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利用和田市气象站的0℃层高度,和田河上游乌鲁瓦提和同古孜洛克水文站的实测流量资料,以及NCEP/NCAR500hPa月平均温度资料,分析了和田河夏季流量的变化、同期流域内0℃层高度情况以及500hPa温度的特征。结果显示:1961—2004年,和田河夏季流量、和田站0℃层高度均呈不显著的线性下降趋势,在1979年分别出现了由丰到枯、由高到低的突变。和田河夏季流量典型偏丰、偏枯年同期500hPa温度距平场有显著差异。在年代际和年际尺度上,和田河夏季流量对流域内0℃层高度变化都有明显的响应。
Based on the 0 ℃ layer height of Hotan weather station, the measured flow data of Wuluwati and Tongguzilike hydrological stations in the upper reaches of Hotan River and the monthly average temperature data of NCEP / NCAR500hPa, the change of summer flow in Hotan River was analyzed. 0 ℃ layer height and 500hPa temperature characteristics. The results showed that there was no significant linear decrease in summer flow of Hetian River and 0 ℃ of Hetian Station from 1961 to 2004. From 1979 to 2004, there appeared a sudden change from high to low and high to low respectively. The Hetian River has a typical summer rainfall. There is a significant difference in the temperature anomaly field at 500 hPa over the same period of dry year. On the interdecadal and interannual scales, the summer flow of the Hetian River has obvious response to the 0 ℃ layer height in the drainage basin.