1. Исследование изменчивости системы океан- лед Северного ледовитого океана на основе совместного моделирования Е.Н.Голубева и Г.А.Платов Institute of Computational Mathematics and Mathematical Geophysics, Novosibirsk, Russia

2. A schematic drawing of North Atlantic and Arctic Ocean circulation. Red arrows represent relatively warm water from lower latitudes entering the Arctic, while blue arrows represent the export of colder water from the Arctic.Shaded white shows the average area covered by sea ice. (Figure courtesy of G. Holloway, Institute of Ocean Sciences, Sidney, British Columbia. For more information see http://www-sci.pac.dfo-mpo.gc.ca/osap/).http://www-sci.pac.dfo-mpo.gc.ca/osap/

3. The difference in horizontal velocity distribution for the intermediate layer for World ocean model 1000year run. V/exp.2 – V/exp1. (Exp.1-rigid vertical wall at 73N, Exp.1-restoring to Levitus climatology in 65N-73N)

4. The difference in horizontal velocity distribution for the surface layer. V/exp.2 – V/exp1

5. Numerical domain: 20S Atlantic to Bering Strait spherical in Atlantic + reprojected bipolar grid from 65°N (Murray,1996) min spacing 35km in Arctic, max spacing 62km in Arctic, 1.0° in Atlantic, 33 vertical levels

6. Coupled ocean-ice numerical model 3D World Ocean Circulation Model of ICMMG (lab. Oceanography) based on FEM (z-koordinate) (Kuzin1982, Colubeva at al.1992, Golubeva,Platov2002 Ice model-CICE 3.0 ( elastic-viscous-plastic) W.D.Hibler,1979 E.C.Hunke, J.K.Dukowicz,1997 G.A.Maykut 1971 C.M.Bitz, W.H.Lipscom 1999 J.K.Dukowicz, J.R.Baumgardner 2000 W.H.Lipscomb, E.C.Hunke 2004

7. First model run: ocean model with surface restoring to Levitus climatology Second model run:

9. Major currents in the Arctic Ocean (AMAP)

10. Result from coupled ocean-ice model run. Ice thickness distribution.

11. Result from coupled ocean-ice model run. Velocity and temperature distribution.

12. Velocity and temperature zonal sections in Fram Strait

13. Velocity distribution at 550m

14. Velocity field with Bering Strait opened

15. Acknowledgements This investigation was supported by Russia Academy of Sciences,Grant N14.2, SB RAS,IG N 147 AOMIP