British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge, CB3 0ET United Kingdom
British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge, CB3 0ET United Kingdom ;
Jet Propulsion Laboratory, Mail Stop 300-235 4800 Oak Grove Drive, Pasadena, CA 91109 United States ;
Centre for Polar Observation & Modelling, Department of Space & Climate Physics, Pearson Building, University College London, Gower Street,, London, WC1E 6BT United Kingdom ;
Centre for Polar Observation & Modelling, Department of Space & Climate Physics, Pearson Building, University College London, Gower Street,, London, WC1E 6BT United Kingdom ;
University of Washington, Applied Physics Laboratory, 1013 N.E. 40th Street, Seattle, WA 98105 United States ;