| 海河流域夏季旱涝长期天气过程的分析 |
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| 引用本文： | 周鸣盛.海河流域夏季旱涝长期天气过程的分析[J].气象学报,1981,39(3):321-331. |
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| 作者姓名： | 周鸣盛 |
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| 作者单位： | 天津市气象台 |
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| 摘 要： | 本文以海河流域15个测站1951—1976年6—8月的降水量确定夏季旱涝年份。用500毫巴欧亚月平均图分析旱涝年的平均环流特征,发现:具有明显的差别。采用西风指数结合西太平洋副热带高压(以下简称副高)西伸脊点,概括得到夏季旱涝型,并揭示亚洲中、高纬西风分布具有一定的稳定性。夏季旱涝的环流特征在春季就有所反映。给出了一些可供长期预报参考的指标。 通过最近三年实况的检验,证明对于海河流域夏季旱涝的西风指数型是可用的,其前期指标是有预报参考价值的。
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| 收稿时间： | 1980/3/18 0:00:00 |
| 修稿时间： | 1980/6/20 0:00:00 |
THE ANALYSIS OF LONG-RANGE WEATHER PROCESS OF SUMMER DROUGHT AND FLOOD IN THE HAI RIVER BASIN |
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| Zhou Ming-sheng.THE ANALYSIS OF LONG-RANGE WEATHER PROCESS OF SUMMER DROUGHT AND FLOOD IN THE HAI RIVER BASIN[J].Acta Meteorologica Sinica,1981,39(3):321-331. |
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| Authors: | Zhou Ming-sheng |
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| Institution: | Tianjin Meteorological Observatory |
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| Abstract: | Based on the monthly 500 mb mean charts during the years of 1951-1976,we have analyzed the characteristics of general circulation at summer drought and flood occasions in the Hai River basin. There were obvious different characteristics between the drought and flood. It may be summarized types of drought and flood by the zonal index. The types and some indexes relating the long-range forecast of the drought and flood are given.It was verified that the types of drought and flood are feasible, and those indexes of the long-range forecast are usefulness through the inspection in 1977-1979. |
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