McCall Glacier record of Arctic climate change: Interpreting a northern Alaska ice core with regional water isotopes
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- 作者：E.S. Kleina ; esklein@uaa.alaska.edu" class="auth_mail" title="E-mail the corresponding author ; M. Nolanb ; J. McConnellc ; M. Siglc ; J. Cherryd ; J. Youngd ; J.M. Welkera
- 关键词：Arctic Alaska ; McCall Glacier ; Ice core ; Paleoclimate reconstruction ; Water isotopes ; North Pacific index ; Aleutian Low ; Sea ice ; Precipitation moisture source ; Paleothermometer
- 刊名：Quaternary Science Reviews
- 出版年：2016
- 出版时间：1 January 2016
- 年：2016
- 卷：131
- 期：part_PB
- 页码：274-284
- 全文大小：2112 K
文摘
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Reconstructed temperatures show a warming trend at McCall over the past ∼65 years.
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McCall isotopes exhibit a bidecadal periodicity coherent with the NPI.
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The NPI correlation is negative with δ18O, but positive with d-excess.
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McCall moisture sources switched decadally with shifts in the Aleutian Low.
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Open northern ocean water input to terrestrial Arctic precipitation is increasing.