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GEOPHYSICAL RESEARCH LETTERS, VOL. 29, NO. 14, 1677, doi:10.1029/2002GL014717, 2002

Arctic Oscillation variability generated through inter-ocean interactions

Mihai Dima

Faculty of Physics, University of Bucharest, Bucharest, Romania


Norel Rimbu

Department of Geoscience, Bremen University, Bremen, Germany


Ioana Dima

Department of Atmospheric Sciences, University of Washington, Seattle, Washington, USA


Abstract

We investigate the structure of the Northern Hemisphere atmospheric circulation anomaly patterns associated with the dominant mode of interannual variability in the Tropical Pacific and the dominant mode of quasi-decadal variability in the Atlantic basin. There is evidence that the superposition of the atmospheric patterns associated with these modes possesses an Arctic Oscillation-like structure. We suggest that part of the Arctic Oscillation variability is due to interactions between coupled ocean-atmosphere modes originating in the Tropical Pacific and Atlantic basins.

Published 20 July 2002.

Index Terms: 4215 Oceanography: General: Climate and interannual variability (3309); 3309 Meteorology and Atmospheric Dynamics: Climatology (1620); 3319 Meteorology and Atmospheric Dynamics: General circulation.

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Citation: Dima, M., N. Rimbu, and I. Dima (2002), Arctic Oscillation variability generated through inter-ocean interactions, Geophys. Res. Lett., 29(14), 1677, doi:10.1029/2002GL014717.