CN110533302A - 一种城市内涝模拟分析方法 - Google Patents
一种城市内涝模拟分析方法 Download PDFInfo
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Abstract
本发明公开了一种城市内涝模拟分析方法,城市的内涝积水预测建模:本发明的有益效果是对城市内涝模拟效果较好,有助于洪涝灾害的防控,可有效提高城市的信息预警能力。
Description
技术领域
本发明属于气象技术领域,涉及一种城市内涝模拟分析方法。
背景技术
近年来,极端气候不断出现,导致暴雨多发、城市内涝问题突出,严重威胁城市市民的生命财产安全。因此,建立城市降雨积水监测网络,实时了解城市的降雨和积水问题,预防城市内涝成为亟待解决的民生问题。建立城市内涝模拟***,有助于洪涝灾害的防控,可有效提高城市的信息预警能力。
发明内容
本发明的目的在于提供一种城市内涝模拟分析方法,本发明的有益效果是对城市内涝模拟效果较好,有助于洪涝灾害的防控,可有效提高城市的信息预警能力。
本发明所采用的技术方案是城市的内涝积水预测建模:
其中,yj(t)是雨量j站点t时刻的降雨量,n为受影响的雨量站点个数,θi,ρi是模型的参数,λji第j站点对应的参数,εi(t-1)是t-1时刻随机正太误差分布向量。
附图说明
图1是太白湖区5、10、15min积水预测值示意图。
具体实施方式
下面结合具体实施方式对本发明进行详细说明。
城市的内涝积水预测建模:
其中,yj(t)是雨量j站点t时刻的降雨量,n为受影响的雨量站点个数。
其中,θi,ρi是模型的参数,λji第j站点对应的参数。εi(t-1)是t-1时刻随机正太误差分布向量。
根据在济宁太白湖区采集的步长为6分钟的内涝积水对建立的模型的预测性能进行进行评价,评价结果如图1所示。相对平方误差RSE、方根误差RMSE和相对误差比率RE被应用于不同时间评价结果的准确度测量。从结果可以看出,建立的模型的预测准确度较高。太白湖的内涝积水时间跨度较长,历时4个小时,预测精度误差在3%左右。
以上所述仅是对本发明的较佳实施方式而已,并非对本发明作任何形式上的限制,凡是依据本发明的技术实质对以上实施方式所做的任何简单修改,等同变化与修饰,均属于本发明技术方案的范围内。
Claims (1)
1.一种城市内涝模拟分析方法,其特征在于:城市的内涝积水预测建模:
其中,yj(t)是雨量j站点t时刻的降雨量,n为受影响的雨量站点个数,θi,ρi是模型的参数,λji第j站点对应的参数,εi(t-1)是t-1时刻随机正太误差分布向量。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112528563A (zh) * | 2020-12-08 | 2021-03-19 | 丹华水利环境技术(上海)有限公司 | 一种基于svm算法的城市内涝预警方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112528563A (zh) * | 2020-12-08 | 2021-03-19 | 丹华水利环境技术(上海)有限公司 | 一种基于svm算法的城市内涝预警方法 |
CN112528563B (zh) * | 2020-12-08 | 2024-04-19 | 丹华水利环境技术(上海)有限公司 | 一种基于svm算法的城市内涝预警方法 |
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Application publication date: 20191203 |