cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.18710/3pkaty/lcst0e
title: Subj5_spc_Stre_pohta_1.wav
DOI: 10.18710/3pkaty/qjskzp
title: Subj10_sing_Stre_pehta_2.wav
DOI: 10.18710/3pkaty/u11ewm
title: Subj6_sing_Stre_pohta_2.wav
DOI: 10.18710/3pkaty/xr0inm
title: Subj5_spc_PreStre_petapa_2.wav
DOI: 10.18710/7cnduj
title: Hydrographic data from Northern Norwegian fjords - 1997

description: The periodic collection of hydrophysical data along the northern Norwegian coast (from Malangen to Porsangerfjord) started in the beginning of the 20th century and some of the oldest stations are still in operation by the “Havmiljødata” sampling programme organized by UIT-The Arctic university of Norway. Systematical retrieval of the physical oceanographical data during shorter periods (1–2 years) in Tromsø and north Norway goes back to ca. 1872 when Tromsø Museum was founded. The first decades sampling was performed with hired vessels, and retrieval of hydrophysical data was connected to sampling of marine organisms. From ca. 1975 it was taken over by the University of Tromsø and from 1979 it was up running again with a new revised network. Up through the years much effort has also been put into data quality control and instrumentation (CTD) mantenance and calibration. From the early 1990s, the BFE faculty (Fakultet for biovitenskap, fiskeri og økonomi) that has had the responsibility for the data sampling organized as Havmiljødata (HMD).
description: Hydrographic data from Northern Norwegian fjords
DOI: 10.18710/c8fxid/yojgrz
title: PA11_D_a_6_LectureA.zip
DOI: 10.18710/fueqlm/pcjpvb
title: TGO_Ramfjordmoen_ionosonde_data_1985_06_PNG.zip
DOI: 10.18710/hdpqgy/jvw1ip
title: Part_2.zip

description: Results of the parameter calculation process, done in the first part of the "Permutation script.R" file
DOI: 10.18710/hdpqgy/wovriw
title: Part_3.zip

description: Preparation of the dataset for visualization of the results. It generates the results plots shown on the main article
DOI: 10.18710/hdupx3
title: Hydrographic data from Northern Norwegian fjords - 2013

description: The periodic collection of hydrophysical data along the northern Norwegian coast (from Malangen to Porsangerfjord) started in the beginning of the 20th century and some of the oldest stations are still in operation by the “Havmiljødata” sampling programme organized by UIT-The Arctic university of Norway. Systematical retrieval of the physical oceanographical data during shorter periods (1–2 years) in Tromsø and north Norway goes back to ca. 1872 when Tromsø Museum was founded. The first decades sampling was performed with hired vessels, and retrieval of hydrophysical data was connected to sampling of marine organisms. From ca. 1975 it was taken over by the University of Tromsø and from 1979 it was up running again with a new revised network. Up through the years much effort has also been put into data quality control and instrumentation (CTD) mantenance and calibration. From the early 1990s, the BFE faculty (Fakultet for biovitenskap, fiskeri og økonomi) that has had the responsibility for the data sampling organized as Havmiljødata (HMD).
description: Hydrographic data from Northern Norwegian fjords
DOI: 10.18710/irhtmp/hnwso2
title: TGO_Ramfjordmoen_ionosonde_data_1987-08_PNG.zip
DOI: 10.18710/jrruin
title: :unav

description: :unav
DOI: 10.18710/lhcgyq/qwlkve
title: molecule5_output.txt

description: 2SM, 3SM results for molecule 5
DOI: 10.18710/mteqyp/bliiyc
title: Nynorskmateriale_m+n.txt

description: See ReadMe file.
DOI: 10.18710/mteqyp/o0uqvu
title: Bokmalsmateriale_m+n.ods

description: See ReadMe file.
DOI: 10.18710/mteqyp/rgwo84
title: Kjeldeoversyn_bokmal.txt

description: See ReadMe file.
DOI: 10.18710/ppiveo/swvnpp
title: 01readme.txt
DOI: 10.18710/ppiveo/ukqd35
title: hmd_data_2010.tab
DOI: 10.18710/puxwxl/df8vho
title: 07_frames0916.tab

description: Main Old East Slavic and Middle Russian dataset. See 00_readme.txt for further details
DOI: 10.18710/puxwxl/gwwh9t
title: 10_neutral_aorists_oes.tab

