East Greenland Ice-core Project (EGRIP) water-isotope data from 6 – 2657 meters at different resolutions measured using continuous flow analysis (CFA) reported on the Greenland Ice-Core Chronology 2005 and 2021 (GICC05 and GICC21).

This data set is part of a joint international effort for the East Greenland Ice-core Project (EGRIP), which has retrieved an ice core by drilling through the Northeast Greenland Ice Stream (NEGIS, 75.63°N, 35.98°W). Ice streams are responsible for draining a significant fraction of the ice from the Greenland Ice Sheet (GIS), and the project was developed to gain new and fundamental information on ice stream dynamics, thereby improving the understanding of how ice streams will contribute to future sea-level change. The drilled core also provides a new record of past climatic conditions from the northeastern part of the GIS. The project has many international partners and is managed by the Centre for Ice and Climate, Denmark with air support carried out by US ski-equipped Hercules aircraft managed through the US (United States) Office of Polar Programs, National Science Foundation.
Approximately 2657 meters of ice core have been recovered from the combined efforts of drilling operations in 2017, 2018, 2019, a break for COVID in 2020 and 2021, resuming in 2022 and 2023. Analyses followed in 2024 and 2025. Here we present records of stable isotopes of oxygen and hydrogen from 21.5 meters to 2657 m depth at a variety of depth intervals/resolutions. The data products presented here have been supported by the National Science Foundation, project: Collaborative Research: The fingerprint of abrupt temperature events throughout Greenland during the last glacial period. Award # 1804098