Preliminary Study on the Structure of the Atmospheric Surface Layer in Mizuho Plateau, East Antarctica (Special Issue of the Proceedings of the First Symposium on Antarctic Meteorology and Glaciology)
A preliminary study on the structure of the atmospherlc surface layer in Mlzuho Plateau, East Antarctica was made based on the profiles and fluctuations of wind and air temperature observed at Mizuho Station during the period from June to December 1972 The results are summarized as follows : 1) High...
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National Institute of Polar Research
1979
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fttriple:oai:gotriple.eu:oai:doaj.org/article:d2a8024aeaac4b1c85f7315487d0af50 2023-05-15T13:46:30+02:00 Preliminary Study on the Structure of the Atmospheric Surface Layer in Mizuho Plateau, East Antarctica (Special Issue of the Proceedings of the First Symposium on Antarctic Meteorology and Glaciology) Hiroshi SASAKI 1979-10-01 https://doi.org/10.15094/00008097 https://doaj.org/article/d2a8024aeaac4b1c85f7315487d0af50 en other eng National Institute of Polar Research doi:10.15094/00008097 0085-7289 2432-079X https://doaj.org/article/d2a8024aeaac4b1c85f7315487d0af50 undefined Antarctic Record, Iss 67, Pp 86-100 (1979) geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 1979 fttriple https://doi.org/10.15094/00008097 2023-01-22T17:51:07Z A preliminary study on the structure of the atmospherlc surface layer in Mlzuho Plateau, East Antarctica was made based on the profiles and fluctuations of wind and air temperature observed at Mizuho Station during the period from June to December 1972 The results are summarized as follows : 1) High frequency of slightly stable conditions and low frequency of unstable conditions were a characteristic feature of stability in the atmospheric surface layer in Mizuho Plateau during the period described above 2) Mean value of roughness length was 0.24 cm and larger by one order than the values at Syowa Station and the South Pole. This may be explained by the presence of high sastrugi produced by erosion of katabatic winds in Mizuho Plateau The profiles of wind speed near the snow surface followed the "log+lmear" law for Richardson numbers less than about 0.1 3)The distributions of the power soectra of wind and temperature fluctuations and those of the cospectra of heat flux were similar to the results reported by many investigators. The cospectral analysis for momentum shows that the momentum with positive sign is transferred within some frequency ranges. It appears that the probability density distributions of the vertical velocity fluctuations in katabatic winds are skew to the region smaller than the mean values 4) Temperature oscillations which seem to be caused by internal wave motions were observed in winter. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica South pole South pole Unknown Antarctic East Antarctica Mizuho ENVELOPE(44.317,44.317,-70.683,-70.683) Mizuho Plateau ENVELOPE(40.000,40.000,-73.000,-73.000) Mizuho Station ENVELOPE(44.317,44.317,-70.683,-70.683) Sastrugi ENVELOPE(163.683,163.683,-74.617,-74.617) South Pole Syowa Station |
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Open Polar |
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English |
topic |
geo |
spellingShingle |
geo Hiroshi SASAKI Preliminary Study on the Structure of the Atmospheric Surface Layer in Mizuho Plateau, East Antarctica (Special Issue of the Proceedings of the First Symposium on Antarctic Meteorology and Glaciology) |
topic_facet |
geo |
description |
A preliminary study on the structure of the atmospherlc surface layer in Mlzuho Plateau, East Antarctica was made based on the profiles and fluctuations of wind and air temperature observed at Mizuho Station during the period from June to December 1972 The results are summarized as follows : 1) High frequency of slightly stable conditions and low frequency of unstable conditions were a characteristic feature of stability in the atmospheric surface layer in Mizuho Plateau during the period described above 2) Mean value of roughness length was 0.24 cm and larger by one order than the values at Syowa Station and the South Pole. This may be explained by the presence of high sastrugi produced by erosion of katabatic winds in Mizuho Plateau The profiles of wind speed near the snow surface followed the "log+lmear" law for Richardson numbers less than about 0.1 3)The distributions of the power soectra of wind and temperature fluctuations and those of the cospectra of heat flux were similar to the results reported by many investigators. The cospectral analysis for momentum shows that the momentum with positive sign is transferred within some frequency ranges. It appears that the probability density distributions of the vertical velocity fluctuations in katabatic winds are skew to the region smaller than the mean values 4) Temperature oscillations which seem to be caused by internal wave motions were observed in winter. |
format |
Article in Journal/Newspaper |
author |
Hiroshi SASAKI |
author_facet |
Hiroshi SASAKI |
author_sort |
Hiroshi SASAKI |
title |
Preliminary Study on the Structure of the Atmospheric Surface Layer in Mizuho Plateau, East Antarctica (Special Issue of the Proceedings of the First Symposium on Antarctic Meteorology and Glaciology) |
title_short |
Preliminary Study on the Structure of the Atmospheric Surface Layer in Mizuho Plateau, East Antarctica (Special Issue of the Proceedings of the First Symposium on Antarctic Meteorology and Glaciology) |
title_full |
Preliminary Study on the Structure of the Atmospheric Surface Layer in Mizuho Plateau, East Antarctica (Special Issue of the Proceedings of the First Symposium on Antarctic Meteorology and Glaciology) |
title_fullStr |
Preliminary Study on the Structure of the Atmospheric Surface Layer in Mizuho Plateau, East Antarctica (Special Issue of the Proceedings of the First Symposium on Antarctic Meteorology and Glaciology) |
title_full_unstemmed |
Preliminary Study on the Structure of the Atmospheric Surface Layer in Mizuho Plateau, East Antarctica (Special Issue of the Proceedings of the First Symposium on Antarctic Meteorology and Glaciology) |
title_sort |
preliminary study on the structure of the atmospheric surface layer in mizuho plateau, east antarctica (special issue of the proceedings of the first symposium on antarctic meteorology and glaciology) |
publisher |
National Institute of Polar Research |
publishDate |
1979 |
url |
https://doi.org/10.15094/00008097 https://doaj.org/article/d2a8024aeaac4b1c85f7315487d0af50 |
long_lat |
ENVELOPE(44.317,44.317,-70.683,-70.683) ENVELOPE(40.000,40.000,-73.000,-73.000) ENVELOPE(44.317,44.317,-70.683,-70.683) ENVELOPE(163.683,163.683,-74.617,-74.617) |
geographic |
Antarctic East Antarctica Mizuho Mizuho Plateau Mizuho Station Sastrugi South Pole Syowa Station |
geographic_facet |
Antarctic East Antarctica Mizuho Mizuho Plateau Mizuho Station Sastrugi South Pole Syowa Station |
genre |
Antarc* Antarctic Antarctica East Antarctica South pole South pole |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica South pole South pole |
op_source |
Antarctic Record, Iss 67, Pp 86-100 (1979) |
op_relation |
doi:10.15094/00008097 0085-7289 2432-079X https://doaj.org/article/d2a8024aeaac4b1c85f7315487d0af50 |
op_rights |
undefined |
op_doi |
https://doi.org/10.15094/00008097 |
_version_ |
1766243358719606784 |