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http://dx.doi.org/10.5394/KINPR.2007.31.1.035

Study on the Extraction of Ocean Wind, Wave and Current using SAR  

Kang, Moon-Kyung (Dept. of Geophysics, Kangwon National University)
Park, Yong-Wook (Dept. of Geophysics, Kangwon National University)
Lee, Moon-Jin (Maritime and Ocean Engineering Research Institute)
Lee, Hoon-Yol (Dept. of Geophysics, Kangwon National University)
Publication Information
Journal of Navigation and Port Research / v.31, no.1, 2007 , pp. 35-42 More about this Journal
Abstract
Recently satellite SAR techniques have become essential observation tools for various ocean phenomena such as wind, wave, and current. The CMOD4 and CMOD-IFR2 models are used to calculate the magnitude of wind at SAR resolution with no directional information. Combination of the wave-SAR spectrum analysis and the inter-look cross-spectra techniques provides amplitude and direction of the ocean wave over a square-km sized imagette, The Doppler shift measurement of SAR image yields surface speed of the ocean current along the radar looking direction, again at imagette resolution. In this paper we report the development of a SAR Ocean processor(SOP) incorporating all of these techniques. We have applied the SOP to several RADARSAT-1 images of the coast of Korean peninsula and compared the results with oceanographic data, which showed reliability of spaceborne SAR-based oceanographic research.
Keywords
Ocean wind; Ocean wave; Ocean current; CMOD4; CMOD-IFR2; Wave-SAR transform; Inter-look cross-spectra; Doppler shift;
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