Marked contrast in wind-driven upwelling on the southeastern Nova Scotia coast in July of two years differing in ENSO conditions
Upwelling occurs on several coasts of the world, but it has mostly been studied on eastern ocean boundaries. We investigated upwelling on a western ocean boundary for which limited information exists. Using daily in-situ data on sea surface temperature (SST), we found a marked contrast in coastal co...
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Wydział Oceanografii i Geografii Uniwersytetu Gdańskiego
2020
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ftunivgdanskojs:oai:ojsug.pkp.sfu.ca:article/7761 2023-05-15T18:16:01+02:00 Marked contrast in wind-driven upwelling on the southeastern Nova Scotia coast in July of two years differing in ENSO conditions Scrosati, Ricardo A. Ellrich, Julius A. 2020-03-26 application/pdf https://czasopisma.bg.ug.edu.pl/index.php/oandhs/article/view/7761 eng eng Wydział Oceanografii i Geografii Uniwersytetu Gdańskiego https://czasopisma.bg.ug.edu.pl/index.php/oandhs/article/view/7761/6896 https://czasopisma.bg.ug.edu.pl/index.php/oandhs/article/view/7761 Oceanological and Hydrobiological Studies; Vol. 49 No. 1 (2020); 81-87 Oceanological and Hydrobiological Studies; Tom 49 Nr 1 (2020); 81-87 1897-3191 1730-413X Atlantic Canada Bakun’s index Nova Scotia sea surface temperature upwelling info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2020 ftunivgdanskojs 2023-02-07T18:10:20Z Upwelling occurs on several coasts of the world, but it has mostly been studied on eastern ocean boundaries. We investigated upwelling on a western ocean boundary for which limited information exists. Using daily in-situ data on sea surface temperature (SST), we found a marked contrast in coastal cooling between July 2014 (pronounced) and July 2015 (weak) at two locations 110 km apart on the Atlantic coast of Nova Scotia, Canada. These findings are consistent with a marked interannual difference in winddriven upwelling. On the one hand, southwesterlies (which cause upwelling on this coast) were more frequent in July 2014 than in July 2015. On the other hand, Bakun’s upwelling index (which is based on wind data and geographic information) indicated that coastal upwelling was more common and intense in July 2014 than in July 2015, while the reverse was true for downwelling. Interestingly, a strong El Niño event occurred in July 2015, while no El Niño (or La Niña) conditions happened in July 2014. In a recent book evaluating upwelling systems around the world, the system that is the focus of the present study was not included. Therefore, our findings should stimulate future research on upwelling on the Atlantic Canadian coast, in that way helping to further develop the knowledge base for western ocean boundaries. Upwelling occurs on several coasts of the world, but it has mostly been studied on eastern ocean boundaries. We investigated upwelling on a western ocean boundary for which limited information exists. Using daily in-situ data on sea surface temperature (SST), we found a marked contrast in coastal cooling between July 2014 (pronounced) and July 2015 (weak) at two locations 110 km apart on the Atlantic coast of Nova Scotia, Canada. These findings are consistent with a marked interannual difference in winddriven upwelling. On the one hand, southwesterlies (which cause upwelling on this coast) were more frequent in July 2014 than in July 2015. On the other hand, Bakun’s upwelling index (which is based on ... Article in Journal/Newspaper Scotia Sea University Scientific Journals University of Gdansk (UGN) Canada Scotia Sea |
institution |
Open Polar |
collection |
University Scientific Journals University of Gdansk (UGN) |
op_collection_id |
ftunivgdanskojs |
language |
English |
topic |
Atlantic Canada Bakun’s index Nova Scotia sea surface temperature upwelling |
spellingShingle |
Atlantic Canada Bakun’s index Nova Scotia sea surface temperature upwelling Scrosati, Ricardo A. Ellrich, Julius A. Marked contrast in wind-driven upwelling on the southeastern Nova Scotia coast in July of two years differing in ENSO conditions |
topic_facet |
Atlantic Canada Bakun’s index Nova Scotia sea surface temperature upwelling |
description |
Upwelling occurs on several coasts of the world, but it has mostly been studied on eastern ocean boundaries. We investigated upwelling on a western ocean boundary for which limited information exists. Using daily in-situ data on sea surface temperature (SST), we found a marked contrast in coastal cooling between July 2014 (pronounced) and July 2015 (weak) at two locations 110 km apart on the Atlantic coast of Nova Scotia, Canada. These findings are consistent with a marked interannual difference in winddriven upwelling. On the one hand, southwesterlies (which cause upwelling on this coast) were more frequent in July 2014 than in July 2015. On the other hand, Bakun’s upwelling index (which is based on wind data and geographic information) indicated that coastal upwelling was more common and intense in July 2014 than in July 2015, while the reverse was true for downwelling. Interestingly, a strong El Niño event occurred in July 2015, while no El Niño (or La Niña) conditions happened in July 2014. In a recent book evaluating upwelling systems around the world, the system that is the focus of the present study was not included. Therefore, our findings should stimulate future research on upwelling on the Atlantic Canadian coast, in that way helping to further develop the knowledge base for western ocean boundaries. Upwelling occurs on several coasts of the world, but it has mostly been studied on eastern ocean boundaries. We investigated upwelling on a western ocean boundary for which limited information exists. Using daily in-situ data on sea surface temperature (SST), we found a marked contrast in coastal cooling between July 2014 (pronounced) and July 2015 (weak) at two locations 110 km apart on the Atlantic coast of Nova Scotia, Canada. These findings are consistent with a marked interannual difference in winddriven upwelling. On the one hand, southwesterlies (which cause upwelling on this coast) were more frequent in July 2014 than in July 2015. On the other hand, Bakun’s upwelling index (which is based on ... |
format |
Article in Journal/Newspaper |
author |
Scrosati, Ricardo A. Ellrich, Julius A. |
author_facet |
Scrosati, Ricardo A. Ellrich, Julius A. |
author_sort |
Scrosati, Ricardo A. |
title |
Marked contrast in wind-driven upwelling on the southeastern Nova Scotia coast in July of two years differing in ENSO conditions |
title_short |
Marked contrast in wind-driven upwelling on the southeastern Nova Scotia coast in July of two years differing in ENSO conditions |
title_full |
Marked contrast in wind-driven upwelling on the southeastern Nova Scotia coast in July of two years differing in ENSO conditions |
title_fullStr |
Marked contrast in wind-driven upwelling on the southeastern Nova Scotia coast in July of two years differing in ENSO conditions |
title_full_unstemmed |
Marked contrast in wind-driven upwelling on the southeastern Nova Scotia coast in July of two years differing in ENSO conditions |
title_sort |
marked contrast in wind-driven upwelling on the southeastern nova scotia coast in july of two years differing in enso conditions |
publisher |
Wydział Oceanografii i Geografii Uniwersytetu Gdańskiego |
publishDate |
2020 |
url |
https://czasopisma.bg.ug.edu.pl/index.php/oandhs/article/view/7761 |
geographic |
Canada Scotia Sea |
geographic_facet |
Canada Scotia Sea |
genre |
Scotia Sea |
genre_facet |
Scotia Sea |
op_source |
Oceanological and Hydrobiological Studies; Vol. 49 No. 1 (2020); 81-87 Oceanological and Hydrobiological Studies; Tom 49 Nr 1 (2020); 81-87 1897-3191 1730-413X |
op_relation |
https://czasopisma.bg.ug.edu.pl/index.php/oandhs/article/view/7761/6896 https://czasopisma.bg.ug.edu.pl/index.php/oandhs/article/view/7761 |
_version_ |
1766189436233580544 |