Analyzing the Vegetation Parameterization in the TU-Wien ASCAT Soil Moisture Retrieval. - Mariette Vreugdenhil; Wouter A. Dorigo; Wolfgang Wagner 001; Richard A. M. de Jeu; Sebastian Hahn 002; Margreet J. E. van Marle (IEEE Trans. Geosci. Remote. Sens., 2016)