The daily variation characteristics of summer precipitation over the Yili River Valley, Xinjiang
Based on the hourly precipitation data from four stations over the Yili River Valley during 2007 2011,the daily variation characteristics of summer precipitation were analyzed.The results showed that the maximum precipitation appears at 22:00 Beijing Time (BT),and the minimum precipitation appears at 13:00 (BT),mainly concentrating in between 21:00 and 08:00 (BT).The maximum precipitation frequency occurs in between 23:00 and 10:00 (BT),with the maximum value at 03:00 (BT) and the minimum value at 16:00(BT).The maximum precipitation intensity generally appears at 16:00 (BT) and the minimum one occurs at 13:00 (BT).There is short-term precipitation frequently over the Yili River Valley,mostly with the time less than one hour.The precipitation events of 2-hour have most contribution to the total precipitation,and the precipitation events of 14-hour have least contribution to the total precipitation.The summer precipitation over the Yili River Valley mostly occurs at night,with short-term precipitation events frequently.
Yili River Valleysummer precipitationdaily variation of precipitationprecipitation frequencyprecipitation intensity
NETL
NSTL
万方数据
维普
