| 太湖流域降雨与太湖水位关系分析 |
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| 引用本文： | 章杭惠,刘曙光,季同德.太湖流域降雨与太湖水位关系分析[J].水文,2021,41(1):85-89,41. |
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| 作者姓名： | 章杭惠 刘曙光 季同德 |
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| 作者单位： | 同济大学土木工程学院;水利部太湖流域管理局;太湖流域管理局水文局（信息中心） |
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| 基金项目： | “十三五”国家重点研发计划项目“地域性村镇建筑洪灾灾变机理与区域防洪设计理论”(2018YFD1100401)。 |
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| 摘 要： | 太湖流域快速城镇化、水利工程建设等人类活动对流域水文过程产生了较大影响。基于1981~2018年太湖流域日降雨、太湖水位实测资料,分析了流域降雨与太湖水位涨幅关系,旨在揭示变化环境下该地区降雨与水位关系的变化特征及可能的驱动因素。研究表明,2000年以来太湖水位抬高趋势明显,但同等时段降雨量条件下对应的太湖水位涨幅有所下降,且降雨量越大,太湖水位涨幅减小的越明显;流域各时段降雨与太湖水位涨幅相关关系约0.9,流域10d雨强每增加50mm,太湖水位涨幅约16cm。该研究成果可为太湖水位的中长期预报,尤其是对入汛前、入梅前等关键时间节点的太湖水位调控、雨洪资源利用等流域管理工作提供参考。
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| 关 键 词： | 太湖 降雨 水位 降雨径流关系 |
Analysis on the Relationship between Rainfall of Taihu Basin and Water Level of Taihu Lake |
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| ZHANG Hanghui,LIU Shuguang,JI Tongde.Analysis on the Relationship between Rainfall of Taihu Basin and Water Level of Taihu Lake[J].Hydrology,2021,41(1):85-89,41. |
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| Authors: | ZHANG Hanghui LIU Shuguang JI Tongde |
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| Institution: | (College of Civil Engineering,Tongji University,Shanghai 200092,China;Taihu Basin Authority of Ministry of Water Resources,Shanghai 200434,China;Bureau of Hydrology(Information Center)of Taihu Basin Authority,Shanghai 200434,China) |
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| Abstract: | The rapid urbanization and water conservancy constructions in Taihu basin have had a great impact on the hydrological process of the whole area.Based on the data of precipitation in Taihu basin and the daily water level of Taihu lake during 1981-1999 and 2000-2018,the relationship between the lake’s water level and the regional precipitation were analyzed.The changing characteristics and the possible driving factors of this relationship within a changing environment were revealed.Results show that the water level of Taihu lake has increased significantly,but the corresponding water level rise in the lake has decreased under the same period’s precipitation since 2000.And it is investigated that the greater the precipitation is,the more significant of waterlevel rise in Taihu lake will decrease.The correlation coefficient between the precipitation intensity of the basin and the water-level rise of Taihu Lake has reached 0.9.When the precipitation intensity increased by 50 mm in 10 days,the water level in Taihu Lake increases by about 16 cm as a response. |
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| Keywords: | Taihu Lake precipitaiton water level rain-runoff relationship |
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