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Spatiotemporal variation of ice sheet melting in the Antarctic coastal marginal zone and the influence of ice lenses and rain using satellite microwave observation
https://nipr.repo.nii.ac.jp/records/16071
https://nipr.repo.nii.ac.jp/records/1607147cf051b-9030-4471-9b16-efd76d12d40b
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2020-10-08 | |||||
タイトル | ||||||
タイトル | Spatiotemporal variation of ice sheet melting in the Antarctic coastal marginal zone and the influence of ice lenses and rain using satellite microwave observation | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Spatiotemporal variation of ice sheet melting in the Antarctic coastal marginal zone and the influence of ice lenses and rain using satellite microwave observation | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Antarctica | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Ice sheet | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Melting | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Rain on snow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Microwave observation | |||||
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 | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Alimasi, Nuerasimuguli
× Alimasi, Nuerasimuguli× Enomoto, Hiroyuki× Hirasawa, Naohiko |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | This study uses satellite microwave observations to examine the spatiotemporal variations of melting ice sheets on the slopes of Antarctica. These observations were focused on the coastal marginal zone and inland traverse route near Syowa Station. Melting was detected using a 36 GHz vertical polarization diurnal amplitude variation (DAV). Data from the Advanced Microwave Scanning Radiometer for EOS (AMSR-E) and AMSR2 during 2002–2011 and 2012–2017, respectively, showed DAV variations over time. It was estimated that the greatest melting extent occurred during the 2003/2004 summer; the DAV rose even in the inland areas. In contrast, DAV decreased during rain periods, which was reported by the Japanese Antarctic Research Expedition in 2004 and 2012. This is due to the rise in nighttime brightness temperature (TB). whereas the signal from rain was limited to the lower area. Coastal zones showed a low TB. The low coastal emissions may be attributed to the refrozen ice lenses under the coastal snow layers. The DAV can be significant as the contrast between daytime and nighttime increases from this low TB zone. | |||||
書誌情報 |
en : Polar Science 巻 25, p. 100561, 発行日 2020-09 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18739652 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.polar.2020.100561 | |||||
関連名称 | 10.1016/j.polar.2020.100561 |