• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Flood Forecasting and Water Resources Assessment for IAHS(International Association of Hydrological Sciences)-PUB >Time Variable Instantaneous Unit Hydrograph Watershed Concentration Model Based on Entropy-weighted Multi-objective Decision Method
【24h】

Time Variable Instantaneous Unit Hydrograph Watershed Concentration Model Based on Entropy-weighted Multi-objective Decision Method

机译：基于熵权多目标决策方法的时变瞬时单位水位流域汇流模型

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Based on Nash instantaneous unit hydrograph (IUH), a new model of time variable instantaneous unit hydrograph (TVIUH) was established in the paper. In this model, nonlinear factors including net rainfall intensity and spatial nonuniform distribution have been taken into consideration. And, as for the multi-objective decision-making(MODM) problem that requiring flood peak discharge, time to peak and deterministic coefficient meet the requirements simultaneously, a MODM method based on entropy-weighted was introduced into the model. And taking floods of Guanyinge-Shenwo cascade reservoir for example, flood forecast computation has been investigated and the comparison between results of TVIUH model and that of IUH model have been done in details. The results shown that TVIUH model based on entropy-weighted MODM method could take good account of the nonlinear factors of the runoff-flow and multi-objective problem. The whole precision of flood forecast was improved compared with the results obtained from IUH.
机译：基于纳什瞬时单位水位图（IUH），建立了时变瞬时单位水位图（TVIUH）的新模型。在该模型中，考虑了净降雨强度和空间非均匀分布等非线性因素。并且，针对需要洪峰流量，到达峰值时间和确定性系数同时满足要求的多目标决策问题，将基于熵权的MODM方法引入模型。并以观音阁—神窝梯级水库洪水为例，进行了洪水预报计算，并对TVIUH模型结果与IUH模型结果进行了比较。结果表明，基于熵权MODM方法的TVIUH模型可以很好地考虑径流和多目标问题的非线性因素。与IUH相比，洪水预报的整体精度有所提高。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号