Bayesian approaches 2 Bayesian methodology 2 Bayesian networks 2 Bayesian retrieval 2 Bayesian retrieval approaches Error sources 2 Forward models 2 Geologic models 2 Moisture determination 2 Radar remote sensing 2 Remote sensing 2 Retrieval models 2 Retrieval procedures 2 SAR Images 2 SAR data 2 Soil moisture 2 Soil moisture retrievals 2 Soil parameters 2 Sources of uncertainty 2 Space optics 2 Speckle noise 2 Synthetic aperture radar 2 Unbiased estimator 2 radar remote sensing 2