Ice-core data used for the construction of the Greenland Ice-Core Chronology 2005 and 2021 (GICC05 and GICC21)

• Main Authors: Rasmussen, Sune Olander, Dahl-Jensen, Dorthe, Fischer, Hubertus, Fuhrer, Katrin, Hansen, Steffen Bo, Hansson, Margareta, Hvidberg, Christine Schøtt, Jonsell, Ulf, Kipfstuhl, Sepp, Ruth, Urs, Schwander, Jakob, Siggaard-Andersen, Marie-Louise, Sinnl, Giulia, Steffensen, Jørgen Peder, Svensson, Anders M., Vinther, Bo
• Format: Text
• Language: English
• Published: 2023
• Subjects: Greenland; Dye 3; Dye-3; Greenland ice core; GRIP; ice core; Ice Sheet; NGRIP
• Online Access: https://doi.org/10.5194/essd-2022-361; https://essd.copernicus.org/preprints/essd-2022-361/

We here describe, document, and make available a wide range of data sets used for annual layer identification in ice cores from DYE-3, GRIP, NGRIP, NEEM, and EGRIP. The data stem from detailed measurements performed both on the main deep cores and shallow cores over more than forty years using many different setups developed by research groups in several countries, and comprise both discrete measurements from cut ice samples and continuous-flow analysis data. The data series were used for the construction of the Greenland Ice-Core Chronology 2005 (GICC05) and/or the revised GICC21. Now that the underlying data are made available, we also release the individual annual layer positions of the GICC05 time scale which are based on these data sets. We hope that the release of the data sets will stimulate further studies of the past climate taking advantage of these highly resolved data series covering a large part of the interior of the Greenland ice sheet.