description: Semantically tagged dataset of aspectually neutral Old East Slavic verbs occurring in the aorist. See 00_readme.txt for further details
DOI: 10.18710/wqqkee/ko8hpo
title: 01_ReadMeFile.txt
DOI: 10.18710/ytikaf/no9kjo
title: TGO_Ramfjordmoen_ionosonde_data_1989-11_PNG.zip
DOI: 10.18710/9uyjnb
title: :unav

description: :unav
DOI: 10.18710/9uyjnb/oczqy1
title: :unav

description: :unav
DOI: 10.18710/c8fxid/76elhw
title: PA11_D_h_3_Festsange.zip
DOI: 10.18710/c8fxid/myg1pf
title: PA11_D_c_8_StraMag.zip
DOI: 10.18710/jrruin/gdgh4n
title: :unav

description: :unav
DOI: 10.18710/3pkaty/1omchg
title: Subj7_sing_PreStre_petapa_1.wav
DOI: 10.18710/3pkaty/agpx4n
title: Subj5_sing_PreStre_patapa_2.wav
DOI: 10.18710/3pkaty/cf0c71
title: Subj6_spc_Stre_pata_3.wav
DOI: 10.18710/3pkaty/civl4j
title: Subj6_sing_PostStre_tapi_3.wav
DOI: 10.18710/3pkaty/ejq3vg
title: Subj6_sing_Stre_pita_3.wav
DOI: 10.18710/3pkaty/fre3ka
title: Subj6_spc_PreStre_petapa_2.wav
DOI: 10.18710/3pkaty/fufwni
title: Subj6_spc_PreStre_potapa_3.wav
DOI: 10.18710/3pkaty/hnpq1y
title: Subj5_sing_Stre_pota_2.wav
DOI: 10.18710/3pkaty/jzkqe8
title: Subj5_sing_PreStre_potapa_3.wav
DOI: 10.18710/3pkaty/speici
title: Subj7_spc_PostStre_tapi_1.wav
DOI: 10.18710/3pkaty/up46zu
title: Subj5_sing_PostStre_tapu_3.wav
DOI: 10.18710/3pkaty/wnuvli
title: Subj6_spc_PreStre_putapa_2.wav
DOI: 10.18710/3pkaty/z8lkzm
title: Subj6_spc_Stre_pohta_1.wav
DOI: 10.18710/3pkaty/zfxrld
title: Subj5_sing_PreStre_potapa_2.wav
DOI: 10.18710/c8fxid
title: Digitized Archive PA 11 John Scott Keltie and Fridtjof Nansen: Correspondence and other documents

description: In the late 1990s, the University Library of Tromsø (now University of Tromsø – The Arctic University of Norway) bought a set of archival materials from J.W. Cappelens antikvariat in Oslo. Its ownership prior to J.W. Cappelens antikvariat is unknown. 
The core of the material is a series of autograph letters exchanged between the famous Norwegian explorer, diplomat and scientist Fridtjof Nansen (1861–1930) and his British associate, fellow and long-serving secretary of the Royal Geographical Society of London John Scott Keltie (1840–1927). Several of the letters are not included in the standard edition of Nansen’s correspondence, edited by Steinar Kjærheim (5 vols., Oslo 1961–78). There are also letters exchanged between Keltie and other correspondents. Furthermore, the material includes newspaper clips, telegrams, a handwritten map, etc., which serve to document the nature of the relationship between the two men. Keltie’s important role in the shaping of Nansen’s image as an explorer of international renown is particularly well documented.
DOI: 10.18710/c8fxid/8isach
title: PA11_D_d_2_Nansen.zip
DOI: 10.18710/c8fxid/bu4o2z
title: PA11_D_h_2_InvitOgProg.zip
DOI: 10.18710/c8fxid/iwloba
title: PA11_D_a_8_PetersenC.zip
DOI: 10.18710/c8fxid/owlurd
title: PA11_D_g_2_TelegramFlere.zip
DOI: 10.18710/c8fxid/tjz3is
title: PA11_D_a_7_NansenAlex.zip
DOI: 10.18710/egulyj
title: TGO Ramfjordmoen Ionosonde Data May 1985

