ISMIP6 is a community effort that involves scientists interested in the polar regions, ranging from experts in polar remote sensing to modeling. If you would like to be involved in ISMIP6, please email A big thank you to our members contributing to the numerical simulations!

ISMIP6 Co-Chairs

Sophie Nowicki, University of Buffalo, USA – Co-Chair

Sophie Nowicki was appointed Professor of Geology at the University at Buffalo in September 2020. Prior to this, she was a Research Scientist in the Cryospheric Sciences Laboratory at NASA Goddard Space Flight Center, Greenbelt, MD. Her research interests focus on the studies of ice sheet dynamics, and their connections to the global climate and future sea-levels. Through applied mathematics, remote sensing observations and numerical modeling, her work spans the spectrum of local processes, such as understanding the physics of grounding lines, or the impact of our poor knowledge of bedrock topography on ice dynamics, to that of large scale continental ice sheet models.

While at NASA Goddard, Sophie was a science team member for Operation IceBridge, and co-lead the SeaRISE (Sea-Level Response to Ice Sheet Evolution), an international effort that investigated the sensitivity of the Greenland and Antarctic ice sheets to external environmental forcings. Sophie led an effort to couple an ice sheet model to the two Goddard climate models (GEOS-5 and ModelE), and an effort that investigates the feedbacks, processes and impacts of contemporary changes in the Arctic using satellite observations, ice sheet and climate models.

She is a member of the NASA Sea Level Change Team (N-SLCT), a member of the SEARCH Land Ice Action Team (LIAT), an executive committee member for the Ice Sheet Mass Balance Intercomparison Exercise phase 2 (IMBIE2), and a member of the Community Earth System Model (CESM) Scientific Steering Committee (SSC). She is the Division Head for Ice Sheets for the International Association of Cryospheric Sciences (IACS) and a member of the World Climate Research Programme (WCRP) Sea Level Change and Coastal Impacts Grand Challenge..

Tony Payne, University of Bristol, UK – Co-Chair

Tony Payne was appointed Professor of Glaciology in the School of Geographical Sciences, University of Bristol in August 2005 and is a co-director of CPOM.

Tony has a B.Sc. in Environmental Science from University of Stirling and a Ph.D. in Geography from the University of Edinburgh. His PhD was on the modelling of former ice sheets. Prior to joining CPOM, Tony was a Reader at the Department of Geography, University of Southampton. He has also worked as a Postdoctoral Research Fellow at the Department of Earth Sciences, University Bremen (Modelling of the late-Quaternary oceans) and the Department of Geology and Geophysics, University of Edinburgh (Modelling the former Scandinavian Ice Sheet).

Tony’s work centres on the development and application of numerical models of glacier and ice sheet flow. He is particularly interested in the evolution and dynamics of ice streams, and their effect on the stability of ice sheets.

Current research interests are:

  • Numerical modelling of the Greenland and Antarctic Ice Sheets.
  • Implementation of ice-flow models on parallel-processing computers.
  • Development of higher-order ice-flow models.
  • Integration of remote sensing data with numerical models of ice-mass flow using control methods.
  • Modelling of Pine Island Glacier, West Antarctica.

Steering Committee Members

Helene Seroussi, NASA Jet Propulsion Laboratory, USA

Helene Seroussi is a scientist in the Oceans and Ice group at Caltech’s Jet Propulsion Laboratory in Pasadena, California. After completing her Ph.D. in 2011 at Ecole Centrale Paris, France, she joined the Jet Propulsion Laboratory as a NASA postdoctoral fellow. She is a co-founder and co-developer of the Ice Sheet System Model (ISSM) since 2008.

Helene is interested in understanding the interactions of ice and climate by combining state-of-the-art numerical modeling with remote sensing and in situ data. She is interested in determining how the ice sheet, ice caps and mountain glaciers will respond to climate change in the coming century, and how they will affect global sea level.

Heiko Goelzer, NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, NO

Dr. Heiko Goelzer is a senior researcher at NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway. His scientific interest is on ice sheet modelling, sea-level changes and ice sheet-climate interactions. Heiko holds a M.Sc. in physics from Oldenburg University and a Ph.D. from Potsdam Institute for Climate Impact Research/ Potsdam University. Before joining NORCE he has worked as a Postdoctoral Researcher at the Institute for Marine and Atmospheric research Utrecht.

William Lipscomb, National Center for Atmospheric Research, USA

William Lipscomb is an ice and climate modeler in the Climate, Ocean, Sea-ice and Ice-sheet Modeling (COSIM) group at Los Alamos National Laboratory (LANL). His research focuses on the development of numerical models for predicting polar climate change and sea-level rise. He has led the effort to add a dynamic ice sheet model to the Community Earth System Model (CESM) and serves as co-chair of CESM’s Land Ice Working Group. He is a lead author of the Community Ice Sheet Model, for which he has recently written a suite of higher-order ice-flow solvers.

Bill holds a B.S. in Physics from Duke University, an M.A. in Physics and Philosophy from Oxford University, and a Ph.D. in Atmospheric Sciences from the University of Washington. After joining LANL as a postdoc in 1998, he spent several years developing LANL’s sea-ice model, CICE, before adding ice sheets to the COSIM family of models. He is now part of a team creating models of coupled land-ice/sea-ice/ocean interactions in the Antarctic.

Xylar Asay-Davis, Los Alamos National Laboratory, USA

Bio coming soon. Website.

Robin Smith, University of Reading, UK

Bio coming soon. Website.

Beata Csatho, The State University of New York at Buffalo, USA

Bio coming soon. Website.

Former Steering Committee Members

  • Eric Larour, NASA Jet Propulsion Laboratory, USA – Former Co-Chair
  • Ayako Abe Ouchi, The University of Tokyo, JP
  • Andrew Shepherd, University of Leeds, UK
  • Jonathan Gregory, University of Reading and Met Office Hadley Center, UK

ISMIP6 Participants

Greenland Standalone Ice Sheet Modeling

Antarctica Standalone Ice Sheet Modeling

Climate Modeling Centers

Climate modeling centers that have expressed an interest in ISMIP6.