Title :
A comparison of models for retrieving high wind speeds
Author :
He, Yijun ; Shen, Hui ; Guo, Jie ; Perrie, William
Author_Institution :
Chinese Acad. of Sci., Qingdao
Abstract :
Based on polarization ratio from ENVISAT ASAR, we compared the wind vectors retrieved from CMOD5 with alpha= 0.6, alpha = 0.5, our polarization ratio,VV HWGMF with our polarization ratio and HH HWGMF with results from QuikSCAT and buoy, respectively. We found that CMOD5 with alpha= 0.5 polarization ratio is best one for retrieving high wind speed from RADARSAT SAR; and error between QuikSCAT and HH HWGMF is the least. The polarization ratio and GMF for high wind need be improved.
Keywords :
remote sensing by radar; synthetic aperture radar; wind; Advanced Synthetic Aperture Radar; C-band geophysical model function; Environmental Satellite; HH HWGMF; QuikSCAT data; RADARSAT SAR; high wind speeds retrieval; polarization ratio; Geophysical measurements; Oceans; Polarization; Radar measurements; Radiometers; Sea measurements; Sea surface; Spaceborne radar; Wind forecasting; Wind speed; GMF; SAR; high wind vector; polarization ratio;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-1211-2
Electronic_ISBN :
978-1-4244-1212-9
DOI :
10.1109/IGARSS.2007.4423358
