Geometry of the modelled freshwater/salt-water interface under variable-density-driven flow (Pétrola Lake, SE Spain)

Pétrola Lake in southeast Spain is one of the most representative examples of hypersaline wetlands in southern Europe. The richecosystem and environmental importance of this lake are closely associated with the hydrogeological behaviour of the system.The wetland is fed by the underlying aquifer with...

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Autores: Sanz Martínez, David, Valiente Parra, Nicolás, Dountcheva, Iordanka, Muñoz Martín, A., Cassiraga, E., Gómez Alday, Juan José
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/32962
Acceso en línea:https://hdl.handle.net/10578/32962
Access Level:acceso abierto
Palabra clave:Density-driven flow
Salt-water/fresh-water relations
SEAWAT
Spain
Wetlands
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repository_id_str
spelling Geometry of the modelled freshwater/salt-water interface under variable-density-driven flow (Pétrola Lake, SE Spain)Sanz Martínez, DavidValiente Parra, NicolásDountcheva, IordankaMuñoz Martín, A.Cassiraga, E.Gómez Alday, Juan JoséDensity-driven flowSalt-water/fresh-water relationsSEAWATSpainWetlandsPétrola Lake in southeast Spain is one of the most representative examples of hypersaline wetlands in southern Europe. The richecosystem and environmental importance of this lake are closely associated with the hydrogeological behaviour of the system.The wetland is fed by the underlying aquifer with relatively fresh groundwater—1gL-1of total dissolved solids (TDS)—with acentripetal direction towards the wetland. In addition, the high evaporation rates of the region promote an increase in theconcentration of salts in the lake water, occasionally higher than 80 g L-1TDS. The density difference between the superficiallake water and the regional groundwater can reach up to 0.25 g cm-3, causing gravitational instability and density-driven flow(DDF) under the lake bottom. The objective of this study was to gain an understanding of the geometry of the freshwater–saltwater interface by means of two-dimensional mathematical modelling and geophysical-resistivity-profile surveys. The mag-nitude and direction of mixed convective flows, generated by DDF, support the hypothesis that the autochthonous reactiveorganic matter produced in the lake by biomass can be transported effectively towards the freshwater–saltwater interface areas(e.g. springs in the lake edge), where previous research described biogeochemical processes of natural attenuation of nitratepollutionSpringer202420242022info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://hdl.handle.net/10578/32962reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésBES-2012-052256PEIC-2014-004-PCICYT CGL-2008-06373-CO3-01CICYT-CGL2011-29975-C04-02CGL2017-87216-C4-2-RCARESOIL project (S2018/EMT-4317)info:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/329622026-05-27T07:36:41Z
dc.title.none.fl_str_mv Geometry of the modelled freshwater/salt-water interface under variable-density-driven flow (Pétrola Lake, SE Spain)
title Geometry of the modelled freshwater/salt-water interface under variable-density-driven flow (Pétrola Lake, SE Spain)
spellingShingle Geometry of the modelled freshwater/salt-water interface under variable-density-driven flow (Pétrola Lake, SE Spain)
Sanz Martínez, David
Density-driven flow
Salt-water/fresh-water relations
SEAWAT
Spain
Wetlands
title_short Geometry of the modelled freshwater/salt-water interface under variable-density-driven flow (Pétrola Lake, SE Spain)
title_full Geometry of the modelled freshwater/salt-water interface under variable-density-driven flow (Pétrola Lake, SE Spain)
title_fullStr Geometry of the modelled freshwater/salt-water interface under variable-density-driven flow (Pétrola Lake, SE Spain)
title_full_unstemmed Geometry of the modelled freshwater/salt-water interface under variable-density-driven flow (Pétrola Lake, SE Spain)
title_sort Geometry of the modelled freshwater/salt-water interface under variable-density-driven flow (Pétrola Lake, SE Spain)
dc.creator.none.fl_str_mv Sanz Martínez, David
Valiente Parra, Nicolás
Dountcheva, Iordanka
Muñoz Martín, A.
Cassiraga, E.
Gómez Alday, Juan José
author Sanz Martínez, David
author_facet Sanz Martínez, David
Valiente Parra, Nicolás
Dountcheva, Iordanka
Muñoz Martín, A.
Cassiraga, E.
Gómez Alday, Juan José
author_role author
author2 Valiente Parra, Nicolás
Dountcheva, Iordanka
Muñoz Martín, A.
Cassiraga, E.
Gómez Alday, Juan José
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Density-driven flow
Salt-water/fresh-water relations
SEAWAT
Spain
Wetlands
topic Density-driven flow
Salt-water/fresh-water relations
SEAWAT
Spain
Wetlands
description Pétrola Lake in southeast Spain is one of the most representative examples of hypersaline wetlands in southern Europe. The richecosystem and environmental importance of this lake are closely associated with the hydrogeological behaviour of the system.The wetland is fed by the underlying aquifer with relatively fresh groundwater—1gL-1of total dissolved solids (TDS)—with acentripetal direction towards the wetland. In addition, the high evaporation rates of the region promote an increase in theconcentration of salts in the lake water, occasionally higher than 80 g L-1TDS. The density difference between the superficiallake water and the regional groundwater can reach up to 0.25 g cm-3, causing gravitational instability and density-driven flow(DDF) under the lake bottom. The objective of this study was to gain an understanding of the geometry of the freshwater–saltwater interface by means of two-dimensional mathematical modelling and geophysical-resistivity-profile surveys. The mag-nitude and direction of mixed convective flows, generated by DDF, support the hypothesis that the autochthonous reactiveorganic matter produced in the lake by biomass can be transported effectively towards the freshwater–saltwater interface areas(e.g. springs in the lake edge), where previous research described biogeochemical processes of natural attenuation of nitratepollution
publishDate 2022
dc.date.none.fl_str_mv 2022
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10578/32962
url https://hdl.handle.net/10578/32962
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv BES-2012-052256
PEIC-2014-004-P
CICYT CGL-2008-06373-CO3-01
CICYT-CGL2011-29975-C04-02
CGL2017-87216-C4-2-R
CARESOIL project (S2018/EMT-4317)
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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