Modeling Recent Climate Variability in the Arctic Ocean
Author
Maslowski, W.
Newton, B.
Schlosser, P.
Semtner, A.
Martinson, D.
Date
2000Metadata
Show full item recordAbstract
Dramatic changes in the circulation of sea ice
and the upper layers of the Arctic Ocean have been reported
during the last decade. Similar variability is modeled using
a regional, coupled ice-ocean model. Realistic atmospheric
forcing elds for 1979-93 are the only interannual signal prescribed
in the model. Our results show large-scale changes
in sea ice and oceanic conditions when comparing results for
the late 1970s / early 1980s and the 1990s. We hypothesize
that these changes are in response to even larger scale atmospheric
variability in the Northern Hemisphere that can be
de ned as either the Arctic Oscillation or the North Atlantic
Oscillation. Agreement between the direction and scale of
change in the model and observations, in the absence of interannual
forcing from the global ocean thermohaline circulation,
suggests that the atmospheric variability by itself is
su cient to produce basin-scale changes in the Arctic Ocean
and sea ice system.
Rights
This 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.Collections
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