Community Services and Scientific Editing

Membership in National and International Committees

2012-2015 Member, IGBP Science Committee
2010- Member, Scientific Advisory Board, Research Center Biodiversity and Climate (BiK-F)
2009- Member, since 2012 Chair, Scientific Advisory Board, Alfred-Wegener-Institute for Polar and Marine Research, Bremerhaven
2008-2014 Member, Scientific Committee for the Bayer Climate Award
2008-2010 Member, MISTRA SWECIA Scientific Reference Group, Sweden
2008-2010 Member, Wissenschaftlicher Beirat, Nordwest-Verbund Meeresforschung, Bremen
2008-2015 Member, Süring Foundation, Board of Trustees
2007-2014 Chair, Excellence Cluster on Integrated Climate System Analysis and Prediction
2006-2011 Chair of the COSMOS (community Earth System Models) network
2005-2008 Vice Chair, Süring Foundation
2003-2009 Member of the DFG (German Science Foundation) Senate and Joint Committee (Hauptausschuss)
2003-2008 Chair of the German Meteorological Society (Deutsche Meteorologische Gesellschaft), since 2006: Vice Chair
2003-2006 Member of the steering committee (Präsidium) of the GeoUnion - Alfred Wegener foundation (Alfred Wegener Stiftung)
2001-2006 Member of the National Committee on Global Change Research (German Science Foundation - DFG)
2000-2005 Member of the IGBP - GAIM task force (International Geosphere-Biosphere Programme - Global Analysis, Integration and Modelling)
2000-2003 Member of the CLIVAR-PAGES task force (CLIVAR: Climate Variability, core project of the World Climate Research Programme, PAGES: Past Global Changes, an IGBP- core project)
1999-2003 Member of BMBF-Sachverständigenkreises Globale Umweltaspekte (scientific advisory of the federal ministry of education and research on questions related to global change)
1999-2002 Chair of the Section (Zweigverein) Berlin / Brandenburg of the German Meteorological Society (Deutschen Meteorologischen Gesellschaft)
1998-2004 Member of the research advisory committee of IGES (Institute for Global Enviromental Strategies) Kanagawa, Japan
1998-2001 Member of the Europäische Akademie zur Erforschung von Folgen wissenschaftlich- technischer Entwicklungen, Bad Neuenahr-Ahrweiler
1997-2002 Member of the scientific steering committee of BAHC (Biological Aspects of the Hydrological Cycle - an IGBP core project)
1996-2001 Scientific advisor (climate) of World Wide Fund WWF, Germany
1995-1998 Member of the steering committee of the IIASA (International Institute of Applied System Analysis, Laxenburg, Austria) Land Use Change Project
1995-1998 Member of the advisory board of LITFASS (Lindenberg Inhomogenous Terrain - Fluxes between Atmosphere and Surface - a Long-term Study) - a project of the German Weather Service, DWD
1993-1997 Member of the BALTEX (Baltic Sea Experiment) - a core project of the Global Energy and Water Cycle Experiment GEWEX within the World Climate Research Programme WCRP - Working Group on Process Studies

Scientific Editing

2010- Co-editor (editorial board) Earth System Dynamics (EGU Journal)
2009- Co-editor (editorial board) "Climate of the Past" (EGU Journal)
2006- Editorial board of Meteorologische Zeitschrift
2005- Co-editor-in-chief Climate of the Past
2001-2005 Co-editor of Meteorologische Zeitschrift
2001 Editorial board of Climate Dynamics
1999-2001 Editorial board of Global Ecology and Biogeography
1995-1997 Editorial board of Geowissenschaften (Journal of the Alfred Wegner Stiftung)
1989-1995 Editorial board of Boundary-Layer Meteorology