Increased Ice Flow in Western Palmer Land Linked to Ocean Melting
PUBLICATIONS Geophysical Research Letters RESEARCH LETTER Increased ice flow in Western Palmer Land linked 10.1002/2016GL072110 to ocean melting Key Points: Anna E. Hogg1 , Andrew Shepherd1 , Stephen L. Cornford2,3 , Kate H. Briggs1 , • fi We provide the rst observation of 4,5 6 7 8 changing ice flow in Western Palmer Noel Gourmelen , Jennifer A. Graham , Ian Joughin , Jeremie Mouginot , 9 2 8,10 9 Land Thomas Nagler , Antony J. Payne , Eric Rignot , and Jan Wuite • Between 1992 and 2015, ice speed and discharge increased by 13% and 1Centre for Polar Observation and Modelling, School of Earth and Environment, University of Leeds, Leeds, UK, 2Centre for 3 15 km /yr, respectively Polar Observation and Modelling, School of Geographical Sciences, University of Bristol, Bristol, UK, 3Department of • The most affected glaciers are deeply Geography, College of Science, Swansea University, Swansea, UK, 4School of Geosciences, University of Edinburgh, grounded and flow into a thinning ice 5 6 fi shelf, in an ocean where circumpolar Edinburgh, UK, IPGS UMR 7516, Université de Strasbourg, CNRS, Strasbourg, France, Met Of ce Hadley Centre, Exeter, 7 8 deep water is shoaling Devon, UK, Applied Physics Laboratory, University of Washington, Seattle, Washington, USA, Department of Earth System Science, University of California, Irvine, California, USA, 9ENVEO IT GmbH, Innsbruck, Austria, 10Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA Supporting Information: • Supporting Information S1 • Figure S1 • Figure S2 Abstract A decrease in the mass and volume of Western Palmer Land has raised the prospect that ice • Figure S3 speed has increased in this marine-based sector of Antarctica.
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