Hydrology Applications

The use of SAR for hydrology applications has a long history and has been extensively investigated for soil moisture estimation, snow mapping, and flood/wetland mapping. These applications have not realized operational or commercial success as of yet partly due to limitations of single channel SAR systems such as RADARSAT-1. Polarimetry has a potential to improve the use of SAR data for these applications helping to operationalize these applications. Some examples of this are provided in the following sections.