气候变化领域集成服务门户(CCPortal): Modelling the climate and surface mass balance of polar ice sheets using RACMO2

CCPortal

DOI	10.5194/tc-12-811-2018
	Modelling the climate and surface mass balance of polar ice sheets using RACMO2 - Part 1: Greenland (1958-2016)
	Noël B.; Van De Berg W.J.; Van Wessem J.M.; Van Meijgaard E.; Van As D.; Lenaerts J.T.M.; Lhermitte S.; Munneke P.K.; Smeets C.J.P.P.; Van Ulft L.H.; Van De Wal R.S.W.; Van Den Broeke M.R.
发表日期	2018
ISSN	19940416
卷号	12 期号:3
英文摘要	We evaluate modelled Greenland ice sheet (GrIS) near-surface climate, surface energy balance (SEB) and surface mass balance (SMB) from the updated regional climate model RACMO2 (1958-2016). The new model version, referred to as RACMO2.3p2, incorporates updated glacier outlines, topography and ice albedo fields. Parameters in the cloud scheme governing the conversion of cloud condensate into precipitation have been tuned to correct inland snowfall underestimation: snow properties are modified to reduce drifting snow and melt production in the ice sheet percolation zone. The ice albedo prescribed in the updated model is lower at the ice sheet margins, increasing ice melt locally. RACMO2.3p2 shows good agreement compared to in situ meteorological data and point SEB/SMB measurements, and better resolves the spatial patterns and temporal variability of SMB compared with the previous model version, notably in the north-east, south-east and along the K-transect in south-western Greenland. This new model version provides updated, high-resolution gridded fields of the GrIS present-day climate and SMB, and will be used for projections of the GrIS climate and SMB in response to a future climate scenario in a forthcoming study. © Author(s) 2018.
学科领域	albedo; climate change; climate modeling; energy balance; glacier mass balance; ice sheet; mass balance; regional climate; snow cover; spatiotemporal analysis; surface energy; Arctic; Greenland
语种	英语
scopus关键词	albedo; climate change; climate modeling; energy balance; glacier mass balance; ice sheet; mass balance; regional climate; snow cover; spatiotemporal analysis; surface energy; Arctic; Greenland
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119205
作者单位	Institute for Marine and Atmospheric Research, Utrecht University, Utrecht, Netherlands; Royal Netherlands Meteorological Institute, De Bilt, Netherlands; Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark; Department of Atmospheric and Oceanic Sciences, University of Colorado, Boulder, United States; Department of Geoscience and Remote Sensing, Delft University of Technology, Delft, Netherlands
推荐引用方式 GB/T 7714	Noël B.,Van De Berg W.J.,Van Wessem J.M.,et al. Modelling the climate and surface mass balance of polar ice sheets using RACMO2 - Part 1: Greenland (1958-2016)[J],2018,12(3).
APA	Noël B..,Van De Berg W.J..,Van Wessem J.M..,Van Meijgaard E..,Van As D..,...&Van Den Broeke M.R..(2018).Modelling the climate and surface mass balance of polar ice sheets using RACMO2 - Part 1: Greenland (1958-2016).Cryosphere,12(3).
MLA	Noël B.,et al."Modelling the climate and surface mass balance of polar ice sheets using RACMO2 - Part 1: Greenland (1958-2016)".Cryosphere 12.3(2018).