Unraveling Salinity Extreme Events in Coastal Environments: A Winter Focus on the Bay of Brest
Extreme weather events affect coastal marine ecosystems. The increase in intensity and occurrence of such events drive modifications in coastal hydrology and hydrodynamics. Here, focusing on the winter period (from December to March), we investigated multi-decade (2000–2018) changes in the hydrologi...
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ftdoajarticles:oai:doaj.org/article:6550988dc6254502bc10906d0fec2944 2023-05-15T17:34:30+02:00 Unraveling Salinity Extreme Events in Coastal Environments: A Winter Focus on the Bay of Brest Coline Poppeschi Guillaume Charria Eric Goberville Peggy Rimmelin-Maury Nicolas Barrier Sébastien Petton Maximilian Unterberger Emilie Grossteffan Michel Repecaud Loïc Quéméner Sébastien Theetten Jean-François Le Roux Paul Tréguer 2021-07-01T00:00:00Z https://doi.org/10.3389/fmars.2021.705403 https://doaj.org/article/6550988dc6254502bc10906d0fec2944 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2021.705403/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2021.705403 https://doaj.org/article/6550988dc6254502bc10906d0fec2944 Frontiers in Marine Science, Vol 8 (2021) Bay of Brest salinity river plume atmospheric weather regimes extreme events Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2021 ftdoajarticles https://doi.org/10.3389/fmars.2021.705403 2022-12-31T07:59:47Z Extreme weather events affect coastal marine ecosystems. The increase in intensity and occurrence of such events drive modifications in coastal hydrology and hydrodynamics. Here, focusing on the winter period (from December to March), we investigated multi-decade (2000–2018) changes in the hydrological properties of the Bay of Brest (French Atlantic coast) as an example of the response of a semi-enclosed bay to extreme weather episodes and large-scale atmospheric circulation patterns. The relationships between extreme weather events and severe low salinity conditions (as a proxy for changes in water density) were investigated using high-frequency in situ observations and high-resolution numerical simulations. The identification of intense episodes was based on the timing, duration, and annual occurrence of extreme events. By examining the interannual variability of extreme low salinity events, we detect a patent influence of local and regional weather conditions on atmospheric and oceanic circulation patterns, precipitation, and river runoff. We revealed that low salinity events in Brittany were controlled by large-scale forcings: they prevailed during the positive phase of the North Atlantic Oscillation and periods of low occurrences of the Atlantic Ridge weather regime. The increase in severe storms observed in western France since 2010 has led to a doubling of the occurrence and duration of extreme low salinity events in Brittany. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Directory of Open Access Journals: DOAJ Articles Frontiers in Marine Science 8 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Bay of Brest salinity river plume atmospheric weather regimes extreme events Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
Bay of Brest salinity river plume atmospheric weather regimes extreme events Science Q General. Including nature conservation geographical distribution QH1-199.5 Coline Poppeschi Guillaume Charria Eric Goberville Peggy Rimmelin-Maury Nicolas Barrier Sébastien Petton Maximilian Unterberger Emilie Grossteffan Michel Repecaud Loïc Quéméner Sébastien Theetten Jean-François Le Roux Paul Tréguer Unraveling Salinity Extreme Events in Coastal Environments: A Winter Focus on the Bay of Brest |
topic_facet |
Bay of Brest salinity river plume atmospheric weather regimes extreme events Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Extreme weather events affect coastal marine ecosystems. The increase in intensity and occurrence of such events drive modifications in coastal hydrology and hydrodynamics. Here, focusing on the winter period (from December to March), we investigated multi-decade (2000–2018) changes in the hydrological properties of the Bay of Brest (French Atlantic coast) as an example of the response of a semi-enclosed bay to extreme weather episodes and large-scale atmospheric circulation patterns. The relationships between extreme weather events and severe low salinity conditions (as a proxy for changes in water density) were investigated using high-frequency in situ observations and high-resolution numerical simulations. The identification of intense episodes was based on the timing, duration, and annual occurrence of extreme events. By examining the interannual variability of extreme low salinity events, we detect a patent influence of local and regional weather conditions on atmospheric and oceanic circulation patterns, precipitation, and river runoff. We revealed that low salinity events in Brittany were controlled by large-scale forcings: they prevailed during the positive phase of the North Atlantic Oscillation and periods of low occurrences of the Atlantic Ridge weather regime. The increase in severe storms observed in western France since 2010 has led to a doubling of the occurrence and duration of extreme low salinity events in Brittany. |
format |
Article in Journal/Newspaper |
author |
Coline Poppeschi Guillaume Charria Eric Goberville Peggy Rimmelin-Maury Nicolas Barrier Sébastien Petton Maximilian Unterberger Emilie Grossteffan Michel Repecaud Loïc Quéméner Sébastien Theetten Jean-François Le Roux Paul Tréguer |
author_facet |
Coline Poppeschi Guillaume Charria Eric Goberville Peggy Rimmelin-Maury Nicolas Barrier Sébastien Petton Maximilian Unterberger Emilie Grossteffan Michel Repecaud Loïc Quéméner Sébastien Theetten Jean-François Le Roux Paul Tréguer |
author_sort |
Coline Poppeschi |
title |
Unraveling Salinity Extreme Events in Coastal Environments: A Winter Focus on the Bay of Brest |
title_short |
Unraveling Salinity Extreme Events in Coastal Environments: A Winter Focus on the Bay of Brest |
title_full |
Unraveling Salinity Extreme Events in Coastal Environments: A Winter Focus on the Bay of Brest |
title_fullStr |
Unraveling Salinity Extreme Events in Coastal Environments: A Winter Focus on the Bay of Brest |
title_full_unstemmed |
Unraveling Salinity Extreme Events in Coastal Environments: A Winter Focus on the Bay of Brest |
title_sort |
unraveling salinity extreme events in coastal environments: a winter focus on the bay of brest |
publisher |
Frontiers Media S.A. |
publishDate |
2021 |
url |
https://doi.org/10.3389/fmars.2021.705403 https://doaj.org/article/6550988dc6254502bc10906d0fec2944 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Frontiers in Marine Science, Vol 8 (2021) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2021.705403/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2021.705403 https://doaj.org/article/6550988dc6254502bc10906d0fec2944 |
op_doi |
https://doi.org/10.3389/fmars.2021.705403 |
container_title |
Frontiers in Marine Science |
container_volume |
8 |
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1766133371747958784 |