DOI: 10.1002/2016MS000903
Scopus记录号: 2-s2.0-85019423985
论文题名: Resolution dependence of extreme precipitation and deep convection over the Gulf Stream
作者: Scher S ; , Haarsma R ; J ; , de Vries H ; , Drijfhout S ; S ; , van Delden A ; J
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2017
卷: 9, 期: 2 起始页码: 1186
结束页码: 1194
语种: 英语
英文关键词: Natural convection
; Precipitation (chemical)
; Precipitation (meteorology)
; Surface waters
; Extreme precipitation
; Global circulation model
; Gulfstream
; High-resolution models
; Horizontal resolution
; Natural variability
; Precipitation extremes
; Stormtrack
; Ocean currents
; convection
; extreme event
; general circulation model
; precipitation intensity
; resolution
; sea surface
; storm track
; troposphere
; Atlantic Ocean
; Gulf Stream
英文摘要: Modeled wintertime precipitation over the Atlantic Gulf Stream region is shown to be sensitive to the horizontal resolution of the driving Global Circulation Model (GCM). By contrasting simulations with the EC-Earth GCM over a range of horizontal resolutions (T159, T319, T799), it is shown that especially the precipitation extremes become more populated if resolution is higher. Higher resolution also appears to strengthen the communication from the sea surface toward the troposphere. With increasing resolution, deep convection over the Gulf Stream region, diagnosed via wind-convergence and vertical motion, occurs more frequently and the former is in better agreement with observations. Likewise the frequency increase of the precipitation extremes over the region for increasing resolution makes them agree better with observations, despite large natural variability and discrepancies between different observational sources. © 2017. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75788
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: Weather and climate models, Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands; Institute for Marine and Atmospheric Research (IMAU), Utrecht University, Utrecht, Netherlands; Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, United Kingdom
Recommended Citation:
Scher S,, Haarsma R,J,et al. Resolution dependence of extreme precipitation and deep convection over the Gulf Stream[J]. Journal of Advances in Modeling Earth Systems,2017-01-01,9(2)