A Quick Report on a Dynamical Downscaling Simulation over China Using the Nested Model
A Quick Report on a Dynamical Downscaling Simulation over China Using the Nested Model
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DOI：
10.1080/16742834.2010.11446886
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发表时间：
2010-01
影响因子：
2.3
通讯作者：
Yu En-Tao;Wang Huijun;Sun Jian-qi
中科院分区：
文献类型：
--
作者：
Yu En-Tao;Wang Huijun;Sun Jian-qi
本文介绍了一个嵌套模式系统在中国的动力降尺度模拟，该系统由改进的天气研究和预报模式（WRF）和NCAR社区大气模式（CAM）嵌套而成。结果表明，动力降尺度对改进模式对区域气候特征的模拟具有重要价值。WRF比CAM更好地模拟区域详细的温度特征。随着观测与模拟之间的空间相关系数从CAM的0.54增加到WRF的0.79，WRF对降水模拟的改善更为明显。此外，WRF模拟纠正了CAM模拟中降水的空间偏差。
Abstract 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.