By Hancock et al. | January 15, 2025
Introduction
Spatial and temporal patterns of rapid Arctic warming events during the past 21,000 years are reconstructed using a new compilation of 300 paleoclimate proxy records. This compilation was created as part of the RapidArcticWarming Project. . 211 of the records are primarily sensitive to temperature, and represent a wide range of archive types including glacier ice (n = 10), marine sediment (n = 50), and terrestrial (e.g., lake) sediment (n = 121). An additional 89 records are interpreted to be sensitive to precipitation and effective moisture, most of which are derived from lake sediment pollen records.
Data
Data access and LiPDverse visualizations are available here.
Publication
A manuscript that describes this compilation is in review at Proceedings of the National Academy of Sciences (PNAS) (Hancock et al., in review).
How to cite this compilation
Hancock, C. L., McKay, N. P., Erb, M. P., Kaufman, D. S., & Thomas, E. K. (In review). Arctic warming during the past century was comparable to the largest millennial-scale events following the Last Glacial Maximum. Proceedings of the National Academy of Sciences.
Criteria for inclusion
The complete criteria for inclusion are described in the publication, but in short: To be included in the RapidArcticWarming compilation, a dataset must meet several criteria:
- Proxy Type: Records must be sensitive to temperature or hydroclimate.
- Location: Records must be from the Arctic (north of 58°N).
- Record Duration: Records must span at least 3,000 years within the timespan between 8 and 15 ka.
- Record Resolution: There is not a strict cut for resolution, but the median spacing between measurements is approximately 200 years.
- Peer-review: Records must be from peer-reviewed publications.
Long-term archival
The RapidArcticWarming (RAW) data are archived at Zenodo and are available here.