Convection-permitting regional climate simulation of warm-season precipitation over Eastern China
Convection-permitting regional climate simulation of warm-season precipitation over Eastern China
复制标题
中国东部暖季降水允许对流区域气候模拟
DOI：
10.1007/s00382-019-05070-y
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发表时间：
2019-12
期刊：
影响因子：
4.6
通讯作者：
Rasmmusen Roy
中科院分区：
文献类型：
--
作者：
Yun Yuxing;Liu Changhai;Luo Yali;Liang Xudong;Huang Ling;Chen Fei;Rasmmusen Roy
对流渗透的区域气候模型已被证明可以改善许多方面的降水模拟，例如在世界上几个地理区域的许多研究中，昼夜周期，降水频率，强度和极端
Convection-permitting regional climate models have been shown to improve precipitation simulation in many aspects, such as the diurnal cycle, precipitation frequency, intensity and extremes in many studies over several geographical regions of the world, but their skill in reproducing the warm-season precipitation characteristics over the East Asia has not been robustly tested yet. Motivated by recent advances in computing power, model physics and high-resolution reanalysis, we use the convection-permitting weather research and forecasting (WRF) model configured with 3 km grid spacing to simulate the warm-season precipitation in eastern China for 10 seasons (2008–2017). The hourly 31-km-resolution ERA5 reanalysis data are used to provide initial and boundary conditions for the simulations. The objectives are (1) to evaluate the model skill in simulating warm-season precipitation climatology in the East Asian monsoon region, (2) to identify the promises and problems of the convection-permitting simulation, and (3) to investigate solutions for the model deficiencies. Results demonstrate that the 3-km-resolution WRF model reasonably reproduces the spatial characteristics of seasonal and sub-seasonal precipitation, the seasonal meridional migration associated with the summer monsoon activity, the diurnal variation phase and amplitude, and the propagating convection east of the Tibetan Plateau. The major deficiency is that the model overestimates precipitation amount, especially in the afternoon. Analysis and sensitivity experiments suggest that improved treatment of sub-grid cloud fraction and the aerosol effects may help to suppress the oft-reported high precipitation bias. These results provide useful guidance for improving the model skill at simulating warm-season precipitation in East Asia.
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影响因子：
8.9
作者：
Changhai Liu;M. Moncrieff;J. Tuttle
通讯作者：
Changhai Liu;M. Moncrieff;J. Tuttle
四川盆地及西南邻区雨季降水
影响因子：
3.2
作者：
Qian Tingting;Zhao Ping;Zhang Fuqing;Bao Xinghua
通讯作者：
Bao Xinghua
影响因子：
--
作者：
Yan Shen;A. Xiong;Ying Wang;P. Xie
通讯作者：
Yan Shen;A. Xiong;Ying Wang;P. Xie
影响因子：
4.9
作者：
E. Salathe;Richard C. Steed;C. Mass;P. H. Zahn
通讯作者：
E. Salathe;Richard C. Steed;C. Mass;P. H. Zahn
影响因子：
5.5
作者：
K. Ikeda;R. Rasmussen;Changhai Liu;D. Gochis;D. Yates;Fei Chen;M. Tewari;M. Barlage;J. Dudhia-J.-D
通讯作者：
K. Ikeda;R. Rasmussen;Changhai Liu;D. Gochis;D. Yates;Fei Chen;M. Tewari;M. Barlage;J. Dudhia-J.-D