Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 18, issue 24
Articles | Volume 18, issue 24
https://doi.org/10.5194/amt-18-7865-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-7865-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 24
Research article
 | Highlight paper
 | 
22 Dec 2025
Research article | Highlight paper |  | 22 Dec 2025

A system for analysis of H2 and Ne in polar ice core samples

Eric S. Saltzman, Miranda H. Miranda, John D. Patterson, and Murat Aydin

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Accurately projecting atmospheric levels and climate impacts of H2 requires knowledge of its biogeochemistry on time scales longer than the modern instrumental record. H2 trapped in polar ice is a potential archive for atmospheric H2 on millennial time scales, but ice core records of H2 do not exist because its high permeability in ice causes ice cores to rapidly exchange with the modern atmosphere. This work presents an analytical system capable of measuring H2 and neon in polar ice cores in the field immediately after drilling. This method has enabled the first ice core record of H2, and may help us better understand atmospheric H2 levels in the past.
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This study describes a system for analysis of hydrogen (H2) and neon (Ne) in polar ice core samples in the field immediately after drilling. The motivation is to reconstruct the atmospheric history of H2 to improve understanding of global H2 biogeochemistry and how it has varied over time. This knowledge will help inform models used to project future atmospheric levels of H2 and assess the climate impacts of widespread utilization of H2 as an energy source.
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