A Quick Report on a Dynamical Downscaling Simulation over China Using the Nested Model

被引:88
作者
Yu En-Tao [1 ,2 ,3 ]
Wang Hui-Jun [1 ,2 ]
Sun Jian-Qi [1 ]
机构
[1] Chinese Acad Sci, Inst Atmospher Phys, Nansen Zhu Int Res Ctr, Beijing 100029, Peoples R China
[2] Chinese Acad Sci, Climate Change Res Ctr, Beijing 100029, Peoples R China
[3] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
基金
中国国家自然科学基金;
关键词
dynamical downscaling; WRF; CAM;
D O I
10.1080/16742834.2010.11446886
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
This paper describes a dynamical downscaling simulation over China using the nested model system, which consists of the modified Weather Research and Forecasting Model (WRF) nested with the NCAR Community Atmosphere Model (CAM). Results show that dynamical downscaling is of great value in improving the model simulation of regional climatic characteristics. WRF simulates regional detailed temperature features better than CAM. With the spatial correlation coefficient between the observation and the simulation increasing from 0.54 for CAM to 0.79 for WRF, the improvement in precipitation simulation is more perceptible with WRF. Furthermore, the WRF simulation corrects the spatial bias of the precipitation in the CAM simulation.
引用
收藏
页码:325 / 329
页数:5
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