Water mass analysis along 22 °N in the subtropical North Atlantic for the JC150 cruise (GEOTRACES, GApr08)
International audience This study presents a water mass analysis along the JC150 section in the subtropical North Atlantic, based on hydrographic and nutrient data, by combining an extended optimum multiparameter analysis (OMPA) with a Lagrangian particle tracking experiment (LPTE). This combination...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
---|---|
Main Authors: | , , , , , , , , |
Other Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2020
|
Subjects: | |
Online Access: | https://hal.science/hal-03101871 https://hal.science/hal-03101871/document https://hal.science/hal-03101871/file/Deep_Sea_Research_Lise_Artigue_Resubmission-3%20-Final%20de%20chez%20final.pdf https://doi.org/10.1016/j.dsr.2020.103230 |
id |
ftinsu:oai:HAL:hal-03101871v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
Water mass Optimum multiparameter analysis (OMPA) Lagrangian particle tracking experiment subtropical North Atlantic JC150 GEOTRACES [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
Water mass Optimum multiparameter analysis (OMPA) Lagrangian particle tracking experiment subtropical North Atlantic JC150 GEOTRACES [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Artigue, Lise Lacan, F. van Gennip, Simon Lohan, Maeve Wyatt, Neil Woodward, E. Malcolm S. Mahaffey, Claire Hopkins, Joanne Drillet, Yann Water mass analysis along 22 °N in the subtropical North Atlantic for the JC150 cruise (GEOTRACES, GApr08) |
topic_facet |
Water mass Optimum multiparameter analysis (OMPA) Lagrangian particle tracking experiment subtropical North Atlantic JC150 GEOTRACES [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience This study presents a water mass analysis along the JC150 section in the subtropical North Atlantic, based on hydrographic and nutrient data, by combining an extended optimum multiparameter analysis (OMPA) with a Lagrangian particle tracking experiment (LPTE). This combination, which was proposed for the first time, aided in better constraining the OMPA end-member choice and providing information about their trajectories. It also enabled tracing the water mass origins in surface layers, which cannot be achieved with an OMPA. The surface layers were occupied by a shallow type of Eastern South Atlantic Central Water (ESACW) with traces of the Amazon plume in the west. Western North Atlantic Central Water dominates from 100 to 500 m, while the 13 °C-ESACW contribution occurs marginally deeper (500–900 m). At approximately 700 m, Antarctic Intermediate Water (AAIW) dominates the west of the Mid-Atlantic Ridge (MAR), while Mediterranean Water dominates the east with a small but non-negligible contribution down to 3500 m. Below AAIW, Upper Circumpolar Deep Water (UCDW) is observed throughout section (900–1250 m). Labrador Sea Water (LSW) is found centered at 1500 m, where the LPTE highlights an eastern LSW route from the eastern North Atlantic to the eastern subtropical Atlantic, which was not previously reported. North East Atlantic Deep Water (encompassing a contribution of Iceland-Scotland Overflow Water) is centered at ~2500 m, while North West Atlantic Bottom Water (NWABW, encompassing a contribution of Denmark Strait Overflow Water) is principally localized in the west of the MAR in the range of 3500–5000 m. NWABW is also present in significant proportions (>25%) in the east of the MAR, suggesting a crossing of the MAR possibly through the Kane fracture zone. This feature has not been investigated so far. Finally, Antarctic Bottom Water is present in deep waters throughout the section, mainly in the west of the MAR. Source waters have been characterized from GEOTRACES sections, which ... |
author2 |
Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) University of Southampton School of Environmental Sciences Liverpool University of Liverpool National Oceanography Centre (NOC) |
format |
Article in Journal/Newspaper |
author |
Artigue, Lise Lacan, F. van Gennip, Simon Lohan, Maeve Wyatt, Neil Woodward, E. Malcolm S. Mahaffey, Claire Hopkins, Joanne Drillet, Yann |
author_facet |
Artigue, Lise Lacan, F. van Gennip, Simon Lohan, Maeve Wyatt, Neil Woodward, E. Malcolm S. Mahaffey, Claire Hopkins, Joanne Drillet, Yann |
author_sort |
Artigue, Lise |
title |
Water mass analysis along 22 °N in the subtropical North Atlantic for the JC150 cruise (GEOTRACES, GApr08) |
title_short |
Water mass analysis along 22 °N in the subtropical North Atlantic for the JC150 cruise (GEOTRACES, GApr08) |
title_full |
Water mass analysis along 22 °N in the subtropical North Atlantic for the JC150 cruise (GEOTRACES, GApr08) |
title_fullStr |
Water mass analysis along 22 °N in the subtropical North Atlantic for the JC150 cruise (GEOTRACES, GApr08) |
title_full_unstemmed |
Water mass analysis along 22 °N in the subtropical North Atlantic for the JC150 cruise (GEOTRACES, GApr08) |
title_sort |
water mass analysis along 22 °n in the subtropical north atlantic for the jc150 cruise (geotraces, gapr08) |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-03101871 https://hal.science/hal-03101871/document https://hal.science/hal-03101871/file/Deep_Sea_Research_Lise_Artigue_Resubmission-3%20-Final%20de%20chez%20final.pdf https://doi.org/10.1016/j.dsr.2020.103230 |
