Articles | Volume 20, issue 3
Research article
21 Mar 2024
Research article |  | 21 Mar 2024

Abrupt warming and alpine glacial retreat through the last deglaciation in Alaska interrupted by modest Northern Hemisphere cooling

Joseph P. Tulenko, Jason P. Briner, Nicolás E. Young, and Joerg M. Schaefer

Related authors

Equilibrium line altitudes of alpine glaciers in Alaska suggest Last Glacial Maximum summer temperature was 2–5 °C lower than during the pre-industrial
Caleb K. Walcott, Jason P. Briner, Joseph P. Tulenko, and Stuart M. Evans
Clim. Past, 20, 91–106,,, 2024
Short summary
Delayed and rapid deglaciation of alpine valleys in the Sawatch Range, southern Rocky Mountains, USA
Joseph P. Tulenko, William Caffee, Avriel D. Schweinsberg, Jason P. Briner, and Eric M. Leonard
Geochronology, 2, 245–255,,, 2020
Short summary

Related subject area

Subject: Teleconnections | Archive: Terrestrial Archives | Timescale: Millenial/D-O
Aridity synthesis for eight selected key regions of the global climate system during the last 60 000 years
Florian Fuhrmann, Benedikt Diensberg, Xun Gong, Gerrit Lohmann, and Frank Sirocko
Clim. Past, 16, 2221–2238,,, 2020
Short summary
NALPS19: sub-orbital-scale climate variability recorded in northern Alpine speleothems during the last glacial period
Gina E. Moseley, Christoph Spötl, Susanne Brandstätter, Tobias Erhardt, Marc Luetscher, and R. Lawrence Edwards
Clim. Past, 16, 29–50,,, 2020
Short summary
A South Atlantic island record uncovers shifts in westerlies and hydroclimate during the last glacial
Svante Björck, Jesper Sjolte, Karl Ljung, Florian Adolphi, Roger Flower, Rienk H. Smittenberg, Malin E. Kylander, Thomas F. Stocker, Sofia Holmgren, Hui Jiang, Raimund Muscheler, Yamoah K. K. Afrifa, Jayne E. Rattray, and Nathalie Van der Putten
Clim. Past, 15, 1939–1958,,, 2019
Short summary
Annual proxy data from Lago Grande di Monticchio (southern Italy) between 76 and 112 ka: new chronological constraints and insights on abrupt climatic oscillations
C. Martin-Puertas, A. Brauer, S. Wulf, F. Ott, S. Lauterbach, and P. Dulski
Clim. Past, 10, 2099–2114,,, 2014
NALPS: a precisely dated European climate record 120–60 ka
R. Boch, H. Cheng, C. Spötl, R. L. Edwards, X. Wang, and Ph. Häuselmann
Clim. Past, 7, 1247–1259,,, 2011

Cited articles

Badding, M. E., Briner, J. P., and Kaufman, D. S.: 10Be ages of late Pleistocene deglaciation and Neoglaciation in the north-central Brooks Range, Arctic Alaska, J. Quaternary Sci., 28, 95–102,, 2013. 
Balco, G.: Technical note: A prototype transparent-middle-layer data management and analysis infrastructure for cosmogenic-nuclide exposure dating, Geochronology, 2, 169–175,, 2020. 
Balco, G., Stone, J. O., Lifton, N. A., and Dunai, T. J.: A complete and easily accessible means of calculating surface exposure ages or erosion rates from 10Be and 26Al measurements, Quat. Geochronol., 3, 174–195, 2008. 
Balco, G., Briner, J., Finkel, R. C., Rayburn, J. A., Ridge, J. C., and Schaefer, J. M.: Regional beryllium-10 production rate calibration for late-glacial northeastern North America, Quat. Geochronol., 4, 93–107, 2009. 
Barclay, D. J., Wiles, G. C., and Calkin, P. E.: Holocene glacier fluctuations in Alaska, Quaternary Sci. Rev., 28, 2034–2048,, 2009. 
Short summary
We take advantage of a site in Alaska – where climate records are limited and a former alpine glacier deposited a dense sequence of moraines spanning the full deglaciation – to construct a proxy summer temperature record. Building on age constraints for moraines in the valley, we reconstruct paleo-glacier surfaces and estimate the summer temperatures (relative to the Little Ice Age) for each moraine. The record suggests that the influence of North Atlantic climate forcing extended to Alaska.