Effect of sedimentation on ice-sheet grounding-line stability

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Sedimentation filling space beneath ice shelves helps to stabilize ice sheets against grounding-line retreat in response to a rise in relative sea level of at least several meters. Recent Antarctic changes thus cannot be attributed to sea-level rise, strengthening earlier interpretations that warming has driven ice-sheet mass loss. Large sea-level rise, such as the ≈100-meter rise at the end of the last ice age, may overwhelm the stabilizing feedback from sedimentation, but smaller sea-level changes are unlikely to have synchronized the behavior of ice sheets in the past.

Original languageEnglish (US)
Pages (from-to)1838-1841
Number of pages4
Issue number5820
StatePublished - Mar 30 2007

All Science Journal Classification (ASJC) codes

  • General


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