{"NOAAStudyId":"18556","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":"2015-03-20","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-18556.xml","doi":null,"earliestYearBP":14661,"earliestYearCE":-12711,"entryId":"noaa-lake-18556","funding":[{"fundingAgency":"Natural Sciences and Engineering Research Council of Canada","fundingGrant":null}],"investigators":"Gajewski, K.J.; Bunbury, J.-M.; Vetter, M.; Kroeker, N.; Khan, A.H.","mostRecentYearBP":-50,"mostRecentYearCE":2000,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/18556","originalSource":null,"publication":[{"abstract":"The St. Elias Mountain region has occupied an important place in the study of the Quaternary because it presents a relatively accessible non-polar icefield and an array of environments from tundra to boreal forest. Paleoenvironmental studies in southwestern Yukon have documented the broad-scale climatic changes of the past 20 000 years, although few studies exist with well-dated sequences at high temporal resolution. Picea glauca arrived across the entire region around 10 000 years ago; however, the details regarding its migration pathways are not well known. Available records indicate few major changes in the composition of the boreal forest vegetation since that time. A slightly more intense fire regime in the early to mid Holocene has been suggested, but this conclusion is based on only a few studies. Variations in the tree line during the Holocene have been examined, but these studies also lack details. There is no evidence for more extensive grasslands in the area during the Holocene. Paleolimnological studies indicate that changes in populations of aquatic organisms have occurred in response to either Holocene climates or watershed variability.","author":{"name":"Gajewski, K.; Bunbury, J.; Vetter, M.; Kroeker, N.; Khan, A.H. "},"citation":"Gajewski, K.; Bunbury, J.; Vetter, M.; Kroeker, N.; Khan, A.H. 2014. Paleoenvironmental studies in southwestern Yukon. Arctic, 67(suppl. 1), ASTIS record 79053, 58-70. doi: 10.14430/arctic4349","edition":"ASTIS record 79053","identifier":{"id":"10.14430/arctic4349","type":"doi","url":"http://dx.doi.org/10.14430/arctic4349"},"issue":"suppl. 1","journal":"Arctic","pages":"58-70","pubRank":"1","pubYear":2014,"reportNumber":null,"title":"Paleoenvironmental studies in southwestern Yukon","type":"publication","volume":"67"}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"56513","geo":{"geoType":"Feature","geometry":{"coordinates":["61.1","-138.25"],"type":"POINT"},"properties":{"easternmostLongitude":"-138.25","maxElevationMeters":"1326","minElevationMeters":"1326","northernmostLatitude":"61.1","southernmostLatitude":"61.1","westernmostLongitude":"-138.25"}},"locationName":"Continent>North America>Canada>Yukon Territory","mappable":"Y","paleoData":[{"NOAADataTableId":"28934","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth 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Data","studyNotes":"Lake sediment data and tree-ring chronologies from the St. Elias Mountain region of southwest Yukon.  Data from figures 4 and 5 are presented, including new charcoal and tree-ring chronologies, plus some previously published data. ","version":"1.0","xmlId":"16237"}