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Detailed Reference Information |
Richardson, G., Wadley, M.R., Heywood, K.J., Stevens, D.P. and Banks, H.T. (2005). Short-term climate response to a freshwater pulse in the Southern Ocean. Geophysical Research Letters 32: doi: 10.1029/2004GL021586. issn: 0094-8276. |
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The short-term response of the climate system to a freshwater anomaly in the Southern Ocean is investigated using a coupled global climate model. As a result of the anomaly, ventilation of deep waters around Antarctica is inhibited, causing a warming of the deep ocean, and a cooling of the surface. The surface cooling causes Antarctic sea-ice to thicken and increase in extent, and this leads to a cooling of Southern Hemisphere surface air temperature. The surface cooling increases over the first 5 years, then remains constant over the next 5 years. There is a more rapid response in the Pacific Ocean, which transmits a signal to the Northern Hemisphere, ultimately causing a shift to the negative phase of the North Atlantic Oscillation in years 5--10. |
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BACKGROUND DATA FILES |
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Abstract |
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Keywords
Global Change, Abrupt/rapid climate change (4901, 8408), Global Change, Climate variability (1635, 3305, 3309, 4215, 4513), Global Change, Global climate models (3337, 4928), Global Change, Oceans (1616, 3305, 4215, 4513), Global Change, Regional climate change |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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