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| A Quick Report on a Dynamical Downscaling Simulation over China using the Nested Model |
| YU En-Tao,WANG Hui-Jun,SUN Jian-Qi |
| 1. Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China；2. Climate Change Research Center, Chinese Academy of Sciences, Beijing 100029, China；3. Graduate University of the Chinese Academy of Sciences, Beijing 100049, China,1. Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China；2. Climate Change Research Center, Chinese Academy of Sciences, Beijing 100029, China,1. Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China |
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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.
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Received: 15 October 2010
Revised: 08 November 2010
Accepted: 08 November 2010
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