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Shipboard X-Band radar images acquired on June 24th, 2009 are used to study internal solitary waves (ISWs) characteristics at northeast of the South China Sea (SCS). The studied images show one ISW in a packet. A methodology based on the Radon Transform (RT) technique is introduced to calculate internal wave parameters such as direction of propagation, internal wave velocity from backscatter image...
In this presentation, it is studied that the response of the Kuroshio to forcing provided by three wind products: Comprehensive Ocean-Atmosphere Data Set (COADS); Hellerman & Rosenstein objective analysis data set (HR) and observations made by the ERS radar scatterometer. The sea surface currents of the Kuroshio in the Luzon Strait in winter and summer simulated by the Princeton Ocean Model with...
In this presentation, the polarization ratios were calculated from AIRSAR polarimetric SAR data and ENVISAT ASAR dual-polarization data; and their empirical CC parameters which depend on incidence angle were obtained. Five C band HH polarization RADARSAT-1 SAR images are used to validate these polarization ratios and we found that the empirical parameter alpha = 0.5 is superior to other possible parameter...
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...
During the past decade, the ability to determine detailed information of ocean surface wind from Synthetic Aperture Radar (SAR) has been generally accepted. It is expected that SAR will provide all-day and all-weather wind parameters with high spatial resolution and high accuracy, which would provide valuable data to marine weather forecasters and SAR model designers. However, the methodology for...
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