Spectral extinction measurement by sunphotometer at Syowa Station, Antarctica
P(論文) Spectral measurement of direct solar radiation was made by sunphotometer (λ=368,500,675,778,862nm) at Syowa Station (69°00′S, 39°35′E, 21m a.s.l.), Antarctica in the period January 1980 through January 1981. Average aerosol optical thickness (λ=500nm) was 0.023±0.010 and its maximum appeared i...
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ftnipr:oai:nipr.repo.nii.ac.jp:00001502 2024-09-09T19:10:20+00:00 Spectral extinction measurement by sunphotometer at Syowa Station, Antarctica Matsubara, Kouji Kawaguchi, Sadao 1983-11 application/pdf https://nipr.repo.nii.ac.jp/record/1502/files/KJ00000012135.pdf eng eng Memoirs of National Institute of Polar Research. Special issue 29 85 93 AA00733561 https://nipr.repo.nii.ac.jp/record/1502/files/KJ00000012135.pdf 1983 ftnipr 2024-06-17T04:00:49Z P(論文) Spectral measurement of direct solar radiation was made by sunphotometer (λ=368,500,675,778,862nm) at Syowa Station (69°00′S, 39°35′E, 21m a.s.l.), Antarctica in the period January 1980 through January 1981. Average aerosol optical thickness (λ=500nm) was 0.023±0.010 and its maximum appeared in October, minimum in November. Monthly mean Angstrom turbidity coefficient β lies in the range from 0.0045 to 0.0207 and α from 1.27 to 2.15. The present result was in good accordance with the recent measurement of optical thickness in Antarctica made by other reseachers. The most important finding is that turbidity at Syowa Station was fairly constant throughout a year, spectral extinction exhibit marked seasonal variation. It can be also found that the seasonal variation of spectral extinction is caused by the seasonal change of aerosol which has resulted from the seasonal difference of the origin of air mass. departmental bulletin paper Other/Unknown Material Antarc* Antarctica Memoirs of National Institute of Polar Research Polar Research National Institute of Polar Research Repository, Japan Syowa Station |
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Open Polar |
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National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
P(論文) Spectral measurement of direct solar radiation was made by sunphotometer (λ=368,500,675,778,862nm) at Syowa Station (69°00′S, 39°35′E, 21m a.s.l.), Antarctica in the period January 1980 through January 1981. Average aerosol optical thickness (λ=500nm) was 0.023±0.010 and its maximum appeared in October, minimum in November. Monthly mean Angstrom turbidity coefficient β lies in the range from 0.0045 to 0.0207 and α from 1.27 to 2.15. The present result was in good accordance with the recent measurement of optical thickness in Antarctica made by other reseachers. The most important finding is that turbidity at Syowa Station was fairly constant throughout a year, spectral extinction exhibit marked seasonal variation. It can be also found that the seasonal variation of spectral extinction is caused by the seasonal change of aerosol which has resulted from the seasonal difference of the origin of air mass. departmental bulletin paper |
author |
Matsubara, Kouji Kawaguchi, Sadao |
spellingShingle |
Matsubara, Kouji Kawaguchi, Sadao Spectral extinction measurement by sunphotometer at Syowa Station, Antarctica |
author_facet |
Matsubara, Kouji Kawaguchi, Sadao |
author_sort |
Matsubara, Kouji |
title |
Spectral extinction measurement by sunphotometer at Syowa Station, Antarctica |
title_short |
Spectral extinction measurement by sunphotometer at Syowa Station, Antarctica |
title_full |
Spectral extinction measurement by sunphotometer at Syowa Station, Antarctica |
title_fullStr |
Spectral extinction measurement by sunphotometer at Syowa Station, Antarctica |
title_full_unstemmed |
Spectral extinction measurement by sunphotometer at Syowa Station, Antarctica |
title_sort |
spectral extinction measurement by sunphotometer at syowa station, antarctica |
publishDate |
1983 |
url |
https://nipr.repo.nii.ac.jp/record/1502/files/KJ00000012135.pdf |
geographic |
Syowa Station |
geographic_facet |
Syowa Station |
genre |
Antarc* Antarctica Memoirs of National Institute of Polar Research Polar Research |
genre_facet |
Antarc* Antarctica Memoirs of National Institute of Polar Research Polar Research |
op_relation |
Memoirs of National Institute of Polar Research. Special issue 29 85 93 AA00733561 https://nipr.repo.nii.ac.jp/record/1502/files/KJ00000012135.pdf |
_version_ |
1809825196202262528 |