The Thermal Structure of the Upper Ocean
Autor: | H. Philander, S. George, R. C. Pacanowski, Giulio Boccaletti, Alexey V. Fedorov |
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Rok vydání: | 2004 |
Předmět: | |
Zdroj: | Journal of Physical Oceanography. 34:888-902 |
ISSN: | 1520-0485 0022-3670 |
DOI: | 10.1175/1520-0485(2004)034<0888:ttsotu>2.0.co;2 |
Popis: | The salient feature of the oceanic thermal structure is a remarkably shallow thermocline, especially in the Tropics and subtropics. What factors determine its depth? Theories for the deep thermohaline circulation provide an answer that depends on oceanic diffusivity, but they deny the surface winds an explicit role. Theories for the shallow ventilated thermocline take into account the influence of the wind explicitly, but only if the thermal structure in the absence of any winds, the thermal structure along the eastern boundary, is given. To complete and marry the existing theories for the oceanic thermal structure, this paper invokes the constraint of a balanced heat budget for the ocean. The oceanic heat gain occurs primarily in the upwelling zones of the Tropics and subtropics and depends strongly on oceanic conditions, specifically the depth of the thermocline. The heat gain is large when the thermocline is shallow but is small when the thermocline is deep. The constraint of a balanced heat b... |
Databáze: | OpenAIRE |
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