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from May 01-31, 1985.&lt;/p&gt;&lt;p&gt;About the Tromsø Ionosonde (1984-1992): During the period 1984-1992 the Ionosonde was situated at 69° 35' N, 19° 13' E at Ramfjordmoen near Tromsø, Norway and operated by the Auroral Observatory of the University of Tromsø. The instrument operated at this location prior to 1984, and still operates there (as of 2018); see the related publication for details. The instrument was fully digitized and based on a Hewlett Packard 21MX computer. The combination of a low power transmitter and complementary code transmission made the Tromsø ionosonde equivalent to a conventional ionosonde (at the time) with 20 µs pulses and 16 kW peak power. Routine operation was one ionogram every 20 min with a frequency sweep from 1 MHz to 12 MHz lasting between 2 and 3 min. For the 100 km altitude region the precision of determining the height of a sporadic E layer is ± 3 km. The ionograms were stored on magnetic tape. A noise discrimination routine in the computer program reduced the stored data to less than 10% of the raw data. In this way one 2400' tape held about 1300 ionograms, equivalent to 18 days' data. The tapes were 4-11 years old when they were read, resulting in around 20% data-loss during the process of transferring to other media. Today, storage is on online disk and with offline an archive on a variety of media.&lt;/p&gt;
description: TGO Ionosonde Data
DOI: 10.18710/hdupx3/6lbkgq
title: hmd_data_2013.tab
DOI: 10.18710/ke0u7y/anyzqh
title: TGO_Ramfjordmoen_ionosonde_data_1985_07_PNG.zip
DOI: 10.18710/lhcgyq/b4cm4a
title: molecule3_2sm3sm_output_ch2cl2.txt

description: Please read README file for description of all the files
DOI: 10.18710/lhcgyq/qxpvpl
title: molecule11_output.txt

description: 2SM, 3SM results for molecule 11
DOI: 10.18710/m2iwuu/nb34ji
title: hmd_data_1992.tab
DOI: 10.18710/rkcfip
title: Hydrographic data from Northern Norwegian fjords - 2002

description: The periodic collection of hydrophysical data along the northern Norwegian coast (from Malangen to Porsangerfjord) started in the beginning of the 20th century and some of the oldest stations are still in operation by the “Havmiljødata” sampling programme organized by UIT-The Arctic university of Norway. Systematical retrieval of the physical oceanographical data during shorter periods (1–2 years) in Tromsø and north Norway goes back to ca. 1872 when Tromsø Museum was founded. The first decades sampling was performed with hired vessels, and retrieval of hydrophysical data was connected to sampling of marine organisms. From ca. 1975 it was taken over by the University of Tromsø and from 1979 it was up running again with a new revised network. Up through the years much effort has also been put into data quality control and instrumentation (CTD) mantenance and calibration. From the early 1990s, the BFE faculty (Fakultet for biovitenskap, fiskeri og økonomi) that has had the responsibility for the data sampling organized as Havmiljødata (HMD).
DOI: 10.18710/sixodc/sksn40
title: 01_ReadMeFile.txt
DOI: 10.18710/3pkaty/zoz0me
title: Subj7_sing_PostStre_tapu_2.wav
DOI: 10.18710/9ypsik/j0o0wy
title: TGO_Ramfjordmoen_ionosonde_data_1987-12_PNG.zip
DOI: 10.18710/bydju6
title: Hydrographic data from Northern Norwegian fjords - 1995

description: The periodic collection of hydrophysical data along the northern Norwegian coast (from Malangen to Porsangerfjord) started in the beginning of the 20th century and some of the oldest stations are still in operation by the “Havmiljødata” sampling programme organized by UIT-The Arctic university of Norway. Systematical retrieval of the physical oceanographical data during shorter periods (1–2 years) in Tromsø and north Norway goes back to ca. 1872 when Tromsø Museum was founded. The first decades sampling was performed with hired vessels, and retrieval of hydrophysical data was connected to sampling of marine organisms. From ca. 1975 it was taken over by the University of Tromsø and from 1979 it was up running again with a new revised network. Up through the years much effort has also been put into data quality control and instrumentation (CTD) mantenance and calibration. From the early 1990s, the BFE faculty (Fakultet for biovitenskap, fiskeri og økonomi) that has had the responsibility for the data sampling organized as Havmiljødata (HMD).
DOI: 10.18710/c8fxid/1zxmsd
title: PA11_Z_a_3_DailyGrap.zip
DOI: 10.18710/c8fxid/citfuj
title: PA11_D_b_1_Constable.zip
DOI: 10.18710/c8fxid/hrvunh
title: PA11_F_a_2_KeltieForSverdrup.zip
DOI: 10.18710/c8fxid/hwjcwt
title: PA11_Z_a_8_Westmin.zip
DOI: 10.18710/c8fxid/mxakan
title: PA11_O_a_1_Manuskriptkart.zip
DOI: 10.18710/c8fxid/qyl9f7
title: PA11_F_a_1_KeltieForNansen.zip
DOI: 10.18710/c8fxid/ypxilo
title: PA11_O_b_1_WhenFram.zip
DOI: 10.18710/fd6bvn
title: Hydrographic data from Northern Norwegian fjords - 2000

