Crossref journal-article
American Meteorological Society
Journal of Climate (12)
Abstract

Abstract The sea ice simulation of the Community Climate System Model version 3 (CCSM3) T42-gx1 and T85-gx1 control simulations is presented and the influence of the parameterized sea ice thickness distribution (ITD) on polar climate conditions is examined. This includes an analysis of the change in mean climate conditions and simulated sea ice feedbacks when an ITD is included. It is found that including a representation of the subgrid-scale ITD results in larger ice growth rates and thicker sea ice. These larger growth rates represent a higher heat loss from the ocean ice column to the atmosphere, resulting in warmer surface conditions. Ocean circulation, most notably in the Southern Hemisphere, is also modified by the ITD because of the influence of enhanced high-latitude ice formation on the ocean buoyancy flux and resulting deep water formation. Changes in atmospheric circulation also result, again most notably in the Southern Hemisphere. There are indications that the ITD also modifies simulated sea ice–related feedbacks. In regions of similar ice thickness, the surface albedo changes at 2XCO2 conditions are larger when an ITD is included, suggesting an enhanced surface albedo feedback. The presence of an ITD also modifies the ice thickness–ice strength relationship and the ice thickness–ice growth rate relationship, both of which represent negative feedbacks on ice thickness. The net influence of the ITD on polar climate sensitivity and variability results from the interaction of these and other complex feedback processes.

Bibliography

Holland, M. M., Bitz, C. M., Hunke, E. C., Lipscomb, W. H., & Schramm, J. L. (2006). Influence of the Sea Ice Thickness Distribution on Polar Climate in CCSM3. Journal of Climate, 19(11), 2398–2414.

Authors 5
  1. Marika M. Holland (first)
  2. Cecilia M. Bitz (additional)
  3. Elizabeth C. Hunke (additional)
  4. William H. Lipscomb (additional)
  5. Julie L. Schramm (additional)
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Dates
Type When
Created 19 years, 2 months ago (June 7, 2006, 3 p.m.)
Deposited 4 years, 8 months ago (Dec. 7, 2020, 5:58 p.m.)
Indexed 1 week ago (Aug. 19, 2025, 6:35 a.m.)
Issued 19 years, 2 months ago (June 1, 2006)
Published 19 years, 2 months ago (June 1, 2006)
Published Online 19 years, 2 months ago (June 1, 2006)
Published Print 19 years, 2 months ago (June 1, 2006)
Funders 0

None

@article{Holland_2006, title={Influence of the Sea Ice Thickness Distribution on Polar Climate in CCSM3}, volume={19}, ISSN={0894-8755}, url={http://dx.doi.org/10.1175/jcli3751.1}, DOI={10.1175/jcli3751.1}, number={11}, journal={Journal of Climate}, publisher={American Meteorological Society}, author={Holland, Marika M. and Bitz, Cecilia M. and Hunke, Elizabeth C. and Lipscomb, William H. and Schramm, Julie L.}, year={2006}, month=jun, pages={2398–2414} }