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dc.contributor.authorMcAllister, Mark
dc.contributor.authorVenugopal, V
dc.contributor.authorBorthwick, Alistair
dc.date.accessioned2021-08-22T17:03:47Z
dc.date.available2021-08-22T17:03:47Z
dc.date.issued2017-04
dc.identifier.issn1364-5021
dc.identifier.issn1471-2946
dc.identifier.urihttp://hdl.handle.net/10026.1/17711
dc.description.abstract

<jats:p> Ocean waves have multidirectional components. Most wave measurements are taken at a single point, and so fail to capture information about the relative directions of the wave components directly. Conventional means of directional estimation require a minimum of three concurrent time series of measurements at different spatial locations in order to derive information on local directional wave spreading. Here, the relationship between wave nonlinearity and directionality is utilized to estimate local spreading without the need for multiple concurrent measurements, following Adcock &amp; Taylor (Adcock &amp; Taylor 2009 <jats:italic>Proc. R. Soc. A</jats:italic> <jats:bold>465</jats:bold> , 3361–3381. ( <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://dx.doi.org/10.1098/rspa.2009.0031">doi:10.1098/rspa.2009.0031</jats:ext-link> )), with the assumption that directional spreading is frequency independent. The method is applied to measurements recorded at the North Alwyn platform in the northern North Sea, and the results compared against estimates of wave spreading by conventional measurement methods and hindcast data. Records containing freak waves were excluded. It is found that the method provides accurate estimates of wave spreading over a range of conditions experienced at North Alwyn, despite the noisy chaotic signals that characterize such ocean wave data. The results provide further confirmation that Adcock and Taylor's method is applicable to metocean data and has considerable future promise as a technique to recover estimates of wave spreading from single point wave measurement devices. </jats:p>

dc.format.extent20160781-20160781
dc.format.mediumPrint-Electronic
dc.languageen
dc.language.isoeng
dc.publisherThe Royal Society
dc.subjectdirectional spreading estimation
dc.subjectin situ wave data
dc.subjectpoint measurement
dc.subjectsecond-order difference
dc.subjectsurface gravity waves
dc.titleWave directional spreading from point field measurements
dc.typejournal-article
dc.typeJournal Article
plymouth.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/28484326
plymouth.issue2200
plymouth.volume473
plymouth.publication-statusPublished
plymouth.journalProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
dc.identifier.doi10.1098/rspa.2016.0781
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/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.publisher.placeEngland
dcterms.dateAccepted2017-03-21
dc.identifier.eissn1471-2946
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1098/rspa.2016.0781
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2017-04
rioxxterms.typeJournal Article/Review


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