Influence of tides on melting and freezing beneath Filchner-Ronne Ice Shelf, Antarctica
An isopycnic coordinate ocean circulation model is applied to the ocean cavity beneath Filchner-Ronne Ice Shelf, investigating the role of tides on sub-ice shelf circulation and ice shelf basal mass balance. Including tidal forcing causes a significant intensification in the sub-ice shelf circulatio...
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American Geophysical Union
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ftnerc:oai:nora.nerc.ac.uk:14502 2023-05-15T13:45:11+02:00 Influence of tides on melting and freezing beneath Filchner-Ronne Ice Shelf, Antarctica Makinson, Keith Holland, Paul R. Jenkins, Adrian Nicholls, Keith W. Holland, David M. 2011 text http://nora.nerc.ac.uk/id/eprint/14502/ https://nora.nerc.ac.uk/id/eprint/14502/1/grl27836.pdf en eng American Geophysical Union https://nora.nerc.ac.uk/id/eprint/14502/1/grl27836.pdf Makinson, Keith orcid:0000-0002-5791-1767 Holland, Paul R. orcid:0000-0001-8370-289X Jenkins, Adrian orcid:0000-0002-9117-0616 Nicholls, Keith W. orcid:0000-0002-2188-4509 Holland, David M. 2011 Influence of tides on melting and freezing beneath Filchner-Ronne Ice Shelf, Antarctica. Geophysical Research Letters, 38 (6), L06601. 6, pp. https://doi.org/10.1029/2010GL046462 <https://doi.org/10.1029/2010GL046462> Marine Sciences Glaciology Publication - Article PeerReviewed 2011 ftnerc https://doi.org/10.1029/2010GL046462 2023-02-04T19:29:14Z An isopycnic coordinate ocean circulation model is applied to the ocean cavity beneath Filchner-Ronne Ice Shelf, investigating the role of tides on sub-ice shelf circulation and ice shelf basal mass balance. Including tidal forcing causes a significant intensification in the sub-ice shelf circulation, with an increase in melting (3-fold) and refreezing (6-fold); the net melt rate and seawater flux through the cavity approximately doubles. With tidal forcing, the spatial pattern and magnitude of basal melting and freezing generally match observations. The 0.22 m a(-1) net melt rate is close to satellite-derived estimates and at the lower end of oceanographic values. The Ice Shelf Water outflow mixes with shelf waters, forming a cold (<-1.9 degrees C), dense overflow (0.83 Sv) that spills down the continental slope. These results demonstrate that tidal forcing is fundamental to both ice shelf-ocean interactions and deep-water formation in the southern Weddell Sea. Citation: Makinson, K., P. R. Holland, A. Jenkins, K. W. Nicholls, and D. M. Holland (2011), Influence of tides on melting and freezing beneath Filchner-Ronne Ice Shelf, Antarctica, Geophys. Res. Lett., 38, L06601, doi:10.1029/2010GL046462. Article in Journal/Newspaper Antarc* Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Ice Shelf Ronne Ice Shelf Weddell Sea Natural Environment Research Council: NERC Open Research Archive Ronne Ice Shelf ENVELOPE(-61.000,-61.000,-78.500,-78.500) Weddell Weddell Sea Geophysical Research Letters 38 6 n/a n/a |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
topic |
Marine Sciences Glaciology |
spellingShingle |
Marine Sciences Glaciology Makinson, Keith Holland, Paul R. Jenkins, Adrian Nicholls, Keith W. Holland, David M. Influence of tides on melting and freezing beneath Filchner-Ronne Ice Shelf, Antarctica |
topic_facet |
Marine Sciences Glaciology |
description |
An isopycnic coordinate ocean circulation model is applied to the ocean cavity beneath Filchner-Ronne Ice Shelf, investigating the role of tides on sub-ice shelf circulation and ice shelf basal mass balance. Including tidal forcing causes a significant intensification in the sub-ice shelf circulation, with an increase in melting (3-fold) and refreezing (6-fold); the net melt rate and seawater flux through the cavity approximately doubles. With tidal forcing, the spatial pattern and magnitude of basal melting and freezing generally match observations. The 0.22 m a(-1) net melt rate is close to satellite-derived estimates and at the lower end of oceanographic values. The Ice Shelf Water outflow mixes with shelf waters, forming a cold (<-1.9 degrees C), dense overflow (0.83 Sv) that spills down the continental slope. These results demonstrate that tidal forcing is fundamental to both ice shelf-ocean interactions and deep-water formation in the southern Weddell Sea. Citation: Makinson, K., P. R. Holland, A. Jenkins, K. W. Nicholls, and D. M. Holland (2011), Influence of tides on melting and freezing beneath Filchner-Ronne Ice Shelf, Antarctica, Geophys. Res. Lett., 38, L06601, doi:10.1029/2010GL046462. |
format |
Article in Journal/Newspaper |
author |
Makinson, Keith Holland, Paul R. Jenkins, Adrian Nicholls, Keith W. Holland, David M. |
author_facet |
Makinson, Keith Holland, Paul R. Jenkins, Adrian Nicholls, Keith W. Holland, David M. |
author_sort |
Makinson, Keith |
title |
Influence of tides on melting and freezing beneath Filchner-Ronne Ice Shelf, Antarctica |
title_short |
Influence of tides on melting and freezing beneath Filchner-Ronne Ice Shelf, Antarctica |
title_full |
Influence of tides on melting and freezing beneath Filchner-Ronne Ice Shelf, Antarctica |
title_fullStr |
Influence of tides on melting and freezing beneath Filchner-Ronne Ice Shelf, Antarctica |
title_full_unstemmed |
Influence of tides on melting and freezing beneath Filchner-Ronne Ice Shelf, Antarctica |
title_sort |
influence of tides on melting and freezing beneath filchner-ronne ice shelf, antarctica |
publisher |
American Geophysical Union |
publishDate |
2011 |
url |
http://nora.nerc.ac.uk/id/eprint/14502/ https://nora.nerc.ac.uk/id/eprint/14502/1/grl27836.pdf |
long_lat |
ENVELOPE(-61.000,-61.000,-78.500,-78.500) |
geographic |
Ronne Ice Shelf Weddell Weddell Sea |
geographic_facet |
Ronne Ice Shelf Weddell Weddell Sea |
genre |
Antarc* Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Ice Shelf Ronne Ice Shelf Weddell Sea |
genre_facet |
Antarc* Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Ice Shelf Ronne Ice Shelf Weddell Sea |
op_relation |
https://nora.nerc.ac.uk/id/eprint/14502/1/grl27836.pdf Makinson, Keith orcid:0000-0002-5791-1767 Holland, Paul R. orcid:0000-0001-8370-289X Jenkins, Adrian orcid:0000-0002-9117-0616 Nicholls, Keith W. orcid:0000-0002-2188-4509 Holland, David M. 2011 Influence of tides on melting and freezing beneath Filchner-Ronne Ice Shelf, Antarctica. Geophysical Research Letters, 38 (6), L06601. 6, pp. https://doi.org/10.1029/2010GL046462 <https://doi.org/10.1029/2010GL046462> |
op_doi |
https://doi.org/10.1029/2010GL046462 |
container_title |
Geophysical Research Letters |
container_volume |
38 |
container_issue |
6 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1766215734907633664 |