气候变化领域集成服务门户(CCPortal): Drifting snow measurements on the Greenland Ice Sheet and their application for model evaluation

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DOI	10.5194/tc-8-801-2014
	Drifting snow measurements on the Greenland Ice Sheet and their application for model evaluation
	Lenaerts J.T.M.; P. Smeets C.J.P.; Nishimura K.; Eijkelboom M.; Boot W.; Van Den Broeke M.R.; Van De Berg W.J.
发表日期	2014
ISSN	19940416
卷号	8 期号:2
英文摘要	This paper presents autonomous drifting snow observations performed on the Greenland Ice Sheet in the fall of 2012. High-frequency snow particle counter (SPC) observations at ~1m above the surface provided drifting snow number fluxes and size distributions; these were combined with meteorological observations at six levels. We identify two types of drifting snow events: katabatic events are relatively cold and dry, with prevalent winds from the southeast, whereas synoptic events are short lived, warm and wet. Precipitating snow during synoptic events disturbs the drifting snow measurements. Output of the regional atmospheric climate model RACMO2, which includes the drifting snow routine PIEKTUK-B, agrees well with the observed near-surface climate at the site, as well as with the frequency and timing of drifting snow events. Direct comparisons with the SPC observations at 1m reveal that the model overestimates the horizontal snow transport at this level, which can be related to an overestimation of saltation and the typical size of drifting snow particles. © Author(s) 2014.
学科领域	climate modeling; ice drift; ice mechanics; particle size; precipitation (climatology); regional climate; snow cover; Arctic; Greenland; Greenland Ice Sheet
语种	英语
scopus关键词	climate modeling; ice drift; ice mechanics; particle size; precipitation (climatology); regional climate; snow cover; Arctic; Greenland; Greenland Ice Sheet
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/120120
作者单位	Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Utrecht, Netherlands; Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan
推荐引用方式 GB/T 7714	Lenaerts J.T.M.,P. Smeets C.J.P.,Nishimura K.,et al. Drifting snow measurements on the Greenland Ice Sheet and their application for model evaluation[J],2014,8(2).
APA	Lenaerts J.T.M..,P. Smeets C.J.P..,Nishimura K..,Eijkelboom M..,Boot W..,...&Van De Berg W.J..(2014).Drifting snow measurements on the Greenland Ice Sheet and their application for model evaluation.Cryosphere,8(2).
MLA	Lenaerts J.T.M.,et al."Drifting snow measurements on the Greenland Ice Sheet and their application for model evaluation".Cryosphere 8.2(2014).