Sensitivity of deep ocean mixing to local internal tide breaking and mixing efficiency
There have been recent advancements in the quantification of parameters describing the proportion of internal tide energy being dissipated locally and the “efficiency” of diapycnal mixing, that is, the ratio of the diapycnal mixing rate to the kinetic energy dissipation rate. We show that oceanic ti...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Wiley
2019
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| _version_ | 1826288409877938176 |
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| author | Cimoli, L Caulfield, C Johnson, H Marshall, D Mashayek, A Naveira Garabato, A Vic, C |
| author_facet | Cimoli, L Caulfield, C Johnson, H Marshall, D Mashayek, A Naveira Garabato, A Vic, C |
| author_sort | Cimoli, L |
| collection | OXFORD |
| description | There have been recent advancements in the quantification of parameters describing the proportion of internal tide energy being dissipated locally and the “efficiency” of diapycnal mixing, that is, the ratio of the diapycnal mixing rate to the kinetic energy dissipation rate. We show that oceanic tidal mixing is nontrivially sensitive to the covariation of these parameters. Varying these parameters one at a time can lead to significant errors in the patterns of diapycnal mixing‐driven upwelling and downwelling and to the over and under estimation of mixing in such a way that the net rate of globally integrated deep circulation appears reasonable. However, the local rates of upwelling and downwelling in the deep ocean are significantly different when both parameters are allowed to covary and be spatially variable. These findings have important implications for the representation of oceanic heat, carbon, nutrients, and other tracer budgets in general circulation models.
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| first_indexed | 2024-03-07T02:13:16Z |
| format | Journal article |
| id | oxford-uuid:a15d6d3c-6779-430f-b965-16cd637c8313 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:13:16Z |
| publishDate | 2019 |
| publisher | Wiley |
| record_format | dspace |
| spelling | oxford-uuid:a15d6d3c-6779-430f-b965-16cd637c83132022-03-27T02:12:42ZSensitivity of deep ocean mixing to local internal tide breaking and mixing efficiencyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a15d6d3c-6779-430f-b965-16cd637c8313EnglishSymplectic Elements at OxfordWiley2019Cimoli, LCaulfield, CJohnson, HMarshall, DMashayek, ANaveira Garabato, AVic, CThere have been recent advancements in the quantification of parameters describing the proportion of internal tide energy being dissipated locally and the “efficiency” of diapycnal mixing, that is, the ratio of the diapycnal mixing rate to the kinetic energy dissipation rate. We show that oceanic tidal mixing is nontrivially sensitive to the covariation of these parameters. Varying these parameters one at a time can lead to significant errors in the patterns of diapycnal mixing‐driven upwelling and downwelling and to the over and under estimation of mixing in such a way that the net rate of globally integrated deep circulation appears reasonable. However, the local rates of upwelling and downwelling in the deep ocean are significantly different when both parameters are allowed to covary and be spatially variable. These findings have important implications for the representation of oceanic heat, carbon, nutrients, and other tracer budgets in general circulation models. |
| spellingShingle | Cimoli, L Caulfield, C Johnson, H Marshall, D Mashayek, A Naveira Garabato, A Vic, C Sensitivity of deep ocean mixing to local internal tide breaking and mixing efficiency |
| title | Sensitivity of deep ocean mixing to local internal tide breaking and mixing efficiency |
| title_full | Sensitivity of deep ocean mixing to local internal tide breaking and mixing efficiency |
| title_fullStr | Sensitivity of deep ocean mixing to local internal tide breaking and mixing efficiency |
| title_full_unstemmed | Sensitivity of deep ocean mixing to local internal tide breaking and mixing efficiency |
| title_short | Sensitivity of deep ocean mixing to local internal tide breaking and mixing efficiency |
| title_sort | sensitivity of deep ocean mixing to local internal tide breaking and mixing efficiency |
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