DOI: 10.1007/s00382-013-1744-6
Scopus记录号: 2-s2.0-84886642552
论文题名: Added value of convection permitting seasonal simulations
作者: Prein A.F. ; Gobiet A. ; Suklitsch M. ; Truhetz H. ; Awan N.K. ; Keuler K. ; Georgievski G.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2013
卷: 41, 期: 2017-09-10 起始页码: 2655
结束页码: 2677
语种: 英语
英文关键词: Added value
; Convection permitting simulation
; Dynamical downscaling
; High resolution
; Regional climate modeling
英文摘要: In this study the added value of a ensemble of convection permitting climate simulations (CPCSs) compared to coarser gridded simulations is investigated. The ensemble consists of three non hydrostatic regional climate models providing five simulations with ~10 and ~3 km (CPCS) horizontal grid spacing each. The simulated temperature, precipitation, relative humidity, and global radiation fields are evaluated within two seasons (JJA 2007 and DJF 2007-2008) in the eastern part of the European Alps. Spatial variability, diurnal cycles, temporal correlations, and distributions with focus on extreme events are analyzed and specific methods (FSS and SAL) are used for in-depth analysis of precipitation fields. The most important added value of CPCSs are found in the diurnal cycle improved timing of summer convective precipitation, the intensity of most extreme precipitation, and the size and shape of precipitation objects. These improvements are not caused by the higher resolved orography but by the explicit treatment of deep convection and the more realistic model dynamics. In contrary improvements in summer temperature fields can be fully attributed to the higher resolved orography. Generally, added value of CPCSs is predominantly found in summer, in complex terrain, on small spatial and temporal scales, and for high precipitation intensities. © 2013 The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54742
Appears in Collections: 过去全球变化的重建
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作者单位: Wegener Center for Climate and Global Change (WEGC) and IGAM/Institute of Physics, University of Graz, Brandhofgasse 5, 8010 Graz, Austria; Institute of Meteorology, University of Natural Resources and Life Sciences, Peter-Jordan-Straße 8, 1190 Vienn, Austria; LS Umweltmeteorologie, Brandenburg University of Technology (BTU), Burger Chaussee 2, Haus 4/3, Campus Nord, 03044 Cottbus, Germany
Recommended Citation:
Prein A.F.,Gobiet A.,Suklitsch M.,et al. Added value of convection permitting seasonal simulations[J]. Climate Dynamics,2013-01-01,41(2017-09-10)