Observation of scattering and emission from fluctuating, rough surface of water basin by using a system of scatterometer-radiometer at X band

A system of combined scatterometer and radiometer at the X-band is developed at the WSRSC. It is employed to simultaneously observe the polarized backscattering and brightness temperature from randomly-perturbed, rough surface of the water basin. Randomly rough surface of water basin with the Pierson spectrum and different surface height are generated by the mechanical driver. Polarized backscattering (p,q=v,h) and brightness temperature T/sub Bp/(p=v,h) for different incident angles and surface heights are measured. It might be used to mimic random sea surface driven by sea surface winds. Functional dependence of /spl sigma//sub pq/ and T/sub Bp/ upon incident angle, surface height and other parameters are obtained. By using the two-scale model of rough sea surface, numerical simulation of /spl sigma//sub pq/ and T/sub Bp/ are also discussed comparing with the measurements.