Double‐Diffusive Layer and Meltwater Plume Effects on Ice Face Scalloping in Phase‐Change Simulations
Abstract Antarctic ice shelves are losing mass at increasing rates, yet the ice‐ocean interactions that cause significant ice loss are not well understood. A new approach of high‐resolution phase‐change simulations is used to model vertical ice melting into a stratified ocean. The ocean dynamics sho...
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| Format: | Article |
| Language: | English |
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Wiley
2023-09-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2023GL104396 |
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| author | Nicholas J. Wilson Catherine A. Vreugdenhil Bishakhdatta Gayen Eric W. Hester |
| author_facet | Nicholas J. Wilson Catherine A. Vreugdenhil Bishakhdatta Gayen Eric W. Hester |
| author_sort | Nicholas J. Wilson |
| collection | DOAJ |
| description | Abstract Antarctic ice shelves are losing mass at increasing rates, yet the ice‐ocean interactions that cause significant ice loss are not well understood. A new approach of high‐resolution phase‐change simulations is used to model vertical ice melting into a stratified ocean. The ocean dynamics show complicated interplay between a turbulent buoyant meltwater plume and double‐diffusive layers, while the ice actively melts and changes topography. At room temperatures, the double‐diffusive layer thickness is closely linked to ice scalloping. At lower, more realistic ocean temperatures, the meltwater plume becomes prominent with a laminar‐to‐turbulent transition imprinting an indent on the melting ice. The double‐diffusive layer thickness is consistent with scaling prediction, while the real‐world application demonstrates reasonably good matching of the scaling prediction for some Antarctic regions. Our study is a key first step toward the future use of high‐resolution phase‐change fluid dynamics simulations to better understand Antarctic ice shelves in a changing climate. |
| format | Article |
| id | doaj-art-95f7b875ff1b4f59ac4e0e2c0b8f3711 |
| institution | DOAJ |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2023-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-95f7b875ff1b4f59ac4e0e2c0b8f37112025-08-20T03:02:10ZengWileyGeophysical Research Letters0094-82761944-80072023-09-015017n/an/a10.1029/2023GL104396Double‐Diffusive Layer and Meltwater Plume Effects on Ice Face Scalloping in Phase‐Change SimulationsNicholas J. Wilson0Catherine A. Vreugdenhil1Bishakhdatta Gayen2Eric W. Hester3Department of Mechanical Engineering University of Melbourne Melbourne VIC AustraliaDepartment of Mechanical Engineering University of Melbourne Melbourne VIC AustraliaDepartment of Mechanical Engineering University of Melbourne Melbourne VIC AustraliaDepartment of Mathematics The University of California Los Angeles Los Angeles CA USAAbstract Antarctic ice shelves are losing mass at increasing rates, yet the ice‐ocean interactions that cause significant ice loss are not well understood. A new approach of high‐resolution phase‐change simulations is used to model vertical ice melting into a stratified ocean. The ocean dynamics show complicated interplay between a turbulent buoyant meltwater plume and double‐diffusive layers, while the ice actively melts and changes topography. At room temperatures, the double‐diffusive layer thickness is closely linked to ice scalloping. At lower, more realistic ocean temperatures, the meltwater plume becomes prominent with a laminar‐to‐turbulent transition imprinting an indent on the melting ice. The double‐diffusive layer thickness is consistent with scaling prediction, while the real‐world application demonstrates reasonably good matching of the scaling prediction for some Antarctic regions. Our study is a key first step toward the future use of high‐resolution phase‐change fluid dynamics simulations to better understand Antarctic ice shelves in a changing climate.https://doi.org/10.1029/2023GL104396ice‐ocean interactionsice shelf scallopingmeltwater plumedouble‐diffusive layersAntarctic ice shelvesocean dynamics |
| spellingShingle | Nicholas J. Wilson Catherine A. Vreugdenhil Bishakhdatta Gayen Eric W. Hester Double‐Diffusive Layer and Meltwater Plume Effects on Ice Face Scalloping in Phase‐Change Simulations Geophysical Research Letters ice‐ocean interactions ice shelf scalloping meltwater plume double‐diffusive layers Antarctic ice shelves ocean dynamics |
| title | Double‐Diffusive Layer and Meltwater Plume Effects on Ice Face Scalloping in Phase‐Change Simulations |
| title_full | Double‐Diffusive Layer and Meltwater Plume Effects on Ice Face Scalloping in Phase‐Change Simulations |
| title_fullStr | Double‐Diffusive Layer and Meltwater Plume Effects on Ice Face Scalloping in Phase‐Change Simulations |
| title_full_unstemmed | Double‐Diffusive Layer and Meltwater Plume Effects on Ice Face Scalloping in Phase‐Change Simulations |
| title_short | Double‐Diffusive Layer and Meltwater Plume Effects on Ice Face Scalloping in Phase‐Change Simulations |
| title_sort | double diffusive layer and meltwater plume effects on ice face scalloping in phase change simulations |
| topic | ice‐ocean interactions ice shelf scalloping meltwater plume double‐diffusive layers Antarctic ice shelves ocean dynamics |
| url | https://doi.org/10.1029/2023GL104396 |
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