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Evaluation of water resources in a high-mountain basin in Serra da Estrela, Central Portugal, using a semi-distributed hydrological model

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Resumo:High-mountain basins provide a source of valuable water resources. This paper presents hydrological models for the evaluation of water resources in the high-mountain Zêzere river basin in Serra da Estrela, Central Portugal. Models are solved with VISUAL BALAN v2.0, a code which performs daily water balances in the root zone, the unsaturated zone and the aquifer and requires a small number of parameters. A lumped hydrological model fails to fit measured stream flows. Its limitations are overcome by considering the dependence of the temperature and precipitation data with elevation and the spatial variability in hydrogeomorphological variables with nine sub-basins of uniform parameters. Model parameters are calibrated by fitting stream flow measurements in the Zêzere river. Computed stream flows are highly sensitive to soil thickness, whereas computed groundwater recharge is most sensitive to the interflow and percolation recession coefficients. Interflow is the main component of total runoff, ranging from 41 to 55% of annual precipitation. High interflows are favored by the steep relief of the basin, by the presence of a high permeability soil overlying the fractured low permeability granitic bedrock and by the extensive subhorizontal fracturing at shallow depths. Mean annual groundwater recharge ranges from 11 to 15% of annual precipitation. It has a significant uncertainty due to uncertainties in soil parameters. This methodology proves to be useful to handle the research difficulties regarding a complex mountain basin in a context of data scarcity.
Autores principais:Jorge Marques
Outros Autores:J. Samper; B. Pisani; D. Alvares; J.M. Carvalho; H.I. Chaminé; J.M. Marques; G.T. Vieira; C.Mora; F.S. Borges
Assunto:Ciências da terra e ciências do ambiente Earth and related Environmental sciences
Ano:2010
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso restrito
Instituição associada:Universidade do Porto
Idioma:inglês
Origem:Repositório Aberto da Universidade do Porto
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author Jorge Marques
author2 J. Samper
B. Pisani
D. Alvares
J.M. Carvalho
H.I. Chaminé
J.M. Marques
G.T. Vieira
C.Mora
F.S. Borges
author2_role author
author
author
author
author
author
author
author
author
author_facet Jorge Marques
J. Samper
B. Pisani
D. Alvares
J.M. Carvalho
H.I. Chaminé
J.M. Marques
G.T. Vieira
C.Mora
F.S. Borges
author_role author
country_str PT
creators_json_txt [{\"Person.name\":\"Jorge Marques\"},{\"Person.name\":\"J. Samper\"},{\"Person.name\":\"B. Pisani\"},{\"Person.name\":\"D. Alvares\"},{\"Person.name\":\"J.M. Carvalho\"},{\"Person.name\":\"H.I. Chaminé\"},{\"Person.name\":\"J.M. Marques\"},{\"Person.name\":\"G.T. Vieira\"},{\"Person.name\":\"C.Mora\"},{\"Person.name\":\"F.S. Borges\"}]
datacite.creators.creator.creatorName.fl_str_mv Jorge Marques
J. Samper
B. Pisani
D. Alvares
J.M. Carvalho
H.I. Chaminé
J.M. Marques
G.T. Vieira
C.Mora
F.S. Borges
datacite.date.Accepted.fl_str_mv 2010-01-01T00:00:00Z
datacite.rights.fl_str_mv http://purl.org/coar/access_right/c_16ec
datacite.subjects.subject.fl_str_mv Ciências da terra e ciências do ambiente
Earth and related Environmental sciences
datacite.titles.title.fl_str_mv Evaluation of water resources in a high-mountain basin in Serra da Estrela, Central Portugal, using a semi-distributed hydrological model
dc.creator.none.fl_str_mv Jorge Marques
J. Samper
B. Pisani
D. Alvares
J.M. Carvalho
H.I. Chaminé
J.M. Marques
G.T. Vieira
C.Mora
F.S. Borges
dc.date.Accepted.fl_str_mv 2010-01-01T00:00:00Z
dc.format.none.fl_str_mv application/pdf
dc.identifier.none.fl_str_mv https://repositorio-aberto.up.pt/handle/10216/91200
dc.language.none.fl_str_mv eng
dc.rights.none.fl_str_mv http://purl.org/coar/access_right/c_16ec
dc.subject.none.fl_str_mv Ciências da terra e ciências do ambiente
Earth and related Environmental sciences
dc.title.fl_str_mv Evaluation of water resources in a high-mountain basin in Serra da Estrela, Central Portugal, using a semi-distributed hydrological model
dc.type.none.fl_str_mv http://purl.org/coar/resource_type/c_6501
description High-mountain basins provide a source of valuable water resources. This paper presents hydrological models for the evaluation of water resources in the high-mountain Zêzere river basin in Serra da Estrela, Central Portugal. Models are solved with VISUAL BALAN v2.0, a code which performs daily water balances in the root zone, the unsaturated zone and the aquifer and requires a small number of parameters. A lumped hydrological model fails to fit measured stream flows. Its limitations are overcome by considering the dependence of the temperature and precipitation data with elevation and the spatial variability in hydrogeomorphological variables with nine sub-basins of uniform parameters. Model parameters are calibrated by fitting stream flow measurements in the Zêzere river. Computed stream flows are highly sensitive to soil thickness, whereas computed groundwater recharge is most sensitive to the interflow and percolation recession coefficients. Interflow is the main component of total runoff, ranging from 41 to 55% of annual precipitation. High interflows are favored by the steep relief of the basin, by the presence of a high permeability soil overlying the fractured low permeability granitic bedrock and by the extensive subhorizontal fracturing at shallow depths. Mean annual groundwater recharge ranges from 11 to 15% of annual precipitation. It has a significant uncertainty due to uncertainties in soil parameters. This methodology proves to be useful to handle the research difficulties regarding a complex mountain basin in a context of data scarcity.
