Title :
The wind speed estimate of typhoon MEGI by dual-frequency altimeter JASON1
Author :
Zhou, Xuan ; Yang, Xiaofeng ; Li, Ziwei ; Bi, Haibo
Author_Institution :
Inst. of Remote Sensing Applic., Beijing, China
Abstract :
Dual-frequency altimeter JASON1 can provide very high resolution measurements of surface wind speed, significant wave height and rain rate. But in extreme weather events such as typhoon, a wide range of rain will occur, which influences the transmission of microwave signals. We analyze the rainfall effect on normalized radar cross section and the difference between C and Ku band corresponding to the rain rate, and then propose a method to correct the rainfall and estimate the speed wind. Finally, the results are compared to the detailed track information and a good agreement is found.
Keywords :
altimeters; atmospheric techniques; meteorological instruments; rain; storms; wind; Typhoon MEGI; dual-frequency altimeter JASON1; high resolution measurement; microwave signal transmission; normalized radar cross section; rain rate; surface wind speed estimation; wave height analysis; Radar tracking; Rain; Sea measurements; Sea surface; Surface waves; Typhoons; Wind speed; Dual-frequency altimeter; rain; typhoon; wind speed;
Conference_Titel :
Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9172-8
DOI :
10.1109/RSETE.2011.5965139
