Preliminary Experiment on Lower Ionospheric Observation with a Low-Frequency Pulse Sounder
In order to obtain basic data on the lower ionosphere in the Antarctic region, the usual ionosonde was remodeled into a portable type of low-frequency pulse sounder equipped with all solid state circuits except the final stages, which was suitable to field experiment. Three experiments were carried...
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National Institute of Polar Research
1974
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fttriple:oai:gotriple.eu:oai:doaj.org/article:d959f10f1c234bb28178810db93008be 2023-05-15T13:59:36+02:00 Preliminary Experiment on Lower Ionospheric Observation with a Low-Frequency Pulse Sounder Shigeru MIYAZAKI 1974-03-01 https://doi.org/10.15094/00007747 https://doaj.org/article/d959f10f1c234bb28178810db93008be en other eng National Institute of Polar Research doi:10.15094/00007747 0085-7289 2432-079X https://doaj.org/article/d959f10f1c234bb28178810db93008be undefined Antarctic Record, Iss 49, Pp 17-31 (1974) geo info Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 1974 fttriple https://doi.org/10.15094/00007747 2023-01-22T17:50:19Z In order to obtain basic data on the lower ionosphere in the Antarctic region, the usual ionosonde was remodeled into a portable type of low-frequency pulse sounder equipped with all solid state circuits except the final stages, which was suitable to field experiment. Three experiments were carried out. The first experiment was carried out at point F16 in the Antarctic Continent about 20km apart from Syowa Station by using a couple of doublet antennas on the snow surface and the total length of each antenna was 475 m. The second experiment was carried out at Skjegget Peak, Skarvs Nes about 50 km apart from Syowa Station by using a couple of 360 m high vertical delta antennas terminated by 600 ohms and the length of each element was 500 m. The third experiment was carried out at point F18 near F16 in the Antarctic Continent by using a couple of doublet antennas on the snow surface and the total lengths of the antennas were 1600m and 1000m. In the experiments reflected echoes from the lower ionosphere were observed clearly, and time variations of the lower ionosphere in quiet and disturbed conditions were also observed with a comparatively low power (less than 1 Kw) by using a couple of doublet antennas which lay on the snow surface. Article in Journal/Newspaper Antarc* Antarctic Unknown Antarctic Nes ENVELOPE(7.634,7.634,62.795,62.795) Nes’ ENVELOPE(44.681,44.681,66.600,66.600) Skjegget ENVELOPE(39.583,39.583,-69.433,-69.433) Skjegget Peak ENVELOPE(39.617,39.617,-69.433,-69.433) Syowa Station The Antarctic |
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English |
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geo info Shigeru MIYAZAKI Preliminary Experiment on Lower Ionospheric Observation with a Low-Frequency Pulse Sounder |
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geo info |
description |
In order to obtain basic data on the lower ionosphere in the Antarctic region, the usual ionosonde was remodeled into a portable type of low-frequency pulse sounder equipped with all solid state circuits except the final stages, which was suitable to field experiment. Three experiments were carried out. The first experiment was carried out at point F16 in the Antarctic Continent about 20km apart from Syowa Station by using a couple of doublet antennas on the snow surface and the total length of each antenna was 475 m. The second experiment was carried out at Skjegget Peak, Skarvs Nes about 50 km apart from Syowa Station by using a couple of 360 m high vertical delta antennas terminated by 600 ohms and the length of each element was 500 m. The third experiment was carried out at point F18 near F16 in the Antarctic Continent by using a couple of doublet antennas on the snow surface and the total lengths of the antennas were 1600m and 1000m. In the experiments reflected echoes from the lower ionosphere were observed clearly, and time variations of the lower ionosphere in quiet and disturbed conditions were also observed with a comparatively low power (less than 1 Kw) by using a couple of doublet antennas which lay on the snow surface. |
format |
Article in Journal/Newspaper |
author |
Shigeru MIYAZAKI |
author_facet |
Shigeru MIYAZAKI |
author_sort |
Shigeru MIYAZAKI |
title |
Preliminary Experiment on Lower Ionospheric Observation with a Low-Frequency Pulse Sounder |
title_short |
Preliminary Experiment on Lower Ionospheric Observation with a Low-Frequency Pulse Sounder |
title_full |
Preliminary Experiment on Lower Ionospheric Observation with a Low-Frequency Pulse Sounder |
title_fullStr |
Preliminary Experiment on Lower Ionospheric Observation with a Low-Frequency Pulse Sounder |
title_full_unstemmed |
Preliminary Experiment on Lower Ionospheric Observation with a Low-Frequency Pulse Sounder |
title_sort |
preliminary experiment on lower ionospheric observation with a low-frequency pulse sounder |
publisher |
National Institute of Polar Research |
publishDate |
1974 |
url |
https://doi.org/10.15094/00007747 https://doaj.org/article/d959f10f1c234bb28178810db93008be |
long_lat |
ENVELOPE(7.634,7.634,62.795,62.795) ENVELOPE(44.681,44.681,66.600,66.600) ENVELOPE(39.583,39.583,-69.433,-69.433) ENVELOPE(39.617,39.617,-69.433,-69.433) |
geographic |
Antarctic Nes Nes’ Skjegget Skjegget Peak Syowa Station The Antarctic |
geographic_facet |
Antarctic Nes Nes’ Skjegget Skjegget Peak Syowa Station The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Antarctic Record, Iss 49, Pp 17-31 (1974) |
op_relation |
doi:10.15094/00007747 0085-7289 2432-079X https://doaj.org/article/d959f10f1c234bb28178810db93008be |
op_rights |
undefined |
op_doi |
https://doi.org/10.15094/00007747 |
_version_ |
1766268210445811712 |