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Airborne SAR imagery of ocean surface waves obtained during LEWEX: some initial results

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4 Author(s)
Vachon, P.W. ; Canada Centre for Remote Sensing, Ottawa, Ont., Canada ; Olsen, R.B. ; Livingstone, C.E. ; Freeman, N.G.

The potential and the difficulties of using airborne synthetic-aperture radar (SAR) to study ocean surface waves are presented. Airborne C-band SAR imagery obtained with the real-time SAR processor on the Canada Centre for Remote Sensing (CCRS) Convair 580 during the Labrador Extreme Waves Experiment (LEWEX) shows waves propagating through the marginal ice zone as well as through open water regions. Examples are chosen to illustrate both coherent and noncoherent scene motion effects. Coherent scene motion effects include velocity bunching. acceleration defocus, and coherence time limitations. Noncoherent scene motion effects include scanning distortion and look misregistration. The slow platform velocity of airborne SAR precludes replication of spaceborne observations, largely due to coherent motion effects

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Geoscience and Remote Sensing, IEEE Transactions on  (Volume:26 ,  Issue: 5 )