The laser radar system for measurement of the middle atmosphere at Syowa Station in Antarctica
Multiwavelength laser radar system was installed at Syowa Station in 1983 by the 24th Japanese Antarctic Research Expedition for measurement of the middle atmospheric phenomena in cooperation with International Middle Atmosphere Program (MAP). The laser radar can simultaneously shoot two kinds of la...
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National Institute of Polar Research
1983
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ftdoajarticles:oai:doaj.org/article:0e45e73351954fe9a7599f84e4e736cd 2023-05-15T13:56:58+02:00 The laser radar system for measurement of the middle atmosphere at Syowa Station in Antarctica Yasunobu Iwasaka Takeo Hirasawa Hiroshi Fukunishi Ryoichi Fujii Hiroshi Miyaoka Syoji Ito Noboru Yasuda Hiroyasu Ohtani 1983-12-01T00:00:00Z https://doi.org/10.15094/00008379 https://doaj.org/article/0e45e73351954fe9a7599f84e4e736cd EN JA eng jpn National Institute of Polar Research https://doi.org/10.15094/00008379 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008379 0085-7289 2432-079X https://doaj.org/article/0e45e73351954fe9a7599f84e4e736cd Antarctic Record, Iss 80, Pp 1-13 (1983) Geography (General) G1-922 article 1983 ftdoajarticles https://doi.org/10.15094/00008379 2022-12-30T21:33:19Z Multiwavelength laser radar system was installed at Syowa Station in 1983 by the 24th Japanese Antarctic Research Expedition for measurement of the middle atmospheric phenomena in cooperation with International Middle Atmosphere Program (MAP). The laser radar can simultaneously shoot two kinds of laser pulses (0.6943μm : the fundamental wave, 0.3471μm : the second harmonic wave) by means of ruby laser with regulated repetition frequencies (maximum : 1Hz) and receive scattered light by a telescope with the 50 cmφ-lens in efficient diameter. The measurement can be done by using a photon counter for each wave and A-scope for the fundamental wave. The test observation had been successfully made in Japan and it showed the remarkable increases of the strato-spheric aerosol due to the volcanic eruption of Mt. El Chichon. It was also inferred that the size distribution of the particles in the aerozol layer is inhomogeneous. Article in Journal/Newspaper Antarc* Antarctic Antarctica Directory of Open Access Journals: DOAJ Articles Antarctic Syowa Station |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
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language |
English Japanese |
topic |
Geography (General) G1-922 |
spellingShingle |
Geography (General) G1-922 Yasunobu Iwasaka Takeo Hirasawa Hiroshi Fukunishi Ryoichi Fujii Hiroshi Miyaoka Syoji Ito Noboru Yasuda Hiroyasu Ohtani The laser radar system for measurement of the middle atmosphere at Syowa Station in Antarctica |
topic_facet |
Geography (General) G1-922 |
description |
Multiwavelength laser radar system was installed at Syowa Station in 1983 by the 24th Japanese Antarctic Research Expedition for measurement of the middle atmospheric phenomena in cooperation with International Middle Atmosphere Program (MAP). The laser radar can simultaneously shoot two kinds of laser pulses (0.6943μm : the fundamental wave, 0.3471μm : the second harmonic wave) by means of ruby laser with regulated repetition frequencies (maximum : 1Hz) and receive scattered light by a telescope with the 50 cmφ-lens in efficient diameter. The measurement can be done by using a photon counter for each wave and A-scope for the fundamental wave. The test observation had been successfully made in Japan and it showed the remarkable increases of the strato-spheric aerosol due to the volcanic eruption of Mt. El Chichon. It was also inferred that the size distribution of the particles in the aerozol layer is inhomogeneous. |
format |
Article in Journal/Newspaper |
author |
Yasunobu Iwasaka Takeo Hirasawa Hiroshi Fukunishi Ryoichi Fujii Hiroshi Miyaoka Syoji Ito Noboru Yasuda Hiroyasu Ohtani |
author_facet |
Yasunobu Iwasaka Takeo Hirasawa Hiroshi Fukunishi Ryoichi Fujii Hiroshi Miyaoka Syoji Ito Noboru Yasuda Hiroyasu Ohtani |
author_sort |
Yasunobu Iwasaka |
title |
The laser radar system for measurement of the middle atmosphere at Syowa Station in Antarctica |
title_short |
The laser radar system for measurement of the middle atmosphere at Syowa Station in Antarctica |
title_full |
The laser radar system for measurement of the middle atmosphere at Syowa Station in Antarctica |
title_fullStr |
The laser radar system for measurement of the middle atmosphere at Syowa Station in Antarctica |
title_full_unstemmed |
The laser radar system for measurement of the middle atmosphere at Syowa Station in Antarctica |
title_sort |
laser radar system for measurement of the middle atmosphere at syowa station in antarctica |
publisher |
National Institute of Polar Research |
publishDate |
1983 |
url |
https://doi.org/10.15094/00008379 https://doaj.org/article/0e45e73351954fe9a7599f84e4e736cd |
geographic |
Antarctic Syowa Station |
geographic_facet |
Antarctic Syowa Station |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Antarctic Record, Iss 80, Pp 1-13 (1983) |
op_relation |
https://doi.org/10.15094/00008379 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008379 0085-7289 2432-079X https://doaj.org/article/0e45e73351954fe9a7599f84e4e736cd |
op_doi |
https://doi.org/10.15094/00008379 |
_version_ |
1766264575776260096 |