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Anomalously mild Younger Dryas summer conditions in southern Greenland
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2002 (Engelska)Ingår i: Geology, ISSN 0091-7613, E-ISSN 1943-2682, Vol. 30, nr 5, s. 427-430Artikel i tidskrift (Refereegranskat) Published
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Text
Abstract [en]

The first late-glacial lake sediments found in Greenland were analyzed with respect to a variety of environmental variables. The analyzed sequence covers the time span between 14400 and 10500 calendar yr B.P., and the data imply that the conditions in southernmost Greenland during the Younger Dryas stadial, 12800-11550 calendar yr B.P., were characterized by an arid climate with cold winters and mild summers, preceded by humid conditions with cooler summers. Climate models imply that such an anomaly may be explained by local climatic phenomenon caused by high insolation and Fohn effects. It shows that regional and local variations of Younger Dryas summer conditions in the North Atlantic region may have been larger than previously found from proxy data and modeling experiments.

Ort, förlag, år, upplaga, sidor
Lund Univ, Dept Geol Quaternary Geol, SE-22363 Lund, Sweden. Geol Survey Denmark & Greenland, DK-2400 Copenhagen, Denmark. Umea Univ, Dept Ecol & Environm Sci, SE-90187 Umea, Sweden. Univ Copenhagen, Inst Geol, DK-1350 Copenhagen K, Denmark. Free Univ Amsterdam, Dept Quaternary Geol & Geomorphol, NL-1081 HV Amsterdam, Netherlands. Danish Meteorol Inst, DK-2100 Copenhagen, Denmark. Danish Natl Environm Res Inst, Dept Marine Ecol, DK-4000 Roskilde, Denmark., 2002. Vol. 30, nr 5, s. 427-430
Nyckelord [en]
Southern Greenland, lake sediments, paleoclimatic proxy records, Younger Dryas
Forskningsämne
SWEDARCTIC 2002, Kap Farvel; SWEDARCTIC 2003, Grönland 2003
Identifikatorer
URN: urn:nbn:se:polar:diva-2636DOI: 10.1130/0091-7613(2002)030<0427:AMYDSC>2.0.CO;2ISI: 000175579300010OAI: oai:DiVA.org:polar-2636DiVA, id: diva2:894168
Tillgänglig från: 2016-01-14 Skapad: 2016-01-14 Senast uppdaterad: 2017-11-30

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