Sustained monitoring of the southern ocean at Drake Passage: Past achievements and future priorities
Drake Passage is the narrowest constriction of the Antarctic Circumpolar Current (ACC) in the Southern Ocean, with implications for global ocean circulation and climate. We review the long-term sustained monitoring programs that have been conducted at Drake Passage, dating back to the early part of...
Published in: | Reviews of Geophysics |
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/38967 2024-01-14T10:02:26+01:00 Sustained monitoring of the southern ocean at Drake Passage: Past achievements and future priorities Meredith, Michael P. Woodworth, Philip L. Chereskin, Teresa K. Marshall, David P. Allison, Lesley C. Bigg, Grant R. Donohue, Kathy Heywood, Karen J. Hughes, Chris W. Hibbert, Angela Hogg, Andrew Johnson, Helen L. Jullion, Loic King, Brian A. Leach, Harry Lenn, Yueng-Djern Maqueda, Miguel A Morales Munday, David R. Garabato, Albert C. Naveira Provost, Christine Sallee, Jean-Baptiste Sprintall, Janet http://hdl.handle.net/1885/38967 https://doi.org/10.1029/2010RG000348 https://openresearch-repository.anu.edu.au/bitstream/1885/38967/5/Hogg_-_Sustained_monitoring_of_the_southern_ocean.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/38967/7/01_Meredith_Sustained_monitoring_of_the_2011.pdf.jpg unknown American Geophysical Union 8755-1209 http://hdl.handle.net/1885/38967 doi:10.1029/2010RG000348 https://openresearch-repository.anu.edu.au/bitstream/1885/38967/5/Hogg_-_Sustained_monitoring_of_the_southern_ocean.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/38967/7/01_Meredith_Sustained_monitoring_of_the_2011.pdf.jpg Author/s retain copyright Reviews of Geophysics Keywords: Antarctic circumpolar current Anthropogenic process Climate research Drake passage Environmental issues Global ocean circulation Horizontal transport Interannual International resources Key variables Lower limb Monitoring programs Overturning Journal article ftanucanberra https://doi.org/10.1029/2010RG000348 2023-12-15T09:35:55Z Drake Passage is the narrowest constriction of the Antarctic Circumpolar Current (ACC) in the Southern Ocean, with implications for global ocean circulation and climate. We review the long-term sustained monitoring programs that have been conducted at Drake Passage, dating back to the early part of the twentieth century. Attention is drawn to numerous breakthroughs that have been made from these programs, including (1) the first determinations of the complex ACC structure and early quantifications of its transport; (2) realization that the ACC transport is remarkably steady over interannual and longer periods, and a growing understanding of the processes responsible for this; (3) recognition of the role of coupled climate modes in dictating the horizontal transport and the role of anthropogenic processes in this; and (4) understanding of mechanisms driving changes in both the upper and lower limbs of the Southern Ocean overturning circulation and their impacts. It is argued that monitoring of this passage remains a high priority for oceanographic and climate research but that strategic improvements could be made concerning how this is conducted. In particular, long-term programs should concentrate on delivering quantifications of key variables of direct relevance to large-scale environmental issues: In this context, the time-varying overturning circulation is, if anything, even more compelling a target than the ACC flow. Further, there is a need for better international resource sharing and improved spatiotemporal coordination of the measurements. If achieved, the improvements in understanding of important climatic issues deriving from Drake Passage monitoring can be sustained into the future. Article in Journal/Newspaper Antarc* Antarctic Drake Passage Southern Ocean Australian National University: ANU Digital Collections Antarctic Southern Ocean The Antarctic Drake Passage Reviews of Geophysics 49 4 |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: Antarctic circumpolar current Anthropogenic process Climate research Drake passage Environmental issues Global ocean circulation Horizontal transport Interannual International resources Key variables Lower limb Monitoring programs Overturning |
spellingShingle |
Keywords: Antarctic circumpolar current Anthropogenic process Climate research Drake passage Environmental issues Global ocean circulation Horizontal transport Interannual International resources Key variables Lower limb Monitoring programs Overturning Meredith, Michael P. Woodworth, Philip L. Chereskin, Teresa K. Marshall, David P. Allison, Lesley C. Bigg, Grant R. Donohue, Kathy Heywood, Karen J. Hughes, Chris W. Hibbert, Angela Hogg, Andrew Johnson, Helen L. Jullion, Loic King, Brian A. Leach, Harry Lenn, Yueng-Djern Maqueda, Miguel A Morales Munday, David R. Garabato, Albert C. Naveira Provost, Christine Sallee, Jean-Baptiste Sprintall, Janet Sustained monitoring of the southern ocean at Drake Passage: Past achievements and future priorities |
