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Tropical Extra-tropical thermocline water mass exchanges in the community climate model v.3 Part I: the Atlantic Ocean
1Department of Physical Oceanography, University of São Paulo, São Paulo, Brazil
2Laboratoire d’Ocanographie Dynamique et de Climatologie (LODYC), Paris, France
3National Oceanic Atmospheric Administration-Cooperative Institute Research Environmental Sciences (NOAA-CIRES) Climate Diagnostics Center, Boulder, CO, USA
Abstract. The NCAR CCSM numerical coupled model is used to understand the tropical-extra-tropical pathways of thermocline waters in the Atlantic Ocean. Climatological annual mean simulation results from three numerical experiments are analyzed. Two are fully coupled runs with different spatial resolution (T42 and T85) for the atmospheric component. The third numerical experiment is an ocean-only run forced by NCEP winds and fluxes. Results show that the different atmospheric resolutions have a significant impact on the subduction pathways in the Atlantic because of how the wind field is represented. These simulation results also show that the water subducted at the subtropics reaching the EUC is entirely from the South Atlantic. The coupled model ability to simulate the STCs is discussed.
Discussion Paper (PDF, 3884 KB) Interactive Discussion (Closed, 6 Comments) Final Revised Paper (OS)
Citation: Wainer, I., Lazar, A., and Solomon, A.: Tropical Extra-tropical thermocline water mass exchanges in the community climate model v.3 Part I: the Atlantic Ocean, Ocean Sci. Discuss., 3, 55-84, 2006. Bibtex EndNote Reference Manager
