Stratification effects in the turbulent boundary layer beneath a melting ice shelf: Insights from resolved large-eddy simulations ...
AbstractOcean turbulence contributes to the basal melting and dissolution of ice shelves by transporting heat and salt toward the ice. The meltwater causes a stable salinity stratification to form beneath the ice that suppresses turbulence. Here we use large-eddy simulations motivated by the ice she...
Main Authors: | , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Meteorological Society
2019
|
Subjects: | |
Online Access: | https://dx.doi.org/10.17863/cam.39552 https://www.repository.cam.ac.uk/handle/1810/292402 |
id |
ftdatacite:10.17863/cam.39552 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.17863/cam.39552 2024-02-04T10:01:20+01:00 Stratification effects in the turbulent boundary layer beneath a melting ice shelf: Insights from resolved large-eddy simulations ... Vreugdenhil, CA Taylor, 2019 https://dx.doi.org/10.17863/cam.39552 https://www.repository.cam.ac.uk/handle/1810/292402 en eng American Meteorological Society https://doi.org/10.17863/CAM.39569 open.access All rights reserved http://purl.org/coar/access_right/c_abf2 Ice shelves Turbulence Large eddy simulations Article ScholarlyArticle JournalArticle article-journal 2019 ftdatacite https://doi.org/10.17863/cam.39552 2024-01-05T16:30:12Z AbstractOcean turbulence contributes to the basal melting and dissolution of ice shelves by transporting heat and salt toward the ice. The meltwater causes a stable salinity stratification to form beneath the ice that suppresses turbulence. Here we use large-eddy simulations motivated by the ice shelf–ocean boundary layer (ISOBL) to examine the inherently linked processes of turbulence and stratification, and their influence on the melt rate. Our rectangular domain is bounded from above by the ice base where a dynamic melt condition is imposed. By varying the speed of the flow and the ambient temperature, we identify a fully turbulent, well-mixed regime and an intermittently turbulent, strongly stratified regime. The transition between regimes can be characterized by comparing the Obukhov length, which provides a measure of the distance away from the ice base where stratification begins to dominate the flow, to the viscous length scale of the interfacial sublayer. Upper limits on simulated turbulent transfer ... Article in Journal/Newspaper Ice Shelf Ice Shelves DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Ice shelves Turbulence Large eddy simulations |
spellingShingle |
Ice shelves Turbulence Large eddy simulations Vreugdenhil, CA Taylor, Stratification effects in the turbulent boundary layer beneath a melting ice shelf: Insights from resolved large-eddy simulations ... |
topic_facet |
Ice shelves Turbulence Large eddy simulations |
description |
AbstractOcean turbulence contributes to the basal melting and dissolution of ice shelves by transporting heat and salt toward the ice. The meltwater causes a stable salinity stratification to form beneath the ice that suppresses turbulence. Here we use large-eddy simulations motivated by the ice shelf–ocean boundary layer (ISOBL) to examine the inherently linked processes of turbulence and stratification, and their influence on the melt rate. Our rectangular domain is bounded from above by the ice base where a dynamic melt condition is imposed. By varying the speed of the flow and the ambient temperature, we identify a fully turbulent, well-mixed regime and an intermittently turbulent, strongly stratified regime. The transition between regimes can be characterized by comparing the Obukhov length, which provides a measure of the distance away from the ice base where stratification begins to dominate the flow, to the viscous length scale of the interfacial sublayer. Upper limits on simulated turbulent transfer ... |
format |
Article in Journal/Newspaper |
author |
Vreugdenhil, CA Taylor, |
author_facet |
Vreugdenhil, CA Taylor, |
author_sort |
Vreugdenhil, CA |
title |
Stratification effects in the turbulent boundary layer beneath a melting ice shelf: Insights from resolved large-eddy simulations ... |
title_short |
Stratification effects in the turbulent boundary layer beneath a melting ice shelf: Insights from resolved large-eddy simulations ... |
title_full |
Stratification effects in the turbulent boundary layer beneath a melting ice shelf: Insights from resolved large-eddy simulations ... |
title_fullStr |
Stratification effects in the turbulent boundary layer beneath a melting ice shelf: Insights from resolved large-eddy simulations ... |
title_full_unstemmed |
Stratification effects in the turbulent boundary layer beneath a melting ice shelf: Insights from resolved large-eddy simulations ... |
title_sort |
stratification effects in the turbulent boundary layer beneath a melting ice shelf: insights from resolved large-eddy simulations ... |
publisher |
American Meteorological Society |
publishDate |
2019 |
url |
https://dx.doi.org/10.17863/cam.39552 https://www.repository.cam.ac.uk/handle/1810/292402 |
genre |
Ice Shelf Ice Shelves |
genre_facet |
Ice Shelf Ice Shelves |
op_relation |
https://doi.org/10.17863/CAM.39569 |
op_rights |
open.access All rights reserved http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.17863/cam.39552 |
_version_ |
1789967106333212672 |