GSTDTAP  > 气候变化
DOI10.1029/2019JD031470
Impact of Cloud Physics on the Greenland Ice Sheet Near-Surface Climate: A Study With the Community Atmosphere Model
Lenaerts, Jan T. M.1; Gettelman, Andrew2; Van Tricht, Kristof3; van Kampenhout, Leo4; Miller, Nathaniel B.5
2020-04-16
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
EISSN2169-8996
出版年2020
卷号125期号:7
文章类型Article
语种英语
国家USA; Belgium; Netherlands
英文摘要

The Greenland Ice Sheet (GrIS) is losing mass in an accelerated fashion, which is for similar to 60% dominated by an increase in surface melting. Clouds exhibit an important control on the GrIS surface energy balance and surface melt. Therefore, to better simulate present and future GrIS climate, it is essential to represent clouds correctly in climate models. Here we use ground (at Summit Station) and satellite remote sensing (from CloudSat-CALIPSO) observations to evaluate GrIS cloud characteristics in several versions of the Community Atmosphere Model (CAM) over the period 2007-2012. Cloud cover, phase, water path, and radiative effects over the GrIS vary widely across the atmosphere models. Thanks to the inclusion of new cloud physical parameterizations, that is, ice nucleation and prognostic precipitation, in the most recent CAM version (CAM6), this model, amongst the various CAM versions, is best able to represent GrIS clouds, summer temperatures, and surface melting. However, CAM6 shows excessive rainfall over the ice sheet, which is an important outstanding model bias. Our study demonstrates the importance of simulating realistic cloud properties to improve climate model simulations of GrIS climate and climate change.


领域气候变化
收录类别SCI-E
WOS记录号WOS:000526643500013
WOS关键词EARTH SYSTEM MODEL ; MASS-BALANCE ; PART I ; SATELLITE-OBSERVATIONS ; PARAMETERIZATION ; MICROPHYSICS ; RADIATION ; NUCLEATION ; SIMULATIONS ; REANALYSES
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/280185
专题气候变化
作者单位1.Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA;
2.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA;
3.Flemish Inst Technol Res VITO, Remote Sensing Unit, Mol, Belgium;
4.Univ Utrecht, Inst Marine & Atmospher Res Utrecht, Utrecht, Netherlands;
5.Univ Colorado, CIRES, Boulder, CO 80309 USA
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GB/T 7714
Lenaerts, Jan T. M.,Gettelman, Andrew,Van Tricht, Kristof,et al. Impact of Cloud Physics on the Greenland Ice Sheet Near-Surface Climate: A Study With the Community Atmosphere Model[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(7).
APA Lenaerts, Jan T. M.,Gettelman, Andrew,Van Tricht, Kristof,van Kampenhout, Leo,&Miller, Nathaniel B..(2020).Impact of Cloud Physics on the Greenland Ice Sheet Near-Surface Climate: A Study With the Community Atmosphere Model.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(7).
MLA Lenaerts, Jan T. M.,et al."Impact of Cloud Physics on the Greenland Ice Sheet Near-Surface Climate: A Study With the Community Atmosphere Model".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.7(2020).
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