Airborne laser altimetry and interferometric SAR measurements ofcanopy structure and sub-canopy topography in the Pacific northwest

摘要

The proposed TOPSAT global topography mission, currently undernconsideration by NASA and the Italian Space Agency, combines InSAR andnlaser altimeter instruments in order to produce a high-resolution,ndigital topographic database for the Earth's land surfaces (1). Thenresults presented demonstrate significant potential fornaltimeter-calibrated InSAR measurement of elevations and canopy heightsnover vegetated landscapes, as could be provided by the TOPSAT mission