Impact of the Mertz Glacier Tongue calving on dense water formation and export
Antarctic Bottom Water (AABW) is a critical component of the global climate system, occupying the abyssal layer of the World Ocean and driving the lower limb of the global meridional overturning circulation. Around East Antarctica, the dense shelf water (DSW) precursor to AABW is predominantly forme...
Published in: | Nature Communications |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Nature Publishing Group
2011
|
Subjects: | |
Online Access: | https://doi.org/10.1038/ncomms1156 http://ecite.utas.edu.au/96876 |
id |
ftunivtasecite:oai:ecite.utas.edu.au:96876 |
---|---|
record_format |
openpolar |
spelling |
ftunivtasecite:oai:ecite.utas.edu.au:96876 2023-05-15T13:37:24+02:00 Impact of the Mertz Glacier Tongue calving on dense water formation and export Kusahara, K Hasumi, H Williams, GD 2011 https://doi.org/10.1038/ncomms1156 http://ecite.utas.edu.au/96876 en eng Nature Publishing Group http://dx.doi.org/10.1038/ncomms1156 Kusahara, K and Hasumi, H and Williams, GD, Impact of the Mertz Glacier Tongue calving on dense water formation and export, Nature Communications, 2 Article 159. ISSN 2041-1723 (2011) [Refereed Article] http://ecite.utas.edu.au/96876 Earth Sciences Oceanography Physical Oceanography Refereed Article PeerReviewed 2011 ftunivtasecite https://doi.org/10.1038/ncomms1156 2019-12-13T21:59:08Z Antarctic Bottom Water (AABW) is a critical component of the global climate system, occupying the abyssal layer of the World Ocean and driving the lower limb of the global meridional overturning circulation. Around East Antarctica, the dense shelf water (DSW) precursor to AABW is predominantly formed by enhanced sea ice formation in coastal polynyas. The dominant source region of AABW supply to the AustralianAntarctic Basin is the Adlie and George V Land coast, in particular, polynyas formed in the western lee of the Mertz Glacier Tongue (MGT) and the grounded iceberg B9b over the Adlie and the Mertz Depressions, respectively. The calving of the MGT, which occurred on 1213 February 2010, dramatically changed the environment for producing DSW. Here, we assess its impact using a state-of-the-art ice-ocean model. The model shows that oceanic circulation and sea ice production in the region changes immediately after the calving event, and that the DSW export is reduced by up to 23%. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica George V Land Iceberg* Mertz Glacier Sea ice eCite UTAS (University of Tasmania) Antarctic East Antarctica Mertz Glacier ENVELOPE(144.500,144.500,-67.667,-67.667) George V Land ENVELOPE(148.000,148.000,-68.500,-68.500) Mertz Glacier Tongue ENVELOPE(145.500,145.500,-67.167,-67.167) Nature Communications 2 1 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Oceanography Physical Oceanography |
spellingShingle |
Earth Sciences Oceanography Physical Oceanography Kusahara, K Hasumi, H Williams, GD Impact of the Mertz Glacier Tongue calving on dense water formation and export |
topic_facet |
Earth Sciences Oceanography Physical Oceanography |
description |
Antarctic Bottom Water (AABW) is a critical component of the global climate system, occupying the abyssal layer of the World Ocean and driving the lower limb of the global meridional overturning circulation. Around East Antarctica, the dense shelf water (DSW) precursor to AABW is predominantly formed by enhanced sea ice formation in coastal polynyas. The dominant source region of AABW supply to the AustralianAntarctic Basin is the Adlie and George V Land coast, in particular, polynyas formed in the western lee of the Mertz Glacier Tongue (MGT) and the grounded iceberg B9b over the Adlie and the Mertz Depressions, respectively. The calving of the MGT, which occurred on 1213 February 2010, dramatically changed the environment for producing DSW. Here, we assess its impact using a state-of-the-art ice-ocean model. The model shows that oceanic circulation and sea ice production in the region changes immediately after the calving event, and that the DSW export is reduced by up to 23%. |
format |
Article in Journal/Newspaper |
author |
Kusahara, K Hasumi, H Williams, GD |
author_facet |
Kusahara, K Hasumi, H Williams, GD |
author_sort |
Kusahara, K |
title |
Impact of the Mertz Glacier Tongue calving on dense water formation and export |
title_short |
Impact of the Mertz Glacier Tongue calving on dense water formation and export |
title_full |
Impact of the Mertz Glacier Tongue calving on dense water formation and export |
title_fullStr |
Impact of the Mertz Glacier Tongue calving on dense water formation and export |
title_full_unstemmed |
Impact of the Mertz Glacier Tongue calving on dense water formation and export |
title_sort |
impact of the mertz glacier tongue calving on dense water formation and export |
publisher |
Nature Publishing Group |
publishDate |
2011 |
url |
https://doi.org/10.1038/ncomms1156 http://ecite.utas.edu.au/96876 |
long_lat |
ENVELOPE(144.500,144.500,-67.667,-67.667) ENVELOPE(148.000,148.000,-68.500,-68.500) ENVELOPE(145.500,145.500,-67.167,-67.167) |
geographic |
Antarctic East Antarctica Mertz Glacier George V Land Mertz Glacier Tongue |
geographic_facet |
Antarctic East Antarctica Mertz Glacier George V Land Mertz Glacier Tongue |
genre |
Antarc* Antarctic Antarctica East Antarctica George V Land Iceberg* Mertz Glacier Sea ice |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica George V Land Iceberg* Mertz Glacier Sea ice |
op_relation |
http://dx.doi.org/10.1038/ncomms1156 Kusahara, K and Hasumi, H and Williams, GD, Impact of the Mertz Glacier Tongue calving on dense water formation and export, Nature Communications, 2 Article 159. ISSN 2041-1723 (2011) [Refereed Article] http://ecite.utas.edu.au/96876 |
op_doi |
https://doi.org/10.1038/ncomms1156 |
container_title |
Nature Communications |
container_volume |
2 |
container_issue |
1 |
_version_ |
1766091425615708160 |