A 500 yr speleothem-derived reconstruction of late autumn-winter precipitation, northeast Turkey

Catherine N. Jex, Andy Baker, Jonathan M. Eden, Warren J. Eastwood, Ian J. Fairchild, Melanie J. Leng, Louise Thomas, Hilary J. Sloane

Publikation: Bidrag til tidsskriftArtikelForskningpeer review

24 Citationer (Scopus)

Abstrakt

A verified instrumental calibration of annually resolved δ18O for a stalagmite from Gümüδhane in northeast Turkey is presented and cross-validated using a 'leave-one-out' technique. The amount of late autumn to winter precipitation is negatively correlated with stalagmite δ18O between AD 1938 and 2004. The observed relationship is extrapolated back to ~AD 1500 leading to the first long winter precipitation reconstruction for this region. Modern day October to January precipitation is linked to pressure fields in Western Russia. Anomalously lower reconstructed rainfall is recorded in AD 1540-1560 at which time higher pressure over the Caspian Sea region is inferred.

OriginalsprogEngelsk
Sider (fra-til)399-405
Antal sider7
TidsskriftQuaternary Research
Vol/bind75
Udgave nummer3
DOI
StatusUdgivet - maj 2011
Udgivet eksterntJa

Programområde

  • Programområde 5: Natur og klima

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