气候变化领域集成服务门户(CCPortal): Convection-permitting regional climate simulation of warm-season precipitation over Eastern China

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DOI	10.1007/s00382-019-05070-y
	Convection-permitting regional climate simulation of warm-season precipitation over Eastern China
	Yun Y.; Liu C.; Luo Y.; Liang X.; Huang L.; Chen F.; Rasmmusen R.
发表日期	2020
ISSN	0930-7575
起始页码	1469
结束页码	1489
卷号	54
英文摘要	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. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Aerosol effect; Convection-permitting simulation; Diurnal cycle; East Asia; Propagating convection; Sub-grid cloud; Warm-season precipitation
语种	英语
scopus关键词	aerosol; atmospheric convection; climate modeling; diurnal variation; precipitation (climatology); regional climate; seasonal variation; China
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145637
作者单位	State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, China; National Center for Atmospheric Research, Boulder, United States; Guangzhou Institute of Tropical and Marine Meteorology, Guangzhou, China; Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, China
推荐引用方式 GB/T 7714	Yun Y.,Liu C.,Luo Y.,et al. Convection-permitting regional climate simulation of warm-season precipitation over Eastern China[J],2020,54.
APA	Yun Y..,Liu C..,Luo Y..,Liang X..,Huang L..,...&Rasmmusen R..(2020).Convection-permitting regional climate simulation of warm-season precipitation over Eastern China.Climate Dynamics,54.
MLA	Yun Y.,et al."Convection-permitting regional climate simulation of warm-season precipitation over Eastern China".Climate Dynamics 54(2020).