書誌事項
- タイトル別名
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- Sea ice variation in Luetzow-Holmbukta, Antarctica, during the last fifty years
- カコ 50ネンカン ニ ワタル ナンキョク リュツォ ホルムワン テイチャクヒョウ ノ ヘンドウ
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説明
Satellite images obtained from Lützow-Holmbukta (Lützow-Holm Bay; around 69°S, 38°E), Antarctic, have revealed frequent occurrences of ice-breakup events since the 1980s. Such unstable conditions continued for several to ten-odd years, and its variability coincides well with the characteristics of snow accumulation patterns on sea ice; in other words, breakups are often observed during periods of less snow. In contrast, during the 1950s-70s, landfast ice seems to have been extremely stable, judging from the appearance of a long glacier tongue flowing into the fast-ice field. Expansion and contraction of the floating ice tongue probably depends on its surrounding fast-ice condition; therefore the unstable sea-ice condition for the last two decades has shortened the ice tongue. A decrease in the snow cover on sea ice and warm periods of summer-autumn led to the weakening of the landfast ice as the melt season progressed; broken floes were then transported offshore by the prevailing southerly winds.
収録刊行物
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- 雪氷
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雪氷 68 (4), 299-305, 2006
公益社団法人 日本雪氷学会
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詳細情報 詳細情報について
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- CRID
- 1390282681438995328
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- NII論文ID
- 10018013700
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- NII書誌ID
- AN00131221
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- ISSN
- 18836267
- 03731006
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- NDL書誌ID
- 8043645
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可