The authors appreciate those who have provided data and constructive comments. The CFSR data is provided by National Center for Atmosphere Research in Boulder, Colorado, USA, from their Web site at http://rda.ucar.edu /dataset/. ERA-Interim data is provided by the European Centre for Medium-Range Weather Forecasts, in Reading, UK, from their Web site at http://apps.ecmwf.int /datasets/. CRU data is provided by University of East Anglia, in Norwich, UK, from their Web site at http://crudata.eau.ac.uk /cru/data. PRECL, GPCP and CMAP Precipitation data are provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, from their Web site at http://www.esrl.noaa.gov/psd/ . The gauge data in Dongting Lake basin are obtained provided by National Meteorological Information Center in Beijing, China, from http://data.cma.cn/data/ . The indexes of WPSH are provided by National climate center, in Beijing, China, from their Web site at http://cmdp.ncc-cma.net/160/74.php . This study is jointly supported by Aid program of Research Center for Environment Education of Hunan Province (HJ19K03), Natural science foundation of Hunan Province (2018JJ2009).
