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contributor authorSunny Lim, Kyo-Sun
contributor authorHong, Song-You
contributor authorYoon, Jin-Ho
contributor authorHan, Jongil
date accessioned2017-06-09T17:36:33Z
date available2017-06-09T17:36:33Z
date copyright2014/10/01
date issued2014
identifier issn0882-8156
identifier otherams-88006.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4231739
description abstracthe most recent version of the simplified Arakawa?Schubert (SAS) cumulus scheme in the National Centers for Environmental Prediction (NCEP) Global Forecast System (GFS) (GFS SAS) is implemented in the Weather Research and Forecasting (WRF) Model with a modification of the triggering condition and the convective mass flux in order to make it dependent on the model?s horizontal grid spacing. The East Asian summer monsoon season of 2006 is selected in order to evaluate the performance of the modified GFS SAS scheme. In comparison to the original GFS SAS scheme, the modified GFS SAS scheme shows overall better agreement with the observations in terms of the simulated monsoon rainfall. The simulated precipitation from the original GFS SAS scheme is insensitive to the model?s horizontal grid spacing, which is counterintuitive because the portion of the resolved clouds in a grid box should increase as the model grid spacing decreases. This behavior of the original GFS SAS scheme is alleviated by the modified GFS SAS scheme. In addition, three different cumulus schemes (Grell and Freitas, Kain and Fritsch, and Betts?Miller?Janji?) are chosen to investigate the role of a horizontal resolution on the simulated monsoon rainfall. Although the forecast skill of the surface rainfall does not always improve as the spatial resolution increases, the improvement of the probability density function of the rain rate with the smaller grid spacing is robust regardless of the cumulus parameterization scheme.
publisherAmerican Meteorological Society
titleSimulation of the Summer Monsoon Rainfall over East Asia Using the NCEP GFS Cumulus Parameterization at Different Horizontal Resolutions
typeJournal Paper
journal volume29
journal issue5
journal titleWeather and Forecasting
identifier doi10.1175/WAF-D-13-00143.1
journal fristpage1143
journal lastpage1154
treeWeather and Forecasting:;2014:;volume( 029 ):;issue: 005
contenttypeFulltext


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