title: Hydrological impacts of precipitation extremes in the Huaihe River Basin, China.
abstract: Precipitation extremes play a key role in flooding risks over the Huaihe River Basin, which is important to understand their hydrological impacts. Based on observed daily precipitation and streamflow data from 1958 to 2009, eight precipitation indices and three streamflow indices were calculated for the study of hydrological impacts of precipitation extremes. The results indicate that the wet condition intensified in the summer wet season and the drought condition was getting worse in the autumn dry season in the later years of the past 50 years. The river basin had experienced higher heavy rainfall-related flooding risks in summer and more severe drought in autumn in the later of the period. The extreme precipitation events or consecutive heavy rain day events led to the substantial increases in streamflow extremes, which are the main causes of frequent floods in the Huaihe River Basin. The large inter-annual variation of precipitation anomalies in the upper and central Huaihe River Basin are the major contributor for the regional frequent floods and droughts.
authors: School of Atmospheric Sciences, Nanjing University, Nanjing, 210023 Jiangsu China ; CMA-NJU Joint Laboratory for Climate Prediction Studies, Nanjing University, Nanjing, 210023 Jiangsu China ; School of Geographical Sciences, Fujian Normal University, Fuzhou, 350007 Fujian China.
authors: Mangen
authors: 0000-0003-0650-8350
authors: M
authors: Yang
authors: School of Atmospheric Sciences, Nanjing University, Nanjing, 210023 Jiangsu China ; CMA-NJU Joint Laboratory for Climate Prediction Studies, Nanjing University, Nanjing, 210023 Jiangsu China.
authors: Xing
authors: X
authors: Chen
authors: Science Section, Operations-Ontario, Meteorological Service of Canada, Environment Canada, Toronto, Canada.
authors: Chad Shouquan
authors: CS
authors: Cheng
keywords: China; Huaihe River Basin; Hydrological impacts; Precipitation extremes; Precipitation indices; Streamflow