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Arctic Climate Change

PI: Asgeir Sorteberg
Institution: Bjerknes Centre for Climate Research
Future Sea Ice Changes
(Tore Furevik, Yongqi Gao, Asgeir Sorteberg)
This will address:
Multimodel variability and reduction of sea ice, investigate processes that governs the rate of reduction in the different models including changes in the heat transport into the Arctic, NAO and the local energy budget

Arctic Atmospheric Circulation, Temperature and Precipitation Changes
(Asgeir Sorteberg, Tore Furevik, Nils Gunnar Kvamstø)
This will address:
Multimodel variability and change in seasonal temperature and precipitation. Links to changes in heat transport, local circulation, the energy budget and sea ice changes.

Simulated Changes in the Arctic Ocean Fresh Water and Heat budgets - Storage and Transports
(Tore Furevik Ingo Bethke, Odd Helge Otterå)
This will address:
Multimodel variability long-term trends in the Arctic Ocean fresh water and heat budget.

Polar Mesocyclones in Future Climates
(Erik Kolstad, Tom Bracegirdle)
This will address:
Techniques for identifying polar mesocyclones in the North Atlantic, or favourable synoptic conditions for the formation of such, will be applied to the model data. A comparison with the control runs of the current climate will provide insight into the question of whether the frequency of such phenomena will increase in the future.
  • Sorteberg A. and Kvamstø N. G., 2006: The effect of internal variability on anthropogenic climate projections. Tellus A, 58, 565-574, doi:10.1111/j.1600-0870.2006.00202.x. Abstract. Full Article. Edit.
  • Sorteberg A., Kattsov V., Walsh J. E. and Pavlova T., 2007: The Arctic surface energy budget as simulated with the IPCC AR4 AOGCMs. Climate Dynamics, 10.1007/s00382-006-0222-9. Abstract. Full Article. Edit.

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