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SIMHYD模型在淮河流域的应用研究

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SIMHYD模型结构简单,参数较少,被广泛应用于流域月尺度和日尺度的径流模拟,由于模型结构中缺少流域汇流部分,尚无法满足小时尺度的洪水预报与模拟的需要.为此本文开展SIMHYD模型研究,针对模型结构存在不足,在SIMHYD模型基础上,设计对比4种不同汇流方案:①不考虑汇流(原始SIMHYD模型);②仅增加河道汇流;③仅增加坡面汇流;④同时增加河道汇流和坡面汇流.并在淮河王家坝区间流域开展小时尺度的洪水模拟应用研究.研究结果表明,相较于原始SIMHYD模型,增加汇流之后的SIMHYD模型模拟精度均有所提高,其中,同时增加河道汇流和坡面汇流的SIMHYD模型模拟精度提升最大.本研究通过改进SIMHYD模型的汇流部分,使该模型可以应用于小时尺度的洪水预报与模拟,且模拟精度较高.
SIMHYD Model Application in Huaihe River Basin
SIMHYD model has simple structure and few parameters,so it is widely used in monthly and daily scale watershed runoff simulation.Due to the lack of watershed confluence part in the model structure,SIMHYD model cannot meet the needs of hour-scale flood prediction and simulation.For this reason,SIMHYD model was studied in this paper.In view of the shortcom-ings of the model structure,four different confluence scenarios were designed and compared on the basis of SIMHYD model:(1)No confluence was considered(original SIMHYD model);(2)Only increase channel confluence;(3)Only increase the overland confluence;(4)At the same time increase the channel and overland confluence.And carry out the hour-scale flood simulation ap-plication research in Wangjiaba sub basin of Huaihe River.The research results show that compared with the original SIMHYD model,the simulation accuracy of SIMHYD model with addition of confluence is improved,and the simulation accuracy of SIM-HYD model with addition of channel confluence and overland confluence is improved the most.In this study,the SIMHYD model can be applied to hour-scale flood prediction and simulation by improving the confluence part of the model,and the simulation ef-fect is better.

SIMHYD modelgenetic algorithmflood forecastinghydrologic modelconfluence routing

章丽萍、蒋晓蕾、赫淑杰、付晓雷、胡乐怡

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扬州大学水利科学与工程学院,江苏扬州 225000

水利部水文气象灾害机理与预警重点实验室,南京信息工程大学,江苏南京 210098

山东省防汛抗旱物资储备中心,山东济南 250014

SIMHYD模型 遗传算法 洪水预报 水文模型 汇流演算

国家自然科学基金河海大学水灾害防御全国重点实验室"一带一路"水与可持续发展科技基金面上项目河海大学水灾害防御全国重点实验室"一带一路"水与可持续发展科技基金面上项目水利部水文气象灾害机理与预警重点实验室开放基金水利部水文气象灾害机理与预警重点实验室开放基金江苏省研究生科研与实践创新计划

5210903620224911112021490611HYMED202210HYMED202203KYCX23_3549

2024

10.19797/j.cnki.1000-0852.20230135

水文
水利部水文局 水利部水利信息中心

水文

CSTPCD北大核心
影响因子：0.742
ISSN：1000-0852
年,卷(期)：2024.44(2)
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