description: The periodic collection of hydrophysical data along the northern Norwegian coast (from Malangen to Porsangerfjord) started in the beginning of the 20th century and some of the oldest stations are still in operation by the “Havmiljødata” sampling programme organized by UIT-The Arctic university of Norway. Systematical retrieval of the physical oceanographical data during shorter periods (1–2 years) in Tromsø and north Norway goes back to ca. 1872 when Tromsø Museum was founded. The first decades sampling was performed with hired vessels, and retrieval of hydrophysical data was connected to sampling of marine organisms. From ca. 1975 it was taken over by the University of Tromsø and from 1979 it was up running again with a new revised network. Up through the years much effort has also been put into data quality control and instrumentation (CTD) mantenance and calibration. From the early 1990s, the BFE faculty (Fakultet for biovitenskap, fiskeri og økonomi) that has had the responsibility for the data sampling organized as Havmiljødata (HMD).
description: Hydrographic data from Northern Norwegian fjords
DOI: 10.18710/fd6bvn/mck0sq
title: hmd_data_2000.tab
DOI: 10.18710/hcdtvk/zweooc
title: 01_ReadMeFile.txt
DOI: 10.18710/klrtob/03dym2
title: TGO_Ramfjordmoen_ionosonde_data_1985_03_PNG.zip
DOI: 10.18710/lhcgyq/3qaik6
title: molecule8_output.txt

description: 2SM, 3SM results for molecule 8
DOI: 10.18710/lhcgyq/8ogw8d
title: bodipy-tpa-si.pdf

description: Please read README file for description of all the files
DOI: 10.18710/lhcgyq/wqrhgk
title: molecule1_output.txt

description: 2SM, 3SM results for molecule 1
DOI: 10.18710/mteqyp/beodrc
title: Kjeldeoversyn_bokmal.ods

description: See ReadMe file.
DOI: 10.18710/mteqyp/pw8bzd
title: Kjeldeoversyn_nynorsk.txt

description: See ReadMe file.
DOI: 10.18710/ppiveo
title: Hydrographic data from Northern Norwegian fjords - 2010

description: The periodic collection of hydrophysical data along the northern Norwegian coast (from Malangen to Porsangerfjord) started in the beginning of the 20th century and some of the oldest stations are still in operation by the “Havmiljødata” sampling programme organized by UIT-The Arctic university of Norway. Systematical retrieval of the physical oceanographical data during shorter periods (1–2 years) in Tromsø and north Norway goes back to ca. 1872 when Tromsø Museum was founded. The first decades sampling was performed with hired vessels, and retrieval of hydrophysical data was connected to sampling of marine organisms. From ca. 1975 it was taken over by the University of Tromsø and from 1979 it was up running again with a new revised network. Up through the years much effort has also been put into data quality control and instrumentation (CTD) mantenance and calibration. From the early 1990s, the BFE faculty (Fakultet for biovitenskap, fiskeri og økonomi) that has had the responsibility for the data sampling organized as Havmiljødata (HMD).
description: Hydrographic data from Northern Norwegian fjords
DOI: 10.18710/ryfbfs/ozwu1g
title: hmd_stations_1996.tab
DOI: 10.18710/8shsav/jfx1pw
title: TGO_Ramfjordmoen_ionosonde_data_1987-05_PNG.zip
DOI: 10.18710/8shsav/xxadkf
title: 01_ReadMeFile.txt
DOI: 10.18710/dfqsrs
title: Hydrographic data from Northern Norwegian fjords - 2009

