Large and local-scale influences on physical and chemical characteristics of coastal waters of Western Europe during winter
There is now a strong scientific consensus that coastal marine systems of Western Europe are highly sensitive to the combined effects of natural climate variability and anthropogenic climate change. However, it still remains challenging to assess the spatial and temporal scales at which climate infl...
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Online Access: | https://archimer.ifremer.fr/doc/00192/30327/28801.pdf https://archimer.ifremer.fr/doc/00192/30327/29065.pdf https://doi.org/10.1016/j.jmarsys.2014.05.019 https://archimer.ifremer.fr/doc/00192/30327/ |
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ftarchimer:oai:archimer.ifremer.fr:30327 2023-05-15T17:31:36+02:00 Large and local-scale influences on physical and chemical characteristics of coastal waters of Western Europe during winter Treguer, Paul Goberville, Eric Barrier, Nicolas L'Helguen, Stephane Morin, Pascal Bozec, Yann Rimmelin-maury, Peggy Czamanski, Marie Grossteffan, Emilie Cariou, Thierry Repecaud, Michel Quemener, Loic 2014-11 application/pdf https://archimer.ifremer.fr/doc/00192/30327/28801.pdf https://archimer.ifremer.fr/doc/00192/30327/29065.pdf https://doi.org/10.1016/j.jmarsys.2014.05.019 https://archimer.ifremer.fr/doc/00192/30327/ eng eng Elsevier Science Bv https://archimer.ifremer.fr/doc/00192/30327/28801.pdf https://archimer.ifremer.fr/doc/00192/30327/29065.pdf doi:10.1016/j.jmarsys.2014.05.019 https://archimer.ifremer.fr/doc/00192/30327/ 2014 Elsevier B.V. All rights reserved. info:eu-repo/semantics/openAccess restricted use Journal Of Marine Systems (0924-7963) (Elsevier Science Bv), 2014-11 , Vol. 139 , P. 79-90 Coastal systems Climate variability Large-scale hydro-climatic indices River inputs Time-series Weather regimes text Publication info:eu-repo/semantics/article 2014 ftarchimer https://doi.org/10.1016/j.jmarsys.2014.05.019 2021-09-23T20:24:29Z There is now a strong scientific consensus that coastal marine systems of Western Europe are highly sensitive to the combined effects of natural climate variability and anthropogenic climate change. However, it still remains challenging to assess the spatial and temporal scales at which climate influence operates. While large-scale hydro-climatic indices, such as the North Atlantic Oscillation (NAO) or the East Atlantic Pattern (EAP) and the weather regimes such as the Atlantic Ridge (AR), are known to be relevant predictors of physical processes, changes in coastal waters can also be related to local hydro-meteorological and geochemical forcing. Here, we study the temporal variability of physical and chemical characteristics of coastal waters located at about 48°N over the period 1998-2013 using (1) sea surface temperature, (2) sea surface salinity and (3) nutrient concentration observations for two coastal sites located at the outlet of the Bay of Brest and off Roscoff, (4) river discharges of the major tributaries close to these two sites and (5) regional and local precipitation data over the region of interest. Focusing on the winter months, we characterize the physical and chemical variability of these coastal waters and document changes in both precipitation and river runoffs. Our study reveals that variability in coastal waters is connected to the large-scale North Atlantic atmospheric circulation but is also partly explained by local river influences. Indeed, while the NAO is strongly related to changes in sea surface temperature at the Brest and Roscoff sites, the EAP and the AR have a major influence on precipitations, which in turn modulate river discharges that impact sea surface salinity at the scale of the two coastal stations. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Journal of Marine Systems 139 79 90 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Coastal systems Climate variability Large-scale hydro-climatic indices River inputs Time-series Weather regimes |
spellingShingle |
Coastal systems Climate variability Large-scale hydro-climatic indices River inputs Time-series Weather regimes Treguer, Paul Goberville, Eric Barrier, Nicolas L'Helguen, Stephane Morin, Pascal Bozec, Yann Rimmelin-maury, Peggy Czamanski, Marie Grossteffan, Emilie Cariou, Thierry Repecaud, Michel Quemener, Loic Large and local-scale influences on physical and chemical characteristics of coastal waters of Western Europe during winter |
