[1] Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Atmospher Environm Res IMK IFU, Kreuzeckbahnstr 19, D-82467 Garmisch Partenkirchen, Germany
[2] Univ Bonn, Dept Ecol & Nat Resources Management, Ctr Dev Res ZEF, Walter Flex Str 3,53113, D-53113 Bonn, Germany
[3] Univ Wurzburg, Inst Geog & Geol, Oswald Kulpe Weg 86, D-97074 Wurzburg, Germany
[4] Univ Munster, Inst GeoInformat, Heisenbergstr 2, D-48149 Munster, Germany
[5] Univ Bonn, Inst Geodesy & Geoinformat, Nussallee 1, D-53115 Bonn, Germany
[6] Martin Luther Univ Halle Wittenberg, Inst Geosci & Geog, Dept Sustainable Landscape Dev, Von Seckendorff Pl 4, D-06120 Halle, Germany