Transient response of the Northwestern Iberian upwelling regime.
The hydrography and dynamics of NW Iberian margin were explored for July 2009, based on a set of in situ and remote sensing observations. Zonal sections of standard CTD casts, towed CTD (SeaSoar), Acoustic Doppler Current Profilers (ADCP) and Lagrangian surveys were made to characterize cycles of up...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2018-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC5957426?pdf=render |
| _version_ | 1819231520793034752 |
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| author | Nuno Gonçalo Ferreira Cordeiro Jesus Dubert Rita Nolasco Eric Desmond Barton |
| author_facet | Nuno Gonçalo Ferreira Cordeiro Jesus Dubert Rita Nolasco Eric Desmond Barton |
| author_sort | Nuno Gonçalo Ferreira Cordeiro |
| collection | DOAJ |
| description | The hydrography and dynamics of NW Iberian margin were explored for July 2009, based on a set of in situ and remote sensing observations. Zonal sections of standard CTD casts, towed CTD (SeaSoar), Acoustic Doppler Current Profilers (ADCP) and Lagrangian surveys were made to characterize cycles of upwelling and relaxation in this region. Two periods of northerly winds, bounded by relaxation periods, were responsible for the formation of an upwelling front extending to the shelf edge. An equatorward flow was quickly set up on the shelf responding to the northerly wind pulses. South of Cape Silleiro, the development and subsequent relaxation of an upwelling event was intensively surveyed in the shelf, following a Lagrangian drifter transported by the upwelling jet. This region is part of an upwelling center extending from Cape Silleiro to Porto, where the surface temperature was colder than the neighboring regions, under upwelling favorable winds. As these winds relaxed, persistent poleward flow developed, originating south of the upwelling center and consisting in an inner-shelf tongue of warm waters. During an event of strong southerly wind, the poleward flow was observed to extend to the whole continental shelf. Although the cruise was executed during summertime, the presence of river-plumes was observed over the shelf. The interaction of the plumes with the circulation on the shelf was also described in terms of coastal convergence and offshore advection. The sampling of the offshore and slope regions showed the presence of the Iberian poleward current offshore and a persistent equatorward flow over the upper slope. |
| first_indexed | 2024-12-23T11:46:16Z |
| format | Article |
| id | doaj.art-619fb4454eb14510957a4ef9bba273ec |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-23T11:46:16Z |
| publishDate | 2018-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-619fb4454eb14510957a4ef9bba273ec2022-12-21T17:48:20ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01135e019762710.1371/journal.pone.0197627Transient response of the Northwestern Iberian upwelling regime.Nuno Gonçalo Ferreira CordeiroJesus DubertRita NolascoEric Desmond BartonThe hydrography and dynamics of NW Iberian margin were explored for July 2009, based on a set of in situ and remote sensing observations. Zonal sections of standard CTD casts, towed CTD (SeaSoar), Acoustic Doppler Current Profilers (ADCP) and Lagrangian surveys were made to characterize cycles of upwelling and relaxation in this region. Two periods of northerly winds, bounded by relaxation periods, were responsible for the formation of an upwelling front extending to the shelf edge. An equatorward flow was quickly set up on the shelf responding to the northerly wind pulses. South of Cape Silleiro, the development and subsequent relaxation of an upwelling event was intensively surveyed in the shelf, following a Lagrangian drifter transported by the upwelling jet. This region is part of an upwelling center extending from Cape Silleiro to Porto, where the surface temperature was colder than the neighboring regions, under upwelling favorable winds. As these winds relaxed, persistent poleward flow developed, originating south of the upwelling center and consisting in an inner-shelf tongue of warm waters. During an event of strong southerly wind, the poleward flow was observed to extend to the whole continental shelf. Although the cruise was executed during summertime, the presence of river-plumes was observed over the shelf. The interaction of the plumes with the circulation on the shelf was also described in terms of coastal convergence and offshore advection. The sampling of the offshore and slope regions showed the presence of the Iberian poleward current offshore and a persistent equatorward flow over the upper slope.http://europepmc.org/articles/PMC5957426?pdf=render |
| spellingShingle | Nuno Gonçalo Ferreira Cordeiro Jesus Dubert Rita Nolasco Eric Desmond Barton Transient response of the Northwestern Iberian upwelling regime. PLoS ONE |
| title | Transient response of the Northwestern Iberian upwelling regime. |
| title_full | Transient response of the Northwestern Iberian upwelling regime. |
| title_fullStr | Transient response of the Northwestern Iberian upwelling regime. |
| title_full_unstemmed | Transient response of the Northwestern Iberian upwelling regime. |
| title_short | Transient response of the Northwestern Iberian upwelling regime. |
| title_sort | transient response of the northwestern iberian upwelling regime |
| url | http://europepmc.org/articles/PMC5957426?pdf=render |
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