{"xmlId":"12611","NOAAStudyId":"14630","studyName":"Lake El'gygytgyn, NE Russia, MIS 8-12 Biogeochemical Data","doi":"https://doi.org/10.25921/yqy6-h141","uuid":"6e74d334-85b2-42ee-a295-299e9db8dcb3","dataPublisher":"NOAA","contactInfo":{"type":"CONTACT INFORMATION","shortName":"DOC/NOAA/NESDIS/NCEI","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","address":"325 Broadway, E/NE31","city":"Boulder","state":"CO","postalCode":"80305-3328","country":"USA","dataCenterUrl":"https://www.ncei.noaa.gov/products/paleoclimatology","email":"paleo@noaa.gov","phone":"828-271-4800","fax":null,"constraints":"Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site."},"dataType":"PALEOLIMNOLOGY","investigators":"D'Anjou, R.M.; Wei, J.H.; Castaņeda, I.S.; Brigham-Grette, J.; Petsch, S.T.; Finkelstein, D.B.","investigatorDetails":[{"firstName":"Robert","lastName":"D'Anjou","initials":"R.M.","orcId":null},{"firstName":"Jeremy","lastName":"Wei","initials":"J.H.","orcId":null},{"firstName":"Isla","lastName":"Castaņeda","initials":"I.S.","orcId":"0000-0002-2524-9326"},{"firstName":"Julie","lastName":"Brigham-Grette","initials":"J.","orcId":"0000-0003-1248-8966"},{"firstName":"Steven","lastName":"Petsch","initials":"S.T.","orcId":null},{"firstName":"David","lastName":"Finkelstein","initials":"D.B.","orcId":null}],"version":"1.0","funding":[{"fundingAgency":"International Continental Drilling Program (ICDP)","fundingGrant":null},{"fundingAgency":"US National Science Foundation","fundingGrant":"EAR-0602471"},{"fundingAgency":"Bundesministerium für Bildung und Forschung (BMBF)","fundingGrant":null},{"fundingAgency":"Alfred Wegener Institute (AWI) ","fundingGrant":null},{"fundingAgency":"Austrian Federal Ministry of Science and Research (BMWF)","fundingGrant":null},{"fundingAgency":"GeoForschungsZentrum Potsdam (GFZ)","fundingGrant":null},{"fundingAgency":"Russian Academy of Sciences","fundingGrant":null},{"fundingAgency":"Russian Foundation for Basic Research","fundingGrant":null}],"studyNotes":"Organic geochemical proxy data from sediments collected in Arctic Lake El'gygytgyn, NE Russia, \nfor Marine Isotope Stages 8-12 (289 to 464 ka).  Biogeochemical data include plant leaf wax (n-alkane) indices, \narborinol (a biomarker for trees), molecular indicators from dinoflagellates (dinosterol), eustigmatophyte algae \n(long-chain (C28-C32) 1, 15 n-alkyl diols), short-chain n-alkanes, MBT/CBT (Methylation of Branched Tetraether/Cyclization of Branched Tetraether), and branched glycerol dialkyl glycerol tetraethers (GDGTs). ","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/14630","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-lake-14630.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-lake-14630.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/lake","studyCode":null,"scienceKeywords":["biogeochemical cycles","Arctic"],"reconstruction":"Y","contributionDate":"2013-06-28","entryId":"noaa-lake-14630","earliestYearBP":464030,"mostRecentYearBP":288100,"earliestYearCE":-462080,"mostRecentYearCE":-286150,"publication":[{"author":{"name":"R.M. D'Anjou, J.H. Wei, I.S. Castaņeda, J. Brigham-Grette, S.T. Petsch, and D.B. Finkelstein"},"pubYear":2013,"title":"High-latitude environmental change during MIS 9 and 11: biogeochemical evidence from Lake El'gygytgyn, Far East Russia","journal":"Climate of the Past","volume":"9","edition":null,"issue":"2","pages":"567-581","reportNumber":null,"citation":"R.M. D'Anjou, J.H. Wei, I.S. Castaņeda, J. Brigham-Grette, S.T. Petsch, and D.B. Finkelstein. 