topic_facet |
Keywords: Antarctic circumpolar current Anthropogenic process Climate research Drake passage Environmental issues Global ocean circulation Horizontal transport Interannual International resources Key variables Lower limb Monitoring programs Overturning |
description |
Drake Passage is the narrowest constriction of the Antarctic Circumpolar Current (ACC) in the Southern Ocean, with implications for global ocean circulation and climate. We review the long-term sustained monitoring programs that have been conducted at Drake Passage, dating back to the early part of the twentieth century. Attention is drawn to numerous breakthroughs that have been made from these programs, including (1) the first determinations of the complex ACC structure and early quantifications of its transport; (2) realization that the ACC transport is remarkably steady over interannual and longer periods, and a growing understanding of the processes responsible for this; (3) recognition of the role of coupled climate modes in dictating the horizontal transport and the role of anthropogenic processes in this; and (4) understanding of mechanisms driving changes in both the upper and lower limbs of the Southern Ocean overturning circulation and their impacts. It is argued that monitoring of this passage remains a high priority for oceanographic and climate research but that strategic improvements could be made concerning how this is conducted. In particular, long-term programs should concentrate on delivering quantifications of key variables of direct relevance to large-scale environmental issues: In this context, the time-varying overturning circulation is, if anything, even more compelling a target than the ACC flow. Further, there is a need for better international resource sharing and improved spatiotemporal coordination of the measurements. If achieved, the improvements in understanding of important climatic issues deriving from Drake Passage monitoring can be sustained into the future. |
format |
Article in Journal/Newspaper |
author |
Meredith, Michael P. Woodworth, Philip L. Chereskin, Teresa K. Marshall, David P. Allison, Lesley C. Bigg, Grant R. Donohue, Kathy Heywood, Karen J. Hughes, Chris W. Hibbert, Angela Hogg, Andrew Johnson, Helen L. Jullion, Loic King, Brian A. Leach, Harry Lenn, Yueng-Djern Maqueda, Miguel A Morales Munday, David R. Garabato, Albert C. Naveira Provost, Christine Sallee, Jean-Baptiste Sprintall, Janet |
author_facet |
Meredith, Michael P. Woodworth, Philip L. Chereskin, Teresa K. Marshall, David P. Allison, Lesley C. Bigg, Grant R. Donohue, Kathy Heywood, Karen J. Hughes, Chris W. Hibbert, Angela Hogg, Andrew Johnson, Helen L. Jullion, Loic King, Brian A. Leach, Harry Lenn, Yueng-Djern Maqueda, Miguel A Morales Munday, David R. Garabato, Albert C. Naveira Provost, Christine Sallee, Jean-Baptiste Sprintall, Janet |
author_sort |
Meredith, Michael P. |
title |
Sustained monitoring of the southern ocean at Drake Passage: Past achievements and future priorities |
title_short |
Sustained monitoring of the southern ocean at Drake Passage: Past achievements and future priorities |
title_full |
Sustained monitoring of the southern ocean at Drake Passage: Past achievements and future priorities |
title_fullStr |
Sustained monitoring of the southern ocean at Drake Passage: Past achievements and future priorities |
title_full_unstemmed |
Sustained monitoring of the southern ocean at Drake Passage: Past achievements and future priorities |
title_sort |
sustained monitoring of the southern ocean at drake passage: past achievements and future priorities |
publisher |
American Geophysical Union |
url |
http://hdl.handle.net/1885/38967 https://doi.org/10.1029/2010RG000348 https://openresearch-repository.anu.edu.au/bitstream/1885/38967/5/Hogg_-_Sustained_monitoring_of_the_southern_ocean.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/38967/7/01_Meredith_Sustained_monitoring_of_the_2011.pdf.jpg |
geographic |
Antarctic Southern Ocean The Antarctic Drake Passage |
geographic_facet |
Antarctic Southern Ocean The Antarctic Drake Passage |
genre |
Antarc* Antarctic Drake Passage Southern Ocean |
genre_facet |
Antarc* Antarctic Drake Passage Southern Ocean |
op_source |
Reviews of Geophysics |
op_relation |
8755-1209 http://hdl.handle.net/1885/38967 doi:10.1029/2010RG000348 https://openresearch-repository.anu.edu.au/bitstream/1885/38967/5/Hogg_-_Sustained_monitoring_of_the_southern_ocean.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/38967/7/01_Meredith_Sustained_monitoring_of_the_2011.pdf.jpg |
op_rights |
Author/s retain copyright |
op_doi |
https://doi.org/10.1029/2010RG000348 |
container_title |
Reviews of Geophysics |
container_volume |
49 |
container_issue |
4 |
_version_ |
1788057464486232064 |