Transport of Antarctic bottom water through the Kane Gap, tropical NE Atlantic Ocean
We study low-frequency properties of the Antarctic Bottom Water (AABW) flow through the Kane Gap (9° N) in the Atlantic Ocean. The measurements in the Kane Gap include five visits with CTD (Conductivity-Temperature-Depth) sections in 2009–2012 and a year-long record of currents on a mooring using th...
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ftdoajarticles:oai:doaj.org/article:e37b26874b8548229c45c2b83ec6b268 2023-05-15T14:04:16+02:00 Transport of Antarctic bottom water through the Kane Gap, tropical NE Atlantic Ocean E. G. Morozov R. Y. Tarakanov H. van Haren 2013-09-01T00:00:00Z https://doi.org/10.5194/os-9-825-2013 https://doaj.org/article/e37b26874b8548229c45c2b83ec6b268 EN eng Copernicus Publications http://www.ocean-sci.net/9/825/2013/os-9-825-2013.pdf https://doaj.org/toc/1812-0784 https://doaj.org/toc/1812-0792 doi:10.5194/os-9-825-2013 1812-0784 1812-0792 https://doaj.org/article/e37b26874b8548229c45c2b83ec6b268 Ocean Science, Vol 9, Iss 5, Pp 825-835 (2013) Geography. Anthropology. Recreation G Environmental sciences GE1-350 article 2013 ftdoajarticles https://doi.org/10.5194/os-9-825-2013 2022-12-30T20:53:32Z We study low-frequency properties of the Antarctic Bottom Water (AABW) flow through the Kane Gap (9° N) in the Atlantic Ocean. The measurements in the Kane Gap include five visits with CTD (Conductivity-Temperature-Depth) sections in 2009–2012 and a year-long record of currents on a mooring using three AquaDopp current meters. We found an alternating regime of flow, which changes direction several times during a year. The seasonal signal seems to dominate. The maximum daily average values of southerly velocities reach 0.20 m s −1 , while the greatest north-northwesterly velocity is as high as 0.15 m s −1 . The velocity and transport at the bottom are aligned along the slope of a local hill near the southwestern side of the gap. The distribution of velocity directions at the upper boundary of AABW is wider. The transport of AABW (Θ < 1.9 °C) based on the mooring and LADCP (Lowered Acoustic Doppler Current Profiler) data varies approximately within ±0.35 Sv in the northern and southern directions. The annual mean AABW transport through the Kane Gap is almost zero. Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Kane ENVELOPE(-63.038,-63.038,-73.952,-73.952) Ocean Science 9 5 825 835 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geography. Anthropology. Recreation G Environmental sciences GE1-350 |
spellingShingle |
Geography. Anthropology. Recreation G Environmental sciences GE1-350 E. G. Morozov R. Y. Tarakanov H. van Haren Transport of Antarctic bottom water through the Kane Gap, tropical NE Atlantic Ocean |
topic_facet |
Geography. Anthropology. Recreation G Environmental sciences GE1-350 |
description |
We study low-frequency properties of the Antarctic Bottom Water (AABW) flow through the Kane Gap (9° N) in the Atlantic Ocean. The measurements in the Kane Gap include five visits with CTD (Conductivity-Temperature-Depth) sections in 2009–2012 and a year-long record of currents on a mooring using three AquaDopp current meters. We found an alternating regime of flow, which changes direction several times during a year. The seasonal signal seems to dominate. The maximum daily average values of southerly velocities reach 0.20 m s −1 , while the greatest north-northwesterly velocity is as high as 0.15 m s −1 . The velocity and transport at the bottom are aligned along the slope of a local hill near the southwestern side of the gap. The distribution of velocity directions at the upper boundary of AABW is wider. The transport of AABW (Θ < 1.9 °C) based on the mooring and LADCP (Lowered Acoustic Doppler Current Profiler) data varies approximately within ±0.35 Sv in the northern and southern directions. The annual mean AABW transport through the Kane Gap is almost zero. |
format |
Article in Journal/Newspaper |
author |
E. G. Morozov R. Y. Tarakanov H. van Haren |
author_facet |
E. G. Morozov R. Y. Tarakanov H. van Haren |
author_sort |
E. G. Morozov |
title |
Transport of Antarctic bottom water through the Kane Gap, tropical NE Atlantic Ocean |
title_short |
Transport of Antarctic bottom water through the Kane Gap, tropical NE Atlantic Ocean |
title_full |
Transport of Antarctic bottom water through the Kane Gap, tropical NE Atlantic Ocean |
title_fullStr |
Transport of Antarctic bottom water through the Kane Gap, tropical NE Atlantic Ocean |
title_full_unstemmed |
Transport of Antarctic bottom water through the Kane Gap, tropical NE Atlantic Ocean |
title_sort |
transport of antarctic bottom water through the kane gap, tropical ne atlantic ocean |
publisher |
Copernicus Publications |
publishDate |
2013 |
url |
https://doi.org/10.5194/os-9-825-2013 https://doaj.org/article/e37b26874b8548229c45c2b83ec6b268 |
long_lat |
ENVELOPE(-63.038,-63.038,-73.952,-73.952) |
geographic |
Antarctic The Antarctic Kane |
geographic_facet |
Antarctic The Antarctic Kane |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Ocean Science, Vol 9, Iss 5, Pp 825-835 (2013) |
op_relation |
http://www.ocean-sci.net/9/825/2013/os-9-825-2013.pdf https://doaj.org/toc/1812-0784 https://doaj.org/toc/1812-0792 doi:10.5194/os-9-825-2013 1812-0784 1812-0792 https://doaj.org/article/e37b26874b8548229c45c2b83ec6b268 |
op_doi |
https://doi.org/10.5194/os-9-825-2013 |
container_title |
Ocean Science |
container_volume |
9 |
container_issue |
5 |
container_start_page |
825 |
op_container_end_page |
835 |
_version_ |
1766275296408895488 |