Cloud distribution in the Antarctic from satellite data
Analyses of cloud distribution in the Antarctic using satellite data were reported. Data of three NOAA AVHRR channels, channels 3 (3.7μm), 4 (10.8μm) and 5 (12.0μm), received at Syowa Station, were used for the analyses. Brightness temperature differences of those channels were shown to be effective...
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National Institute of Polar Research
1997
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ftdoajarticles:oai:doaj.org/article:6eb15de88957493cbda1628db1a271e3 2023-05-15T13:31:06+02:00 Cloud distribution in the Antarctic from satellite data Takashi Yamanouchi 1997-03-01T00:00:00Z https://doi.org/10.15094/00008959 https://doaj.org/article/6eb15de88957493cbda1628db1a271e3 EN JA eng jpn National Institute of Polar Research http://doi.org/10.15094/00008959 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008959 0085-7289 2432-079X https://doaj.org/article/6eb15de88957493cbda1628db1a271e3 Antarctic Record, Vol 41, Iss 1, Pp 23-40 (1997) Geography (General) G1-922 article 1997 ftdoajarticles https://doi.org/10.15094/00008959 2022-12-31T12:18:41Z Analyses of cloud distribution in the Antarctic using satellite data were reported. Data of three NOAA AVHRR channels, channels 3 (3.7μm), 4 (10.8μm) and 5 (12.0μm), received at Syowa Station, were used for the analyses. Brightness temperature differences of those channels were shown to be effective to detect clouds, and cloud amounts thus detected were derived for the area around Syowa Station. A large difference was found between the cloud amount over the continental ice sheet and that over the ocean. Compared to the cloud amounts determined from the surface measurements, cloud amounts from the temperature difference between channels 3 and 4 in summer showed good agreement; however, cloud amounts from channel 4 and 5 in summer and winter showed only vague agreement. Aided from the correlation coefficient between the brightness temperature difference between channels 4 and 5,and the brightness temperature of channel 4,cloud distributions over East Antarctica throughout the year were derived, and distribution characteristics were discussed. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic East Antarctica Syowa Station |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Japanese |
topic |
Geography (General) G1-922 |
spellingShingle |
Geography (General) G1-922 Takashi Yamanouchi Cloud distribution in the Antarctic from satellite data |
topic_facet |
Geography (General) G1-922 |
description |
Analyses of cloud distribution in the Antarctic using satellite data were reported. Data of three NOAA AVHRR channels, channels 3 (3.7μm), 4 (10.8μm) and 5 (12.0μm), received at Syowa Station, were used for the analyses. Brightness temperature differences of those channels were shown to be effective to detect clouds, and cloud amounts thus detected were derived for the area around Syowa Station. A large difference was found between the cloud amount over the continental ice sheet and that over the ocean. Compared to the cloud amounts determined from the surface measurements, cloud amounts from the temperature difference between channels 3 and 4 in summer showed good agreement; however, cloud amounts from channel 4 and 5 in summer and winter showed only vague agreement. Aided from the correlation coefficient between the brightness temperature difference between channels 4 and 5,and the brightness temperature of channel 4,cloud distributions over East Antarctica throughout the year were derived, and distribution characteristics were discussed. |
format |
Article in Journal/Newspaper |
author |
Takashi Yamanouchi |
author_facet |
Takashi Yamanouchi |
author_sort |
Takashi Yamanouchi |
title |
Cloud distribution in the Antarctic from satellite data |
title_short |
Cloud distribution in the Antarctic from satellite data |
title_full |
Cloud distribution in the Antarctic from satellite data |
title_fullStr |
Cloud distribution in the Antarctic from satellite data |
title_full_unstemmed |
Cloud distribution in the Antarctic from satellite data |
title_sort |
cloud distribution in the antarctic from satellite data |
publisher |
National Institute of Polar Research |
publishDate |
1997 |
url |
https://doi.org/10.15094/00008959 https://doaj.org/article/6eb15de88957493cbda1628db1a271e3 |
geographic |
Antarctic The Antarctic East Antarctica Syowa Station |
geographic_facet |
Antarctic The Antarctic East Antarctica Syowa Station |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet |
op_source |
Antarctic Record, Vol 41, Iss 1, Pp 23-40 (1997) |
op_relation |
http://doi.org/10.15094/00008959 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008959 0085-7289 2432-079X https://doaj.org/article/6eb15de88957493cbda1628db1a271e3 |
op_doi |
https://doi.org/10.15094/00008959 |
_version_ |
1766015986697240576 |