Абстракт
Field Ka-band radar measurements of breaking wind waves, identified with synchronized video recordings, are presented. Separating video frames with and without breakers, the breaker-free (background) and breaker-disturbed surface normalized radar cross-section (NRCS) are estimated, and analyzed along long wave profiles. Breaker NRCS signals depict clear non-polarized features near long wave crests. Simultaneous breaker radar footprint fraction measurements enables the precise estimation of pure breaker NRCS, suitable to model both wave breaking and Doppler signatures
Ключевые слова
Backscatter, Doppler, Radar, Velocity, Wave breaking, Whitecap