Spatio-temporal variation characteristics of extreme precipitation over the Dongting Lake basin

نویسندگان

چکیده

Abstract Using the global Moran's I and other statistical methods, spatio-temporal variation characteristics of extreme precipitation over Dongting Lake basin are studied based on daily at national meteorological stations from 1960 to 2016. The results show that spatial distribution is very uneven. areas with maximum located in Lishui River basin, middle reaches Zishui lower Yuanshui River. There more windward slope than lake area. two typical modes for after empirical orthogonal function decomposition, namely north–south mode northwest–southeast mode. event likely occur northwestern southeastern Hunan Province. an obvious clustering basin. positive. In addition, most shows increasing tendency. Also, have significant abrupt change occurred around late 1980s.

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ژورنال

عنوان ژورنال: Journal of Water and Climate Change

سال: 2022

ISSN: ['2040-2244', '2408-9354']

DOI: https://doi.org/10.2166/wcc.2022.320