Forward models 4 Remote sensing 4 Retrieval models Soil moisture 4 Soil moisture retrievals 4 AQUARIUS 2 Aquarius 2 Bayesian approaches 2 Bayesian methodology 2 Bayesian networks 2 Bayesian retrieval 2 Bayesian retrieval approaches 2 Canopy structure 2 Computer simulation 2 Dense vegetation 2 Electromagnetic modeling 2 Error sources 2 Experiments 2 Geologic models 2 Geology 2 Instrumental noise 2 Land cover 2 Land-cover types 2 Moisture determination 2 OSSE 2 Observing system simulation experiments 2 Radar remote sensing 2 Radiative transfer 2 Radiative transfer theory 2 Retrieval procedures 2