Airborne Experiment on SAR based Observation of Snow Mass in Alpine Terrain

(1) Testing and evaluating methods for snow mass (SWE) retrievals in Alpine environment with focus on the repeat-pass interferometric SAR (RP-InSAR) approach. (2) Proof of concept for applying geosynchronous SAR systems for InSAR SWE retrieval, addressing the feasibility of the HydroTerra mission (C-band SAR) that was proposed to ESA in response to the Call for Earth Explorer 10 Mission Ideas - offering short repeat observation intervals (3) Assessing the performance of polar orbiting L-band InSAR for SWE retrievals, in support of preparations for the mission ROSE-L (Radar Observation System for Europe at L-band)