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黄淮海及其附近地区降水资源的稳定性
Stability of Precipitation Resources in Huang-Huai-Hai River Area and Its Surrounding Area
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摘要: 本文设计三种指标，使用43个站点1951—1982年的逐月和逐日降水资料分析得出：黄淮海及其附近地区降水资源的稳定性可分为南方型、北方型和西南部型三个类型。论述了各型和全年四个季节中降水资源稳定性的时空分布特征。指出多雨区和雨季中降水资源较为稳定，少雨区和旱季中雨量少且不稳定，以及太行山东麓平原地区是本区中降水资源最不稳定的地区。Abstract: Based on the 1951—1982 monthly and daily precipitation data at 43 stations, the three indices, i. e. mean anomaly percentage, mean interannual change percentage, and mean anomalies of mean interval days with daily precipitation greater than 5, 10 and 20 mm, are presented to study the stability of precipitation resources in Huang-Huai-Hai river area and its surrounding area. It can be divided into three types: northern, southern and southwestern. Meanwhile, the characteristics of the stability in temporal and spatial distributions are also discussed for each type and each season
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