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dc.date.accessioned2020-12-04T20:21:41Z
dc.date.available2020-12-04T20:21:41Z
dc.date.created2020-11-27T09:59:48Z
dc.date.issued2021
dc.identifier.citationLøken, Trygve Kvåle Rabault, Jean Jensen, Atle Sutherland, Graig Christensen, Kai Håkon Müller, Malte . Wave measurements from ship mounted sensors in the Arctic marginal ice zone. Cold Regions Science and Technology. 2020
dc.identifier.urihttp://hdl.handle.net/10852/81419
dc.description.abstractThis study presents wave measurements in the Marginal Ice Zone (MIZ) obtained from ship mounted sensors. The system combines altimeter readings from the ship bow with ship motion correction data to provide estimated single point ocean surface elevation. Significant wave height and mean wave period, as well as one-dimensional wave spectra are derived from the combined measurements. The results are compared with integrated parameters from two spectral wave models over a period of eight days in the open ocean, and with spectra and integrated parameters derived from motion detecting instruments placed on ice floes inside the MIZ. Mean absolute errors of the integrated parameters are in the range 13.4-29.9% when comparing with the spectral wave models and 1.0-9.6% when comparing with valid motion detecting instruments. The spatial wave damping coefficient is estimated by looking at the change in spectral wave amplitude found at discrete frequency values as the ship was moving along the longitudinal direction of the MIZ within time intervals where the wave field is found to be approximately constant in time. As expected from theory, high frequency waves are effectively dampened by the presence of sea ice. The observed wave attenuation rates compare favourably with a two-layer dissipation model. Our methodology can be regarded as a simple and reliable way to collect more waves-in-ice data as it can be easily added to any ship participating to ice expeditions, at little extra cost.
dc.languageEN
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleWave measurements from ship mounted sensors in the Arctic marginal ice zone
dc.typeJournal article
dc.creator.authorLøken, Trygve Kvåle
dc.creator.authorRabault, Jean
dc.creator.authorJensen, Atle
dc.creator.authorSutherland, Graig
dc.creator.authorChristensen, Kai Håkon
dc.creator.authorMüller, Malte
cristin.unitcode185,15,13,15
cristin.unitnameMekanikk
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.cristin1853257
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Cold Regions Science and Technology&rft.volume=&rft.spage=&rft.date=2020
dc.identifier.jtitleCold Regions Science and Technology
dc.identifier.volume182
dc.identifier.doihttps://doi.org/10.1016/j.coldregions.2020.103207
dc.identifier.urnURN:NBN:no-84489
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn0165-232X
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/81419/3/1-s2.0-S0165232X20304547-main.pdf
dc.type.versionPublishedVersion
cristin.articleid103207
dc.relation.projectNFR/280625


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