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In-situ and model wave characterization at the Alfeite beach

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Resumo:In the framework of a research project entitled “BERNA”, a methodology was devised to characterize the wind waves at the Alfeite beach, in the inner estuary of the Tagus river, by making in-situ measurements and using a numerical wave propagation model. With this goal in mind, a number of in-situ measurements were made, for a few selected positions in front of the Alfeite beach, at three different days, using resistive wave gauges and pressure transducers. During this period, a number of wave records, with different durations, were obtained and analyzed. Although these measurements proved to be useful to give a good insight of the main characteristics of the wind waves that might occur at that particular location, they cannot give a general characterization of the wind wave climate on the Tagus estuary, especially at the Alfeite beach, since they are in a small number and are limited to a few positions only. To overcome these shortcomings, the SWAN numerical model was used to account for the wave generation, propagation, attenuation and non linear interactions between waves and currents phenomena in the whole estuary, in particular in the Alfeite beach. In this way, the model is applied to the same conditions of wind and tide observed on the measurement days. This paper summarizes the wave characterization work performed under the BERNA project. A comparison of the SWAN results to the wave parameters from wave records obtained in front of Alfeite beach is made and discussed.
Autores principais:Capitão, R.
Outros Autores:Santos, J. A.; Pinheiro, L.
Assunto:Wave measurements Alfeite beach Swan model Wind waves
Ano:2009
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:Laboratório Nacional de Engenharia Civil
Idioma:inglês
Origem:Repositório Científico do LNEC
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author Capitão, R.
author2 Santos, J. A.
Pinheiro, L.
author2_role author
author
author_facet Capitão, R.
Santos, J. A.
Pinheiro, L.
author_role author
country_str PT
creators_json_txt [{\"Person.name\":\"Capitão, R.\"},{\"Person.name\":\"Santos, J. A.\"},{\"Person.name\":\"Pinheiro, L.\"}]
datacite.creators.creator.creatorName.fl_str_mv Capitão, R.
Santos, J. A.
Pinheiro, L.
datacite.date.Accepted.fl_str_mv 2009-04-01T00:00:00Z
datacite.date.available.fl_str_mv 2009-11-18T15:53:55Z
2010-04-26T10:04:44Z
2014-10-20T13:37:27Z
2017-04-12T16:15:59Z
datacite.date.embargoed.fl_str_mv 2017-04-12T16:15:59Z
datacite.rights.fl_str_mv http://purl.org/coar/access_right/c_abf2
datacite.subjects.subject.fl_str_mv Wave measurements
Alfeite beach
Swan model
Wind waves
datacite.titles.title.fl_str_mv In-situ and model wave characterization at the Alfeite beach
dc.creator.none.fl_str_mv Capitão, R.
Santos, J. A.
Pinheiro, L.
dc.date.Accepted.fl_str_mv 2009-04-01T00:00:00Z
dc.date.available.fl_str_mv 2009-11-18T15:53:55Z
2010-04-26T10:04:44Z
2014-10-20T13:37:27Z
2017-04-12T16:15:59Z
dc.date.embargoed.fl_str_mv 2017-04-12T16:15:59Z
dc.format.none.fl_str_mv application/pdf
dc.identifier.none.fl_str_mv http://repositorio.lnec.pt:8080/jspui/handle/123456789/17264
dc.language.none.fl_str_mv eng
dc.publisher.none.fl_str_mv Journal of Coastal Research
dc.rights.none.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.subject.none.fl_str_mv Wave measurements
Alfeite beach
Swan model
Wind waves
dc.title.fl_str_mv In-situ and model wave characterization at the Alfeite beach
dc.type.none.fl_str_mv http://purl.org/coar/resource_type/c_6501
description In the framework of a research project entitled “BERNA”, a methodology was devised to characterize the wind waves at the Alfeite beach, in the inner estuary of the Tagus river, by making in-situ measurements and using a numerical wave propagation model. With this goal in mind, a number of in-situ measurements were made, for a few selected positions in front of the Alfeite beach, at three different days, using resistive wave gauges and pressure transducers. During this period, a number of wave records, with different durations, were obtained and analyzed. Although these measurements proved to be useful to give a good insight of the main characteristics of the wind waves that might occur at that particular location, they cannot give a general characterization of the wind wave climate on the Tagus estuary, especially at the Alfeite beach, since they are in a small number and are limited to a few positions only. To overcome these shortcomings, the SWAN numerical model was used to account for the wave generation, propagation, attenuation and non linear interactions between waves and currents phenomena in the whole estuary, in particular in the Alfeite beach. In this way, the model is applied to the same conditions of wind and tide observed on the measurement days. This paper summarizes the wave characterization work performed under the BERNA project. A comparison of the SWAN results to the wave parameters from wave records obtained in front of Alfeite beach is made and discussed.
