A multi-proxy approach for revealing recent climatic changes in the Russian Altai

Sidorova, Olga; Saurer, Matthias; Myglan, Vladimir; Eichler, Anja; Schwikowski, Margit; Kirdyanov, Aleksander; Bryukhanova, Marina; Gerasimova, Oksana; Kalugin, Ivan; Daryin, Andrey; Siegwolf, Rolf (2011). A multi-proxy approach for revealing recent climatic changes in the Russian Altai. Climate dynamics, 38(1-2), pp. 175-188. Heidelberg: Springer 10.1007/s00382-010-0989-6

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For the first time we present a multi-proxy data set for the Russian Altai, consisting of Siberian larch tree-ring width (TRW), latewood density (MXD), δ13C and δ18O in cellulose chronologies obtained for the period 1779–2007 and cell wall thickness (CWT) for 1900–2008. All of these parameters agree well between each other in the high-frequency variability, while the low-frequency climate information shows systematic differences. The correlation analysis with temperature and precipitation data from the closest weather station and gridded data revealed that annual TRW, MXD, CWT, and δ13C data contain a strong summer temperature signal, while δ18O in cellulose represents a mixed summer and winter temperature and precipitation signal. The temperature and precipitation reconstructions from the Belukha ice core and Teletskoe lake sediments were used to investigate the correspondence of different independent proxies. Low frequency patterns in TRW and δ13C chronologies are consistent with temperature reconstructions from nearby Belukha ice core and Teletskoe lake sediments showing a pronounced warming trend in the last century. Their combination could be used for the regional temperature reconstruction. The long-term δ18O trend agrees with the precipitation reconstruction from the Teletskoe lake sediment indicating more humid conditions during the twentieth century. Therefore, these two proxies could be combined for the precipitation reconstruction.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Schwikowski, Margit

ISSN:

0930-7575

Publisher:

Springer

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:27

Last Modified:

26 Sep 2016 14:06

Publisher DOI:

10.1007/s00382-010-0989-6

Web of Science ID:

000298753200011

BORIS DOI:

10.7892/boris.9806

URI:

https://boris.unibe.ch/id/eprint/9806 (FactScience: 215593)

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