Ice-Sheet and Sea-Level Changes

Author:

Alley Richard B.12345,Clark Peter U.12345,Huybrechts Philippe12345,Joughin Ian12345

Affiliation:

1. Department of Geosciences and Earth and Environmental Systems Institute, Pennsylvania State University, Deike Building, University Park, PA 16802, USA.

2. Department of Geosciences, Oregon State University, Corvallis, OR 97331, USA.

3. Alfred-Wegener-Institut für Polar- und Meeresforschung, Postfach 120161, D-27515 Bremerhaven, Germany.

4. Departement Geografie, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussel, Belgium.

5. Polar Science Center, Applied Physics Lab, University of Washington, 1013 NE 40th Street, Seattle, WA 98105, USA.

Abstract

Future sea-level rise is an important issue related to the continuing buildup of atmospheric greenhouse gas concentrations. The Greenland and Antarctic ice sheets, with the potential to raise sea level ∼70 meters if completely melted, dominate uncertainties in projected sea-level change. Freshwater fluxes from these ice sheets also may affect oceanic circulation, contributing to climate change. Observational and modeling advances have reduced many uncertainties related to ice-sheet behavior, but recently detected, rapid ice-marginal changes contributing to sea-level rise may indicate greater ice-sheet sensitivity to warming than previously considered.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference69 articles.

1. Ocean Freshening, Sea Level Rising

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3. Modelling Antarctic and Greenland volume changes during the 20th and 21st centuries forced by GCM time slice integrations

4. Threatened loss of the Greenland ice-sheet

5. P. Huybrechts, J. de Wolde, J. Clim.12, 2169 (1999).

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