| 长江流域“2017·07”暴雨洪水分析 |
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| 引用本文： | 尹志杰,王容,李磊,赵兰兰.长江流域“2017·07”暴雨洪水分析[J].水文,2019,39(2):86-91. |
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| 作者姓名： | 尹志杰 王容 李磊 赵兰兰 |
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| 作者单位： | 水利部信息中心(水利部水文水资源监测预报中心) |
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| 摘 要： | 2017年6月下旬至7月初,受持续强降雨影响,长江发生中游区域性大洪水。以实时报汛数据为基础,分析长江"2017·07"暴雨洪水特性,依据洪峰水位判断,强降雨导致洞庭湖水系湘江发生超历史最高水位特大洪水,资水、沅江发生超保证水位大洪水,洞庭湖超过保证水位;鄱阳湖水系乐安河上游发生超历史最高水位特大洪水,昌江、乐安河中下游、修水发生10a一遇较大洪水,鄱阳湖超过警戒水位;长江干流莲花塘以下江段全线超过警戒水位。在应对此次洪水过程中,长江上中游重点水库防洪效益十分明显,有效避免中游干流莲花塘至螺山江段超保,缩短洞庭湖城陵矶站超保时间6d左右。
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| 关 键 词： | 长江 2017年 7月 暴雨 洪水 |
| 收稿时间： | 2018/1/2 0:00:00 |
Analysis of Storm Flood Occurred in the Yangtze River Basin in July, 2017 |
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| YIN Zhijie,WANG Rong,LI Lei,ZHAO Lanlan.Analysis of Storm Flood Occurred in the Yangtze River Basin in July, 2017[J].Hydrology,2019,39(2):86-91. |
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| Authors: | YIN Zhijie WANG Rong LI Lei ZHAO Lanlan |
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| Abstract: | From late June to early July in 2017, the regional flood was led by the continuously intensive precipitation thatoccurred in the middle stream of the Yangtze River basin. Based on the real time flood data, this paper analyzed thecharacteristics of the "2017·07" flood in the Yangtze River. According to the judgment of flood peak water level , heavy rainfallhad caused catastrophic flood that exceeded measured maximum record in the Xiangjiang River of the Dongting Lake watershed;Zishui River and Yuanjiang River reached the water level at which the security of the rivers could not be guaranteed, so was theDongting Lake. For rivers that belong to the Poyang Lake watershed, water level in the upper stream of the Anle River exceededmeasured maximum record while the Changjiang River, Xiushui River and the middle and lower streams of the Anle River occurreda flood with a 10-year return period. The water level of the Poyang Lake exceeded the warning stage. For the mainstream of theYangtze River, water level in the stream below Lianhuatang water section exceeded the warning stage. However, some vitalreservoirs distributed along the upper and middle streams of the Yangtze River played effective roles in lowering the water level ofriver reach between Lianhuatang and Luoshan, and duration of water level exceeding the warning stage was shortened by 6 days atthe Chenglingji station in the Dongting Lake. |
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| Keywords: | Yangtze River the year of 2017 July storm flood |
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