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The budgets of heat...
The budgets of heat and salinity in NEMO
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- Hieronymus, Magnus, 1982- (author)
- Stockholms universitet,Meteorologiska institutionen (MISU)
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- Nycander, Jonas (author)
- Stockholms universitet,Meteorologiska institutionen (MISU)
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(creator_code:org_t)
- Elsevier BV, 2013
- 2013
- English.
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In: Ocean Modelling. - : Elsevier BV. - 1463-5003 .- 1463-5011. ; 67, s. 28-38
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The near steady state heat and salinity budgets under surfaces of constant depth are examined in the Nucleus for European Modelling of the Ocean (NEMO) model. It is seen that the heat fluxes in NEMO are difficult to reconcile with the idea of a deep ocean in advection-diffusion balance. Some reasons for this are that the resolved heat advection is downward above 2000 m, and that geothermal heating is, in fact, a major heat source in the deeper parts of the domain. It is also seen that isoneutral diffusion gives a very large contribution to the budgets and that the fluxes from isoneutral diffusion is in general upward. It is explained how the sign of these fluxes depends on the stratification. The heat budget for the upper 100 m of the ocean is seen to be dominated by penetrative shortwave radiation, which is so influential that we would have a mixed layer of considerable thickness even in the absence of other sources of turbulent mixing. Penetrative shortwave radiation is therefore a considerable source of potential energy.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
Keyword
- Heat budget
- Salinity budget
- NEMO
- Isoneutral diffusion
- Shortwave penetration
- atmosfärvetenskap och oceanografi
- Atmospheric Sciences and Oceanography
Publication and Content Type
- ref (subject category)
- art (subject category)
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