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A note on SAR imagery of the ocean

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3 Author(s)
Larson, T.R. ; Ball Brothers Research Corp., Boulder, CO, USA ; Moskowitz, L. ; Wright, J.

An example of SAR imagery of the ocean surface including the Gulf Stream Boundary reported by Moskowitz [1] is used to discuss potential mechanisms of SAR image formation of the ocean. It is pointed out that images in addition to those due to modulation of surface scatterer strength may result from organized scatterer motions such as those due to currents or wave orbital velocities. The modulation of scattering cross section by large waves is expected to depend on the magnitude and direction of the wind, making the relationship between image strengths and wave amplitudes rather complicated. It is suggested that the effect of wave orbital accelerations upon azimuthal focus might provide a more direct measure of wave amplitude.

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Antennas and Propagation, IEEE Transactions on  (Volume:24 ,  Issue: 3 )