Climate of the Past
Climate of the Past
CP
Articles | Volume 11, issue 2
Articles | Volume 11, issue 2
https://doi.org/10.5194/cp-11-217-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/cp-11-217-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 11, issue 2
Research article
 | 
10 Feb 2015
Research article |  | 10 Feb 2015

Reconstruction of recent climate change in Alaska from the Aurora Peak ice core, central Alaska

A. Tsushima, S. Matoba, T. Shiraiwa, S. Okamoto, H. Sasaki, D. J. Solie, and K. Yoshikawa

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Short summary
A 180.17-m ice core was drilled at Aurora Peak in the central part of the Alaska Range, Alaska, in 2008. The ice core age was determined by annual counts of δD and seasonal cycles of Na+. Here, we show that the chronology of the Aurora Peak ice core from 95.61 m to the top corresponds to the period from 1900 to the summer season of 2008, with a dating error of ±3 years. Our results suggest that temporal variations in δD and annual accumulation rates are strongly related to shifts in PDO Index.
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