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Hydrographic conditions of a continental shelf region in the Northwest African Upwelling System from in-situ data

This study investigates the hydrographic and dynamic properties of the continental shelf region between Cape Juby (28.5 °N) and Agadir (30.4 °N) within the Moroccan Sub-region of the North West African Upwelling System. Data came from two cruises conducted in June (beginning of summer) and November...

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Main Author: Juby, Paul Robert
Other Authors: Vichi, Marcello
Format: Thesis
Language:English
Published: Department of Biological Sciences 2016
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access_status_str Open Access
author Juby, Paul Robert
author2 Vichi, Marcello
author_browse Juby, Paul Robert
Vichi, Marcello
author_facet Vichi, Marcello
Juby, Paul Robert
author_sort Juby, Paul Robert
collection Thesis
description This study investigates the hydrographic and dynamic properties of the continental shelf region between Cape Juby (28.5 °N) and Agadir (30.4 °N) within the Moroccan Sub-region of the North West African Upwelling System. Data came from two cruises conducted in June (beginning of summer) and November (end of autumn) 2013. Coastal upwelling was obvious in both cruises in the in-situ temperature and salinity data as well as in remotely sensed sea surface temperature maps. ADCP data showed the presence of a strong jet like current associated with enhanced upwelling off Cape Juby. This strong quasi-permanent upwelling center was observed during both cruises. It results from the orientation of this portion of coast which is aligned with the dominant wind direction, as well as a wind intensification near the cape. The presence of a secondary upwelling front was also observed near the shelf break. It was accompanied by an intense baroclinic jet. The EK60 data showed evidence of internal waves as well as small and mesoscale turbulence that were probably strongly interacting with the mean upwelling circulation and made a straightforward interpretation of the data quite challenging. However, this study revealed the main physical processes of this poorly studied region, as well as their seasonal variability.
format Thesis
id oai:open.uct.ac.za:11427/19971
institution University of Cape Town (South Africa)
language eng
last_indexed 2026-06-10T12:33:45.686Z
license_str Not specified — see source repository
provenance_str_mv Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository
publishDate 2016
publishDateRange 2016
publishDateSort 2016
publisher Department of Biological Sciences
publisherStr Department of Biological Sciences
record_format dspace
source_str UCTD — University of Cape Town Open Access Repository
spelling oai:open.uct.ac.za:11427/19971 Hydrographic conditions of a continental shelf region in the Northwest African Upwelling System from in-situ data Juby, Paul Robert Vichi, Marcello Deschamps, Anne Meunier, Thomas Floc'h, France Applied Marine Science This study investigates the hydrographic and dynamic properties of the continental shelf region between Cape Juby (28.5 °N) and Agadir (30.4 °N) within the Moroccan Sub-region of the North West African Upwelling System. Data came from two cruises conducted in June (beginning of summer) and November (end of autumn) 2013. Coastal upwelling was obvious in both cruises in the in-situ temperature and salinity data as well as in remotely sensed sea surface temperature maps. ADCP data showed the presence of a strong jet like current associated with enhanced upwelling off Cape Juby. This strong quasi-permanent upwelling center was observed during both cruises. It results from the orientation of this portion of coast which is aligned with the dominant wind direction, as well as a wind intensification near the cape. The presence of a secondary upwelling front was also observed near the shelf break. It was accompanied by an intense baroclinic jet. The EK60 data showed evidence of internal waves as well as small and mesoscale turbulence that were probably strongly interacting with the mean upwelling circulation and made a straightforward interpretation of the data quite challenging. However, this study revealed the main physical processes of this poorly studied region, as well as their seasonal variability. 2016-06-09T11:19:26Z 2016-06-09T11:19:26Z 2015 Master Thesis Masters MSc http://hdl.handle.net/11427/19971 eng application/pdf Department of Biological Sciences Faculty of Science University of Cape Town
spellingShingle Applied Marine Science
Juby, Paul Robert
Hydrographic conditions of a continental shelf region in the Northwest African Upwelling System from in-situ data
thesis_degree_str Master's
title Hydrographic conditions of a continental shelf region in the Northwest African Upwelling System from in-situ data
title_full Hydrographic conditions of a continental shelf region in the Northwest African Upwelling System from in-situ data
title_fullStr Hydrographic conditions of a continental shelf region in the Northwest African Upwelling System from in-situ data
title_full_unstemmed Hydrographic conditions of a continental shelf region in the Northwest African Upwelling System from in-situ data
title_short Hydrographic conditions of a continental shelf region in the Northwest African Upwelling System from in-situ data
title_sort hydrographic conditions of a continental shelf region in the northwest african upwelling system from in situ data
topic Applied Marine Science
url http://hdl.handle.net/11427/19971
work_keys_str_mv AT jubypaulrobert hydrographicconditionsofacontinentalshelfregioninthenorthwestafricanupwellingsystemfrominsitudata