Trend analysis using nonparametric statistical techniques for detection and evaluation of spatial and temporal chemical changes at a hydrothermal exploitation (Felgueira Spa - Central Portugal)

Detalhes bibliográficos
Autor(a) principal: Morais, Manuel
Data de Publicação: 2008
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/24887
Resumo: Like many thermomineral springs all over Europe, Felgueira Spa (Central Portugal) sulfide alkaline water has been used in therapeutic bathing for centuries. Two periods may now be depicted in the exploitation history of those low enthalpy resources: one characterized by the use of flowing water from springs and a dug well that lasted until the 1990´s when deep drilling wells were promoted to satisfy the increasing demand of medicinal water. After that, a second period of a more active resource extraction begins. Detection of statistical significant monotonic time trends in chemical composition for the period 1991-1998 was done using nonparametric statistical techniques, namely, Spearman rank correlation coefficient and Sen´s slope estimator.
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spelling Trend analysis using nonparametric statistical techniques for detection and evaluation of spatial and temporal chemical changes at a hydrothermal exploitation (Felgueira Spa - Central Portugal)Trend analysis_lnonparametric statistical techniquesChemical evolutionHydrothermal exploitationFelgueira Spa - PortugalLike many thermomineral springs all over Europe, Felgueira Spa (Central Portugal) sulfide alkaline water has been used in therapeutic bathing for centuries. Two periods may now be depicted in the exploitation history of those low enthalpy resources: one characterized by the use of flowing water from springs and a dug well that lasted until the 1990´s when deep drilling wells were promoted to satisfy the increasing demand of medicinal water. After that, a second period of a more active resource extraction begins. Detection of statistical significant monotonic time trends in chemical composition for the period 1991-1998 was done using nonparametric statistical techniques, namely, Spearman rank correlation coefficient and Sen´s slope estimator.Fundação para a Ciência e a TecnologiaBruthans-Kovar-Hrkal2008info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/24887http://hdl.handle.net/10316/24887eng978-80-903635-3-3http://web.natur.cuni.cz/hydropredict2008/download/Proceedings_HydroPredict2008.pdfMorais, Manuelinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2020-05-25T11:33:42Zoai:estudogeral.uc.pt:10316/24887Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:52:23.009153Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Trend analysis using nonparametric statistical techniques for detection and evaluation of spatial and temporal chemical changes at a hydrothermal exploitation (Felgueira Spa - Central Portugal)
title Trend analysis using nonparametric statistical techniques for detection and evaluation of spatial and temporal chemical changes at a hydrothermal exploitation (Felgueira Spa - Central Portugal)
spellingShingle Trend analysis using nonparametric statistical techniques for detection and evaluation of spatial and temporal chemical changes at a hydrothermal exploitation (Felgueira Spa - Central Portugal)
Morais, Manuel
Trend analysis_lnonparametric statistical techniques
Chemical evolution
Hydrothermal exploitation
Felgueira Spa - Portugal
title_short Trend analysis using nonparametric statistical techniques for detection and evaluation of spatial and temporal chemical changes at a hydrothermal exploitation (Felgueira Spa - Central Portugal)
title_full Trend analysis using nonparametric statistical techniques for detection and evaluation of spatial and temporal chemical changes at a hydrothermal exploitation (Felgueira Spa - Central Portugal)
title_fullStr Trend analysis using nonparametric statistical techniques for detection and evaluation of spatial and temporal chemical changes at a hydrothermal exploitation (Felgueira Spa - Central Portugal)
title_full_unstemmed Trend analysis using nonparametric statistical techniques for detection and evaluation of spatial and temporal chemical changes at a hydrothermal exploitation (Felgueira Spa - Central Portugal)
title_sort Trend analysis using nonparametric statistical techniques for detection and evaluation of spatial and temporal chemical changes at a hydrothermal exploitation (Felgueira Spa - Central Portugal)
author Morais, Manuel
author_facet Morais, Manuel
author_role author
dc.contributor.author.fl_str_mv Morais, Manuel
dc.subject.por.fl_str_mv Trend analysis_lnonparametric statistical techniques
Chemical evolution
Hydrothermal exploitation
Felgueira Spa - Portugal
topic Trend analysis_lnonparametric statistical techniques
Chemical evolution
Hydrothermal exploitation
Felgueira Spa - Portugal
description Like many thermomineral springs all over Europe, Felgueira Spa (Central Portugal) sulfide alkaline water has been used in therapeutic bathing for centuries. Two periods may now be depicted in the exploitation history of those low enthalpy resources: one characterized by the use of flowing water from springs and a dug well that lasted until the 1990´s when deep drilling wells were promoted to satisfy the increasing demand of medicinal water. After that, a second period of a more active resource extraction begins. Detection of statistical significant monotonic time trends in chemical composition for the period 1991-1998 was done using nonparametric statistical techniques, namely, Spearman rank correlation coefficient and Sen´s slope estimator.
publishDate 2008
dc.date.none.fl_str_mv 2008
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10316/24887
http://hdl.handle.net/10316/24887
url http://hdl.handle.net/10316/24887
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 978-80-903635-3-3
http://web.natur.cuni.cz/hydropredict2008/download/Proceedings_HydroPredict2008.pdf
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Bruthans-Kovar-Hrkal
publisher.none.fl_str_mv Bruthans-Kovar-Hrkal
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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