cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.18710/3xdfrn
title: TGO Ramfjordmoen Ionosonde Data March 1988

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from March 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
DOI: 10.18710/77snqm
title: TGO Ramfjordmoen Ionosonde Data February 1987

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from February 01-28, 1987.&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: 10.18710/9ypsik
title: TGO Ramfjordmoen Ionosonde Data December 1987

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from December 01-31, 1987.&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/bd6yav
title: TGO Ramfjordmoen Ionosonde Data March 1987

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from March 01-31, 1987.&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/botcez/xmohhz
title: 01_ReadMeFile.txt
DOI: 10.18710/budbmi
title: TGO Ramfjordmoen Ionosonde Data October 1985

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from October 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/dg75yc/icp1wn
title: 02_TallorddatabaseRuTenTen3forCART.csv

description: The dataset itself
DOI: 10.18710/dpjfkd/pm7xru
title: TGO_Ramfjordmoen_ionosonde_data_1986-05_PNG.zip
DOI: 10.18710/e22erl
title: TGO Ramfjordmoen Ionosonde Data July 1986

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from July 01-31, 1986.&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/e3w52q/2p1msn
title: IPMJ_replication.csv

description: Replication data
DOI: 10.18710/ebymvc
title: TGO Ramfjordmoen Ionosonde Data February 1988

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from February 01-29, 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
DOI: 10.18710/edlky5/fy7eoi
title: TGO_Ramfjordmoen_ionosonde_data_1992-01_PNG.zip
DOI: 10.18710/g3e9pt
title: TGO Ramfjordmoen Ionosonde Data December 1985

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from December 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/g6indc/e5qe5v
title: hmd_stations_1994.tab
DOI: 10.18710/h3nzsx/fqmghe
title: hmd_stations_2003.tab
DOI: 10.18710/jxatnc/keq0gc
title: TGO_Ramfjordmoen_ionosonde_data_1988-01_PNG.zip
DOI: 10.18710/kbdjvo/8ctjqr
title: TGO_Ramfjordmoen_ionosonde_data_1990-10_PNG.zip
DOI: 10.18710/kbdjvo/no097k
title: 01_ReadMeFile.txt
DOI: 10.18710/m0je3z
title: TGO Ramfjordmoen Ionosonde Data July 1992

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from July 01-31, 1992.&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/mteqyp/snly23
title: Nynorskmateriale_m+n.ods

description: See ReadMe file.
DOI: 10.18710/n8ko4o/0nd2hi
title: triad 04.jpg
DOI: 10.18710/n8ko4o/ppnsih
title: triad 01.jpg
DOI: 10.18710/namhwf
title: TGO Ramfjordmoen Ionosonde Data August 1993

description: &lt;p&gt;About this dataset: This dataset contains ionosonde data in SAO format, and covers data from August 01-31, 1993.&lt;/p&gt;&lt;p&gt;About the Tromsø Ionosonde (1993-present): Since 1980, 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 and later on, in collaboration with QinetiQ. The Lowell ionosonde replaced the Auroral Observatory unit in 1992; see the related publication for details.&lt;/p&gt;
description: TGO Ionosonde Data
DOI: 10.18710/nmdpcl
title: TGO Ramfjordmoen Ionosonde Data March 1990

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from March 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/op6ayu/sr8rmo
title: 01_ReadMeFile.txt
DOI: 10.18710/op6ayu/zrbjk2
title: TGO_Ramfjordmoen_ionosonde_data_1991-02_PNG.zip
DOI: 10.18710/qulobc/de7qzm
title: Results_schwa_Tromso.tab

description: Schwa occurrences and coding of these, extracted from the Tromsø corpus, original file
DOI: 10.18710/s09hze/a1msuk
title: TGO_Ramfjordmoen_ionosonde_data_1989-03_PNG.zip
DOI: 10.18710/sste5h/lof1px
title: Primefish_Cod_Data.tab
DOI: 10.18710/ula1vl/fofrhq
title: TGO_Ramfjordmoen_ionosonde_data_1988-05_PNG.zip
DOI: 10.18710/uorjhr/zybgx4
title: TGO_Ramfjordmoen_ionosonde_data_1989-06_PNG.zip
DOI: 10.18710/wam9pi/79kl97
title: 01_ReadMeFile.txt
DOI: 10.18710/zlkxgh/ze8qly
title: 01_ReadMeFile.txt
DOI: 10.18710/zonquz/w3bazr
title: 01_ReadMeFile.txt
DOI: 10.18710/4wpbzq/lypvuz
title: 01_ReadMeFile.txt
DOI: 10.18710/kbdjvo
title: TGO Ramfjordmoen Ionosonde Data October 1990

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from October 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/kvjuwn
title: TGO Ramfjordmoen Ionosonde Data November 1987

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from November 01-30, 1987.&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/m2iwuu/omeqir
title: hmd_stations_1992.tab
DOI: 10.18710/nnzx42/wblomg
title: 01_ReadMeFile.txt
DOI: 10.18710/op6ayu
title: TGO Ramfjordmoen Ionosonde Data February 1991

description: &lt;p&gt;About this dataset: This dataset contains ionograms in PNG format and covers data from February 01-28, 1991.&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/puxwxl/wjjsy3
title: 03_asp.csv

description: OCS main dataset. See 00_readme.txt for further details
DOI: 10.18710/qblip8/gg8e5v
title: 01_ReadMeFile.txt
DOI: 10.18710/qxqcui/jb1lea
title: CAGE13_1_HH_Vestnesa_05.segy

description: Seismic profile in SEGY standard
DOI: 10.18710/vywbad/6otkaj
title: PA_polygons.shx