Professor of Polar Meteorology, Utrecht University

Department of Earth System Science, University of California Irvine

University of Lincoln

Ohio State University

Professor of Physical Geography

Niels Bohr Institute, University of Copenhagen

Professor, Scripps Institution of Oceanography, UCSD

Jackson School of Geosciences, Institute for Geophysics, University of Texas at Austin

Centre for Ice and Climate

Woods Hole Oceanographic Institution