COMPARISON BETWEEN VELOCITIES OF THE DRYGALSKI ICE TONGUE (ANTARCTICA) OBTAINED WITH COSMO-SKYMED AND ERS TANDEM PAIRS

摘要

The David glacier, with its floating ice tongue Drygalski, is the most important outlet glacier in Northern Victoria Land, Antarctica. We have compared displacement maps of the superficial velocities of the Drygalski ice tongue obtained from SAR scenes acquired in different years with different sensors. Displacement velocities achieved considering the coregistration offsets (coherence tracking), once validated with respect to GPS measurements, have then been used for baseline fit and for calibrating the unwrapped interferometric phase.