Ter River influence on Sau Reservoir limnology. Empirical and watershed-scale modeling

[eng] The role of the materials coming from the watershed on the reservoir water quality is an emergent area of high scientific interest with many practical implications. In this study we investigated the influence of the materials coming from the Ter River watershed on the eutrophication process of...

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Author: Marcé Romero, Rafael
Format: doctoral thesis
Status:Published version
Publication Date:2007
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/35306
Online Access:https://hdl.handle.net/2445/35306
http://www.tdx.cat/TDX-0919107-113118
http://hdl.handle.net/10803/1437
Access Level:Open access
Keyword:Pantans (Enginyeria civil)
Qualitat de l'aigua
Eutrofització
Ter (Catalunya : Curs d'aigua)
Sau (Catalunya : Pantà)
Reservoirs
Water quality
Eutrophication
Ter (Catalonia : River)
Sau (Catalonia : Swamp)
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oai_identifier_str oai:diposit.ub.edu:2445/35306
network_acronym_str ES
network_name_str España
repository_id_str
spelling Ter River influence on Sau Reservoir limnology. Empirical and watershed-scale modelingMarcé Romero, RafaelPantans (Enginyeria civil)Qualitat de l'aiguaEutrofitzacióTer (Catalunya : Curs d'aigua)Sau (Catalunya : Pantà)ReservoirsWater qualityEutrophicationTer (Catalonia : River)Sau (Catalonia : Swamp)[eng] The role of the materials coming from the watershed on the reservoir water quality is an emergent area of high scientific interest with many practical implications. In this study we investigated the influence of the materials coming from the Ter River watershed on the eutrophication process of Sau Reservoir, located in Barcelona (Spain). First, we present a new methodology to calculate nutrient river loads, using fuzzy logic and tools from neural-networks optimization algorithms. The new method was more efficient and accurate than classical procedures. Then, we demonstrate the effect of river materials (especially that of dissolved organic carbon) on the development of anoxic layers in the bottom layers of the reservoir. These results are not limited to Sau Reservoir, since other reservoirs in the world have shown the same responses. The second part of the dissertation develops a watershed-scale model for the Ter River and the Sau Reservoir using HSPF. This included hydrology, river water temperature, and river total phosphorus concentration. Results were satisfactory, and the model implementation allowed testing state-of-the-art algorithms to calibrate complex models, based on the Bayesian statistical theory. On the other hand, different alternatives to model river water temperature were tested. Finally, we explored the possibility of using field data collected at the river reach scale, following the Nutrient Spiralling Concept, to parameterize the river total phosphorus model in the Ter watershed, with encouraging results.[cat] L'efecte dels materials provinents de la conca de drenatge en la qualitat de l'aigua del embassaments és un àrea d'investigació amb considerable interès teòric i pràctic. En aquest estudi s'ha investigat la influència de les aportacions de la conca de drenatge del riu Ter en el procés d'eutrofització de l'embassament de Sau, a la província de Barcelona (Espanya). Primer es detalla un nou mètode de càlcul de càrregues de nutrients en rius, fent servir la lògica difusa i eines provinents de l'optimització de xarxes neuronals. El nou mètode ha provat ser més eficient i precís que les alternatives clàssiques. Després s'ha demostrat empíricament l'efecte dels materials provinents del riu (especialment del carboni orgànic dissolt) en la generació de capes anòxiques al fons de l'embassament. Aquest resultats no s'han aplicat només en el cas de l'embassament de Sau, sinó que han demostrat ser extrapolables a d'altres sistemes inundats de diferents llocs del planeta. La segona part de la Tesi desenvolupa un model a escala de conca pel riu Ter i l'embassament de Sau amb HSPF, incloent hidrologia, la temperatura de l'aigua al riu, i la concentració de fòsfor total al riu. Els resultats han estat satisfactoris, i a més la implementació del model ha permès testar eines modernes de calibració de models complexos basades en l'estadística Bayesiana. Per altra banda, s'han testat diferents alternatives per a la modelització de la temperatura d'aigua en rius. Finalment, s'ha investigat la possibilitat de fer servir dades de camp recollides a escala de tram de riu, seguint el Nutrient Spiralling Concept, per a la parametrització del model de fòsfor total al riu Ter, amb resultats estimulants.Universitat de BarcelonaArmengol, Joan (Armengol Bachero)Universitat de Barcelona. Departament d'Ecologia2007info:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/35306http://www.tdx.cat/TDX-0919107-113118http://hdl.handle.net/10803/1437Tesis Doctorals - Departament - Ecologiareponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglés(c) Marcé Romero, 2007info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/353062026-05-27T06:46:51Z
