1. Earth Observation Center, EOC of the German Aerospace Center, DLR, Oberpfaffenhofen, 82234 Wessling, Germany
2. Department of Remote Sensing, University of Wuerzburg, Institute of Geography and Geology, 97070 Wuerzburg, Germany
3. Institute for Remote Sensing and Digital Earth, RADI, Chinese Academy of Sciences, CAS, 100094 Beijing, China
4. Freelance Remote Sensing Consultant, 86916 Kaufering, Germany
5. Max Planck Institute for Ornithology, 78315 Radolfzell, Germany