气候变化领域集成服务门户(CCPortal): An efficient surface energy-mass balance model for snow and ice

CCPortal

DOI	10.5194/tc-13-1529-2019
	An efficient surface energy-mass balance model for snow and ice
	Born A.; Imhof M.A.; Stocker T.F.
发表日期	2019
ISSN	19940416
EISSN	13
起始页码	1529
结束页码	1546
卷号	13 期号:5
英文摘要	A comprehensive understanding of the state and dynamics of the land cryosphere and associated sea level rise is not possible without taking into consideration the intrinsic timescales of the continental ice sheets. At the same time, the ice sheet mass balance is the result of seasonal variations in the meteorological conditions. Simulations of the coupled climate-ice-sheet system thus face the dilemma of skillfully resolving short-lived phenomena, while also being computationally fast enough to run over tens of thousands of years. As a possible solution, we present the BEr n Snow SImulator (BESSI), a surface energy and mass balance model that achieves computational efficiency while simulating all surface and internal fluxes of heat and mass explicitly, based on physical first principles. In its current configuration it covers most land areas of the Northern Hemisphere. Input data are daily values of surface air temperature, total precipitation, and shortwave radiation. The model is calibrated using present-day observations of Greenland firn temperature, cumulative Greenland mass changes, and monthly snow extent over the entire domain. The results of the calibrated simulations are then discussed. Finally, as a first application of the model and to illustrate its numerical efficiency, we present the results of a large ensemble of simulations to assess the model's sensitivity to variations in temperature and precipitation. © 2019 Author(s).
学科领域	climate conditions; cryosphere; ice cover; ice sheet; mass balance; meteorology; Northern Hemisphere; precipitation (climatology); sea level change; seasonal variation; shortwave radiation; snow cover; surface energy; Arctic; Greenland; Ziziphus mauritiana
语种	英语
scopus关键词	climate conditions; cryosphere; ice cover; ice sheet; mass balance; meteorology; Northern Hemisphere; precipitation (climatology); sea level change; seasonal variation; shortwave radiation; snow cover; surface energy; Arctic; Greenland; Ziziphus mauritiana
来源期刊	The Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118880
作者单位	Department of Earth Science, University of Bergen, Bergen, Norway; Bjerknes Centre for Climate Research, University of Bergen, Bergen, Norway; Climate and Environmental Physics, University of Bern, Bern, Switzerland; Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland; Laboratory of Hydraulics Hydrology and Glaciology, ETH Zürich, Zurich, Switzerland
推荐引用方式 GB/T 7714	Born A.,Imhof M.A.,Stocker T.F.. An efficient surface energy-mass balance model for snow and ice[J],2019,13(5).
APA	Born A.,Imhof M.A.,&Stocker T.F..(2019).An efficient surface energy-mass balance model for snow and ice.The Cryosphere,13(5).
MLA	Born A.,et al."An efficient surface energy-mass balance model for snow and ice".The Cryosphere 13.5(2019).