黄河上游水汽时空分布特征

本文以黄河上游大武、久治、甘德、玛曲、达日、河南、同德、泽库、班玛、中心站地面资料，及达日、红源、合作三站高空资料，分析了地面及高空水汽含量分布；并计算了该地区水汽通量及水汽通量散度，得出该地区水汽含量较高，水汽输送量大且存在辐合，形成水汽汇、有较大的增水潜力，利于人工增雨，起到增加黄河水量，加大电量生产，加快西部经济发展的目的。

SPACE-TIME DISTRIBUTION CHARACTERISTIC OF MOISTURE OVER UPPER STREAM OF YELLOW RIVER

Based on the upper-air data of Dari, Hongyuan and Hezuo and data of ground meteorological station over Dawu, Jiuzhi, Gande, Maqu, Dari, Henan, Tongde, Zeku, Banma and the center station of upper stream of Yellow River, this paper analyzed the moisture flux divergence in this area. The result shows that the precipitation enhancement in the area is favorable due to the higher moisture and convergence of moisture transport, and also made easy to increase electric productivity and the economic development of west China.