The Atlantic Multidecadal Oscillation without a role for ocean circulation

Author:

Clement Amy1,Bellomo Katinka1,Murphy Lisa N.1,Cane Mark A.2,Mauritsen Thorsten3,Rädel Gaby3,Stevens Bjorn3

Affiliation:

1. Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, USA.

2. Lamont-Doherty Earth Observatory of Columbia University, New York, NY, USA.

3. Max Planck Institute for Meteorology, Hamburg, Germany.

Abstract

Ocean circulation changes not needed What causes the pattern of sea surface temperature change that is seen in the North Atlantic Ocean? This naturally occurring quasi-cyclical variation, known as the Atlantic Multidecadal Oscillation (AMO), affects weather and climate. Some have suggested that the AMO is a consequence of variable large-scale ocean circulation. Clement et al. suggest otherwise. They find that the pattern of AMO variability can be produced in a model that does not include ocean circulation changes, but only the effects of changes in air temperatures and winds. Science , this issue p. 320

Funder

Office of Naval Research

U.S. Department of Energy

National Oceanographic and Atmospheric Administration

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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