Temperatures of the past 2000years inferred from lake sediments, southwest Yukon Territory, Canada

Lake sediments from four sites in the southwest Yukon Territory, Canada, provided paleotemperature records for the past 2000yr. An alpine and a forest site from the southeastern portion of the study area, near Kluane Lake, and another alpine-forest pair of lakes from the Donjek River area located to...

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Published inQuaternary research Vol. 77; no. 3; pp. 355 - 367
Main Authors Bunbury, Joan, Gajewski, Konrad
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.05.2012
Subjects
Chironomids
Estimates
Forests
Freshwater
Lake sediments
Lakes
Late Holocene
Little Ice Age
Medieval Climate Anomaly
Northwest
Ostracodes
Quantitative paleoclimate reconstructions
Rivers
Sediments
Southwest
Yukon Territory
Late Holocene
Yukon Territory
Ostracodes
Lake sediments
Quantitative paleoclimate reconstructions
Little Ice Age
Chironomids
Medieval Climate Anomaly
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Summary:Lake sediments from four sites in the southwest Yukon Territory, Canada, provided paleotemperature records for the past 2000yr. An alpine and a forest site from the southeastern portion of the study area, near Kluane Lake, and another alpine-forest pair of lakes from the Donjek River area located to the northwest yielded chironomid records that were used to provide quantitative estimates of mean July air temperature. Prior to AD 800, the southwest Yukon was relatively cool whereas after AD 800 temperatures were more variable, with warmer conditions between ~AD 1100 and 1400, cooler conditions during the Little Ice Age (~AD 1400 to 1850), and warming thereafter. These records compare well with other paleoclimate evidence from the region.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0033-5894
1096-0287
DOI:10.1016/j.yqres.2012.01.002