{"NOAAStudyId":"13115","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":"2012-06-30","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-13115.xml","doi":null,"earliestYearBP":10329,"earliestYearCE":-8379,"entryId":"noaa-lake-13115","funding":[],"investigators":"Anderson, N.J.; Liversidge, A.C.; McGowan, S.; Jones, M.D.","mostRecentYearBP":-58,"mostRecentYearCE":2008,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/13115","originalSource":null,"publication":[{"abstract":"The Kangerlussuaq area of southwest Greenland is a lake-rich landscape \r\nthat covers a climate gradient: a more maritime, cooler and wetter \r\ncoastal zone contrasts with a dry, continental interior. Radiocarbon-\r\ndated sediment sequences (covering ~11,200-8,300 cal year) from paired \r\nlakes at the coast and the head of the fjord were analysed for \r\nlithostratigraphic variables (organic-matter content, bulk density, \r\nTi, Ca). Minerogenic and carbon accumulation rates from the four lakes \r\nwere compared to determine catchment and lake response to Holocene \r\nclimatic variability. Catchment erosion at the coast was dominated by \r\ncryonival processes, with considerable sediment production due to the \r\nlimited vegetation cover and exposed rock faces. Input of minerogenic \r\nsediment at one site (AT4) was high (>1 gDW cm-2 year-1) during the \r\nperiod 5,800-4,000 cal year BP, perhaps reflecting intensification \r\nof cryogenic processes on northeast-facing slopes and rapid delivery \r\nto the lake. This period of erosional activity was not observed at \r\nthe nearby, higher elevation site (AT1) due to the lower catchment \r\nrelief; instead, there was an abrupt decline in carbon and minerogenic \r\naccumulation rates at ~5,800 cal year BP. Sediment accumulation rates \r\nat the inland sites were much lower (<0.005 gDW cm-2 year-1) reflecting \r\ngreater catchment stability (more extensive vegetation cover), lower \r\nrelief and substantially lower precipitation, but synchronous increases \r\nin mineral accumulation rates from ~1,200 to 1,000 cal year BP may \r\nreflect wind erosion associated with regional cooling and local aridity. \r\nCarbon-accumulation-rate profiles were similar at the two inland sites, \r\nwith higher-than-average accumulation (~6-8 g C m-2 year-1) during \r\nthe early Holocene and a subsequent decline after ~6,000 cal year BP. \r\nAt the inland lakes, both mineral and carbon accumulation rates exhibited \r\na stronger link to climate, driven by trends in effective precipitation \r\nand regional aeolian activity. Catchment differences (relief, altitude) \r\nlead to more individualistic records in both erosion history and lake \r\nproductivity at the coast. \r\n","author":null,"citation":"Anderson, N.J., A.C. Liversidge, S. McGowan, and M.D. Jones. 2012. \r\nLake and catchment response to Holocene environmental change: \r\nspatial variability along a climate gradient in southwest Greenland. \r\nJournal of Paleolimnology, Vol. 48, No. 1, June 2012, pp. 209-222. \r\nDOI: 10.1007/s10933-012-9616-3 ","edition":null,"identifier":{"id":"10.1007/s10933-012-9616-3","type":"doi","url":"http://dx.doi.org/10.1007/s10933-012-9616-3"},"issue":null,"journal":"Journal of Paleolimnology","pages":null,"pubRank":"1","pubYear":2012,"reportNumber":null,"title":"Lake and catchment response to Holocene environmental change:  spatial variability along a climate gradient in southwest Greenland","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["PAGES 2k Network","PAGES Arctic 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property>density"},{"cvAdditionalInfo":null,"cvDataType":"PALEOLIMNOLOGY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year","cvWhat":"age variable>age"}]},{"NOAAKeywords":["earth science>paleoclimate>paleolimnology>geochemistry","earth science>paleoclimate>paleolimnology>physical properties"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/kangerlussuaq2012.xls","linkText":"kangerlussuaq2012.xls","urlDescription":"Data","variables":[]}],"dataTableName":"AT42012","dataTableNotes":null,"earliestYear":10329,"earliestYearBP":10329,"earliestYearCE":-8379,"mostRecentYear":-56,"mostRecentYearBP":-56,"mostRecentYearCE":2006,"species":[],"timeUnit":"cal yr BP"}],"siteName":"AT4"}],"studyCode":null,"studyName":"Kangerlussuaq, Greenland Holocene Multiproxy Lake Sediment Data","studyNotes":"Multiproxy Holocene sediment data from 4 lakes in Kangerlussuaq, \nsouthwest Greenland. The lakes sampled include two near the coast \n(AT1 and AT4) and two at the head of the fjord (SS1381 and SS8). \nPaleoenvironmental proxies measured include Loss-on-Ignition (LOI), \nMass Accumulation Rate (MAR), bulk density, plus Calcium and Titanium \ncontent derived from XRF. \n\nKangerlussuaq lake locations:\nSS1381: 67.014°N, 51.102°W, 196m elevation, 18m water depth. \nSS8:    67.011°N, 51.074°W, 188m elevation, 10m water depth. \nAT1:    66.968°N, 53.402°W, 475m elevation, 16m water depth. \nAT4:    66.965°N, 53.499°W, 200m elevation, 17m water depth. ","version":"1.0","xmlId":"11157"}