Multivariate sea storm hindcasting and design: the isotropic buoy-ungauged generator procedure

Abstract The present work provides indications for assessment of wave climate and design of structures at sea at ungauged sites, both critical issues in Ocean sciences. The paper is of methodological nature and of global worldwide applicability. It shows how suitable wave hindcasting relations can b...

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Autores principales:	Gianfausto Salvadori, Giuseppe Roberto Tomasicchio, Felice D’Alessandro, Letizia Lusito, Antonio Francone
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9bb9f2d73db94ff8b0562c3b82f0881b
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spelling	oai:doaj.org-article:9bb9f2d73db94ff8b0562c3b82f0881b2021-12-02T11:41:56ZMultivariate sea storm hindcasting and design: the isotropic buoy-ungauged generator procedure10.1038/s41598-020-77329-y2045-2322https://doaj.org/article/9bb9f2d73db94ff8b0562c3b82f0881b2020-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-77329-yhttps://doaj.org/toc/2045-2322Abstract The present work provides indications for assessment of wave climate and design of structures at sea at ungauged sites, both critical issues in Ocean sciences. The paper is of methodological nature and of global worldwide applicability. It shows how suitable wave hindcasting relations can be exploited in order to provide sea storm scenarios at an ungauged (Target) location useful for design purposes: in particular, only geographical information and the knowledge of another gauged (Source) buoy are used. Several are the novelties introduced. (i) New hindcasting relations are derived. (ii) A full statistical model is set up for the Target area, whereas traditional hindcasting simply transfers time series from a gauged to an ungauged site: this gives the possibility to appropriately deal with design and hazard assessment at the Target location. (iii) The multivariate behavior of non-independent random variables is properly modelled by using the Theory of Copulas. As an illustration, a number of case studies is investigated, involving four pairs of buoys which, given their positions and exposures, are representative of a wide variety of sea states and conditions, as well as of different wave generation mechanisms.Gianfausto SalvadoriGiuseppe Roberto TomasicchioFelice D’AlessandroLetizia LusitoAntonio FranconeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-12 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gianfausto Salvadori Giuseppe Roberto Tomasicchio Felice D’Alessandro Letizia Lusito Antonio Francone Multivariate sea storm hindcasting and design: the isotropic buoy-ungauged generator procedure
description	Abstract The present work provides indications for assessment of wave climate and design of structures at sea at ungauged sites, both critical issues in Ocean sciences. The paper is of methodological nature and of global worldwide applicability. It shows how suitable wave hindcasting relations can be exploited in order to provide sea storm scenarios at an ungauged (Target) location useful for design purposes: in particular, only geographical information and the knowledge of another gauged (Source) buoy are used. Several are the novelties introduced. (i) New hindcasting relations are derived. (ii) A full statistical model is set up for the Target area, whereas traditional hindcasting simply transfers time series from a gauged to an ungauged site: this gives the possibility to appropriately deal with design and hazard assessment at the Target location. (iii) The multivariate behavior of non-independent random variables is properly modelled by using the Theory of Copulas. As an illustration, a number of case studies is investigated, involving four pairs of buoys which, given their positions and exposures, are representative of a wide variety of sea states and conditions, as well as of different wave generation mechanisms.
format	article
author	Gianfausto Salvadori Giuseppe Roberto Tomasicchio Felice D’Alessandro Letizia Lusito Antonio Francone
author_facet	Gianfausto Salvadori Giuseppe Roberto Tomasicchio Felice D’Alessandro Letizia Lusito Antonio Francone
author_sort	Gianfausto Salvadori
title	Multivariate sea storm hindcasting and design: the isotropic buoy-ungauged generator procedure
title_short	Multivariate sea storm hindcasting and design: the isotropic buoy-ungauged generator procedure
title_full	Multivariate sea storm hindcasting and design: the isotropic buoy-ungauged generator procedure
title_fullStr	Multivariate sea storm hindcasting and design: the isotropic buoy-ungauged generator procedure
title_full_unstemmed	Multivariate sea storm hindcasting and design: the isotropic buoy-ungauged generator procedure
title_sort	multivariate sea storm hindcasting and design: the isotropic buoy-ungauged generator procedure
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/9bb9f2d73db94ff8b0562c3b82f0881b
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_version_	1718395414977183744

Multivariate sea storm hindcasting and design: the isotropic buoy-ungauged generator procedure

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