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Andrew Shepherd 1 , Eric Rignot 2 , Duncan Wingham 3 1 Scott Polar Research Institute

Image courtesy of Tom Kellogg. Ice Shelf Erosion in the Amundsen Sea. Andrew Shepherd 1 , Eric Rignot 2 , Duncan Wingham 3 1 Scott Polar Research Institute 2 Jet Propulsion Laboratory 3 University College London. 18 th September. WAIS 2003. Slide 1. Wingham et al., Science 1998.

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Andrew Shepherd 1 , Eric Rignot 2 , Duncan Wingham 3 1 Scott Polar Research Institute

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  1. Image courtesy of Tom Kellogg Ice Shelf Erosion in the Amundsen Sea Andrew Shepherd1, Eric Rignot2, Duncan Wingham3 1Scott Polar Research Institute 2Jet Propulsion Laboratory 3University College London 18th September WAIS 2003 Slide 1

  2. Wingham et al., Science 1998

  3. Rignot, Science, 1998

  4. Elevation change (m / year) -3 0 Ice speed (km / year) 0 2.5 Pine Island Glacier Thwaites Glacier Smith Glacier

  5. Vaughan et al., J. Climate, 1999

  6. Rignot and Jacobs, Science, 2002

  7. Jacobs et al., GRL, 1996 Grotov et al., JGR, 1998

  8. Courtesy J. Evans

  9. Russel-Head, Ann. Glac., 1980

  10. Russel-Head, Ann. Glac., 1980

  11. AS grounded ice mass imbalance = -36  8 Gt year-1 • AS ice shelf mass imbalance = -34  4 Gt year-1 • Ross Sea freshening = 45 Gt year-1 • Ocean or Glacier mass influx ? • 1C CDW infiltrates Pine Island Bay • Amundsen Sea gyre provides rapid transport • <∂h/∂t> <∂b/∂t>MAX • <∂h/∂t> ~ draft / T Summary

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