IEDA
Dataset Information
Snapshot record of CO2 and CH4 from the Allan Hills, Antarctica, ranging from 400,000 to 3 million years old
Data DOI:
https://doi.org/10.15784/601878
Cite as
Marks Peterson, J., Brook, E., Hishamunda, V., Kalk, M., Severinghaus, J. P., & Shackleton, S. (2025) "Snapshot record of CO2 and CH4 from the Allan Hills, Antarctica, ranging from 400,000 to 3 million years old" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601878.
Abstract
This dataset contains snapshots of carbon dioxide and methane concentrations, total air content, stable isotope measurements of carbon dioxide, as well as measurements of molecular oxygen and nitrogen and their stable isotopic signatures. Samples come from the ALHIC1901 ice core from the Allan Hills, Antarctica. Where possible, new ages have been assigned to previous measurements from the ALHIC1503 ice core. For samples containing excess CO2 from a secondary source, estimated atmospheric CO2 ranges are included.
Creator(s):
Date Created:
2025-01-06
Repository:
USAP-DC (current)
Spatial Extent(s)
West: 159.356125, East: 159.356125, South: -76.732376, North: -76.732376
Version:
1
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MD5 Checksum: 7fab4c36db8d64e36df60e0384f646f3 File Type: Microsoft Excel (OpenXML)

This dataset has been downloaded 4 times since March 2017 (based on unique date-IP combinations)