Radar Convective Storm Nowcasting using a Level Set Method
Convective storms are dangerous atmosphere hazards often accompanied by heavy rain and strong wind. Despite their short life time and small spatial scale, Doppler weather radars can provide a 3-D high temporal and spatial resolution of continuous measurement. Thus, a combination of identification, tracking and nowcasting of convective storms based on radar data is one of the most important meteorological methodologies. However, most forecasting algorithms only use extrapolating techniques and do not reflect storm shape changes, making forecasting result unreliable. This paper presents a new method, namely level set, to forecast storms with storm cell shape changes concerned. Experiments show that the proposed method can improve the forecasting precision in comparison with traditional methods.
Weather radar storm tracking nowcasting level set
Jinze Song Yuanxiang Li Qi Hu Wenfeng Qiao
School of Aeronautics & Astronautics, Shanghai Jiao Tong University, Shanghai, China 200240
国际会议
桂林
英文
1-6
2011-11-01（万方平台首次上网日期，不代表论文的发表时间）