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dc.contributor.authorJackson, Rebecca H.
dc.contributor.authorShroyer, Emily L.
dc.contributor.authorNash, Jonathan D.
dc.contributor.authorSutherland, David A.
dc.contributor.authorCarroll, Dustin
dc.contributor.authorFried, Mason J.
dc.contributor.authorCatania, Ginny A.
dc.contributor.authorBartholomaus, Timothy C.
dc.contributor.authorStearns, Leigh A.
dc.date.accessioned2018-11-13T21:08:47Z
dc.date.available2018-11-13T21:08:47Z
dc.date.issued2017-06-03
dc.identifier.citationJackson, R. H., E. L. Shroyer, J. D. Nash, D. A. Sutherland, D. Carroll, M. J. Fried, G. A. Catania, T. C. Bartholomaus, and L. A. Stearns (2017), Near-glacier surveying of a subglacial discharge plume: Implications for plume parameterizations, Geophys. Res. Lett., 44, 6886–6894, doi:10.1002/2017GL073602en_US
dc.identifier.urihttp://hdl.handle.net/1808/27327
dc.description.abstractAt tidewater glaciers, plume dynamics affect submarine melting, fjord circulation, and the mixing of meltwater. Models often rely on buoyant plume theory to parameterize plumes and submarine melting; however, these parameterizations are largely untested due to a dearth of near‐glacier measurements. Here we present a high‐resolution ocean survey by ship and remotely operated boat near the terminus of Kangerlussuup Sermia in west Greenland. These novel observations reveal the 3‐D structure and transport of a near‐surface plume, originating at a large undercut conduit in the glacier terminus, that is inconsistent with axisymmetric plume theory, the most common representation of plumes in ocean‐glacier models. Instead, the observations suggest a wider upwelling plume—a “truncated” line plume of ∼200 m width—with higher entrainment and plume‐driven melt compared to the typical axisymmetric representation. Our results highlight the importance of a subglacial outlet's geometry in controlling plume dynamics, with implications for parameterizing the exchange flow and submarine melt in glacial fjord models.en_US
dc.description.sponsorshipNNX12AP50Gen_US
dc.publisherAmerican Geophysical Unionen_US
dc.rights© 2017. American Geophysical Union. All Rights Reserved.en_US
dc.rights.uri160242657280en_US
dc.titleNear-glacier surveying of a subglacial discharge plume: Implications for plume parameterizationsen_US
dc.typeArticleen_US
kusw.kuauthorStearns, Leigh
kusw.kudepartmentGeologyen_US
dc.identifier.doi10.1002/2017GL073602en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-3763-8820en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-2970-9895en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-2843-8608en_US
dc.identifier.orcidhttps://orcid.org/0000-0003-1686-5255en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-4197-152Xen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-7561-5902en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-1470-6720en_US
dc.identifier.orcidhttps://orcid.org/0000-0001-7358-7015en_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.rights.accessrightsopenAccessen_US


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