dc.title.none.fl_str_mv Ter River influence on Sau Reservoir limnology. Empirical and watershed-scale modeling
title Ter River influence on Sau Reservoir limnology. Empirical and watershed-scale modeling
spellingShingle Ter River influence on Sau Reservoir limnology. Empirical and watershed-scale modeling
Marcé Romero, Rafael
Pantans (Enginyeria civil)
Qualitat de l'aigua
Eutrofització
Ter (Catalunya : Curs d'aigua)
Sau (Catalunya : Pantà)
Reservoirs
Water quality
Eutrophication
Ter (Catalonia : River)
Sau (Catalonia : Swamp)
title_short Ter River influence on Sau Reservoir limnology. Empirical and watershed-scale modeling
title_full Ter River influence on Sau Reservoir limnology. Empirical and watershed-scale modeling
title_fullStr Ter River influence on Sau Reservoir limnology. Empirical and watershed-scale modeling
title_full_unstemmed Ter River influence on Sau Reservoir limnology. Empirical and watershed-scale modeling
title_sort Ter River influence on Sau Reservoir limnology. Empirical and watershed-scale modeling
dc.creator.none.fl_str_mv Marcé Romero, Rafael
author Marcé Romero, Rafael
author_facet Marcé Romero, Rafael
author_role author
dc.contributor.none.fl_str_mv Armengol, Joan (Armengol Bachero)
Universitat de Barcelona. Departament d'Ecologia
dc.subject.none.fl_str_mv Pantans (Enginyeria civil)
Qualitat de l'aigua
Eutrofització
Ter (Catalunya : Curs d'aigua)
Sau (Catalunya : Pantà)
Reservoirs
Water quality
Eutrophication
Ter (Catalonia : River)
Sau (Catalonia : Swamp)
topic Pantans (Enginyeria civil)
Qualitat de l'aigua
Eutrofització
Ter (Catalunya : Curs d'aigua)
Sau (Catalunya : Pantà)
Reservoirs
Water quality
Eutrophication
Ter (Catalonia : River)
Sau (Catalonia : Swamp)
description [eng] The role of the materials coming from the watershed on the reservoir water quality is an emergent area of high scientific interest with many practical implications. In this study we investigated the influence of the materials coming from the Ter River watershed on the eutrophication process of Sau Reservoir, located in Barcelona (Spain). First, we present a new methodology to calculate nutrient river loads, using fuzzy logic and tools from neural-networks optimization algorithms. The new method was more efficient and accurate than classical procedures. Then, we demonstrate the effect of river materials (especially that of dissolved organic carbon) on the development of anoxic layers in the bottom layers of the reservoir. These results are not limited to Sau Reservoir, since other reservoirs in the world have shown the same responses. The second part of the dissertation develops a watershed-scale model for the Ter River and the Sau Reservoir using HSPF. This included hydrology, river water temperature, and river total phosphorus concentration. Results were satisfactory, and the model implementation allowed testing state-of-the-art algorithms to calibrate complex models, based on the Bayesian statistical theory. On the other hand, different alternatives to model river water temperature were tested. Finally, we explored the possibility of using field data collected at the river reach scale, following the Nutrient Spiralling Concept, to parameterize the river total phosphorus model in the Ter watershed, with encouraging results.
publishDate 2007
dc.date.none.fl_str_mv 2007
dc.type.none.fl_str_mv info:eu-repo/semantics/doctoralThesis
info:eu-repo/semantics/publishedVersion
format doctoralThesis
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/35306
http://www.tdx.cat/TDX-0919107-113118
http://hdl.handle.net/10803/1437
url https://hdl.handle.net/2445/35306
http://www.tdx.cat/TDX-0919107-113118
http://hdl.handle.net/10803/1437
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv (c) Marcé Romero, 2007
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Marcé Romero, 2007
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universitat de Barcelona
publisher.none.fl_str_mv Universitat de Barcelona
dc.source.none.fl_str_mv Tesis Doctorals - Departament - Ecologia
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869404730938097664
score 15,301603

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