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Estimating aircraft SAR response characteristics and ocean wave spectra in the Labrador Sea Extreme waves Experiment

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1 Author(s)
Tilley, D.G. ; Appl. Phys. Lab., Johns Hopkins Univ., Laurel, MD, USA

The Labrador Extreme Waves Experiment (LEWEX) was an international effort to assess methods of measuring and modeling the directional aspects of wind-generated ocean waves, especially their evolution in the presence of rapidly turning winds. The author describes data-processing methods that have been developed to derive estimates of two-dimensional wave height-variance spectra from the ocean imagery obtained in LEWEX by a C-band synthetic aperture radar (SAR) system aboard a Canadian CV-580 aircraft. SAR spectra at altitudes of 20000 and 12000 ft are compared for both large (~50°) and small (~25°) radar look angles. Independence spectral estimates from both a surface contour radar and a radar ocean wave spectrometer aboard a NASA aircraft are used to verify the surface wave spectrum

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Geoscience and Remote Sensing, IEEE Transactions on  (Volume:27 ,  Issue: 5 )