Estimating Dissipation Rates Associated With Double Diffusion ...
AbstractDouble diffusion refers to a variety of turbulent processes in which potential energy is released into kinetic energy, made possible in the ocean by the difference in molecular diffusivities between salinity and temperature. Here, we present a new method for estimating the kinetic energy dis...
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American Geophysical Union (AGU)
2021
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ftdatacite:10.17863/cam.73431 2024-02-27T08:39:41+00:00 Estimating Dissipation Rates Associated With Double Diffusion ... Middleton, L Fine, EC MacKinnon, JA Alford, MH Taylor, 2021 https://dx.doi.org/10.17863/cam.73431 https://www.repository.cam.ac.uk/handle/1810/325974 en eng American Geophysical Union (AGU) ocean mixing double-diffusive convection compensated thermohaline variance article-journal ScholarlyArticle JournalArticle Article 2021 ftdatacite https://doi.org/10.17863/cam.73431 2024-02-01T14:50:01Z AbstractDouble diffusion refers to a variety of turbulent processes in which potential energy is released into kinetic energy, made possible in the ocean by the difference in molecular diffusivities between salinity and temperature. Here, we present a new method for estimating the kinetic energy dissipation rates forced by double‐diffusive convection using temperature and salinity data alone. The method estimates the up‐gradient diapycnal buoyancy flux associated with double diffusion, which is hypothesized to balance the dissipation rate. To calculate the temperature and salinity gradients on small scales we apply a canonical scaling for compensated thermohaline variance (or ‘spice’) on sub‐measurement scales with a fixed buoyancy gradient. Our predicted dissipation rates compare favorably with microstructure measurements collected in the Chukchi Sea. Fine et al. (2018), https://doi.org/10.1175/jpo-d-18-0028.1, showed that dissipation rates provide good estimates for heat fluxes in this region. Finally, we ... Article in Journal/Newspaper Chukchi Chukchi Sea DataCite Metadata Store (German National Library of Science and Technology) Chukchi Sea |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
ocean mixing double-diffusive convection compensated thermohaline variance |
spellingShingle |
ocean mixing double-diffusive convection compensated thermohaline variance Middleton, L Fine, EC MacKinnon, JA Alford, MH Taylor, Estimating Dissipation Rates Associated With Double Diffusion ... |
topic_facet |
ocean mixing double-diffusive convection compensated thermohaline variance |
description |
AbstractDouble diffusion refers to a variety of turbulent processes in which potential energy is released into kinetic energy, made possible in the ocean by the difference in molecular diffusivities between salinity and temperature. Here, we present a new method for estimating the kinetic energy dissipation rates forced by double‐diffusive convection using temperature and salinity data alone. The method estimates the up‐gradient diapycnal buoyancy flux associated with double diffusion, which is hypothesized to balance the dissipation rate. To calculate the temperature and salinity gradients on small scales we apply a canonical scaling for compensated thermohaline variance (or ‘spice’) on sub‐measurement scales with a fixed buoyancy gradient. Our predicted dissipation rates compare favorably with microstructure measurements collected in the Chukchi Sea. Fine et al. (2018), https://doi.org/10.1175/jpo-d-18-0028.1, showed that dissipation rates provide good estimates for heat fluxes in this region. Finally, we ... |
format |
Article in Journal/Newspaper |
author |
Middleton, L Fine, EC MacKinnon, JA Alford, MH Taylor, |
author_facet |
Middleton, L Fine, EC MacKinnon, JA Alford, MH Taylor, |
author_sort |
Middleton, L |
title |
Estimating Dissipation Rates Associated With Double Diffusion ... |
title_short |
Estimating Dissipation Rates Associated With Double Diffusion ... |
title_full |
Estimating Dissipation Rates Associated With Double Diffusion ... |
title_fullStr |
Estimating Dissipation Rates Associated With Double Diffusion ... |
title_full_unstemmed |
Estimating Dissipation Rates Associated With Double Diffusion ... |
title_sort |
estimating dissipation rates associated with double diffusion ... |
publisher |
American Geophysical Union (AGU) |
publishDate |
2021 |
url |
https://dx.doi.org/10.17863/cam.73431 https://www.repository.cam.ac.uk/handle/1810/325974 |
geographic |
Chukchi Sea |
geographic_facet |
Chukchi Sea |
genre |
Chukchi Chukchi Sea |
genre_facet |
Chukchi Chukchi Sea |
op_doi |
https://doi.org/10.17863/cam.73431 |
_version_ |
1792046742076653568 |