| 淮河流域水汽收支的若干特征 |
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| 引用本文： | 林文实,简茂球.淮河流域水汽收支的若干特征[J].气象科学,2000,20(1):9-14. |
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| 作者姓名： | 林文实 简茂球 |
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| 作者单位： | 中山大学大气科学系,广州,510275 |
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| 基金项目： | 国家自然科学基金!49794030 |
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| 摘 要： | 利用欧洲中心１９８０－１９８６年７年逐日资料和同期淮河流域的降水资料，计算了该地区的大气水汽汇的时间变化和空间分布，并分析了它们与降水量和蒸发量的关系。结果表明：淮河流域的７年平均降水量为８５７．５ｍｍ，年蒸发量为８４２．０ｍｍ，水汽收支大致相当。水汽汇的年际变化较大。７年平均水汽汇最大值在淮河上游信阳一带，最小值位于流域东部。淮河流域平均降水在７月份最大（２１１ｍｍ），蒸发量同时达到最大（１６７
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| 关 键 词： | 淮河流域 大气水汽汇 水汽收支 降水量 |
SOME CHARACTERISTICS OF MOISTURE BUDGET OVER HUAIHE RIVER BASIN |
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| Lin Wenshi,Jian Maoqiu,Luo Huibang.SOME CHARACTERISTICS OF MOISTURE BUDGET OVER HUAIHE RIVER BASIN[J].Scientia Meteorologica Sinica,2000,20(1):9-14. |
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| Authors: | Lin Wenshi Jian Maoqiu Luo Huibang |
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| Abstract: | The time variations and distributions of moisture sinks Q_2 over Huaihe River Basin and their relations with rainfall and evaporation are discussed using ECMWF data and rainfall from 1980 to 1986. The results show that the 7-year mean rainfall is equal to the e- vaporation over Huaihe River Basin. The yearly variations of moisture sinks are rather large. The maximum of 7-year mean vertically integrated moisture sinks locates at the upper reach of the Huaihe River Basin and its minimum in the east-northern of the Basin. The 7-year mean rainfall reaches its maximum in July,and so does the evaporation. The moisture sinks in the all Basin are negative and its low center locates at the middle reach of the Huaihe River Basin in drought month. The moisture sinks in the all Basin are positive and its high center locates in west-southern of the Basin in flood month. |
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| Keywords: | Huaihe River Basin Moisture sinks Moisture budget |
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