Estimating the uncertainties of satellite derived soil moisture at global scale oleh François Gibon, Arnaud Mialon, Philippe Richaume, Nemesio Rodríguez-Fernández, Daniel Aberer, Alexander Boresch, Raffaele Crapolicchio, Wouter Dorigo, Alexander Gruber, Irene Himmelbauer, Wolfgang Preimesberger, Roberto Sabia, Pietro Stradiotti, Monika Tercjak, Yann H. Kerr