Show simple item record

dc.contributor.authorMonteban, Dennis
dc.contributor.authorPedersen, Jens Olaf Pepke
dc.contributor.authorNielsen, Morten Holtegaard
dc.date.accessioned2022-05-09T13:52:15Z
dc.date.available2022-05-09T13:52:15Z
dc.date.created2020-12-14T22:53:31Z
dc.date.issued2020
dc.identifier.citationOceanologia. 2020, 62 (4), 460-477.en_US
dc.identifier.issn0078-3234
dc.identifier.urihttps://hdl.handle.net/11250/2994852
dc.description.abstractIn this paper, we discuss the first setup of a hydrodynamic model for the fjord-type estuary Kangerlussuaq, located in West Greenland. Having such a high-fidelity numerical model is important because it allows us to fill in the temporal and spatial gaps left by in situ data and it allows us to examine the response of the fjord to changes in ice sheet runoff. The numerical model is calibrated against in situ data, and a one-year simulation was performed to study the seasonal variability in the physical oceanographic environment and the fjord's response to changing meltwater runoff. The fjord consists of two distinct parts: a deep inner part that is 80 km long with weak currents and a shallow part that covers the outer 100 km of the fjord connected to the ocean. The outer part has very fast currents (∼1.3 m/s), which we suggest prevents winter sea ice formation. The dominant currents in the fjord are oriented parallel to the long axis of the fjord and are driven by tides and (during summer) freshwater inflow from meltwater-fed rivers. Furthermore, mixing processes are characterized by strong tidal mixing and bathymetric restrictions, and the deep-lying water mass is subject to renewal primarily in wintertime and is almost dynamically decoupled from the open ocean during summertime. Finally, a sensitivity study on the changing meltwater runoff was performed, showing that increasing freshwater runoff considerably strengthens stratification in the upper 100 m of the water column in the inner part of the fjord.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.titlePhysical oceanographic conditions and a sensitivity study on meltwater runoff in a West Greenland fjord: Kangerlussuaqen_US
dc.title.alternativePhysical oceanographic conditions and a sensitivity study on meltwater runoff in a West Greenland fjord: Kangerlussuaqen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.pagenumber460-477en_US
dc.source.volume62en_US
dc.source.journalOceanologiaen_US
dc.source.issue4en_US
dc.identifier.doi10.1016/j.oceano.2020.06.001
dc.identifier.cristin1859788
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal