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dc.contributor.authorXie, Lina
dc.contributor.authorYakushev, Evgeniy
dc.contributor.authorSemiletov, Igor
dc.contributor.authorGrinko, Andrey
dc.contributor.authorGangnus, Ivan
dc.contributor.authorBerezina, Anfisa
dc.contributor.authorOsadchiev, Alexander
dc.contributor.authorZhdanov, Igor
dc.contributor.authorPolukhin, Alexander
dc.contributor.authorMoiseeva, Julia
dc.contributor.authorPurgina, Darya
dc.contributor.authorPipko, Irina
dc.contributor.authorPugach, Svetlana
dc.contributor.authorDudarev, Oleg
dc.contributor.authorGe, Zhenming
dc.date.accessioned2023-09-21T14:19:53Z
dc.date.available2023-09-21T14:19:53Z
dc.date.created2023-07-12T13:15:23Z
dc.date.issued2023
dc.identifier.citationFrontiers in Marine Science. 2023, 10.en_US
dc.identifier.issn2296-7745
dc.identifier.urihttps://hdl.handle.net/11250/3091144
dc.description.abstractThe discharge of rivers and the subsequent dispersion of their plumes play a pivotal role in the biogeochemical cycling of the Arctic Ocean. Based on the data collected during annual transects conducted in the autumn period (September-October) from 2015-2020, this study explores the effect of River Lena plume dispersion on the seasonal and interannual changes in the hydrophysical and biogeochemical structure of the southeastern Laptev Sea. The temperature-salinity relationship (T-S), Redfield ratio and multiparameter cluster analysis were used to investigate variations in the water mass structure along the transect. The results revealed that the plume’s interannual and seasonal spreading patterns play a crucial role in regulating the local physical, biogeochemical, and biological processes in the southern Laptev Sea. During September-October, the hydrochemical water mass structure along the transects shifted from highly stratified to unstratified as the plume’s mixing intensity increased. Anomalous hydrochemical distributions were observed due to coastal upwelling, which was primarily characterized by high total alkalinity and nitrate levels, and low organic phosphorus, nitrite, and ammonia levels in the seawater. Wind and cold weather conditions drive deep vertical mixing of seawater, causing the resuspension of bottom sediment and the subsequent enrichment of bottom water by nutrients. Multi-parameter cluster analysis is used to describe the details of water mass structures in the highly dynamic southern Laptev Sea, with water mass structures typically undergoing significant changes within two weeks between September and October. The migration and transformation of water masses throughout the seasons are influenced by the volume of river discharge, fall-winter cooling, and atmospheric circulation patterns. Furthermore, the general atmospheric circulation is confirmed to be the primary cause of the interannual variation in the spread of the Lena River plume over the southeast Laptev Sea.en_US
dc.language.isoengen_US
dc.publisherFrontiersen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleBiogeochemical structure of the Laptev Sea in 2015-2020 associated with the River Lena plumeen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© 2023 The Authorsen_US
dc.source.pagenumber20en_US
dc.source.volume10en_US
dc.source.journalFrontiers in Marine Scienceen_US
dc.identifier.doi10.3389/fmars.2023.1180054
dc.identifier.cristin2162135
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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