A first chronology for the East Greenland Ice-core Project (EGRIP) over the Holocene and last glacial termination

Mojtabavi, Seyedhamidreza; Wilhelms, Frank; Cook, Eliza; Davies, Siwan M.; Sinnl, Giulia; Skov Jensen, Mathias; Dahl-Jensen, Dorthe; Svensson, Anders; Vinther, Bo M.; Kipfstuhl, Sepp; Jones, Gwydion; Karlsson, Nanna B.; Faria, Sergio Henrique; Gkinis, Vasileios; Kjær, Helle Astrid; Erhardt, Tobias; Berben, Sarah M. P.; Nisancioglu, Kerim H.; Koldtoft, Iben; Rasmussen, Sune Olander

doi:https://doi.org/10.5194/cp-16-2359-2020

Articles | Volume 16, issue 6

Clim. Past, 16, 2359–2380, 2020

https://doi.org/10.5194/cp-16-2359-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Clim. Past, 16, 2359–2380, 2020

https://doi.org/10.5194/cp-16-2359-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 6

Research article 27 Nov 2020

Research article | 27 Nov 2020

A first chronology for the East Greenland Ice-core Project (EGRIP) over the Holocene and last glacial termination

Seyedhamidreza Mojtabavi et al.

Data sets

Chronology for the East GReenland Ice-core Project (EGRIP) S. Mojtabavi, F. Wilhelms, E. Cook, S. Davies, G. Sinnl, M. Skov Jensen, D. Dahl-Jensen, A. Svensson, B. Vinther, S., Kipfstuhl, G. Jones, N. B. Karlsson, S. H. Faria, V. Gkinis, H. Kjær, T. Erhardt, S. M. P. Berben, K. H. Nisancioglu, I. Koldtoft, and S. O. Rasmussen https://doi.org/10.1594/PANGAEA.922139

Specific conductivity measured with the dielectric profiling (DEP) technique on the EGRIP ice core, 13.77-1383.84 m depth S. Mojtabavi, F. Wilhelms, E. Cook, S. Davies, G. Sinnl, M. Skov Jensen, D. Dahl-Jensen, A. Svensson, B. Vinther, S., Kipfstuhl, G. Jones, N. B. Karlsson, S. H. Faria, V. Gkinis, H. Kjær, T. Erhardt, S. M. P. Berben, K. H. Nisancioglu, I. Koldtoft, and S. O. Rasmussen https://doi.org/10.1594/PANGAEA.919313

Permittivity measured with the dielectric profiling (DEP) technique on the EGRIP ice core, 13.77-1383.84 m depth) S. Mojtabavi, F. Wilhelms, E. Cook, S. Davies, G. Sinnl, M. Skov Jensen, D. Dahl-Jensen, A. Svensson, B. Vinther, S., Kipfstuhl, G. Jones, N. B. Karlsson, S. H. Faria, V. Gkinis, H. Kjær, T. Erhardt, S. M. P. Berben, K. H. Nisancioglu, I. Koldtoft, and S. O. Rasmussen https://doi.org/10.1594/PANGAEA.922138

Acidity measured with the Electrical Conductivity Method (ECM) on the EGRIP ice core (down to 1383.84 m depth), converted to hydrogen ion concentration S. Mojtabavi, F. Wilhelms, E. Cook, S. Davies, G. Sinnl, M. Skov Jensen, D. Dahl-Jensen, A. Svensson, B. Vinther, S., Kipfstuhl, G. Jones, N. B. Karlsson, S. H. Faria, V. Gkinis, H. Kjær, T. Erhardt, S. M. P. Berben, K. H. Nisancioglu, I. Koldtoft, and S. O. Rasmussen https://doi.org/10.1594/PANGAEA.922199

Specific conductivity measured with the dielectric profiling (DEP) technique on the NEEM ice core (down to 1493.295 m depth) S. Mojtabavi, F. Wilhelms, E. Cook, S. Davies, G. Sinnl, M. Skov Jensen, D. Dahl-Jensen, A. Svensson, B. Vinther, S., Kipfstuhl, G. Jones, N. B. Karlsson, S. H. Faria, V. Gkinis, H. Kjær, T. Erhardt, S. M. P. Berben, K. H. Nisancioglu, I. Koldtoft, and S. O. Rasmussen https://doi.org/10.1594/PANGAEA.922193

Permittivity measured with the dielectric profiling (DEP) technique on the NEEM ice core (down to 1493.295 m depth) S. Mojtabavi, F. Wilhelms, E. Cook, S. Davies, G. Sinnl, M. Skov Jensen, D. Dahl-Jensen, A. Svensson, B. Vinther, S., Kipfstuhl, G. Jones, N. B. Karlsson, S. H. Faria, V. Gkinis, H. Kjær, T. Erhardt, S. M. P. Berben, K. H. Nisancioglu, I. Koldtoft, and S. O. Rasmussen https://doi.org/10.1594/PANGAEA.922195

Specific conductivity measured with the dielectric profiling (DEP) technique on the NGRIP1 ice core (down to 1371.69 m depth) S. Mojtabavi, F. Wilhelms, E. Cook, S. Davies, G. Sinnl, M. Skov Jensen, D. Dahl-Jensen, A. Svensson, B. Vinther, S., Kipfstuhl, G. Jones, N. B. Karlsson, S. H. Faria, V. Gkinis, H. Kjær, T. Erhardt, S. M. P. Berben, K. H. Nisancioglu, I. Koldtoft, and S. O. Rasmussen https://doi.org/10.1594/PANGAEA.922191

Permittivity measured with the dielectric profiling (DEP) technique on the NGRIP1 ice core (down to 1371.69 m depth) S. Mojtabavi, F. Wilhelms, E. Cook, S. Davies, G. Sinnl, M. Skov Jensen, D. Dahl-Jensen, A. Svensson, B. Vinther, S., Kipfstuhl, G. Jones, N. B. Karlsson, S. H. Faria, V. Gkinis, H. Kjær, T. Erhardt, S. M. P. Berben, K. H. Nisancioglu, I. Koldtoft, and S. O. Rasmussen https://doi.org/10.1594/PANGAEA.922192

Short summary

We present a first chronology for the East Greenland Ice-core Project (EGRIP) over the Holocene and last glacial termination. After field measurements and processing of the ice-core data, the GICC05 timescale is transferred from the NGRIP core to the EGRIP core by means of matching volcanic events and common patterns (381 match points) in the ECM and DEP records. The new timescale is named GICC05-EGRIP-1 and extends back to around 15 kyr b2k.