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person_str_mv Capitão, R.
Santos, J. A.
Pinheiro, L.
publishDate 2009
publisher.none.fl_str_mv Journal of Coastal Research
repo_facet_str urn:repositoryAcronym:lnec{{{_:::_}}}Repositório Científico do LNEC
reponame_str Repositório Científico do LNEC
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spelling pt_BRIn the framework of a research project entitled “BERNA”, a methodology was devised to characterize the wind waves at the Alfeite beach, in the inner estuary of the Tagus river, by making in-situ measurements and using a numerical wave propagation model. With this goal in mind, a number of in-situ measurements were made, for a few selected positions in front of the Alfeite beach, at three different days, using resistive wave gauges and pressure transducers. During this period, a number of wave records, with different durations, were obtained and analyzed. Although these measurements proved to be useful to give a good insight of the main characteristics of the wind waves that might occur at that particular location, they cannot give a general characterization of the wind wave climate on the Tagus estuary, especially at the Alfeite beach, since they are in a small number and are limited to a few positions only. To overcome these shortcomings, the SWAN numerical model was used to account for the wave generation, propagation, attenuation and non linear interactions between waves and currents phenomena in the whole estuary, in particular in the Alfeite beach. In this way, the model is applied to the same conditions of wind and tide observed on the measurement days. This paper summarizes the wave characterization work performed under the BERNA project. A comparison of the SWAN results to the wave parameters from wave records obtained in front of Alfeite beach is made and discussed.application/pdfengJournal of Coastal Researchpt_BRIn-situ and model wave characterization at the Alfeite beachCapitão, R.Santos, J. A.Pinheiro, L.URLhttp://repositorio.lnec.pt:8080/jspui/handle/123456789/172642009-11-18T15:53:55Z2010-04-26T10:04:44Z2014-10-20T13:37:27Z2017-04-12T16:15:59Z2009-04-01T00:00:00Z2009-04http://purl.org/coar/access_right/c_abf2open accesspt_BRWave measurementspt_BRAlfeite beachpt_BRSwan modelpt_BRWind waves237293 byteshttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttp://localhost:8080/xmlui/bitstream/123456789/17264/2/Capitao_et_al_ICS_2009.pdfliteraturehttp://purl.org/coar/resource_type/c_6501journal article
spellingShingle In-situ and model wave characterization at the Alfeite beach
Capitão, R.
Wave measurements
Alfeite beach
Swan model
Wind waves
status SINGLETON
subject.fl_str_mv Wave measurements
Alfeite beach
Swan model
Wind waves
title In-situ and model wave characterization at the Alfeite beach
title_full In-situ and model wave characterization at the Alfeite beach
title_fullStr In-situ and model wave characterization at the Alfeite beach
title_full_unstemmed In-situ and model wave characterization at the Alfeite beach
title_short In-situ and model wave characterization at the Alfeite beach
title_sort In-situ and model wave characterization at the Alfeite beach
topic Wave measurements
Alfeite beach
Swan model
Wind waves
topic_facet Wave measurements
Alfeite beach
Swan model
Wind waves
url http://repositorio.lnec.pt:8080/jspui/handle/123456789/17264
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