2015
DOI: 10.5194/cp-11-217-2015
|View full text |Cite
|
Sign up to set email alerts
|

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

Abstract: Abstract. A 180.17 m ice core was drilled at Aurora Peak in the central part of the Alaska Range, Alaska, in 2008 to allow reconstruction of centennial-scale climate change in the northern North Pacific. The 10 m depth temperature in the borehole was −2.2 • C, which corresponded to the annual mean air temperature at the drilling site. In this ice core, there were many melt-refreeze layers due to high temperature and/or strong insolation during summer seasons. We analyzed stable hydrogen isotopes (δD) and chemi… Show more

Help me understand this report
View preprint versions

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

0
24
0
1

Year Published

2015
2015
2021
2021

Publication Types

Select...
6

Relationship

0
6

Authors

Journals

citations
Cited by 14 publications
(25 citation statements)
references
References 33 publications
0
24
0
1
Order By: Relevance
“…changepoint. The ice core record from Aurora Peak in the eastern Alaska Range (225 km east of Denali; Figure S1), although only spanning the twentieth century, likewise shows a doubling of snow accumulation since 1900 and an increase in sea-salt Na since the 1970s due to the strengthening ALow [Tsushima et al, 2015]. A recent SST reconstruction from Aleutian coralline algal skeletons similarly shows a shift to warming North Pacific SSTs circa 1740 C.E., and a second inflection point toward higher SSTs at circa 1840 C.E., both indicative of a strengthening ALow [Williams et al, 2017].…”
Section: Comparison To North Pacific Paleoproxy Recordsmentioning
confidence: 99%
“…changepoint. The ice core record from Aurora Peak in the eastern Alaska Range (225 km east of Denali; Figure S1), although only spanning the twentieth century, likewise shows a doubling of snow accumulation since 1900 and an increase in sea-salt Na since the 1970s due to the strengthening ALow [Tsushima et al, 2015]. A recent SST reconstruction from Aleutian coralline algal skeletons similarly shows a shift to warming North Pacific SSTs circa 1740 C.E., and a second inflection point toward higher SSTs at circa 1840 C.E., both indicative of a strengthening ALow [Williams et al, 2017].…”
Section: Comparison To North Pacific Paleoproxy Recordsmentioning
confidence: 99%
“…Stable isotope values of precipitation are widely used as climate tracers that vary spatially over oceanic and terrestrial regions [ Rozanski et al ., ]. Stable isotope data form a critical baseline for interpreting paleoclimate variations preserved in ice cores [ Osterberg et al ., ; Tsushima et al ., ; Wake et al ., ], lake sediment [ Anderson et al ., ], and permafrost ice [ Lachniet et al ., ; Meyer et al ., ], and constraining landscape evolution [ Mulch , ]. There is extremely poor understanding on δ 18 O and δ 2 H variability across Alaska and the western Yukon because of the sparse isotope observation network in this Arctic region [ IAEA/WMO , ], which are mostly concentrated in coastal locations in Alaska.…”
Section: Introductionmentioning
confidence: 99%
“…К одному из основных и наиболее ценных источников палеоклиматической ин формации относится ледяной керн . По данным его изучения уже сделаны многочисленные ре конструкции климатических изменений в по лярных и горных регионах в разных временных масштабах [7,21,29,35,36,43,44] .…”
Section: Introductionunclassified