Impact of geothermal heating on the global ocean circulation
Adcroft, Alistair, Scott, Jeffery R. and Marotzke, Jochem (2001) Impact of geothermal heating on the global ocean circulation. Geophysical Research Letters, 28, (9), 1735-1738.
The response of a global circulation model to a uniform geothermal heat flux of 50 mW m-2 through the sea floor is examined. If the geothermal heat input were transported upward purely by diffusion, the deep ocean would warm by 1.2°C. However, geothermal heating induces a substantial change in the deep circulation which is larger than previously assumed and subsequently the warming of the deep ocean is only a quarter of that suggested by the diffusive limit. The numerical ocean model responds most strongly in the Indo-Pacific with an increase in meridional overturning of 1.8 Sv, enhancing the existing overturning by approximately 25%.
|Keywords:||ocean circulation, heat flow|
|Subjects:||G Geography. Anthropology. Recreation > GC Oceanography|
|Divisions:||University Structure - Pre August 2011 > School of Ocean & Earth Science (SOC/SOES)
|Date Deposited:||11 Dec 2003|
|Last Modified:||28 Jun 2012 09:14|
|Contributors:||Adcroft, Alistair (Author)
Scott, Jeffery R. (Author)
Marotzke, Jochem (Author)
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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