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Figure 2. Difference between "low-ice" and "highice"
years of simulated mean sea-ice drift velocity
during summer (June to September). For clarity
reasons, only every fifth difference vector is
displayed.
Karcher, M. J., Gerdes, R., Kauker, F., Köberle, C., Arctic
warming: Evolution and spreading of the 1990s warm
event in the Nordic seas and the Arctic Ocean, J.
Geophys. Res., 108, 3034,
doi:10.1029/2001JC001265, 2003.
Kauker, F., Gerdes, R., Karcher, M., Köberle, C., Lieser,
J. L., Variability of Arctic and North Atlantic sea ice:
A combined analysis of model results and
observations from 1978 to 2001, J. Geophys. Res.,
108, 3182, doi:10.1029/2002JC001573, 2003.
Rinke, A., Gerdes, R., Dethloff, K., Kandlbinder, T.,
Karcher, M., Kauker, F., Frickenhaus, S., Köberle, C.,
Hiller, W., A case study of the anomalous Arctic sea
ice conditions during 1990: Insights from coupled and
uncoupled regional climate model simulations, J.
Geophys. Res., 108, 4275,
doi:10.1029/2002JD003146, 2003.
In order to achieve a realistic regional distribution of sea-ice
in late summer, it requires that the coupled model
reproduces the observed atmospheric circulation during the
preceding summer months. Unrealistic sea-ice cover, in turn,
may favor model deviations in the atmospheric circulation,
but these deviations can clearly differ in their strength,
probably in consequence of regional feedback processes. It
is a future task to identify the key regions in the Arctic
where a more realistic simulation of such feedback
processes is important.
References
Christensen, J. H., Christensen, O. B., Lopez, P., van
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