ICE THICKNESS ESTIMATION METHOD BY SAR

摘要

PPROBLEM TO BE SOLVED: To provide a method for determining the ice thickness accurately from a back scattering coefficient by clarifying a mechanism of back scattering by paying attention to a characteristic of the sea ice having salinity or bubbles. PSOLUTION: In this method for estimating the ice thickness by remote sensing by a SAR, if the back scattering coefficient is smaller mainly because of surface scattering, proportionally at a portion having the larger thickness of the object ice, the object ice is determined to be first-year ice, and if the back scattering coefficient is larger mainly because of volume scattering, proportionally at a portion having the smaller thickness of the object ice, the object ice is determined to be many-year ice. Classification between the first-year ice and the many-year ice may be performed by setting a threshold of the back scattering coefficient at 10 dB. PCOPYRIGHT: (C)2006,JPO&NCIPI