Synthetic aperture radar (SAR) is one of important tools for earthquake, volcano, land subsidence, landslide, flood, tsunami, ocean wave, and environment variation researches. Furthermore interest in SAR is growing increasingly by new SAR application methods (e.g., utilization of ScanSAR, pixel offset method, etc.) and new satellite SAR missions such as ALOS follow-on (ALOS-2). However there are many problems for SAR utilization, e.g., atmospheric and ionospheric noise reductions, improvement of InSAR time-series analysis, crustal deformation modeling, and so on. This session aims to clarify these problems through discussions about papers on analysis, theory, and applications using SAR.