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dc.contributor.authorAksamit, Nikolas Olson
dc.contributor.authorScharien, Randall K.
dc.contributor.authorHutchings, Jennifer
dc.contributor.authorLukovich, Jennifer
dc.date.accessioned2023-08-15T07:54:19Z
dc.date.available2023-08-15T07:54:19Z
dc.date.issued2023-04-11
dc.description.abstractSea ice drift and deformation, namely sea ice dynamics, play a significant role in atmosphere–ice–ocean coupling. Deformation patterns in sea ice can be observed over a wide range of spatial and temporal scales, though high-resolution objective quantification of these features remains difficult. In an effort to better understand local deformation of sea ice, we adapt the trajectory-stretching exponents (TSEs), quasi-objective measures of Lagrangian stretching in continuous media, to sea ice buoy data and develop a temporal analysis of TSE time series. Our work expands on previous ocean current studies that have shown TSEs provide an approximation of Lagrangian coherent structure diagnostics when only sparse trajectory data are available. As TSEs do not require multiple buoys, we find they have an expanded range of use when compared with traditional Eulerian buoy-array deformation metrics and provide local-stretching information below the length scales possible when averaging over buoy arrays. We verify the ability of TSEs to temporally and spatially identify dynamic features for three different sea ice datasets. The ability of TSEs to quantify trajectory stretching is verified by concurrent ice fracture in buoy neighborhoods ranging from tens to hundreds of kilometers in diameter, as well as the temporal concurrence of significant storm events.en_US
dc.identifier.citationAksamit NO, Scharien RK, Hutchings J, Lukovich. A quasi-objective single buoy approach for un- derstanding Lagrangian coherent structures and sea ice dynamics. The Cryosphere. 2023;17:1545-1566en_US
dc.identifier.cristinIDFRIDAID 2160828
dc.identifier.doi10.5194/tc-17-1545-2023
dc.identifier.issn1994-0416
dc.identifier.issn1994-0424
dc.identifier.urihttps://hdl.handle.net/10037/29933
dc.language.isoengen_US
dc.publisherCopernicus Publicationsen_US
dc.relation.journalThe Cryosphere
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2023 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleA quasi-objective single buoy approach for un- derstanding Lagrangian coherent structures and sea ice dynamicsen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)