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Article: Impact of Historical Climate Change on the Southern Ocean Carbon Cycle
- Article from:
- Journal of Climate
- Article date:
- November 15, 2008
- Author:
CopyrightCopyright American Meteorological Society Nov 15, 2008. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT
Climate change over the last several decades is suggested to cause a decrease in the magnitude of the uptake of CO2 by the Southern Ocean (Le Quere et al.). In this study, the atmospheric fields from NCEP R1 for the years 1948-2003 are used to drive an ocean biogeochemical model to probe how changes in the heat and freshwater fluxes and in the winds affect the Southern Ocean's uptake of carbon. Over this period, the model simulations herein show that the increases in heat and freshwater fluxes drive a net increase in Southern Ocean uptake (south of 40°S) while the increases in wind stresses drive a net decrease in uptake. The total Southern Ocean response is nearly identical with ...