Scientific Steering Group

The GEWEX Scientific Steering Group (SSG) guides the formation of GEWEX’s scientific program, and is comprised of scientists from across the world who study issues related to the global water and energy cycles. In addition to monitoring and shaping the course for GEWEX, the SSG briefs the Joint Steering Committee of our parent organization, WCRP, on progress made within GEWEX and general advances in understanding in our areas of scientific expertise.

Information on current and past SSG meetings can be found at GEWEXevents.org.


Scientific Steering Group (SSG)

SSC MembersOrganizationYear of Appointment

Jan Polcher (Co-Chair)

Director of Research, Centre National de la Recherche Scientifique (CNRS) Laboratoire de Météorologie Dynamique, Institut Pierre Simon Laplace (IPSL)
Palaiseau Cedex, France
2018

Xubin Zeng (Co-Chair)

Climate Dynamics and Hydrometeorology Center University of Arizona
Tucson, AZ, USA
2021

Myoung-Hwan Ahn

Department of Climate and Energy Systems Engineering EWHA Womans University
Seoul, Republic of Korea
2022

Susanne Crewell

Institute for Geophysics and Meteorology, University of Cologne Center for Earth System Observation and Computational Analysis (CESOC)
Cologne, Germany
2023

Qingyun Duan

College of Hydrology and Water Resources Hohai University
Beijing, China
2018

Richard Forbes

European Centre for Medium-Range Weather Forecasts (ECMWF)


Reading, United Kingdom
2024

Michael G. Bosilovich

Global Modeling and Assimilation Office NASA's Goddard Space Flight Center
Greenbelt, Maryland USA
2017

Li Jia

Aerospace Information Research Institute (AIR),
Chinese Academy of Sciences (CAS)


Beijing, China
2024

Benjamin Lamptey

Suez Consulting Company
Ghana
2022

Linda Mearns

National Center for Atmospheric Research (NCAR)
Boulder, CO, USA
2023

Maria Piles Guillem

Universitat de València
València, Spain
2022

L. Ruby Leung

Pacific Northwest National Laboratory (PNNL)
Richland, WA, U.S.A.
2022

Gavin Schmidt

NASA Goddard Institute for Space Studies


New York, NY, USA
2024

Anna Stewart Ibarra

Inter-American Institute for Global Change Research (IAI)
Montevideo, Uruguay
2023

Bob Su

Faculty of Geo-Information Science and Earth Observation (ITC) University of Twente
Enschede, The Netherlands
2019

Former Scientific Steering Group (SSG)

SSC MembersOrganizationPeriod of Appointment

Lisa Alexander

Climate Change Research Centre University of New South Wales
Sydney NSW, Australia
2015 - 2018

Gianpaolo Balsamo

Coupled Processes, Earth System Model (CP/ESM) European Centre for Medium-range Weather Forecasts (ECMWF)
Reading, UK
2017

Paul Dirmeyer

Department of Atmospheric, Oceanic and Earth Sciences George Mason University
Fairfax, VA, USA
2017-2021

Gabi Hegerl

School of GeoSciences University of Edinburgh
Edinburgh, Schotland
2019–2022

Sonia I. Seneviratne

Institute for Atmospheric and Climate Science ETH Zurich, Land-Climate Dynamics
2014 - 2018

Branka Ivankan-Picek

Meteorological and Hydrological Service
Zagreb, Croatia
2017-2020

Christian Jakob

School of Earth, Atmosphere, and Environment Monash University
Clayton (VIC), Australia
2019–2022

Germán Poveda

Department of Geosciences and Environment Universidad Nacional de Colombia
Medellín, Colombia
2015–2022

B.J. Sohn

School of Earth and Environmental Science Seoul National University
Seoul, South Korea
2018-2021

Graeme Stephens

Director, Center for Climate Sciences NASA Jet Propulsion Laboratory
Pasadena, CA, USA
Co-chair 2014–2021 member 2021–2022

Remko Uijlenhoet

Hydrology and Quantitative Water Management Group Department of Environmental Sciences Wageningen University
The Netherlands
2014 - 2018

Nathalie de Noblet-Ducoudré

Le Laboratoire des Sciences du Climat et de l'Environnement
Gif-sur-Yvette, France
2015 - 2018

International GEWEX Project Office
111 Research Hall, Mail Stop 6C5
4400 University Drive
Fairfax, VA 22030 USA

contact@gewex.org

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