Visualization of Storm Surge based on GIS Xifang JIN1,a, Fangzheng WANG2,b,Lili CHEN2,b,Jie LI2,b,Wei ZHAO2,b 1North China Sea Marine Forecasting Center of Station Oceanic Administration,North

Abstract. The core of this paper is the visualization of the multi-source data of the storm surge. The multi-source data includes the flow-field, water level, sea temperature, wave, wind-field and some other prediction factors. Around the visualization, some creative work has been done in this paper. Firstly, for the large amount and high density dynamic field data such as the flow field, wave direction, the wind-field, etc. In this paper, a uniform discretization algorithm is designed according to the elements of its characters. On one hand, it controls the display range of the factors. On the other hand, it controls the scale calibration. This algorithm is to make the power-field data to zoom steplessly. Secondly, as the storm surge data are almost long-time series data, this paper form the perspective of different design with two different solutions in order to better reflect the variation of storm surge with time, and the dynamic visualization of the prediction factors within a certain time sequence are realized