description: The periodic collection of hydrophysical data along the northern Norwegian coast (from Malangen to Porsangerfjord) started in the beginning of the 20th century and some of the oldest stations are still in operation by the “Havmiljødata” sampling programme organized by UIT-The Arctic university of Norway. Systematical retrieval of the physical oceanographical data during shorter periods (1–2 years) in Tromsø and north Norway goes back to ca. 1872 when Tromsø Museum was founded. The first decades sampling was performed with hired vessels, and retrieval of hydrophysical data was connected to sampling of marine organisms. From ca. 1975 it was taken over by the University of Tromsø and from 1979 it was up running again with a new revised network. Up through the years much effort has also been put into data quality control and instrumentation (CTD) mantenance and calibration. From the early 1990s, the BFE faculty (Fakultet for biovitenskap, fiskeri og økonomi) that has had the responsibility for the data sampling organized as Havmiljødata (HMD).
DOI: 10.18710/phl6rm/bbrwua
title: TGO_Ramfjordmoen_ionosonde_data_1987-01_PNG.zip
DOI: 10.18710/qyumpz/n71ahj
title: TGO_Ramfjordmoen_ionosonde_data_1988-11_PNG.zip
DOI: 10.18710/sm5da1/wxhy8o
title: TGO_Ramfjordmoen_ionosonde_data_1988-04_PNG.zip
DOI: 10.18710/wdrav5/ejuwnt
title: 01_ReadMeFile.txt
DOI: 10.18710/xohnt7
title: Hydrographic data from Northern Norwegian fjords - 1998

description: The periodic collection of hydrophysical data along the northern Norwegian coast (from Malangen to Porsangerfjord) started in the beginning of the 20th century and some of the oldest stations are still in operation by the “Havmiljødata” sampling programme organized by UIT-The Arctic university of Norway. Systematical retrieval of the physical oceanographical data during shorter periods (1–2 years) in Tromsø and north Norway goes back to ca. 1872 when Tromsø Museum was founded. The first decades sampling was performed with hired vessels, and retrieval of hydrophysical data was connected to sampling of marine organisms. From ca. 1975 it was taken over by the University of Tromsø and from 1979 it was up running again with a new revised network. Up through the years much effort has also been put into data quality control and instrumentation (CTD) mantenance and calibration. From the early 1990s, the BFE faculty (Fakultet for biovitenskap, fiskeri og økonomi) that has had the responsibility for the data sampling organized as Havmiljødata (HMD).
description: Hydrographic data from Northern Norwegian fjords
DOI: 10.18710/1syrpe/rognhj
title: TGO_Ramfjordmoen_ionosonde_data_1992-03_PNG.zip
DOI: 10.18710/3pkaty/04wwfv
title: Subj7_spc_Stre_pehta_1.wav
DOI: 10.18710/3pkaty/53ljcb
title: Subj6_sing_PreStre_potapa_1.wav
DOI: 10.18710/3pkaty/9n6v7j
title: Subj7_spc_Stre_pehta_2.wav
DOI: 10.18710/3pkaty/9xdsze
title: Subj7_spc_PreStre_pitapa_1.wav
DOI: 10.18710/3pkaty/ayv9jf
title: Subj6_sing_PostStre_tapu_1.wav
DOI: 10.18710/3pkaty/c3rot7
title: Subj6_sing_PostStre_tapa_2.wav
DOI: 10.18710/3pkaty/owxrtm
title: Subj7_spc_Stre_pohta_3.wav
DOI: 10.18710/3pkaty/ptwpmu
title: Subj6_sing_PreStre_pitapa_3.wav
DOI: 10.18710/3pkaty/vammhy
title: Subj6_sing_PreStre_patapa_2.wav
DOI: 10.18710/3pkaty/yhzrj5
title: Subj7_spc_PostStre_tapi_2.wav
DOI: 10.18710/56yqmk
title: TGO Ramfjordmoen Ionosonde Data May 1990

