Multimode/Multifrequency Low Frequency Airborne Radar Design

Table 1

Applications for low frequency airborne radars.

Application	Scope	Observation technique
Forest classification and biomass retrieval	Biosphere and bioclimatology studies, especially for terrestrial carbon cycle evaluation	Side-looking SAR
Ice sheets sounding	Glaciology studies to better describe ice sheet dynamics, which is connected with climate changes and sea level modifications	Nadir-looking SAR or cross-track interferometric SAR
Subsurface geomorphology, soil moisture estimation, permafrost, and sea salinity analysis	Climate modeling	Side-looking SAR (subsurface analyses may require nadir-pointing geometry)
Target detection in forest areas	Military application	Side-looking SAR