Research on real time urban flooding warning base on radar extrapolation - Details

Author：

Tang, Ying (Tang, Ying.) | Zhang, Yongxiang (Zhang, Yongxiang.) (Scholars：张永祥) | Wang, Hao (Wang, Hao.) | Liu, Yu (Liu, Yu.)

Indexed by：

EI Scopus PKU CSCD

Abstract：

To　improve　the　forecast　period　of　real-time　urban　flooding　warning,　a　real　time　warning　simulation　method　based　on　radar　technology　was　proposed.　The　base　reflectivity　of　feature　time　was　predicted　and　the　optimized　Z-R　relationship　was　used　to　compute　rainfall.　Then　the　rainfall　in　the　future　was　obtained　and　taken　as　an　input　in　the　hydraulic　model.　By　real　time　simulation,　the　urban　flooding　in　the　feature　was　obtained　and　the　urban　flooding　real　time　warning　was　realized.　The　result　shows　that　urban　flooding　distribution　can　be　obtained　through　the　urban　flooding　real　time　warning　based　on　radar　technique,　and　more　than　50　minutes＇　forecast　period　can　be　saved.　Compared　with　rain　gage-based　real　time　simulation,　the　length　of　forecast　period　can　be　reduced　by　5-25　minutes,　thus　more　time　was　provided　for　flood　prevention　department.　The　rainfall　spatial　distribution　was　taken　as　input　in　this　method.　Compared　with　rain　gage　input,　rainfall　spatial　distribution　was　taken　into　full　consideration.　©　2019,　Editorial　Board　of　Journal　of　Harbin　Institute　of　Technology.　All　right　reserved.

Keyword：

Floods Rain Rain gages Hydraulic models Spatial distribution Extrapolation Forecasting Radar Flood control

Author Community：

[ 1 ] [Tang, Ying]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Tang, Ying]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Zhang, Yongxiang]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Zhang, Yongxiang]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Wang, Hao]China Institute of Water Resources and Hydropower Research, Beijing; 100038, China
[ 6 ] [Wang, Hao]State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing; 100038, China
[ 7 ] [Liu, Yu]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
[ 8 ] [Liu, Yu]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China

Reprint Author's Address：

[tang, ying]key laboratory of beijing for water quality science and water environment recovery engineering, beijing university of technology, beijing; 100124, china;;[tang, ying]college of architecture and civil engineering, beijing university of technology, beijing; 100124, china

Email：

sugar881201@163.com

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