The Effect of Stream Discharge on Hyporheic Exchange

Streambedmorphology, streamflow dynamics, and the heterogeneity of streambed sediments critically controls the interaction between surfacewater andgroundwater. The present study investigated the impact of different flowregimes on hyporheic exchange in a boreal streamin northern Sweden using experime...

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Autores: Mojarrad, Brian Babak, Betterle, Andrea, Singh, Tanu, Olid Garcia, Carolina, Worman, Anders
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/208364
Acceso en línea:https://hdl.handle.net/2445/208364
Access Level:acceso abierto
Palabra clave:Circulació d'aigües subterrànies
Hidrologia d'aigües subterrànies
Groundwater flow
Groundwater hydrology
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spelling The Effect of Stream Discharge on Hyporheic ExchangeMojarrad, Brian BabakBetterle, AndreaSingh, TanuOlid Garcia, CarolinaWorman, AndersCirculació d'aigües subterràniesHidrologia d'aigües subterràniesGroundwater flowGroundwater hydrologyStreambedmorphology, streamflow dynamics, and the heterogeneity of streambed sediments critically controls the interaction between surfacewater andgroundwater. The present study investigated the impact of different flowregimes on hyporheic exchange in a boreal streamin northern Sweden using experimental and numerical approaches. Low-, base-, and high-flow discharges were simulated by regulating the streamflow upstreamin the study area, and temperature was used as the natural tracer to monitor the impact of the different flow discharges on hyporheic exchange fluxes in stretches of stream featuring gaining and losing conditions. A numerical model was developed using geomorphological and hydrological properties of the stream and was then used to perform a detailed analysis of the subsurface water flow. Additionally, the impact of heterogeneity in sediment permeability on hyporheic exchange fluxes was investigated. Both the experimental and modelling results show that temporally increasing flowresulted in a larger (deeper) extent of the hyporheic zone aswell as longer hyporheic flow residence times. However, the result of the numerical analysis is strongly controlled by heterogeneity in sediment permeability. In particular, for homogeneous sediments, the fragmentation of upwelling length substantially varies with streamflow dynamics due to the contribution of deeper fluxes.MDPI2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/208364Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)reponame:Dipòsit Digital de la UBinstname:InglésReproducció del document publicat a: https://doi.org/10.3390/w11071436Water, 2019, vol. 11, num.7, p. 1436https://doi.org/10.3390/w11071436cc-by (c) Mojarrad, B.B. et al., 2019http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2083642025-07-25T16:43:42Z
dc.title.none.fl_str_mv The Effect of Stream Discharge on Hyporheic Exchange
title The Effect of Stream Discharge on Hyporheic Exchange
spellingShingle The Effect of Stream Discharge on Hyporheic Exchange
Mojarrad, Brian Babak
Circulació d'aigües subterrànies
Hidrologia d'aigües subterrànies
Groundwater flow
Groundwater hydrology
title_short The Effect of Stream Discharge on Hyporheic Exchange
title_full The Effect of Stream Discharge on Hyporheic Exchange
title_fullStr The Effect of Stream Discharge on Hyporheic Exchange
title_full_unstemmed The Effect of Stream Discharge on Hyporheic Exchange
title_sort The Effect of Stream Discharge on Hyporheic Exchange
dc.creator.none.fl_str_mv Mojarrad, Brian Babak
Betterle, Andrea
Singh, Tanu
Olid Garcia, Carolina
Worman, Anders
author Mojarrad, Brian Babak
author_facet Mojarrad, Brian Babak
Betterle, Andrea
Singh, Tanu
Olid Garcia, Carolina
Worman, Anders
author_role author
author2 Betterle, Andrea
Singh, Tanu
Olid Garcia, Carolina
Worman, Anders
author2_role author
author
author
author
dc.subject.none.fl_str_mv Circulació d'aigües subterrànies
Hidrologia d'aigües subterrànies
Groundwater flow
Groundwater hydrology
topic Circulació d'aigües subterrànies
Hidrologia d'aigües subterrànies
Groundwater flow
Groundwater hydrology
description Streambedmorphology, streamflow dynamics, and the heterogeneity of streambed sediments critically controls the interaction between surfacewater andgroundwater. The present study investigated the impact of different flowregimes on hyporheic exchange in a boreal streamin northern Sweden using experimental and numerical approaches. Low-, base-, and high-flow discharges were simulated by regulating the streamflow upstreamin the study area, and temperature was used as the natural tracer to monitor the impact of the different flow discharges on hyporheic exchange fluxes in stretches of stream featuring gaining and losing conditions. A numerical model was developed using geomorphological and hydrological properties of the stream and was then used to perform a detailed analysis of the subsurface water flow. Additionally, the impact of heterogeneity in sediment permeability on hyporheic exchange fluxes was investigated. Both the experimental and modelling results show that temporally increasing flowresulted in a larger (deeper) extent of the hyporheic zone aswell as longer hyporheic flow residence times. However, the result of the numerical analysis is strongly controlled by heterogeneity in sediment permeability. In particular, for homogeneous sediments, the fragmentation of upwelling length substantially varies with streamflow dynamics due to the contribution of deeper fluxes.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/208364
url https://hdl.handle.net/2445/208364
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.3390/w11071436
Water, 2019, vol. 11, num.7, p. 1436
https://doi.org/10.3390/w11071436
dc.rights.none.fl_str_mv cc-by (c) Mojarrad, B.B. et al., 2019
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Mojarrad, B.B. et al., 2019
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)
reponame:Dipòsit Digital de la UB
instname:
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reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
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repository.mail.fl_str_mv
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