Based on the daily precipitation and temperature data at 77 stations from 1957 to 2014over the Yellow River Basin,spatiotemporal patterns of precipitation extremes were characterized in terms of magnitude,frequency and occurrence timing as well as the influence of summer temperature.Precipitation extremes in this study were defined based on Peak over Threshold(POT)sampling method and changing properties were quantified using change point analysis,trend analysis.The results indicated that the magnitude of ex...