A global analysis of pollen-based reconstructions of land climate changes during Dansgaard–Oeschger events

Liu, Mengmeng; Prentice, Iain Colin; Harrison, Sandy P.

doi:10.5194/cp-22-205-2026

Articles | Volume 22, issue 2

https://doi.org/10.5194/cp-22-205-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/cp-22-205-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 2

Research article

|

02 Feb 2026

Research article |

| 02 Feb 2026

A global analysis of pollen-based reconstructions of land climate changes during Dansgaard–Oeschger events

Mengmeng Liu, Iain Colin Prentice, and Sandy P. Harrison

Supplement

https://doi.org/10.5194/cp-22-205-2026-supplement

Data sets

The SPECIAL Modern Pollen Data Set for Climate Reconstructions, version 3 (SMPDSv3) Sandy Harrison et al. https://doi.org/10.17864/1947.001473

ACER2: The Abrupt Climate Changes and Environmental Responses Database (version 2) Sandy Harrison et al. https://doi.org/10.17864/1947.001449

Model code and software

DO climate reconstruction Mengmeng Liu https://doi.org/10.5281/zenodo.18218890

Short summary

Dansgaard-Oeschger events were large and rapid climate transitions that occurred multiple times during the last glacial period. We reconstructed the global pattern during these events using fossil pollen records, and found a north-south antiphasing of temperature change, and reduced seasonality in the northern extratropics.