Anne Vindenes Allen,
Kevin Ruston, Justinia Seaman and Catherine Shaw of Elsevier Science at
Oxford in facilitating the production are gratefully acknowledged.

**REFERENCES**

Bathmann, U.V., V. Smetacek, H.J.W. de Baar, E. Fahrbach and G. Krause
(1994). The expeditions ANTARKTIS X/6-8 of the Research Vessel
*Polarstern* in 1992/1993. *Berichte zur Polarforschung*, **135**,
4-126.

[^1]: \* Netherlands Institute for Sea Research, P.O. Box 59, 1790 AB
    Den Burg, The Netherlands.

    † Alfred Wegener Institute for Polar and Marine Research, P.O. Box
    120161, 27570 Bremerhaven, Germany.