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dc.contributor.authorShestov, Aleksey
dc.contributor.authorHøyland, Knut Vilhelm
dc.contributor.authorErvik, Åse
dc.date.accessioned2019-09-02T08:19:43Z
dc.date.available2019-09-02T08:19:43Z
dc.date.created2018-07-06T15:27:26Z
dc.date.issued2018
dc.identifier.citationCold Regions Science and Technology. 2018, 152 23-34.nb_NO
dc.identifier.issn0165-232X
dc.identifier.urihttp://hdl.handle.net/11250/2611945
dc.description.abstractFour ice ridges (R1, R2, R3, and R4) were studied during the spring of 2015 in the Arctic Ocean. During the Norwegian Young Sea Ice expedition (N-ICE2015) from January 11 to June 23, the R/V Lance was moored at four different ice floes (Floe 1, Floe 2, Floe 3, and Floe 4) and drifted along with them. Ice ridge studies were performed on Floe 3 (R1, R2) and Floe 4 (R3, R4). From May 21 to June 23, all ice ridges were drilled several times for structural measurements and cored for physical property measurements. In addition, ridges R1 and R4 were instrumented with Oceanetic thermistor buoys, model 908-20 (OTB 908-20), which remotely logged the vertical temperature profile through the sail and keel of the ridges from April 29 to June 28. After combining these datasets, we obtained thermodynamic properties and evaluated heat budgets of the ridge keels in R1 and R4. Ridge R1 was measured during the transition from the main phase to the decay phase, and ridge R4 was measured during the decay phase. In R1, a 3–4 W/m2 upwards vertical conductive heat flux through the keel was calculated, which caused cooling of the keel and the growth of new ice (i.e., 0.5 m over 22 days from May 5 to May 27, as observed by temperature readings). The total amount of heat extracted from the keel was spent on cooling the keel and growing new ice in fractions of 0.4 and 0.6, respectively. In R4, a downwards vertical conductive heat flux (up to 2 W/m2) transported energy into the keel through the top surface of the keel, while the bottom of the keel melted (i.e., 1.6 m over 12 days from June 12 to June 24) due to the oceanic heat flux.nb_NO
dc.language.isoengnb_NO
dc.publisherElseviernb_NO
dc.titleDecay phase thermodynamics of ice ridges in the Arctic Oceannb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.pagenumber23-34nb_NO
dc.source.volume152nb_NO
dc.source.journalCold Regions Science and Technologynb_NO
dc.identifier.doi10.1016/j.coldregions.2018.04.005
dc.identifier.cristin1596152
dc.relation.projectAndre: Norsk Polarinstitutt ICEnb_NO
dc.relation.projectNorges forskningsråd: 203471nb_NO
dc.description.localcodeThis article will not be available due to copyright restrictions © 2018 by Elsevier.nb_NO
cristin.unitcode194,64,91,0
cristin.unitnameInstitutt for bygg- og miljøteknikk
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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