Phase-resolved real-time ocean wave prediction with quantified uncertainty based on variational Bayesian machine learning
dc.contributor.author | Zhang, J | |
dc.contributor.author | Zhao, X | |
dc.contributor.author | Jin, S | |
dc.contributor.author | Greaves, Deborah | |
dc.date.accessioned | 2022-07-27T08:56:58Z | |
dc.date.available | 2022-07-27T08:56:58Z | |
dc.date.issued | 2022-10-15 | |
dc.identifier.issn | 1872-9118 | |
dc.identifier.issn | 1872-9118 | |
dc.identifier.other | 119711 | |
dc.identifier.uri | http://hdl.handle.net/10026.1/19443 | |
dc.description.abstract |
Phase-resolved wave prediction is of vital importance for the real-time control of wave energy converters. In this paper, a novel wave prediction method is proposed, which, to the authors’ knowledge, achieves the real-time nonlinear wave prediction with quantified uncertainty (including both aleatory and model uncertainties) for the first time. Moreover, the proposed method achieves the prediction of the predictable zone without assuming linear sea states, while all previous works on predictable zone determination were based on linear wave theory (which produces overly conservative estimations). The proposed method is developed based on the Bayesian machine learning approach, which can take advantage of machine learning model's ability in tackling complex nonlinear problems, while taking various forms of uncertainties into account via the Bayesian framework. A set of wave tank experiments are carried out for evaluation of the method. The results show that the wave elevations at the location of interest are predicted accurately based on the measurements at sensor location, and the prediction uncertainty and its variations across the time horizon are well captured. The comparison with other wave prediction methods shows that the proposed method outperforms them in terms of both prediction accuracy and the length of the predictable zone. Particularly, for short-term wave forecasting, the prediction error by the proposed method is as much as 55.4% and 11.7% lower than the linear wave theory and deterministic machine learning approaches, and the predictable zone is expanded by the proposed method by as much as 74.6%. | |
dc.format.extent | 119711-119711 | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Elsevier | |
dc.subject | Bayesian neural network | |
dc.subject | Deterministic sea wave prediction | |
dc.subject | Predictable zone | |
dc.subject | Probabilistic machine learning | |
dc.subject | Uncertainty quantification | |
dc.subject | Wave tank experiment | |
dc.title | Phase-resolved real-time ocean wave prediction with quantified uncertainty based on variational Bayesian machine learning | |
dc.type | journal-article | |
dc.type | Journal Article | |
plymouth.author-url | https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000839358900002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008 | |
plymouth.volume | 324 | |
plymouth.publication-status | Published | |
plymouth.journal | Applied Energy | |
dc.identifier.doi | 10.1016/j.apenergy.2022.119711 | |
plymouth.organisational-group | /Plymouth | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering/School of Engineering, Computing and Mathematics | |
plymouth.organisational-group | /Plymouth/PRIMaRE Publications | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA/UoA12 Engineering | |
plymouth.organisational-group | /Plymouth/Research Groups | |
plymouth.organisational-group | /Plymouth/Research Groups/Marine Institute | |
plymouth.organisational-group | /Plymouth/Users by role | |
plymouth.organisational-group | /Plymouth/Users by role/Academics | |
plymouth.organisational-group | /Plymouth/Users by role/Researchers in ResearchFish submission | |
dcterms.dateAccepted | 2022-07-17 | |
dc.rights.embargodate | 2022-7-29 | |
dc.identifier.eissn | 1872-9118 | |
dc.rights.embargoperiod | Not known | |
rioxxterms.funder | Engineering and Physical Sciences Research Council | |
rioxxterms.identifier.project | Supergen ORE hub 2018 | |
rioxxterms.versionofrecord | 10.1016/j.apenergy.2022.119711 | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
rioxxterms.type | Journal Article/Review | |
plymouth.funder | Supergen ORE hub 2018::Engineering and Physical Sciences Research Council |