首页|基于分布式水文模型的内蒙古自治区小流域洪水分析技术研究与应用

基于分布式水文模型的内蒙古自治区小流域洪水分析技术研究与应用

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山丘区在经历短时强降雨时,极易暴发山洪,由于内蒙古自治区小流域水文资料匮乏,导致其预报难度大.对内蒙古自治区全部小流域进行整合分析,重新划分了5 935个小流域分区作为洪水预报分析单元,针对不同下垫面和气候条件分析各小流域分区的产汇流特性,以分布式水文模型集群为主对小流域洪水进行分析研究.选取锡伯河试点流域进行应用分析,在该试点流域内洪水模拟预报精度良好,能够满足地区小流域洪水预报预警需求.此研究成果可逐步在内蒙古自治区范围内进行试用推广,为全区防洪减灾提供科学依据.
Research and application of flood analysis technology based on distributed hydrological modelsfor small watersheds in Inner Mongolia Autonomous Region
The hilly region in Inner Mongolia is prone to flash floods during short-duration heavy rainfall events.However,the scarcity of hydrological data for small watersheds has posed significant challenges for flood forecasting in this area.This study conducts an integrated analysis of all small watersheds in Inner Mongolia and re-divides 5 935 watersheds as analysis units for flood forecasting,analyzes the flow generation and confluence characteristics of each watershed according to different underlying surfaces and climatic conditions,and focuses on distributed hydrological model clusters analysis and research on watershed floods.The Xibe River pilot watershed is selected for application and analysis,demonstrating accurate flood simulation and forecasting within this test area and meeting the requirements for watershed flood forecasting and early warning.The findings of this study can be gradually applied and promoted within the Inner Mongolia region,providing a scientific basis for flood control and disaster reduction efforts in the whole region.

distributed hydrologic modelflood-forecastingsmall watershed divisionflash flood disasterInner Mongolia Autonomous Region

杨彬、包松林、聂帅、白音、刘子嘉、赵文贵

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内蒙古自治区水旱灾害防御技术中心,呼和浩特 010020

分布式水文模型 洪水预报 小流域分区 山洪灾害 内蒙古自治区

2024

中国防汛抗旱
中国水利学会

中国防汛抗旱

影响因子:0.286
ISSN:1673-9264
年,卷(期):2024.34(3)
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