| 1997、1998年长江上游地区水汽输送及其与径流量之间关系的对比分析 |
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| 引用本文： | 马岚,许熙.1997、1998年长江上游地区水汽输送及其与径流量之间关系的对比分析[J].应用气象学报,2000,11(4):491-498. |
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| 作者姓名： | 马岚 许熙 |
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| 作者单位： | 国家卫星气象中心, 北京 100081 |
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| 摘 要： | 该文利用1997、1998年7~8月的探空资料, 计算了围绕长江上游地区四周925~200 hPa之间的水汽通量及每日的水汽输送净量.通过水汽输送净量的候、旬资料, 讨论了长江上游地区水汽输送净量与径流量之间的关系, 发现这两者之间有显著的相关性, 其平均相关系数为0.871.另外, 对比分析了这一地区1997与1998年水汽输送与大气环流形势的关系.其结果表明:由于特殊的大气环流背景, 导致了长江上游地区这两年水汽输送的主要方向差异很大.
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| 关 键 词： | 长江上游地区 水汽输送 径流量 |
| 收稿时间： | 2000-02-02 |
Analysis of Water Vapor Transportation over the Upper Reaches of the Changjiang River and Its Relation with the Run-off in 1997 and 1998 |
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| Ma Lan,Xu Xi,Gao Yun,Ma Zailan.Analysis of Water Vapor Transportation over the Upper Reaches of the Changjiang River and Its Relation with the Run-off in 1997 and 1998[J].Quarterly Journal of Applied Meteorology,2000,11(4):491-498. |
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| Authors: | Ma Lan Xu Xi Gao Yun Ma Zailan |
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| Institution: | National Satellite Meteorological Center, Beijing 100081 |
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| Abstract: | Using the radiosonde data in summer of 1997 to 1998, the water vapor flux over the upper reaches of the Changjiang River from 925 hPa to 200 hPa are calculated. The relationship between the inflow of water vapor and the run off over the area and contrast analysis between 1997 and 1998 is made based on the five day and ten day averages of net inflow water vapor. The statistical dependence is described and the relation between water vapor transportation and circulation situation is discussed. |
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| Keywords: | Water vapour transportation Run off Upper reaches of the Changjiang River |
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