DOI: 10.5194/tc-12-811-2018
Scopus记录号: 2-s2.0-85043401211
论文题名: Modelling the climate and surface mass balance of polar ice sheets using RACMO2 - Part 1: Greenland (1958-2016)
作者: 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
刊名: Cryosphere
ISSN: 19940416
出版年: 2018
卷: 12, 期: 3 起始页码: 811
结束页码: 831
语种: 英语
英文关键词: albedo
; climate change
; climate modeling
; energy balance
; glacier mass balance
; ice sheet
; mass balance
; regional climate
; snow cover
; spatiotemporal analysis
; surface energy
; Arctic
; Greenland
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75405
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 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
Recommended Citation:
Noël B,, Van De Berg W,J,et al. Modelling the climate and surface mass balance of polar ice sheets using RACMO2 - Part 1: Greenland (1958-2016)[J]. Cryosphere,2018-01-01,12(3)