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TEMPORAL VARIATIONS OF PASSIVE MICROWAVES FROM THE ICE SHEET
https://doi.org/10.15094/00003954
https://doi.org/10.15094/0000395411e4242e-db5b-48fe-afa0-f7e3e4d0b1c2
名前 / ファイル | ライセンス | アクション |
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KJ00000768015 (59.8 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1996-09-01 | |||||
タイトル | ||||||
タイトル | TEMPORAL VARIATIONS OF PASSIVE MICROWAVES FROM THE ICE SHEET | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00003954 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
記事種別(英) | ||||||
en | ||||||
ABSTRACT | ||||||
論文名よみ | ||||||
その他のタイトル | TEMPORAL VARIATIONS OF PASSIVE MICROWAVES FROM THE ICE SHEET | |||||
著者名よみ |
エノモト, ヒロユキ
× エノモト, ヒロユキ× ワラシナ, ヒデオ |
|||||
著者名(英) |
ENOMOTO, Hiroyuki
× ENOMOTO, Hiroyuki× WARASHINA, Hideo |
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著者所属(英) | ||||||
en | ||||||
Kitami Institute of Technology | ||||||
著者所属(英) | ||||||
en | ||||||
Sendai College of Technology | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | This study investigates seasonal variations and spatial differences in passive microwave signals (DMSP SSM/I) from the ice sheet. The time series of brightness temperature (Tb) at 19 GHz and 37GHz, their gradient ratio (GR : 37 GHz minus 19 GHz) and polarization at each frequency were analyzed. Tb does not reflect simply the air temperature, but it reflects the GR value. The lowest GR is observed in the ridge area of East Antarctica. GR alters its sign with season, that is, it is positive in summer and negative in winter; lower frequency indicates the temperature of the deeper snow layer. However, GR in the ridge area shows negative values throughout the year. Results of the polarization also show distinct seasonal changes between the ridge area and the lower part of the ice sheet. It is concluded that there is high variability of microwave signals along the traverse route between Syowa Station and Dome Fuji Station, which may imply that altitudinal variations of snow characteristics are large in this region. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10756213 | |||||
書誌情報 |
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology 巻 10, p. 169, 発行日 1996-09 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |