1. German Remote Sensing Data Center (DFD), Earth Observation Center (EOC), German Aerospace Center (DLR), 82234 Wessling, Germany
2. Department of Earth Physics Thermodynamics, University of Valencia, 46100 Burjassot, Spain
3. Chair of Remote Sensing, Institute of Geography and Geology, Julius-Maximilians-Universität Würzburg, 97074 Würzburg, Germany