Global Analysis of Envisat Ku and S Band Sigma0 over All Surfaces
نویسنده
چکیده
This paper presents an analysis of the global behaviour of Envisat sigma0 at both Ku and S band, including both temporal and spatial variation. Particular emphasis is placed on desert surface response and results are shown in support of the EarthCARE Cloud Profiling Radar calibration study. Burst echo data sets are included to illustrate the high spatial frequency behaviour of sigma0 at Ku band. The results demonstrate the stability and superb quality of Envisat sigma0 at both frequencies, including identification and analysis of regions where differences are observed in the response of the surface at the two frequencies of illumination.
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