MJO Simulations by GAMIL1.0 and GAMIL2.0  

作　　者：XIE Xin WANG Bin LI Li-Juan DONG Li 

机构地区：[1]State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG),Institute of Atmospheric Physics(lAP),Chinese Academy of Sciences,Beijing 100029,China

出　　处：《Atmospheric and Oceanic Science Letters》2012年第1期49-54,共6页大气和海洋科学快报（英文版）

基　　金：supported by the Strategic Priority Research Program of the Chinese Academy of Sci-ences (Grant No. XDA05110304);the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No. KZCX2-YW-Q11-04);the National High Technology Research and Development Program of China (863 Program, Grant No. 2010AA012304);the National Basic Research Program of China (973 Program,Grant No. 2010CB951904);the National Natural Science Foundation of China (Grant Nos. 41023002 and 41005053)

摘　　要：GAMIL2.0 is the newly released version of the Grid-point Atmospheric Model of IAP LASG(GAMIL),in which the major modifications from GAMIL1.0 include an updated deep convection scheme and the incorporation of a two-moment bulk stratiform cloud microphysics scheme.This study evaluates the performances of both versions on Madden Julian Oscillation(MJO) simulations.The results show that GAMIL2.0 obtains an enhanced MJO eastward and northward propagation,which is weak in GAMIL1.0,and it reproduces a more reasonable MJO major structure coupling upper level wind,lower level wind,and outgoing long wave radiation.The contributions of each scheme and factor to the improvement of GAMIL2.0 simulations need further study.GAMIL2.0 is the newly released version of the Grid-point Atmospheric Model of IAP LASG （GAMIL）, in which the major modifications from GAMIL1.0 include an updated deep convection scheme and the incorporation of a two-moment bulk stratiform cloud microphysics scheme. This study evaluates the performances of both versions on Madden Julian Oscillation （MJO） simulations. The results show that GAMIL2.0 obtains an enhanced MJO eastward and northward propagation, which is weak in GAMIL1.0, and it reproduces a more reasonable MJO major structure coupling upper level wind, lower level wind, and outgoing long wave radiation. The contributions of each scheme and factor to the improvement of GAMIL2.0 simulations need further study.

关 键 词：MJO GAMIL evaluation 

分 类 号：P425.42[天文地球—大气科学及气象学] P128.15