2013. High-latitude environmental change during MIS 9 and 11: biogeochemical evidence from Lake El'gygytgyn, Far East Russia. Climate of the Past, 9(2), 567-581. doi: 10.5194/cp-9-567-2013","type":"publication","identifier":{"type":"doi","id":"10.5194/cp-9-567-2013","url":"http://dx.doi.org/10.5194/cp-9-567-2013"},"abstract":"Marine isotope stages (MIS) 11 has been proposed as an analog for the present interglacial; however, terrestrial records of this time period are rare. Sediments from Lake El'gygytgyn (67°30' N, 172°5' E) in Far East Russia contain a 3.56 Ma record of climate variability from the Arctic. Here, we present the first terrestrial Arctic reconstruction of environmental and climatic changes from MIS 8 through 12 (289 to 464 ka) using organic geochemical proxies. Terrestrial vegetation changes, as revealed by plant leaf wax (n-alkane) indices and concentrations of arborinol (a biomarker for trees), show increased tree cover around the lake during interglacial periods, with higher concentrations observed during MIS 11 as compared to MIS 9. A similar pattern is also observed in records of aquatic productivity revealed by molecular indicators from dinoflagellates (dinosterol), eustigmatophyte algae (long-chain (C28-C32) 1, 15 n-alkyl diols) in addition to short-chain n-alkanes, where aquatic productivity is highest during MIS 11. Changes recorded in these molecular proxies show a similar structure to relative temperature variability as recorded by the MBT/CBT (Methylation of Branched Tetraether/Cyclization of Branched Tetraether) paleothermometer, based on branched glycerol dialkyl glycerol tetraethers (GDGTs). Additionally, relative MBT/CBT temperature changes generally track pollen and diatom d18O temperature estimates, compiled by other studies, which suggest glacial-interglacial temperature changes of ~ 9 to 12°C. These records of environmental and climatic change indicate Arctic sensitivity to external forcings such as orbital variability and atmospheric greenhouse gas concentrations. Overall, this study indicates that organic geochemical analyses of the Lake El'gygytgyn sediment archive can provide critical insight into the response of lake ecosystems and their sensitivity in high latitude regions.","pubRank":"1"}],"site":[{"NOAASiteId":"54271","siteName":"Lake El'gygytgyn","siteCode":null,"mappable":"Y","locationName":"Continent>Europe>Eastern Europe>Russia","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["67.4997","172.1038"]},"properties":{"southernmostLatitude":"67.4997","northernmostLatitude":"67.4997","westernmostLongitude":"172.1038","easternmostLongitude":"172.1038","minElevationMeters":"492","maxElevationMeters":"492"}},"paleoData":[{"dataTableName":"Elgygytgyn2013biogeochem","NOAADataTableId":"24677","earliestYear":464030,"mostRecentYear":288100,"timeUnit":"cal yr BP","earliestYearBP":464030,"mostRecentYearBP":288100,"earliestYearCE":-462080,"mostRecentYearCE":-286150,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/paleolimnology/asia/russia/elgygytgyn2013biogeochem.txt","urlDescription":"Data","linkText":"elgygytgyn2013biogeochem.txt","variables":[{"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOLIMNOLOGY","cvWhat":"earth system variable>temperature variable>temperature>air temperature>surface air temperature","cvMaterial":"reconstruction material>organic compound index>glycerol dialkyl glycerol tetraether index","cvError":null,"cvUnit":"temperature unit>degree Celsius","cvSeasonality":"annual","cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"MBT/CBT Sun et al.(2012)","cvFormat":"Numeric","cvShortName":null},{"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOLIMNOLOGY","cvWhat":"earth system variable>temperature variable>temperature>air temperature>surface air temperature","cvMaterial":"reconstruction material>organic compound index>glycerol dialkyl glycerol tetraether index","cvError":null,"cvUnit":"temperature unit>degree Celsius","cvSeasonality":"annual","cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"MBT/CBT Weijers et al. 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