Articles | Volume 13, issue 11
https://doi.org/10.5194/amt-13-6391-2020
https://doi.org/10.5194/amt-13-6391-2020
Research article
 | 
28 Nov 2020
Research article |  | 28 Nov 2020

High-precision laser spectrometer for multiple greenhouse gas analysis in 1 mL air from ice core samples

Bernhard Bereiter, Béla Tuzson, Philipp Scheidegger, André Kupferschmid, Herbert Looser, Lars Mächler, Daniel Baggenstos, Jochen Schmitt, Hubertus Fischer, and Lukas Emmenegger

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Latest update: 19 Jun 2024
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Short summary
The record of past greenhouse gas composition from ice cores is crucial for our understanding of global climate change. Deciphering this archive requires highly accurate and spatially resolved analysis of the very small amount of gas that is trapped in the ice. This is achieved with a mid-IR laser absorption spectrometer that provides simultaneous, high-precision measurements of CH4, N2O, CO2, and δ13C(CO2) and which will be coupled to a quantitative sublimation extraction method.