Tropical cyclone eye fix using genetic algorithm ? YIP Chi Lap and WONG
نویسنده
چکیده
Weather forecasting often requires extensive computationally expensive numerical analysis on remote sensing data. For example, to determine the position of a tropical cyclone (the TC eye fix problem), computationally intensive techniques, such as the analysis of wind fields or processing of fields of motion vectors, are needed. Given the volume and rate of data to be processed, these problems are often solved using mainframe computers or clusters of computers for timely results to be given. In this paper, a template matching method is proposed to solve a subclass of TC eye fix problems. Together with the use of genetic algorithm, an accuracy within 0.139 to 0.257 degrees in latitude/longitude on the Mercator projected map is possible on a desktop computer at a rate of about 12 seconds per 6 minutes of radar data. The accuracy is comparable to the relative error of about 0.3 degrees given by different TC warning centers.
منابع مشابه
Dynamics and Thermodynamics Analysis of Tropical Cyclone Haiyan
Tropical cyclone Haiyan (TCH) that formed over the West Pacific Ocean during 3-11 November 2013 has been investigated using three datasets produced by Japan Meteorology Agency, ECMWF and NCEP. Strength of TCH has been studied using two synoptic parameters of 10-m wind velocity and mean sea level pressure (MSLP). Following, three dynamic parameters including vertical wind shear (VWSH) vector, he...
متن کامل3d.2 Temporal Clustering of Tropical Cyclone Occurrence on Intraseasonal Time Scales
Over the global tropics, the Madden-Julian Oscillation (Madden and Julian 1994, MJO) explains a significant amount of the variability in circulation and convection on intraseasonal time scales. However, significant variation exists in the spatial extent and seasonal occurrence of the MJO. While the upper-level divergent flow associated with MJO is often traced around the globe, the low-level wi...
متن کاملA novel web-based system for tropical cyclone analysis and prediction
A novel web-based system for tropical cyclone analysis and prediction Yee Leung a c , Man Hong Wong b , Ka Chun Wong b , Wei Zhang a & Kwong Sak Leung b a Department of Geography and Resource Management, The Chinese University of Hong Kong, Shatin, Hong Kong b Department of Computer Science and Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong c Institute of Environment, Energ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2004