Performance assessment of the database downscaled ocean waves (DOW) on Santa Catarina coast, South Brazil

ABSTRACT: This work presents a validation of wave parameters from the new sixty years Downscaled Ocean Waves (DOW) reanalysis database. This study compares quantiles of the Gumbel distribution of Hs (significant wave height) and Tp (peak period) from simulated data with an 11 months' time serie...

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Autores: Silva, Paula Gomes da, Klein, Antonio H.F., González Rodríguez, Ernesto Mauricio|||0000-0001-9021-451X, Gutiérrez Gutiérrez, Omar Quetzalcóatl, Espejo Hermosa, Antonio
Tipo de recurso: artículo
Fecha de publicación:2015
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/10329
Acceso en línea:http://hdl.handle.net/10902/10329
Access Level:acceso abierto
Palabra clave:DOW
Validation
Wave reanalysis
WAVEWATCHlll
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spelling Performance assessment of the database downscaled ocean waves (DOW) on Santa Catarina coast, South BrazilSilva, Paula Gomes daKlein, Antonio H.F.González Rodríguez, Ernesto Mauricio|||0000-0001-9021-451XGutiérrez Gutiérrez, Omar QuetzalcóatlEspejo Hermosa, AntonioDOWValidationWave reanalysisWAVEWATCHlllABSTRACT: This work presents a validation of wave parameters from the new sixty years Downscaled Ocean Waves (DOW) reanalysis database. This study compares quantiles of the Gumbel distribution of Hs (significant wave height) and Tp (peak period) from simulated data with an 11 months' time series obtained from a buoy moored seaward on the Santa Catarina coast. Analysis by means of Gumbel distribution quantiles allows more weight to be given to the highest values of the time series, which are especially important in design projects. The statistical parameters used to verify the fit between the measured and the modeled data included: RMSE, BIAS, Scatter Index and Pearson Correlation Coefficient. Mean direction (9m) validation was conducted qualitatively. The database showed good fit of the mean conditions, especially Hs which was well Reproduced by the wave model. Underestimation of Tp, related mainly to the low spatial and temporal resolution of wind data used to generate waves, highlights this general modeling problem. Based on calculated statistical parameters, DOW data were considered comparable to the values obtained by measurements; however, such data must be cautiously used for extreme events analysis and in areas of bimodal sea conditions, where major deficiencies in the database were observed.The authors are also thankful to the Brazilian government through the Ministério do Meio Ambiente (MMA) and the Agência Brasileira de Cooperação (ABC) for the financial support of this research (within the project Transference of Methodologies and Tools to Support the Brazilian Coastal Management).Academia Brasileira de CiênciasUniversidad de Cantabria20152015-01-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttp://hdl.handle.net/10902/10329Anais da Academia Brasileira de Ciências (2015) 87(2): 623-634reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución 3.0 Españahttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/103292026-06-02T12:39:31Z
dc.title.none.fl_str_mv Performance assessment of the database downscaled ocean waves (DOW) on Santa Catarina coast, South Brazil
title Performance assessment of the database downscaled ocean waves (DOW) on Santa Catarina coast, South Brazil
spellingShingle Performance assessment of the database downscaled ocean waves (DOW) on Santa Catarina coast, South Brazil
Silva, Paula Gomes da
DOW
Validation
Wave reanalysis
WAVEWATCHlll
title_short Performance assessment of the database downscaled ocean waves (DOW) on Santa Catarina coast, South Brazil
title_full Performance assessment of the database downscaled ocean waves (DOW) on Santa Catarina coast, South Brazil
title_fullStr Performance assessment of the database downscaled ocean waves (DOW) on Santa Catarina coast, South Brazil
title_full_unstemmed Performance assessment of the database downscaled ocean waves (DOW) on Santa Catarina coast, South Brazil
title_sort Performance assessment of the database downscaled ocean waves (DOW) on Santa Catarina coast, South Brazil
dc.creator.none.fl_str_mv Silva, Paula Gomes da
Klein, Antonio H.F.
González Rodríguez, Ernesto Mauricio|||0000-0001-9021-451X
Gutiérrez Gutiérrez, Omar Quetzalcóatl
Espejo Hermosa, Antonio
author Silva, Paula Gomes da
author_facet Silva, Paula Gomes da
Klein, Antonio H.F.
González Rodríguez, Ernesto Mauricio|||0000-0001-9021-451X
Gutiérrez Gutiérrez, Omar Quetzalcóatl
Espejo Hermosa, Antonio
author_role author
author2 Klein, Antonio H.F.
González Rodríguez, Ernesto Mauricio|||0000-0001-9021-451X
Gutiérrez Gutiérrez, Omar Quetzalcóatl
Espejo Hermosa, Antonio
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv DOW
Validation
Wave reanalysis
WAVEWATCHlll
topic DOW
Validation
Wave reanalysis
WAVEWATCHlll
description ABSTRACT: This work presents a validation of wave parameters from the new sixty years Downscaled Ocean Waves (DOW) reanalysis database. This study compares quantiles of the Gumbel distribution of Hs (significant wave height) and Tp (peak period) from simulated data with an 11 months' time series obtained from a buoy moored seaward on the Santa Catarina coast. Analysis by means of Gumbel distribution quantiles allows more weight to be given to the highest values of the time series, which are especially important in design projects. The statistical parameters used to verify the fit between the measured and the modeled data included: RMSE, BIAS, Scatter Index and Pearson Correlation Coefficient. Mean direction (9m) validation was conducted qualitatively. The database showed good fit of the mean conditions, especially Hs which was well Reproduced by the wave model. Underestimation of Tp, related mainly to the low spatial and temporal resolution of wind data used to generate waves, highlights this general modeling problem. Based on calculated statistical parameters, DOW data were considered comparable to the values obtained by measurements; however, such data must be cautiously used for extreme events analysis and in areas of bimodal sea conditions, where major deficiencies in the database were observed.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10902/10329
url http://hdl.handle.net/10902/10329
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
http://creativecommons.org/licenses/by/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Academia Brasileira de Ciências
publisher.none.fl_str_mv Academia Brasileira de Ciências
dc.source.none.fl_str_mv Anais da Academia Brasileira de Ciências (2015) 87(2): 623-634
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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