DOI: 10.5194/tc-8-801-2014
Scopus记录号: 2-s2.0-84900016884
论文题名: Drifting snow measurements on the Greenland Ice Sheet and their application for model evaluation
作者: 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
刊名: Cryosphere
ISSN: 19940416
出版年: 2014
卷: 8, 期: 2 起始页码: 801
结束页码: 814
语种: 英语
英文关键词: climate modeling
; ice drift
; ice mechanics
; particle size
; precipitation (climatology)
; regional climate
; snow cover
; Arctic
; Greenland
; Greenland Ice Sheet
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/74855
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
There are no files associated with this item.
作者单位: Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Utrecht, Netherlands; Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan
Recommended Citation:
Lenaerts J,T,M,et al. Drifting snow measurements on the Greenland Ice Sheet and their application for model evaluation[J]. Cryosphere,2014-01-01,8(2)