long_lat |
ENVELOPE(-63.038,-63.038,-73.952,-73.952) |
geographic |
Antarctic Kane Mid-Atlantic Ridge |
geographic_facet |
Antarctic Kane Mid-Atlantic Ridge |
genre |
Antarc* Antarctic Denmark Strait Iceland Labrador Sea North Atlantic North East Atlantic North West Atlantic |
genre_facet |
Antarc* Antarctic Denmark Strait Iceland Labrador Sea North Atlantic North East Atlantic North West Atlantic |
op_source |
ISSN: 0967-0637 Deep Sea Research Part I: Oceanographic Research Papers https://hal.science/hal-03101871 Deep Sea Research Part I: Oceanographic Research Papers, 2020, 158, pp.103230. ⟨10.1016/j.dsr.2020.103230⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2020.103230 hal-03101871 https://hal.science/hal-03101871 https://hal.science/hal-03101871/document https://hal.science/hal-03101871/file/Deep_Sea_Research_Lise_Artigue_Resubmission-3%20-Final%20de%20chez%20final.pdf doi:10.1016/j.dsr.2020.103230 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.dsr.2020.103230 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
158 |
container_start_page |
103230 |
_version_ |
1785523231442075648 |
spelling |
ftinsu:oai:HAL:hal-03101871v1 2023-12-17T10:20:32+01:00 Water mass analysis along 22 °N in the subtropical North Atlantic for the JC150 cruise (GEOTRACES, GApr08) Artigue, Lise Lacan, F. van Gennip, Simon Lohan, Maeve Wyatt, Neil Woodward, E. Malcolm S. Mahaffey, Claire Hopkins, Joanne Drillet, Yann Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) University of Southampton School of Environmental Sciences Liverpool University of Liverpool National Oceanography Centre (NOC) 2020 https://hal.science/hal-03101871 https://hal.science/hal-03101871/document https://hal.science/hal-03101871/file/Deep_Sea_Research_Lise_Artigue_Resubmission-3%20-Final%20de%20chez%20final.pdf https://doi.org/10.1016/j.dsr.2020.103230 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2020.103230 hal-03101871 https://hal.science/hal-03101871 https://hal.science/hal-03101871/document https://hal.science/hal-03101871/file/Deep_Sea_Research_Lise_Artigue_Resubmission-3%20-Final%20de%20chez%20final.pdf doi:10.1016/j.dsr.2020.103230 info:eu-repo/semantics/OpenAccess ISSN: 0967-0637 Deep Sea Research Part I: Oceanographic Research Papers https://hal.science/hal-03101871 Deep Sea Research Part I: Oceanographic Research Papers, 2020, 158, pp.103230. ⟨10.1016/j.dsr.2020.103230⟩ Water mass Optimum multiparameter analysis (OMPA) Lagrangian particle tracking experiment subtropical North Atlantic JC150 GEOTRACES [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2020 ftinsu https://doi.org/10.1016/j.dsr.2020.103230 2023-11-22T17:38:20Z International audience This study presents a water mass analysis along the JC150 section in the subtropical North Atlantic, based on hydrographic and nutrient data, by combining an extended optimum multiparameter analysis (OMPA) with a Lagrangian particle tracking experiment (LPTE). This combination, which was proposed for the first time, aided in better constraining the OMPA end-member choice and providing information about their trajectories. It also enabled tracing the water mass origins in surface layers, which cannot be achieved with an OMPA. The surface layers were occupied by a shallow type of Eastern South Atlantic Central Water (ESACW) with traces of the Amazon plume in the west. Western North Atlantic Central Water dominates from 100 to 500 m, while the 13 °C-ESACW contribution occurs marginally deeper (500–900 m). At approximately 700 m, Antarctic Intermediate Water (AAIW) dominates the west of the Mid-Atlantic Ridge (MAR), while Mediterranean Water dominates the east with a small but non-negligible contribution down to 3500 m. Below AAIW, Upper Circumpolar Deep Water (UCDW) is observed throughout section (900–1250 m). Labrador Sea Water (LSW) is found centered at 1500 m, where the LPTE highlights an eastern LSW route from the eastern North Atlantic to the eastern subtropical Atlantic, which was not previously reported. North East Atlantic Deep Water (encompassing a contribution of Iceland-Scotland Overflow Water) is centered at ~2500 m, while North West Atlantic Bottom Water (NWABW, encompassing a contribution of Denmark Strait Overflow Water) is principally localized in the west of the MAR in the range of 3500–5000 m. NWABW is also present in significant proportions (>25%) in the east of the MAR, suggesting a crossing of the MAR possibly through the Kane fracture zone. This feature has not been investigated so far. Finally, Antarctic Bottom Water is present in deep waters throughout the section, mainly in the west of the MAR. Source waters have been characterized from GEOTRACES sections, which ... Article in Journal/Newspaper Antarc* Antarctic Denmark Strait Iceland Labrador Sea North Atlantic North East Atlantic North West Atlantic Institut national des sciences de l'Univers: HAL-INSU Antarctic Kane ENVELOPE(-63.038,-63.038,-73.952,-73.952) Mid-Atlantic Ridge Deep Sea Research Part I: Oceanographic Research Papers 158 103230 |