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dc.date.accessioned2020-05-30T18:36:02Z
dc.date.available2020-05-30T18:36:02Z
dc.date.created2020-01-09T15:40:00Z
dc.date.issued2019
dc.identifier.citationVan Pelt, Ward Pohjola, Veijo Pettersson, Rickard Marchenko, Sergey A. Kohler, Jack Luks, Bartlomiej Hagen, Jon Ove Methlie Schuler, Thomas Dunse, Thorben Noel, Brice Reijmer, Carleen . A long-term dataset of climatic mass balance, snow conditions, and runoff in Svalbard (1957-2018). The Cryosphere. 2019, 13(9), 2259-2280
dc.identifier.urihttp://hdl.handle.net/10852/76518
dc.description.abstractAbstract. The climate in Svalbard is undergoing amplified change compared to the global mean. This has major implications for runoff from glaciers and seasonal snow on land. We use a coupled energy balance–subsurface model, forced with downscaled regional climate model fields, and apply it to both glacier-covered and land areas in Svalbard. This generates a long-term (1957–2018) distributed dataset of climatic mass balance (CMB) for the glaciers, snow conditions, and runoff with a 1 km×1 km spatial and 3-hourly temporal resolution. Observational data including stake measurements, automatic weather station data, and subsurface data across Svalbard are used for model calibration and validation. We find a weakly positive mean net CMB (+0.09 m w.e. a−1) over the simulation period, which only fractionally compensates for mass loss through calving. Pronounced warming and a small precipitation increase lead to a spatial-mean negative net CMB trend (−0.06 m w.e. a−1 decade−1), and an increase in the equilibrium line altitude (ELA) by 17 m decade−1, with the largest changes in southern and central Svalbard. The retreating ELA in turn causes firn air volume to decrease by 4 % decade−1, which in combination with winter warming induces a substantial reduction of refreezing in both glacier-covered and land areas (average −4 % decade−1). A combination of increased melt and reduced refreezing causes glacier runoff (average 34.3 Gt a−1) to double over the simulation period, while discharge from land (average 10.6 Gt a−1) remains nearly unchanged. As a result, the relative contribution of land runoff to total runoff drops from 30 % to 20 % during 1957–2018. Seasonal snow on land and in glacier ablation zones is found to arrive later in autumn (+1.4 d decade−1), while no significant changes occurred on the date of snow disappearance in spring–summer. Altogether, the output of the simulation provides an extensive dataset that may be of use in a wide range of applications ranging from runoff modelling to ecosystem studies.
dc.languageEN
dc.publisherCopernicus Publications under license by EGU – European Geosciences Union GmbH
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleA long-term dataset of climatic mass balance, snow conditions, and runoff in Svalbard (1957-2018)
dc.typeJournal article
dc.creator.authorVan Pelt, Ward
dc.creator.authorPohjola, Veijo
dc.creator.authorPettersson, Rickard
dc.creator.authorMarchenko, Sergey A.
dc.creator.authorKohler, Jack
dc.creator.authorLuks, Bartlomiej
dc.creator.authorHagen, Jon Ove Methlie
dc.creator.authorSchuler, Thomas
dc.creator.authorDunse, Thorben
dc.creator.authorNoel, Brice
dc.creator.authorReijmer, Carleen
cristin.unitcode185,15,22,0
cristin.unitnameInstitutt for geofag
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.cristin1769695
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=The Cryosphere&rft.volume=13&rft.spage=2259&rft.date=2019
dc.identifier.jtitleThe Cryosphere
dc.identifier.volume13
dc.identifier.issue9
dc.identifier.startpage2259
dc.identifier.endpage2280
dc.identifier.doihttps://doi.org/10.5194/tc-13-2259-2019
dc.identifier.urnURN:NBN:no-79595
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn1994-0416
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/76518/2/tc-13-2259-2019.pdf
dc.type.versionPublishedVersion
dc.relation.projectOTHER/Uppsala University - Finn Malmgrens stipend.
dc.relation.projectNFR/243808
dc.relation.projectOTHER/Ymer-80
dc.relation.projectNFR/251658
dc.relation.projectOTHER/Swedish Research Council - VR 3903


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