System development for storm surge hazard assessment based on WebGIS for Tianjin Binhai New Area
Bo Cui , Zhengyin Zhou , Xiaoling Wang , Ruirui Sun , Xiaopei Sun
Transactions of Tianjin University ›› 2016, Vol. 22 ›› Issue (1) : 50 -56.
System development for storm surge hazard assessment based on WebGIS for Tianjin Binhai New Area
It is imperative to develop a risk assessment system for quickly predicting storm surge disaster due to the vulnerability of Tianjin Binhai New Area. The flood routing model with user-defined breaches was firstly established based on the seed spread algorithm in order to achieve a rapid forecasting of storm surge flood information. Furthermore, fuzzy mathematics was utilized to identify the storm disaster grade, and the hazard mapping was conducted to visually obtain the hazard spatial and temporal distribution. Finally, the flood routing visualization method was proposed based on numerical simulation of storm surge to achieve the reappearance scene of dynamic evolution process. The developed system can play a vital role in the management and decision-making of sea dyke mitigation engineering in Tianjin Binhai New Area.
storm surge disaster / hazard assessment system / WebGIS / Tianjin Binhai New Area
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