摘要
选择和田河流域作为和田地区水资源的典型代表,和田河流域代表站和田市气象站1961～2004年的夏季高空500～300hPa气温、0℃层高度资料、和田河上游(乌鲁瓦提和同古孜洛克站)水文资料,分析了和田河流域夏季高空气温、0℃层平均高度和夏季流量的年际线性趋势变化。结果表明:近44a来和田河流域夏季高空500～300hPa平均气温和0℃层高度呈下降趋势,倾向率分别为-0.322℃/10a、-32.42gpm/10a;夏季流量也呈下降趋势,其倾向率为-7.26m3s-1/10a。和田河流域夏季高空500～300hPa平均气温和0℃层高度的下降等高空气候变化是和田河夏季流量减少的主要原因。
Regarded the Hotan River valley as water resource representative in Hotan area, based on the data of 500 300hPa upper air temperature and 0℃ level height at Hotan meteorological station in summer, and aestival runoff volume at Uluwati and Tongguziluokezi station located in upriver areas of the Hotan River from 1961 to 2004, analyzes their linear annual change trend. The results are shown the average temperature between 500 hPa and 300 hPa, 0℃ level height and the aestival runoff volume decrease at the rate of -0.322℃/10a, -32.42 gpm/10a and -7.26 m^3s^-1/10a respectively in the recent 44 years. The above factors are the main reasons that caused the aestiva runoff volume of the Hotan River to decrease.
出处
《新疆气象》
2006年第3期8-10,共3页
Bimonthly of Xinjiang Meteorology
基金
科技部社会公益研究项目(2004DIB3J118)资助。
关键词
高空气候变化
0℃层高度
夏季流量变化
和田河
upper climate change
0℃ level height
change of aestival runoff volume
the Hotan River
