HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
低温科学研究所  >
雑誌発表論文等  >

Relation of measured basal temperatures and the spatial distribution of the geothermal heat flux for the Greenland ice sheet

フルテキスト
Greve_2005_AnnGlac.pdf794.63 kBPDF見る/開く
この文献へのリンクには次のURLを使用してください:http://hdl.handle.net/2115/34545

タイトル: Relation of measured basal temperatures and the spatial distribution of the geothermal heat flux for the Greenland ice sheet
著者: Greve, Ralf 著作を一覧する
キーワード: Greenland
Ice sheet
Modelling
Basal temperature
Geothermal heat flux
発行日: 2005年 8月
出版者: International Glaciological Society
誌名: Annals of Glaciology
巻: 42
開始ページ: 424
終了ページ: 432
出版社 DOI: 10.3189/172756405781812510
抄録: The thermomechanical, three-dimensional ice-sheet model SICOPOLIS is applied to the Greenland ice sheet. Simulations over two glacial–interglacial cycles are carried out, driven by a climatic forcing interpolated between present conditions and Last Glacial Maximum anomalies. Based on the global heat-flow representation by Pollack and others (1993), we attempt to constrain the spatial pattern of the geothermal heat flux by comparing simulation results to direct measurements of basal temperatures at the GRIP, NorthGRIP, Camp Century and Dye 3 ice-core locations. The obtained heatflux map shows an increasing trend from west to east, a high-heat-flux anomaly around NorthGRIP with values up to 135mWm–2 and a low-heat-flux anomaly around Dye 3 with values down to 20mWm–2. Validation is provided by the generally good fit between observed and measured ice thicknesses. Residual discrepancies are most likely due to deficiencies of the input precipitation rate and further variability of the geothermal heat flux not captured here.
Rights: © 2005 International Glaciological Society
Relation (URI): http://www.igsoc.org/
資料タイプ: article
URI: http://hdl.handle.net/2115/34545
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: Greve Ralf

 

本サイトに関するご意見・お問い合わせは repo at lib.hokudai.ac.jp へお願いします。 - 北海道大学