globalchange  > 影响、适应和脆弱性
DOI: 10.5194/tc-10-2361-2016
Scopus记录号: 2-s2.0-84991615376
论文题名:
A daily, 1 km resolution data set of downscaled Greenland ice sheet surface mass balance (1958-2015)
作者: Noël B; , Jan Van De Berg W; , MacHguth H; , Lhermitte S; , Howat I; , Fettweis X; , Van Den Broeke M; R
刊名: Cryosphere
ISSN: 19940416
出版年: 2016
卷: 10, 期:5
起始页码: 2361
结束页码: 2377
语种: 英语
英文关键词: ablation ; albedo ; climate modeling ; data set ; digital elevation model ; downscaling ; fjord ; glacier mass balance ; ice cap ; image resolution ; polar region ; snow accumulation ; valley glacier ; Arctic ; Greenland ; Greenland Ice Sheet
英文摘要: This study presents a data set of daily, 1 km resolution Greenland ice sheet (GrIS) surface mass balance (SMB) covering the period 1958-2015. Applying corrections for elevation, bare ice albedo and accumulation bias, the high-resolution product is statistically downscaled from the native daily output of the polar regional climate model RACMO2.3 at 11 km. The data set includes all individual SMB components projected to a down-sampled version of the Greenland Ice Mapping Project (GIMP) digital elevation model and ice mask. The 1 km mask better resolves narrow ablation zones, valley glaciers, fjords and disconnected ice caps. Relative to the 11 km product, the more detailed representation of isolated glaciated areas leads to increased precipitation over the southeastern GrIS. In addition, the downscaled product shows a significant increase in runoff owing to better resolved low-lying marginal glaciated regions. The combined corrections for elevation and bare ice albedo markedly improve model agreement with a newly compiled data set of ablation measurements. © 2016 Author(s).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75063
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Utrecht, Netherlands; Department of Geography, University of Zurich, Zurich, Switzerland; Department of Geosciences, University of Fribourg, Fribourg, Switzerland; Geological Survey of Denmark, Greenland GEUS, Copenhagen, Denmark; Department of Geoscience and Remote Sensing, Delft University of Technology, Delft, Netherlands; Byrd Polar Research Center, School of Earth Sciences, Ohio State University, Columbus, United States; Department of Geography, University of Liège, Liège, Belgium

Recommended Citation:
Noël B,, Jan Van De Berg W,, MacHguth H,et al. A daily, 1 km resolution data set of downscaled Greenland ice sheet surface mass balance (1958-2015)[J]. Cryosphere,2016-01-01,10(5)
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