2.5-dimensionally modeling the thermodynamics of the ice shelf–ocean boundary current underlain by strong pycnocline beneath a cold-water ice shelf ...
<!--!introduction!--> Ice shelf basal melting is the major cause of the current mass loss of Antarctic ice sheets. The resultant meltwater plumes contribute to the development of the unique two-layer stratified ice shelf–ocean boundary currents underlain by warmer, saltier, and stationary sour...
| Main Authors: | , , , |
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| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
GFZ German Research Centre for Geosciences
2023
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.57757/iugg23-0295 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016156 |
| Summary: | <!--!introduction!--> Ice shelf basal melting is the major cause of the current mass loss of Antarctic ice sheets. The resultant meltwater plumes contribute to the development of the unique two-layer stratified ice shelf–ocean boundary currents underlain by warmer, saltier, and stationary source waters. However, knowledge of the thermodynamics within these plumes, controlling the heat available for melting ice, remains outstanding. To this end, we investigated that important issue by developing a 2.5-dimensional nonhydrostatic vertical slice model with 1.5 m vertical resolution, and conducted the reference run based on a representative Ice Shelf Water (ISW)-High Salinity Shelf Water (HSSW) boundary current beneath the Amery Ice Shelf, East Antarctica. Based on that we identified two dominating vertical thermal processes regulating the local temperature: the turbulent diffusion and the shear instabilities-induced convection, and carried out a quantitative thermal budget analysis in the framework of ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
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