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dc.contributor.authorSandven, Håkon
dc.contributor.authorHamre, Børge
dc.contributor.authorPetit, Tristan
dc.contributor.authorRöttgers, Rudiger
dc.contributor.authorLiu, Hongbo
dc.contributor.authorGranskog, Mats
dc.date.accessioned2024-02-20T07:27:31Z
dc.date.available2024-02-20T07:27:31Z
dc.date.created2023-06-23T14:26:55Z
dc.date.issued2023
dc.identifier.issn0079-6611
dc.identifier.urihttps://hdl.handle.net/11250/3118539
dc.description.abstractHydrographic and bio-optical measurements were conducted along a south–north transect on the northwestern Barents Sea shelf from early spring to late summer in 2021. Strong climate change manifestations observed in this region are rapidly changing the marine environment. These rare observations cover the seasonal evolution from well-mixed and sea ice-covered winter conditions, through sea ice retreat in spring, to late summer where the sea ice had largely retreated and the water column was stratified due to sea ice melt. Phytoplankton drives the spatial and temporal variability in optical properties in most of the water column, but increased scattering and absorption could also be seen in the bottom boundary layer due to resuspended particles. The relationship between chlorophyll-a and particulate absorption deviates from the globally observed relationship, likely due to light adaptations in the ice-covered water masses. We recommend developing specific models for spring phytoplankton growth in ice-covered waters to accurately account for self-shading effects. The absorption of colored dissolved organic matter (CDOM) was relatively low, due to waters of Atlantic origin in the studied region, and varied considerably less than particulate absorption. CDOM was nevertheless the optically dominant ocean constituent in the very clear waters in late winter. Regional relationships for estimating particulate organic carbon (POC) and chlorophyll-a concentrations from in situ attenuation and fluorescence measurements were developed. POC may act as an alternative indicator to chlorophyll-a for optical properties in ice-covered open ocean, which is relevant for light availability parametrizations in biogeochemical ocean models.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.subjectMarin optikken_US
dc.subjectMarine opticsen_US
dc.subjectBarentshaveten_US
dc.subjectBarents Seaen_US
dc.subjectBio-optikken_US
dc.subjectBio-opticsen_US
dc.titleSeasonality and drivers of water column optical properties on the northwestern Barents Sea shelfen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2023 the authorsen_US
dc.source.articlenumber103076en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.doi10.1016/j.pocean.2023.103076
dc.identifier.cristin2157522
dc.source.journalProgress in Oceanographyen_US
dc.relation.projectNorges forskningsråd: 276730en_US
dc.relation.projectEC/H2020/101003826en_US
dc.subject.nsiVDP::Oseanografi: 452en_US
dc.subject.nsiVDP::Oceanography: 452en_US
dc.subject.nsiVDP::Oseanografi: 452en_US
dc.subject.nsiVDP::Oceanography: 452en_US
dc.subject.nsiVDP::Oseanografi: 452en_US
dc.subject.nsiVDP::Oceanography: 452en_US
dc.identifier.citationProgress in Oceanography. 2023, 217, 103076.en_US
dc.source.volume217en_US


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal