| 松花江嫩江流域洪涝发生与流域内降水的关系 |
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| 引用本文： | 白人海,孙永罡. 松花江嫩江流域洪涝发生与流域内降水的关系[J]. 自然灾害学报, 2000, 9(2): 49-54 |
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| 作者姓名： | 白人海 孙永罡 |
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| 作者单位： | 黑龙江省气象台,黑龙江哈尔滨 150030 |
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| 基金项目： | 黑龙江省科学技术委员会“九五”重大科学研究项目撍苫ń璹嫩江流域防讯抗灾预警系统工程。 |
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| 摘 要： | 利用松花江、嫩江流域１９５１￣１９９５年期间的气象和水文资料，采用相关分析、经验正交分析等方法，讨论了该流域洪涝发生的规律及其与流域内降水分布的关系。文章指出，江流域的水闰变化有明显的阶段性，且具有全流域一致的特性，目前正处在８０年代以来洪涝较严重的阶段；嫩江流域降水异常偏多对松花江洪涝的影响比第二松花江的作用要大；１９９８年夏季，松花江、嫩江流域出现超历史纪录特大洪水的关键原因是嫩江流域６￣８月
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| 关 键 词： | 松花江 嫩江 洪涝 流域 降水 |
| 文章编号： | 1004-4574(2000)02-0049-06 |
| 修稿时间： | 1999-08-03 |
The relation of flood and precipitation in Songhuajiang and Nenjiang valley |
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| BAI Ren-hai,SUN Yong-gang. The relation of flood and precipitation in Songhuajiang and Nenjiang valley[J]. Journal of Natural Disasters, 2000, 9(2): 49-54 |
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| Authors: | BAI Ren-hai SUN Yong-gang |
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| Abstract: | With the meteorological and hydrographic data in Songhuajiang and Nenjiang valleyfrom 1951 to 1995, using correlation analysis and empirical orthogonal analysis, the rule ofthe flood and relation between flood and precipitation distribution in this region are dis-cussed. The results show that periodic change of water level is obvious in this region. Nowwater level is in the serious stage from 1980's. There are great relation between the water levelof flood period and the precipitation. The unusual precipitation of Nenjiang valley has greaterimpact than that of Second Songhuajiang valley. At the surnmr in 1998, Songhuajiang andNenjiang valley encountered the ghastly flood and the reason for that is the anomalousprecipitation great exceeding the historic maximum. |
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| Keywords: | flood occurrence precipitation distribution Songhuajiang and Nenjiang valley |
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