{"NOAAStudyId":"11936","contactInfo":{"address":"325 Broadway, E/NE31","city":"Boulder","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.","country":"USA","dataCenterUrl":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data","email":"paleo@noaa.gov","fax":"303-497-6513","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","phone":"303-497-6280","postalCode":"80305-3328","shortName":"DOC/NOAA/NESDIS/NCEI","state":"CO","type":"CONTACT INFORMATION"},"contributionDate":"2011-09-15","dataPublisher":"NOAA","dataType":"PALEOLIMNOLOGY","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/lake","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-lake-11936.xml","doi":null,"earliestYearBP":4142,"earliestYearCE":-2192,"entryId":"noaa-lake-11936","funding":[{"fundingAgency":"Natural Sciences and Engineering Research Council of Canada","fundingGrant":"Polar Continental Shelf Project"}],"investigators":"Cuven, S.; Francus, P.; Lamoureux, S.F.","mostRecentYearBP":-55,"mostRecentYearCE":2005,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/11936","originalSource":null,"publication":[{"abstract":"A long sedimentary sequence from East Lake, Cape Bounty, Melville \r\nIsland (74°55'N, 109°32'W) contains a 4200 year-long clastic \r\nvarved record of paleohydrologic variations at high resolution. \r\nSedimentary elemental geochemistry from micro X-ray fluorescence \r\n(m-XRF) and sediment fabric variability reflect changes in sediment \r\nsources and lacustrine conditions through time. The sedimentary \r\nenvironment progressed from marine in the mid-Holocene, to estuarian \r\nfrom 2195 BC to 243 AD, to fully lacustrine source after 244 AD. \r\nCorrelation with local meteorological data indicates that varve \r\nthickness (VT) is positively correlated with snow depth on May 1st \r\nand negatively correlated with mean Sept-May temperatures. \r\nOur paleoclimatic reconstruction from VT series revealed high snow \r\naccumulation and warm Sept-May months before 1350 BC, and a period \r\nof low snow accumulation and cold Sept-May between 1600-1900 AD \r\nthat may correspond to the Little Ice Age. The general trends \r\nof VT series from Cape Bounty are in phase with the d18O series \r\nin Agassiz Ice Cap, and in anti-phase with the VT series from \r\nLower Murray Lake in the northeastern of Queen's Elizabeth Islands \r\n(QEI). Low mean Arctic temperatures coincide with clusters of high \r\nsediment yield events at East, Nicolay and South Sawtooth Lakes, \r\nespecially during 1600-1750 AD and 1810-1910 AD. The East Lake \r\nrecord also exhibits the signature of the Atlantic Multidecadal \r\nOscillation (AMO) for periods: 600-850 AD, 1400-1550 AD \r\nand 1750-1850 AD.\r\n","author":null,"citation":"Cuven, S., P. Francus, and S. Lamoureux. 2011. \r\nMid to Late Holocene hydroclimatic and geochemical records from \r\nthe varved sediments of East Lake, Cape Bounty, Canadian High Arctic. \r\nQuaternary Science Reviews, Vol. 30, Issues 19-20, September 2011, \r\npp. 2651-2665. \r\ndoi:10.1016/j.quascirev.2011.05.019 \r\n\r\n","edition":null,"identifier":{"id":"10.1016/j.quascirev.2011.05.019","type":"doi","url":"http://dx.doi.org/10.1016/j.quascirev.2011.05.019"},"issue":null,"journal":"Quaternary Science Reviews","pages":null,"pubRank":"1","pubYear":2011,"reportNumber":null,"title":"Mid to Late Holocene hydroclimatic and geochemical records from  the varved sediments of East Lake, Cape Bounty, Canadian High Arctic.","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["hydrology"],"site":[{"NOAASiteId":"52349","geo":{"geoType":"Feature","geometry":{"coordinates":["74.8833","-109.5333"],"type":"POINT"},"properties":{"easternmostLongitude":"-109.5333","maxElevationMeters":"5","minElevationMeters":"5","northernmostLatitude":"74.8833","southernmostLatitude":"74.8833","westernmostLongitude":"-109.5333"}},"locationName":"Continent>North America>Canada>Nunavut","mappable":"Y","paleoData":[{"NOAADataTableId":"20254","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>physical properties"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/nu/east2011varve.txt","linkText":"east2011varve.txt","urlDescription":"Data","variables":[{"cvAdditionalInfo":"5-yr Gaussian weighted moving average","cvDataType":"PALEOLIMNOLOGY","cvDetail":"smoothed","cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"millimeter","cvWhat":"physical property>length>varve thickness"},{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":"varve number","cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"count","cvWhat":"sampling metadata>notes"},{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth>depth at sample start"},{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":"image analysis","cvSeasonality":null,"cvShortName":null,"cvUnit":"millimeter","cvWhat":"physical property>length>varve thickness"},{"cvAdditionalInfo":"25-yr Gaussian weighted moving average","cvDataType":"PALEOLIMNOLOGY","cvDetail":"smoothed","cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"millimeter","cvWhat":"physical property>length>varve thickness"}]},{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>physical properties"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/nu/east2011varve.xls","linkText":"east2011varve.xls","urlDescription":"Data","variables":[]}],"dataTableName":"EastLake1","dataTableNotes":null,"earliestYear":-2192,"earliestYearBP":4142,"earliestYearCE":-2192,"mostRecentYear":2005,"mostRecentYearBP":-55,"mostRecentYearCE":2005,"species":[],"timeUnit":"AD"}],"siteName":"East Lake NU"}],"studyCode":null,"studyName":"East Lake, Melville Island, Canada 4200 Year Varve Thickness Data","studyNotes":"Varve thickness (VT) was measured for the period 2005-1999 AD \non a short gravity core (CB06EG1) taken in 2006. Varve thickness  \nwas measured for the period 1998 AD-2192 BC on a long gravity \ncore (CB06EV1) taken in 2006. An erosive turbidite eroded \nsediments from 1972 to 1966 AD. Correlation with instrumental \ndata were made on the 1973 - 2005 AD only. Data are presented \nalong an AD/BC time scale and a Varve Years time scale. \n\nCaution must be used when interpreting the section from 2192 BC \nto 243 AD because it was attributed to an estuarine environment \nthat may have affected the varve formation. Chronology was \nsupported by 137-Cs. The counting error sum for two varve counts \n(#1 and #2) of the same analyst was estimated as mean square \nerror (Lotter and Lemcke, 1999) and it is equal to 4027 +/- 232 \nyears (Table 1 of the paper). Count #2 was selected. \n\nEast Lake, Cape Bounty, Melville Island, Canada: \n74°53'N, 109°32'W, 32m depth, 5m asl.   \n","version":"1.0","xmlId":"10039"}