Simulation de la rétrodiffusion radar du manteau neigeux. Comparaison avec les données d'un radar SOL et TSX (projet NoSREx)
Résumé
This paper presents a multilayer snowpack Electromagnetic Backscattering Model (EBM), based on Dense Media Radia- tive Transfer (DMRT). This model is capable of simulating the interaction of electromagnetic waves (EMW) at X-band and Ku-band frequencies with multilayer snowpack. The air- snow interface and snow-ground backscattering components are calculated using the Integral Equation Model (IEM), Fung et al. [1], whereas the volume backscattering component is calculated by the solution of Vector Radiative Transfer (VRT) equation at order 1. We have applied these models using measurement data from NoSREx report [2], which includes SnowScat data in X-band and Ku-band, TerraSAR-X acqui- sitions and snowpack stratigraphic profiles. The results of model simulations show consistency with the radar observa- tions, and therefore allow the EBM to be used in various ap- plications, such as data assimilation [3],
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