Inverse calibration of a Groundwater Flow Model for the Almádena - Odeáxere Aquifer System (Algarve-Portugal)

Detalhes bibliográficos
Autor(a) principal: Martins, João Miguel Alexandre
Data de Publicação: 2007
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.1/764
Resumo: Dissertação mest., Engenharia do ambiente - Modelação ambiental, Universidade do Algarve, 2007
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spelling Inverse calibration of a Groundwater Flow Model for the Almádena - Odeáxere Aquifer System (Algarve-Portugal)TesesModelação ambientalRecursos hídricosDissertação mest., Engenharia do ambiente - Modelação ambiental, Universidade do Algarve, 2007The present work consisted on the characterization of the spatial distribution of hydraulic parameters on the Almádena-Odeáxere aquifer system (AO) using the automatic calibration of a finite-element numeric model, in order to improve the simulation accuracy of the aquifer’s hydraulic behaviour. This development has its foundations based on model variants already implemented at the University of Algarve to investigate the hydraulic properties of the AO on the framework of the regional scale groundwater flow studies concerning Algarve aquifers. The state-of-the-art of the aquifer’s hydrogeology was based on previous investigations, taking place on the last years in Algarve, but also on recent fieldwork, namely on the collection of field data from a monitoring network, designed in articulation with the “POCTI/AMB/57432/2004” investigation project, which provided the feedback information needed for the improvement of model variants developed during the course of the present work. Instead of using a classic, time consuming, trial and error approach for the purpose of determining hydraulic parameters controlling groundwater flow at AO, an automatic inverse calibration algorithm was used, allowing the achievement of parameter distribution values capable of generating realistic hydraulic flow simulations. The Gauss-Marquardt-Levenberg method of nonlinear parameter estimation, available at the PEST algorithm was assembled to the finite element flow model, which is based in the use of the Galerkin method of weighted residuals. The results obtained by the use of the inverse method have revealed a good fit between simulated and measured head values, since the correlation coefficient, R, value was higher than 0,9 (0,9967) and the sum-of-squared weighted residuals between model outcomes and corresponding field data (i.e. the objective function, Φ) was only 4,56 m. The obtained spatial distribution of transmissivity, ranging from 86 m2/day to 8158 m2/day on 16 zones, allowed a step further on the reliability of future simulations of spatial distribution and temporal evolution of state variables in natural conditions and considering different scenarios of water use.Monteiro, José PauloSapientiaMartins, João Miguel Alexandre2011-09-07T16:05:31Z20072007-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfapplication/pdfhttp://hdl.handle.net/10400.1/764eng504 MAR*Inv Caveinfo: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:RCAAP2023-07-24T10:11:36Zoai:sapientia.ualg.pt:10400.1/764Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:55:04.122994Repositório 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 Inverse calibration of a Groundwater Flow Model for the Almádena - Odeáxere Aquifer System (Algarve-Portugal)
title Inverse calibration of a Groundwater Flow Model for the Almádena - Odeáxere Aquifer System (Algarve-Portugal)
spellingShingle Inverse calibration of a Groundwater Flow Model for the Almádena - Odeáxere Aquifer System (Algarve-Portugal)
Martins, João Miguel Alexandre
Teses
Modelação ambiental
Recursos hídricos
title_short Inverse calibration of a Groundwater Flow Model for the Almádena - Odeáxere Aquifer System (Algarve-Portugal)
title_full Inverse calibration of a Groundwater Flow Model for the Almádena - Odeáxere Aquifer System (Algarve-Portugal)
title_fullStr Inverse calibration of a Groundwater Flow Model for the Almádena - Odeáxere Aquifer System (Algarve-Portugal)
title_full_unstemmed Inverse calibration of a Groundwater Flow Model for the Almádena - Odeáxere Aquifer System (Algarve-Portugal)
title_sort Inverse calibration of a Groundwater Flow Model for the Almádena - Odeáxere Aquifer System (Algarve-Portugal)
author Martins, João Miguel Alexandre
author_facet Martins, João Miguel Alexandre
author_role author
dc.contributor.none.fl_str_mv Monteiro, José Paulo
Sapientia
dc.contributor.author.fl_str_mv Martins, João Miguel Alexandre
dc.subject.por.fl_str_mv Teses
Modelação ambiental
Recursos hídricos
topic Teses
Modelação ambiental
Recursos hídricos
description Dissertação mest., Engenharia do ambiente - Modelação ambiental, Universidade do Algarve, 2007
publishDate 2007
dc.date.none.fl_str_mv 2007
2007-01-01T00:00:00Z
2011-09-07T16:05:31Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.1/764
url http://hdl.handle.net/10400.1/764
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 504 MAR*Inv Cave
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eu_rights_str_mv openAccess
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application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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