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oai_identifier_str oai:repositorio-aberto.up.pt:10216/91200
organization_str_mv urn:organizationAcronym:up
person_str_mv Jorge Marques
J. Samper
B. Pisani
D. Alvares
J.M. Carvalho
H.I. Chaminé
J.M. Marques
G.T. Vieira
C.Mora
F.S. Borges
publishDate 2010
reponame_str Repositório Aberto da Universidade do Porto
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spelling High-mountain basins provide a source of valuable water resources. This paper presents hydrological models for the evaluation of water resources in the high-mountain Zêzere river basin in Serra da Estrela, Central Portugal. Models are solved with VISUAL BALAN v2.0, a code which performs daily water balances in the root zone, the unsaturated zone and the aquifer and requires a small number of parameters. A lumped hydrological model fails to fit measured stream flows. Its limitations are overcome by considering the dependence of the temperature and precipitation data with elevation and the spatial variability in hydrogeomorphological variables with nine sub-basins of uniform parameters. Model parameters are calibrated by fitting stream flow measurements in the Zêzere river. Computed stream flows are highly sensitive to soil thickness, whereas computed groundwater recharge is most sensitive to the interflow and percolation recession coefficients. Interflow is the main component of total runoff, ranging from 41 to 55% of annual precipitation. High interflows are favored by the steep relief of the basin, by the presence of a high permeability soil overlying the fractured low permeability granitic bedrock and by the extensive subhorizontal fracturing at shallow depths. Mean annual groundwater recharge ranges from 11 to 15% of annual precipitation. It has a significant uncertainty due to uncertainties in soil parameters. This methodology proves to be useful to handle the research difficulties regarding a complex mountain basin in a context of data scarcity.application/pdfengEvaluation of water resources in a high-mountain basin in Serra da Estrela, Central Portugal, using a semi-distributed hydrological modelJorge MarquesJ. SamperB. PisaniD. AlvaresJ.M. CarvalhoH.I. ChaminéJ.M. MarquesG.T. VieiraC.MoraF.S. BorgesURLhttps://repositorio-aberto.up.pt/handle/10216/91200ISSNIsPartOf1866-628020102010-01-01T00:00:00Zhttp://purl.org/coar/access_right/c_16ecrestricted accessCiências da terra e ciências do ambienteEarth and related Environmental sciences1467502 byteshttp://purl.org/coar/access_right/c_16ecapplication/pdffulltexthttps://repositorio-aberto.up.pt/bitstream/10216/91200/2/48265.pdfliteraturehttp://purl.org/coar/resource_type/c_6501journal article
spellingShingle Evaluation of water resources in a high-mountain basin in Serra da Estrela, Central Portugal, using a semi-distributed hydrological model
Jorge Marques
Ciências da terra e ciências do ambiente
Earth and related Environmental sciences
status SINGLETON
subject.fl_str_mv Ciências da terra e ciências do ambiente
Earth and related Environmental sciences
title Evaluation of water resources in a high-mountain basin in Serra da Estrela, Central Portugal, using a semi-distributed hydrological model
title_full Evaluation of water resources in a high-mountain basin in Serra da Estrela, Central Portugal, using a semi-distributed hydrological model
title_fullStr Evaluation of water resources in a high-mountain basin in Serra da Estrela, Central Portugal, using a semi-distributed hydrological model
title_full_unstemmed Evaluation of water resources in a high-mountain basin in Serra da Estrela, Central Portugal, using a semi-distributed hydrological model
title_short Evaluation of water resources in a high-mountain basin in Serra da Estrela, Central Portugal, using a semi-distributed hydrological model
title_sort Evaluation of water resources in a high-mountain basin in Serra da Estrela, Central Portugal, using a semi-distributed hydrological model
topic Ciências da terra e ciências do ambiente
Earth and related Environmental sciences
topic_facet Ciências da terra e ciências do ambiente
Earth and related Environmental sciences
url https://repositorio-aberto.up.pt/handle/10216/91200
visible 1