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Correction for the effects of vegetation on the microwave emission of soils

Soil moisture information can be retrieved by passive microwave remote sensing. This is even possible when there is a vegetation canopy present, if the effects of the vegetation are corrected for. Vegetation correction algorithms must attempt to included all significant physical parameters yet they must also only require data that can be readily obtained. A simple correction algorithm has been proposed that relies on a single vegetation parameter, in this study we evaluated published data to determine the functional dependance of this parameter on vegetation characteristics.