1964—2016年石河子地区降水特征分析

Analysis on Precipitation Characteristics in Shihezi Area from 1964 to 2016

利用石河子地区4个台站1964—2016年近52年降水资料分析石河子地区的降水变化特征。结果表明,石河子地区降水空间分布差异明显,南部地区的降水量明显高于北部地区;石河子地区各地降水量年际变化较大,总体呈波动上升的趋势,其降水气候倾向率为11.4 mm/10年;降水通常集中在4—8月,其降水占全年降水的47.5%左右,其中又以4月、5月降水最多。

By using the precipitation data of 4 stations in recent 52 years （ 1964-2016）, the precipitation change characteristics of Shihezi area were analyzed in this paper. The results showed that the spatial distribution of precipitation in Shihezi area was obviously different from place to place, and the precipitation in the southern area was obviously more than that in the northern area. The annual precipitation varied greatly in Shihezi area,and showed a fluctuating increasing trend. The precipitation tendency was 11.4 mm per 10 years. Precipitation usually concentrated during April to August. In this period, the precipitation accounted for about 47.5% of the annual precipitation, and the most precipitation appeared in April and May.