气候变化领域集成服务门户(CCPortal): Moisture source variations for summer rainfall in different intensity classes over Huaihe River Valley, China

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DOI	10.1007/s00382-021-05762-4
	Moisture source variations for summer rainfall in different intensity classes over Huaihe River Valley, China
	Liu Y.; Zhang C.; Tang Q.; Hosseini-Moghari S.-M.; Haile G.G.; Li L.; Li W.; Yang K.; van der Ent R.J.; Chen D.
发表日期	2021
ISSN	0930-7575
起始页码	775
结束页码	789
英文摘要	Rainfall is one of the most influential climatic factors on regional development and environment, and changes in rainfall intensity are of specific concern. In the Huaihe River Valley (HRV), heavy rainfall is a primary trigger of floods. However, the difference in the origin of moisture contributed to heavy rainfall and light rainfall is rarely studied and not entirely understood. This study analyzes the rainfall moisture sources in association with different categories of rainfall intensity over the HRV during 1980–2018 using the Water Accounting Model with ERA-Interim reanalysis and precipitation observations from China Meteorological Administration. The results show that the moisture for the HRV summer rainfall is mainly from terrestrial subregion (40%), the Indian Ocean (27%), the Pacific Ocean (25%), and the local HRV (8%). In addition, moisture sources differ substantially between light and heavy rainfall. Specifically, the local HRV contributes more moisture to light rainfall (12%) compared to heavy rainfall (4%), whereas the Indian Ocean contributes more to heavy rainfall (33%) than to light rainfall (20%). The grids located in the southern source region make higher contribution ratio in heavy rainfall than in light rainfall. These results suggest that moisture from distant oceanic areas, especially the Indian Ocean, plays a crucial role in intense summer rainfall, whereas moisture from the land sources covering local grids plays a dominant role in light rainfall in the HRV. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Heavy rainfall; Huaihe River; Indian Ocean; Moisture source; Water Accounting Model
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/183490
作者单位	Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China; Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China; Department of Meteorology and Atmospheric Science, The Pennsylvania State University, University Park, PA 16802, United States; Earth and Ocean Sciences, Nicholas School of the Environment and Earth Sciences, Duke University, Durham, United States; Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, 100084, China; Department of Water Management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, Netherlands; Regional Climate Group, Department of Earth Sciences, University of Gothenburg, Gothenburg, Swe...
推荐引用方式 GB/T 7714	Liu Y.,Zhang C.,Tang Q.,et al. Moisture source variations for summer rainfall in different intensity classes over Huaihe River Valley, China[J],2021.
APA	Liu Y..,Zhang C..,Tang Q..,Hosseini-Moghari S.-M..,Haile G.G..,...&Chen D..(2021).Moisture source variations for summer rainfall in different intensity classes over Huaihe River Valley, China.Climate Dynamics.
MLA	Liu Y.,et al."Moisture source variations for summer rainfall in different intensity classes over Huaihe River Valley, China".Climate Dynamics (2021).