Project Noordwijk. Part 1: Measurements of the Radar Backscatter Coefficient gamma (Sigma Deg) in 1977 and 1978

摘要

Radar backscatter measurements obtained from a sea platform are compared with airborne and spaceborne observations. A short range FM radar was mounted beside a television camera and directed into the prevailing winds. Upwind and crosswind data were collected, but downwind data are scarce, and more windspeed data are required. A systematic difference is observed between airborne and ground based data. The value of gamma is dependent on windspeed; dependency differs for the specular region (low incidence angles) and the diffuse (incidence angles ch110 45 deg).