Selected Services

Scientific Advisory Board, Helmholtz Centre for Ocean Research Kiel (GEOMAR), 2012 - 

Coordinating Lead Author, IPCC Assessment Report 5, Working Group I, Chapter 9: Evaluation of Climate Models, 2010 - 2013

Meteorological Office Scientific Advisory Committee (MOSAC), UK, 2009 - 

Review Board, Geophysical Fluid Dynamics Laboratory, Princeton NJ, 2009

Scientific Advisory Board (Chair since 2009), Leibniz Institute of Marine Science (IFM-GEOMAR), 2008 - 2011

Programme Advisory Group, NERC Thematic Programme "Rapid WATCH", 2008 - 

Advisory Board, Excellence Cluster "The Future Ocean", University of Kiel, 2007 - 2011

Scientific Advisory Committee, European Centre for Medium-Range Weather Forecasts (ECMWF), 2006 - 2010

Joint Scientific Committee of the World Climate Research Programme (Vice Chair since 2012), 2005 -

Scientific Advisory Board, Deutscher Wetterdienst (DWD), 2005 -

Lead Guest Editor, Carl Wunsch Special Issue of Journal of Physical Oceanography, 2005 - 2007

German National Committee for Global Change Research (NKGCF), Germany, 2006 - 2008
Scientific Advisory Board, Alfred Wegener Center, University of Graz, 2005 - 2006
CLIVAR International Scientific Steering Group, 2004 - 2007
Lead Organiser, Royal Society Discussion Meeting “Abrupt Climate Change”, 4/5 February 2003
Reviewer, Sonderforschungsbereich 460, Kiel, 2002
Organising Committee, WOCE Final Conference (November 2002)
Steering Group, Norwegian Ocean Climate Programme, 2002 - 2004
Steering Group, NERC Thematic Programme "Rapid Climate Change", 2001 - 2008
Chair of Research Development Committee, SOC, 2001 - 2003
Advisory Panel, Goddard Institute for Space Studies, 2000 - 2003
US National Research Council Panel, "Abrupt Climate Change", 2000 - 2002
Organising Committee, workshop on "Subtropical Overturning Cells", 2000
Chairman of NERC working group, town meeting, and writing team for successful Thematic Programme proposal, "Abrupt Climate Change and the Stability of the Ocean's Thermohaline Circulation", 1999 - 2000
National Science Foundation and NOAA Atlantic Review Panels, 1994, 1996
Co-Chair, US Ocean CLIVAR Modelling Implementation Steering Committee, 1995 - 1998
US WOCE Scientific Steering Committee, 1995 - 1999
US WOCE Indian Ocean Scientific Steering Committee, 1993 - 1997
Convener, The Oceans' Thermohaline Circulation and Interdecadal Climate Variability; AGU Spring Meeting, Baltimore, May 1994