Performance inter-comparison of soil moisture retrieval models for the MetOp-A ASCAT instrument. - Alexander Gruber; Simonetta Paloscia; Emanuele Santi; Claudia Notarnicola; Luca Pasolli; Tuomo Smolander; Jouni Pulliainen; Heidi Mittelbach; Wouter Dorigo; Wolfgang Wagner 001 (IGARSS, 2014)