Comparison of ground temperature and permafrost conditions in the Arctic simulated by land surface process models of different complexity（複雑さの異なる陸面過程モデルによる北極域の地温と永久凍土状況の比較）
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- Junko MORI（森淳子）
- Meteorological Research Institute for Technology Co. Ltd.
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- Kazuyuki SAITO（斉藤和之）
- JAMSTEC
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- Shin MIYAZAKI（宮崎真）
- Sonic Corp.
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- Hirokazu MACHIYA（町屋広和）
- JAMSTEC
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- Takeshi ISE（伊勢武史）
- Kyoto University
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- Tetsuo SUEYOSHI（末吉哲雄）
- JAMSTEC
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- Takeshi YAMAZAKI（山崎剛）
- Tohoku University
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- Yoshihiro IIJIMA（飯島慈裕）
- Tokyo Metropolitan University
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- Hiroki IKAWA（伊川浩樹）
- Hokkaido Agricultural Research Center
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- Ryouta O’OISHI（大石龍太）
- University of Tokyo
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- Takeshi OHTA（太田岳史）
- Nagoya University
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- Genki KATATA（堅田元喜）
- The Canon Institute for Global Studies
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- Ayumi KOTANI（小谷亜由美）
- Nagoya University
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- Atsushi SATO（佐藤篤司）
- Meteorological Research Institute for Technology Co. Ltd.
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- Hisashi SATO（佐藤永）
- JAMSTEC
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- Atsuko SUGIMOTO（杉本敦子）
- Hokkaido University
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- Rikie SUZUKI（鈴木力英）
- JAMSTEC
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- Katsunori TANAKA（田中克典）
- GRID Inc.
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- Tomoko NITTA（新田友子）
- University of Tokyo
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- Tomohiro HAJIMA（羽島知洋）
- JAMSTEC
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- Eleanor BURKE
- Met Office
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- Hotaek PARK（朴昊澤）
- JAMSTEC
書誌事項
- タイトル別名
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- Comparison of ground temperature and permafrost conditions in the Arctic simulated by land surface process models of different complexity
- 公開日
- 2024
- 資源種別
- journal article
- DOI
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- 10.5331/bgr.23a02
- 公開者
- 公益社団法人 日本雪氷学会
この論文をさがす
説明
<p>Permafrost and ground freezing/thawing processes are physically and eco-climatologically important factors in the terrestrial cryosphere. The model reproducibility of frozen ground affects the certainty and reliability of simulated eco-climate conditions in cold regions as well as on a global scale. This study evaluated the variations and their attributes in the model performance developed and employed in the recent decade regarding the subsurface thermal state using outputs from Japanese and international model intercomparison projects and reanalysis data. The simulated surface and subsurface physical states were compared at four Arctic sites under different frozen ground conditions (Fairbanks, Kevo, Tiksi, and Yakutsk). The results showed that despite large variations in the modeled permafrost temperature, all the models, including the reanalysis data, successfully reproduced the permafrost conditions for the continuous permafrost sites. In contrast, some models failed to reproduce the presence of permafrost for the sites in the discontinuous to isolated permafrost zones. Evaluations of near-surface ground temperature variability revealed that the overall wellness of the simulated ground thermal states relied on winter reproducibility. The importance of snowpack metamorphosis for adequate thermal insulation was confirmed and demonstrated. The results at the coastal tundra site imply the importance of snow cover redistribution and wind crust formation owing to strong winds, the lack of which resulted in overestimations of thermal insulation and overcooled near-surface ground by most models.</p>
収録刊行物
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- 氷河情報センター
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氷河情報センター 42 (0), 69-94, 2024
公益社団法人 日本雪氷学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390302624525077504
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- ISSN
- 18848044
- 13453807
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- JaLC
- Crossref
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可