Significance of uncertain phasing between the onsets of stadial–interstadial transitions in different Greenland ice core proxies

Riechers, Keno; Boers, Niklas

doi:https://doi.org/10.5194/cp-17-1751-2021

Articles | Volume 17, issue 4

https://doi.org/10.5194/cp-17-1751-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/cp-17-1751-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 4

Research article

|

26 Aug 2021

Research article |

| 26 Aug 2021

Significance of uncertain phasing between the onsets of stadial–interstadial transitions in different Greenland ice core proxies

Keno Riechers and Niklas Boers

Supplement

https://doi.org/10.5194/cp-17-1751-2021-supplement

Data sets

High resolution aerosol, layer thickness and δ¹⁸O data around Greenland warming events (10-60ka) from NGRIP and NEEM ice cores Tobias Erhardt, Emilie Capron, Sune Olander Rasmussen, Simon Schüpbach, Matthias Bigler, Florian Adolphi, and Hubertus Fischer https://doi.org/10.1594/PANGAEA.896743

Model code and software

terhardt/DO-progression: First official release (v1.0) Tobias Erhardt https://doi.org/10.5281/zenodo.2645176

kriechers/testing_uncertain_DO_time_lags: testing_uncertain_DO_time_lags_publication (v1.0) Keno Riechers https://doi.org/10.5281/zenodo.5217533

Short summary

Greenland ice core data show that the last glacial cycle was punctuated by a series of abrupt climate shifts comprising significant warming over Greenland, retreat of North Atlantic sea ice, and atmospheric reorganization. Statistical analysis of multi-proxy records reveals no systematic lead or lag between the transitions of proxies that represent different climatic subsystems, and hence no evidence for a potential trigger of these so-called Dansgaard–Oeschger events can be found.