Spatial and seasonal fluctuations in fresh submarine groundwater discharge revealed by marine continuous resistivity profiling

Submarine Groundwater Discharge (SGD) is a major pathway for the discharge of fresh and saline groundwater and associated dissolved compounds into marine environments. However, assessing SGD processes in coastal aquifers is challenging due to inaccessibility, dynamic conditions, complex subsurface g...

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Autores: Tur-Piedra, Jose, Ledo, Juanjo, Diego-Feliu, Marc|||0000-0002-4782-3210, Queralt, Pilar|||0000-0002-4195-4228, Marcuello, Álex|||0000-0002-6216-4436, Rodellas, Valentí|||0000-0002-5896-9987, Folch, Albert|||0000-0002-8490-1038
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:319959
Acceso en línea:https://ddd.uab.cat/record/319959
https://dx.doi.org/urn:doi:10.1038/s41598-024-75984-z
Access Level:acceso abierto
Palabra clave:Marine geophysics
SGD
Seasonality
Mediterranean sea
Electrical resistivity tomography
Coastal groundwater
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spelling Spatial and seasonal fluctuations in fresh submarine groundwater discharge revealed by marine continuous resistivity profilingTur-Piedra, JoseLedo, JuanjoDiego-Feliu, Marc|||0000-0002-4782-3210Queralt, Pilar|||0000-0002-4195-4228Marcuello, Álex|||0000-0002-6216-4436Rodellas, Valentí|||0000-0002-5896-9987Folch, Albert|||0000-0002-8490-1038Marine geophysicsSGDSeasonalityMediterranean seaElectrical resistivity tomographyCoastal groundwaterSubmarine Groundwater Discharge (SGD) is a major pathway for the discharge of fresh and saline groundwater and associated dissolved compounds into marine environments. However, assessing SGD processes in coastal aquifers is challenging due to inaccessibility, dynamic conditions, complex subsurface geology, and the need for long-term monitoring to capture temporal and spatial variations in SGD rates accurately. This study employs marine continuous resistivity profiling (MCRP) as a main method to assess the presence of freshwater or brackish SGD offshore and to examine its potential seasonal variations. The method has been applied in the coastal alluvial aquifer of Maresme (Spain) and validated with other methods to trace SGD, including salinity profiles, Ra isotopes, and piezometric levels. Several MCRP transects of 700 m long, perpendicular to the coastline, were performed in a coastal marine area to obtain electrical resistivity data of the seabed covering an area of 3 km2. The data was acquired in two field campaigns with contrasting hydrological conditions (dry and wet seasons). The MCRP results allow the identification of areas of fresh SGD in marine sediments, with a clear seasonal variability that indicates a higher discharge of fresh groundwater in the wet season. 22024-01-0120242024-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/319959https://dx.doi.org/urn:doi:10.1038/s41598-024-75984-zreponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengAgencia Estatal de Investigación https://doi.org/10.13039/501100011033 PID2022-140862OB-C21Generalitat de Catalunya https://doi.org/10.13039/501100002809 2022FI_B_00601Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 JDC2022-050316-Iopen accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:3199592026-06-06T12:50:31Z
dc.title.none.fl_str_mv Spatial and seasonal fluctuations in fresh submarine groundwater discharge revealed by marine continuous resistivity profiling
title Spatial and seasonal fluctuations in fresh submarine groundwater discharge revealed by marine continuous resistivity profiling
spellingShingle Spatial and seasonal fluctuations in fresh submarine groundwater discharge revealed by marine continuous resistivity profiling
Tur-Piedra, Jose
Marine geophysics
SGD
Seasonality
Mediterranean sea
Electrical resistivity tomography
Coastal groundwater
title_short Spatial and seasonal fluctuations in fresh submarine groundwater discharge revealed by marine continuous resistivity profiling
title_full Spatial and seasonal fluctuations in fresh submarine groundwater discharge revealed by marine continuous resistivity profiling
title_fullStr Spatial and seasonal fluctuations in fresh submarine groundwater discharge revealed by marine continuous resistivity profiling
title_full_unstemmed Spatial and seasonal fluctuations in fresh submarine groundwater discharge revealed by marine continuous resistivity profiling
title_sort Spatial and seasonal fluctuations in fresh submarine groundwater discharge revealed by marine continuous resistivity profiling
dc.creator.none.fl_str_mv Tur-Piedra, Jose
Ledo, Juanjo
Diego-Feliu, Marc|||0000-0002-4782-3210
Queralt, Pilar|||0000-0002-4195-4228
Marcuello, Álex|||0000-0002-6216-4436
Rodellas, Valentí|||0000-0002-5896-9987
Folch, Albert|||0000-0002-8490-1038
author Tur-Piedra, Jose
author_facet Tur-Piedra, Jose
Ledo, Juanjo
Diego-Feliu, Marc|||0000-0002-4782-3210
Queralt, Pilar|||0000-0002-4195-4228
Marcuello, Álex|||0000-0002-6216-4436
Rodellas, Valentí|||0000-0002-5896-9987
Folch, Albert|||0000-0002-8490-1038
author_role author
author2 Ledo, Juanjo
Diego-Feliu, Marc|||0000-0002-4782-3210
Queralt, Pilar|||0000-0002-4195-4228
Marcuello, Álex|||0000-0002-6216-4436
Rodellas, Valentí|||0000-0002-5896-9987
Folch, Albert|||0000-0002-8490-1038
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Marine geophysics
SGD
Seasonality
Mediterranean sea
Electrical resistivity tomography
Coastal groundwater
topic Marine geophysics
SGD
Seasonality
Mediterranean sea
Electrical resistivity tomography
Coastal groundwater
description Submarine Groundwater Discharge (SGD) is a major pathway for the discharge of fresh and saline groundwater and associated dissolved compounds into marine environments. However, assessing SGD processes in coastal aquifers is challenging due to inaccessibility, dynamic conditions, complex subsurface geology, and the need for long-term monitoring to capture temporal and spatial variations in SGD rates accurately. This study employs marine continuous resistivity profiling (MCRP) as a main method to assess the presence of freshwater or brackish SGD offshore and to examine its potential seasonal variations. The method has been applied in the coastal alluvial aquifer of Maresme (Spain) and validated with other methods to trace SGD, including salinity profiles, Ra isotopes, and piezometric levels. Several MCRP transects of 700 m long, perpendicular to the coastline, were performed in a coastal marine area to obtain electrical resistivity data of the seabed covering an area of 3 km2. The data was acquired in two field campaigns with contrasting hydrological conditions (dry and wet seasons). The MCRP results allow the identification of areas of fresh SGD in marine sediments, with a clear seasonal variability that indicates a higher discharge of fresh groundwater in the wet season.
publishDate 2024
dc.date.none.fl_str_mv 2
2024-01-01
2024
2024-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/319959
https://dx.doi.org/urn:doi:10.1038/s41598-024-75984-z
url https://ddd.uab.cat/record/319959
https://dx.doi.org/urn:doi:10.1038/s41598-024-75984-z
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 PID2022-140862OB-C21
Generalitat de Catalunya https://doi.org/10.13039/501100002809 2022FI_B_00601
Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 JDC2022-050316-I
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
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