An extended Arctic proxy temperature database for the past 2,000 years

Nicholas P. McKay, Darrell S Kaufman

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

Robust climate reconstructions of the most recent centuries and millennia are invaluable for placing modern warming in the context of natural variability. Here we present an extended and revised database (version 1.1) of proxy temperature records recently used to reconstruct Arctic temperatures for the past 2,000 years. The datasets are presented in a machine-readable format, and have been extended with the geochronologic data and consistently generated time-uncertain ensembles, which will be useful in future analyses of the influence of geochronologic uncertainty. A standardized description of the seasonality of the temperature response for each record, as reported by the original authors, is also included to motivate a more nuanced approach to integrating records with variable seasonal sensitivities. Despite the predominance of seasonal, rather than annual, temperature responders in the database, comparisons with the instrumental record of temperature suggest that, as a whole, the datasets best record annual temperature variability across the Arctic, especially in northeast Canada and Greenland, where the density of records is highest.

Original languageEnglish (US)
Article number140026
JournalScientific data
Volume1
DOIs
StatePublished - Aug 19 2014

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Arctic
reconstruction
climate
uncertainty
Canada
Temperature
Annual
Seasonality
Climate
Data base
Ensemble
Uncertainty
time

ASJC Scopus subject areas

  • Education
  • Library and Information Sciences
  • Computer Science Applications
  • Information Systems
  • Statistics, Probability and Uncertainty
  • Statistics and Probability

Cite this

An extended Arctic proxy temperature database for the past 2,000 years. / McKay, Nicholas P.; Kaufman, Darrell S.

In: Scientific data, Vol. 1, 140026, 19.08.2014.

Research output: Contribution to journalArticle

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