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from May 01-31, 1990.&lt;/p&gt;&lt;p&gt;About the Tromsø Ionosonde (1984-1992): During the period 1984-1992 the Ionosonde was situated at 69° 35' N, 19° 13' E at Ramfjordmoen near Tromsø, Norway and operated by the Auroral Observatory of the University of Tromsø. The instrument operated at this location prior to 1984, and still operates there (as of 2018); see the related publication for details. The instrument was fully digitized and based on a Hewlett Packard 21MX computer. The combination of a low power transmitter and complementary code transmission made the Tromsø ionosonde equivalent to a conventional ionosonde (at the time) with 20 µs pulses and 16 kW peak power. Routine operation was one ionogram every 20 min with a frequency sweep from 1 MHz to 12 MHz lasting between 2 and 3 min. For the 100 km altitude region the precision of determining the height of a sporadic E layer is ± 3 km. The ionograms were stored on magnetic tape. A noise discrimination routine in the computer program reduced the stored data to less than 10% of the raw data. In this way one 2400' tape held about 1300 ionograms, equivalent to 18 days' data. The tapes were 4-11 years old when they were read, resulting in around 20% data-loss during the process of transferring to other media. Today, storage is on online disk and with offline an archive on a variety of media.&lt;/p&gt;
description: TGO Ionosonde Data
DOI: 10.18710/72xhai/tmkqhg
title: 01_ReadMeFile.txt
DOI: 10.18710/77snqm/4vrdod
title: 01_ReadMeFile.txt
DOI: 10.18710/8dvvpg/rdzsxh
title: 01_ReadMeFile.txt
DOI: 10.18710/93r0yk/r3iguw
title: TGO_Ramfjordmoen_ionosonde_data_1992-02_PNG.zip
DOI: 10.18710/9ir4ml
title: Hydrographic data from Northern Norwegian fjords - 2005

description: The periodic collection of hydrophysical data along the northern Norwegian coast (from Malangen to Porsangerfjord) started in the beginning of the 20th century and some of the oldest stations are still in operation by the “Havmiljødata” sampling programme organized by UIT-The Arctic university of Norway. Systematical retrieval of the physical oceanographical data during shorter periods (1–2 years) in Tromsø and north Norway goes back to ca. 1872 when Tromsø Museum was founded. The first decades sampling was performed with hired vessels, and retrieval of hydrophysical data was connected to sampling of marine organisms. From ca. 1975 it was taken over by the University of Tromsø and from 1979 it was up running again with a new revised network. Up through the years much effort has also been put into data quality control and instrumentation (CTD) mantenance and calibration. From the early 1990s, the BFE faculty (Fakultet for biovitenskap, fiskeri og økonomi) that has had the responsibility for the data sampling organized as Havmiljødata (HMD).
description: Hydrographic data from Northern Norwegian fjords
DOI: 10.18710/c1klgr/t9nroz
title: TGO_Ramfjordmoen_ionosonde_data_1987-10_PNG.zip
DOI: 10.18710/c8fxid/z44dd8
title: PA11_D_e_3_Freshf.zip
DOI: 10.18710/dpjfkd/sjpkhw
title: 01_ReadMeFile.txt
DOI: 10.18710/dpmrnz/ehdeft
title: 01_ReadMeFile.txt
DOI: 10.18710/dsq4o5
title: TGO Ramfjordmoen Ionosonde Data December 1988

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from December 01-31, 1988.&lt;/p&gt;&lt;p&gt;About the Tromsø Ionosonde (1984-1992): During the period 1984-1992 the Ionosonde was situated at 69° 35' N, 19° 13' E at Ramfjordmoen near Tromsø, Norway and operated by the Auroral Observatory of the University of Tromsø. The instrument operated at this location prior to 1984, and still operates there (as of 2018); see the related publication for details. The instrument was fully digitized and based on a Hewlett Packard 21MX computer. The combination of a low power transmitter and complementary code transmission made the Tromsø ionosonde equivalent to a conventional ionosonde (at the time) with 20 µs pulses and 16 kW peak power. Routine operation was one ionogram every 20 min with a frequency sweep from 1 MHz to 12 MHz lasting between 2 and 3 min. For the 100 km altitude region the precision of determining the height of a sporadic E layer is ± 3 km. The ionograms were stored on magnetic tape. A noise discrimination routine in the computer program reduced the stored data to less than 10% of the raw data. In this way one 2400' tape held about 1300 ionograms, equivalent to 18 days' data. The tapes were 4-11 years old when they were read, resulting in around 20% data-loss during the process of transferring to other media. Today, storage is on online disk and with offline an archive on a variety of media.&lt;/p&gt;
description: TGO Ionosonde Data