Impacts of Land Process on the Onset and Evolution of Asian Summer Monsoon in the NCEP Climate Forecast System

查看全文 作　　者：Song [1]YANG;[2]温敏;Rongqian [3]YANG;Wayne [1]HIGGINS;[2]张人禾

机构地区：[1]NOAA 's Climate Prediction Center, Camp Springs, Maryland 20746;[2]State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081;[3]NOAA's Environmental Modeling Center, Camp Springs, Maryland 20746

出　　处：《Advances in Atmospheric Sciences》索引2011年第28卷第6期,共17页

基　　金：partially supported by the International S & T Cooperation Project of the Ministry of Science and Technology of China (Grant No. 2009DFA21430);the National Natural Science Foundation of China (Grant No. 40921003);the Basic Scientific Research and Operation Foundation of the CAMS (Grant No. 2010Z003) 摘　　要：Impacts of land models and initial land conditions(ICs) on the Asian summer monsoon,especially its onset,were investigated using the NCEP Climate Forecast System(CFS).Two land models,the Oregon State University(OSU) land model and the NCEP,OSU,Air Force,and Hydrologic Research Laboratory(Noah) land model,were used to get parallel experiments.The experiments also used land ICs from the NCEP/Department of Energy(DOE) Global Reanalysis 2(GR2) and the Global Land Data Assimilation System(GLDAS).Previous studies have demonstrated that,a systematic weak bias appears in the modeled monsoon,and this bias may be related to a cold bias over the Asian land mass.Results of the current study show that replacement of the OSU land model by the Noah land model improved the model's cold bias and produced improved monsoon precipitation and circulation patterns.The CFS predicted monsoon with greater proficiency in El Nin o years,compared to La Nin a years,and the Noah model performed better than the OSU model in monsoon predictions for individual years.These improvements occurred not only in relation to monsoon onset in late spring but also to monsoon intensity in summer.Our analysis of the monsoon features over the India peninsula,the Indo-China peninsula,and the South Chinese Sea indicates different degrees of improvement.Furthermore,a change in the land models led to more remarkable improvement in monsoon prediction than did a change from the GR2 land ICs to the GLDAS land ICs. 关键词：亚洲夏季风土地条件预测系统 NCEP 俄勒冈州立大学气候预测模型演变

相关文献

参考文献（63）
引证文献（3）
耦合文献（425）

参考文献(63)

引证文献(3)

耦合文献(425)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Impacts of Land Process on the Onset and Evolution of Asian Summer Monsoon in the NCEP Climate Forecast System

参考文献(63)

引证文献(3)

耦合文献(425)

用户提示