topic_facet |
Coastal systems Climate variability Large-scale hydro-climatic indices River inputs Time-series Weather regimes |
description |
There is now a strong scientific consensus that coastal marine systems of Western Europe are highly sensitive to the combined effects of natural climate variability and anthropogenic climate change. However, it still remains challenging to assess the spatial and temporal scales at which climate influence operates. While large-scale hydro-climatic indices, such as the North Atlantic Oscillation (NAO) or the East Atlantic Pattern (EAP) and the weather regimes such as the Atlantic Ridge (AR), are known to be relevant predictors of physical processes, changes in coastal waters can also be related to local hydro-meteorological and geochemical forcing. Here, we study the temporal variability of physical and chemical characteristics of coastal waters located at about 48°N over the period 1998-2013 using (1) sea surface temperature, (2) sea surface salinity and (3) nutrient concentration observations for two coastal sites located at the outlet of the Bay of Brest and off Roscoff, (4) river discharges of the major tributaries close to these two sites and (5) regional and local precipitation data over the region of interest. Focusing on the winter months, we characterize the physical and chemical variability of these coastal waters and document changes in both precipitation and river runoffs. Our study reveals that variability in coastal waters is connected to the large-scale North Atlantic atmospheric circulation but is also partly explained by local river influences. Indeed, while the NAO is strongly related to changes in sea surface temperature at the Brest and Roscoff sites, the EAP and the AR have a major influence on precipitations, which in turn modulate river discharges that impact sea surface salinity at the scale of the two coastal stations. |
format |
Article in Journal/Newspaper |
author |
Treguer, Paul Goberville, Eric Barrier, Nicolas L'Helguen, Stephane Morin, Pascal Bozec, Yann Rimmelin-maury, Peggy Czamanski, Marie Grossteffan, Emilie Cariou, Thierry Repecaud, Michel Quemener, Loic |
author_facet |
Treguer, Paul Goberville, Eric Barrier, Nicolas L'Helguen, Stephane Morin, Pascal Bozec, Yann Rimmelin-maury, Peggy Czamanski, Marie Grossteffan, Emilie Cariou, Thierry Repecaud, Michel Quemener, Loic |
author_sort |
Treguer, Paul |
title |
Large and local-scale influences on physical and chemical characteristics of coastal waters of Western Europe during winter |
title_short |
Large and local-scale influences on physical and chemical characteristics of coastal waters of Western Europe during winter |
title_full |
Large and local-scale influences on physical and chemical characteristics of coastal waters of Western Europe during winter |
title_fullStr |
Large and local-scale influences on physical and chemical characteristics of coastal waters of Western Europe during winter |
title_full_unstemmed |
Large and local-scale influences on physical and chemical characteristics of coastal waters of Western Europe during winter |
title_sort |
large and local-scale influences on physical and chemical characteristics of coastal waters of western europe during winter |
publisher |
Elsevier Science Bv |
publishDate |
2014 |
url |
https://archimer.ifremer.fr/doc/00192/30327/28801.pdf https://archimer.ifremer.fr/doc/00192/30327/29065.pdf https://doi.org/10.1016/j.jmarsys.2014.05.019 https://archimer.ifremer.fr/doc/00192/30327/ |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Journal Of Marine Systems (0924-7963) (Elsevier Science Bv), 2014-11 , Vol. 139 , P. 79-90 |
op_relation |
https://archimer.ifremer.fr/doc/00192/30327/28801.pdf https://archimer.ifremer.fr/doc/00192/30327/29065.pdf doi:10.1016/j.jmarsys.2014.05.019 https://archimer.ifremer.fr/doc/00192/30327/ |
op_rights |
2014 Elsevier B.V. All rights reserved. info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/j.jmarsys.2014.05.019 |
container_title |
Journal of Marine Systems |
container_volume |
139 |
container_start_page |
79 |
op_container_end_page |
90 |
_version_ |
1766129272415584256 |