@article{396d023170ef4ab1b7f39f69115d1eec,
title = "The Onset and Rate of Holocene Neoglacial Cooling in the Arctic",
abstract = "The middle to late Holocene (8,200 years ago to present) in the Arctic is characterized by cooling temperatures and the regrowth and advance of glaciers. Whether this Neoglaciation was a threshold response to linear cooling, or was driven by a regional or Arctic-wide acceleration of cooling, is unknown. Here we examine the largest-yet-compiled multiproxy database of Arctic Holocene temperature change, along with model simulations, to investigate regional and Arctic-wide increases in cooling rate, the synchronicity of Neoglacial onset, and the observed and simulated rates of temperature change. We find little support for an Arctic-wide onset of Neoglacial cooling but do find intervals when regions experienced rapid increases in long-term cooling rate, both in the observations and in climate model simulations. In the model experiments, Neoglacial cooling is associated with indirectly forced millennial-scale variability in meridional heat transport superposed on the long-term decline of summer insolation.",
keywords = "Arctic, Holocene, Neoglaciation, paleoclimate",
author = "McKay, {Nicholas P.} and Kaufman, {Darrell S.} and Routson, {Cody C.} and Erb, {Michael P.} and Zander, {Paul D.}",
note = "Funding Information: We thank the authors who compiled the Arctic Holocene Transitions data set (Sundqvist et al., 2014) and those who generated and contributed the underlying data (Table S1). This study benefited from three recent regional summaries (Briner et al., 2016; Kaufman et al., 2016; Sejrup et al., 2016) that resulted from the PAGES-endorsed, Arctic Holocene Transitions project. This project was funded by the U.S. National Science Foundation (awards ARC-1107869, EAR-1347213, and AGS-1602105). We also thank two anonymous reviewers for their constructive input to the manuscript. The data used in this study, including the paleotemperature time series, modeled age ensembles, and metadata that describe the climatic interpretation of each record, all encoded as Linked PaleoData (LiPD) files, are available at the World Data Service for Paleoclimatology (https://www.ncdc.noaa.gov/paleo/ study/25610), along with the primary outcome of the time series analysis shown in Figure 2. Publisher Copyright: {\textcopyright}2018. American Geophysical Union. All Rights Reserved.",
year = "2018",
month = nov,
day = "28",
doi = "10.1029/2018GL079773",
language = "English (US)",
volume = "45",
pages = "12,487--12,496",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "American Geophysical Union",
number = "22",
}