Numerical Simulations of Melt-Driven Double-Diffusive Fluxes in a Turbulent Boundary Layer beneath an Ice Shelf ...
AbstractThe transport of heat and salt through turbulent ice shelf–ocean boundary layers is a large source of uncertainty within ocean models of ice shelf cavities. This study uses small-scale, high-resolution, 3D numerical simulations to model an idealized boundary layer beneath a melting ice shelf...
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Online Access: | https://dx.doi.org/10.17863/cam.72613 https://www.repository.cam.ac.uk/handle/1810/325156 |
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ftdatacite:10.17863/cam.72613 2024-02-04T10:01:20+01:00 Numerical Simulations of Melt-Driven Double-Diffusive Fluxes in a Turbulent Boundary Layer beneath an Ice Shelf ... Middleton, L Vreugdenhil, CA Holland, PR Taylor, 2021 https://dx.doi.org/10.17863/cam.72613 https://www.repository.cam.ac.uk/handle/1810/325156 en eng American Meteorological Society open.access All rights reserved http://purl.org/coar/access_right/c_abf2 Ice shelves Mixing Turbulence Article ScholarlyArticle JournalArticle article-journal 2021 ftdatacite https://doi.org/10.17863/cam.72613 2024-01-05T15:15:57Z AbstractThe transport of heat and salt through turbulent ice shelf–ocean boundary layers is a large source of uncertainty within ocean models of ice shelf cavities. This study uses small-scale, high-resolution, 3D numerical simulations to model an idealized boundary layer beneath a melting ice shelf to investigate the influence of ambient turbulence on double-diffusive convection (i.e., convection driven by the difference in diffusivities between salinity and temperature). Isotropic turbulence is forced throughout the simulations and the temperature and salinity are initialized with homogeneous values similar to observations. The initial temperature and the strength of forced turbulence are varied as controlling parameters within an oceanographically relevant parameter space. Two contrasting regimes are identified. In one regime double-diffusive convection dominates, and in the other convection is inhibited by the forced turbulence. The convective regime occurs for high temperatures and low turbulence ... Article in Journal/Newspaper Ice Shelf Ice Shelves DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Ice shelves Mixing Turbulence |
spellingShingle |
Ice shelves Mixing Turbulence Middleton, L Vreugdenhil, CA Holland, PR Taylor, Numerical Simulations of Melt-Driven Double-Diffusive Fluxes in a Turbulent Boundary Layer beneath an Ice Shelf ... |
topic_facet |
Ice shelves Mixing Turbulence |
description |
AbstractThe transport of heat and salt through turbulent ice shelf–ocean boundary layers is a large source of uncertainty within ocean models of ice shelf cavities. This study uses small-scale, high-resolution, 3D numerical simulations to model an idealized boundary layer beneath a melting ice shelf to investigate the influence of ambient turbulence on double-diffusive convection (i.e., convection driven by the difference in diffusivities between salinity and temperature). Isotropic turbulence is forced throughout the simulations and the temperature and salinity are initialized with homogeneous values similar to observations. The initial temperature and the strength of forced turbulence are varied as controlling parameters within an oceanographically relevant parameter space. Two contrasting regimes are identified. In one regime double-diffusive convection dominates, and in the other convection is inhibited by the forced turbulence. The convective regime occurs for high temperatures and low turbulence ... |
format |
Article in Journal/Newspaper |
author |
Middleton, L Vreugdenhil, CA Holland, PR Taylor, |
author_facet |
Middleton, L Vreugdenhil, CA Holland, PR Taylor, |
author_sort |
Middleton, L |
title |
Numerical Simulations of Melt-Driven Double-Diffusive Fluxes in a Turbulent Boundary Layer beneath an Ice Shelf ... |
title_short |
Numerical Simulations of Melt-Driven Double-Diffusive Fluxes in a Turbulent Boundary Layer beneath an Ice Shelf ... |
title_full |
Numerical Simulations of Melt-Driven Double-Diffusive Fluxes in a Turbulent Boundary Layer beneath an Ice Shelf ... |
title_fullStr |
Numerical Simulations of Melt-Driven Double-Diffusive Fluxes in a Turbulent Boundary Layer beneath an Ice Shelf ... |
title_full_unstemmed |
Numerical Simulations of Melt-Driven Double-Diffusive Fluxes in a Turbulent Boundary Layer beneath an Ice Shelf ... |
title_sort |
numerical simulations of melt-driven double-diffusive fluxes in a turbulent boundary layer beneath an ice shelf ... |
publisher |
American Meteorological Society |
publishDate |
2021 |
url |
https://dx.doi.org/10.17863/cam.72613 https://www.repository.cam.ac.uk/handle/1810/325156 |
genre |
Ice Shelf Ice Shelves |
genre_facet |
Ice Shelf Ice Shelves |
op_rights |
open.access All rights reserved http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.17863/cam.72613 |
_version_ |
1789967104104988672 |