Show simple item record

dc.contributor.authorMaslowski, Wieslaw
dc.contributor.authorLipscomb, William H.
dc.date.accessioned2017-11-21T18:16:18Z
dc.date.available2017-11-21T18:16:18Z
dc.date.issued2002-04
dc.identifier.citationW. Maslowski, W.H. Lipscomb, "High resolutions simulations of Arctic sea ice, 1979-1993", Polar Research, v.22, no.1 (2003), pp. 67-74en_US
dc.identifier.urihttp://hdl.handle.net/10945/56229
dc.description.abstractTo evaluate improvements in modelling Arctic sea ice, we compare results from two regional models at 1/120 horizontal resolution. The first is a coupled ice-ocean model of the Arctic Ocean, consisting of an ocean model (adapted from the Parallel Ocean Program, Los Alamos National Laboratory [LANL]) and the "old" sea ice model. The second model uses the same grid but consists of an improved "new" sea ice model (LANL/CICE) with a simple ocean mixed layer. Both models are forced with European Centre for Medium-range Weather Forecasts reanalysis data for 1979-1993. A comparison of the two sea ice models focuses on the winter of 1987 to emphasize the internal ice stress and to minimize biases towards a particular Arctic climate regime. The "new" sea ice model gives improved ice deformation and drift fields. These improvements are associated at least in part with the multi-category representation of the ice thickness distribution and more realistic parameterization of the ice strength. Long, narrow features in ice divergence and shear fields resemble those observed in SAR imagery, except that their average width is overestimated, possibly due to insufficient horizontal resolution. We also compare the mean sea ice drift and its decadal variability in two "old" sea ice models at different horizontal resolutions: 18-km and 9-km. We find no significant change in ice drift between the two models, except in areas of significant ice-ocean interactions due to more realistic ocean currents and water mass properties in the 9-km model.en_US
dc.description.sponsorshipDepartment of energy Climate Change Prediction Programen_US
dc.description.sponsorshipNational Science Foundation Arctic System Science Programen_US
dc.description.sponsorshipOffice of Naval Research High Latitude Dynamics Program.en_US
dc.format.extent8 p.en_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.titleHigh resolution simulations of Arctic Sea ice, 1979-1993en_US
dc.typeArticleen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)en_US
dc.contributor.departmentOceanographyen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record