Context and objectives
For many agricultural and hydrologic applications, information on the soil moisture content in the top one meter layer is required. Although conventional methods for soil moisture determination are accurate, they are time and labour consuming and impractical over large areas, such as catchments. Over large areas information on the surface soil moisture content can be acquired through the use of microwave remote sensing. The main objective of this research is to derive a robust algorithm which retrieves root zone soil moisture information at the catchment scale from radar imagery.