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Simulating Arctic Climate Warmth and Icefield Retreat in the Last Interglaciation
Bette L. Otto-Bliesner,1*Shawn J. Marshall,2Jonathan T. Overpeck,3Gifford H. Miller,4Aixue Hu,1CAPE Last Interglacial Project members
In the future, Arctic warming and the melting of polar glacierswill be considerable, but the magnitude of both is uncertain.We used a global climate model, a dynamic ice sheet model, andpaleoclimatic data to evaluate Northern Hemisphere high-latitudewarming and its impact on Arctic icefields during the Last Interglaciation.Our simulated climate matches paleoclimatic observations ofpast warming, and the combination of physically based climateand ice-sheet modeling with ice-core constraints indicate thatthe Greenland Ice Sheet and other circum-Arctic ice fields likelycontributed 2.2 to 3.4 meters of sea-level rise during the LastInterglaciation.
1 Climate and Global Dynamics Division, National Center for Atmospheric Research (NCAR), Boulder, CO 80305, USA. 2 Department of Geography, University of Calgary, Calgary, Alberta, T2N 1N4, Canada. 3 Institute for the Study of Planet Earth, Department of Geosciences, and Department of Atmospheric Sciences, University of Arizona, Tucson, AZ 85721, USA. 4 Institute of Arctic and Alpine Research and Department of Geological Sciences, University of Colorado, Boulder, CO 80309, USA.
* To whom correspondence should be addressed. E-mail: ottobli{at}ucar.edu
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In Science Magazine
LETTERS
Johannes Oerlemans, Dorthe Dahl-Jensen, Valérie Masson-Delmotte;, Jonathan T. Overpeck, Bette L. Otto-Bliesner, Gifford H. Miller, Richard B. Alley, Daniel R. Muhs, and Shawn J. Marshall (25 August 2006) Science313 (5790), 1043c.
[DOI: 10.1126/science.313.5790.1043c] |Full Text »|PDF »
REPORTS
Isabella Velicogna and John Wahr (24 March 2006) Science311 (5768), 1754.
[DOI: 10.1126/science.1123785] |Abstract »|Full Text »|PDF »
EDITORIAL
Donald Kennedy and Brooks Hanson (24 March 2006) Science311 (5768), 1673.
[DOI: 10.1126/science.1127485] |Summary »|PDF »
REPORTS
Jonathan T. Overpeck, Bette L. Otto-Bliesner, Gifford H. Miller, Daniel R. Muhs, Richard B. Alley, and Jeffrey T. Kiehl (24 March 2006) Science311 (5768), 1747.
[DOI: 10.1126/science.1115159] |Abstract »|Full Text »|PDF »|Supporting Online Material »
REPORTS
Göran Ekström, Meredith Nettles, and Victor C. Tsai (24 March 2006) Science311 (5768), 1756.
[DOI: 10.1126/science.1122112] |Abstract »|Full Text »|PDF »
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