Antarctic ice core carbon monoxide records and composite spline 1821-1995 CE (Strawson et al., 2024) ...
Carbon monoxide mixing ratio of air trapped in ice core bubbles. Datasets from three Antarctic ice cores are presented: Jurassic, Bryan Coast and Dyer Plateau. These datasets contain a quasi-annual signal thought to result from the in situ production of carbon monoxide in ice. The composite spline s...
| Main Authors: | , |
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| Format: | Dataset |
| Language: | English |
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Apollo - University of Cambridge Repository
2024
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.17863/cam.109616 https://www.repository.cam.ac.uk/handle/1810/370032 |
| Summary: | Carbon monoxide mixing ratio of air trapped in ice core bubbles. Datasets from three Antarctic ice cores are presented: Jurassic, Bryan Coast and Dyer Plateau. These datasets contain a quasi-annual signal thought to result from the in situ production of carbon monoxide in ice. The composite spline should be used as a reference for the composition of past atmosphere. Ice cores were drilled by the British Antarctic Survey in 2011/12 (Jurassic and Bryan Coast) and Dyer Plateau in 1989. Data were generated via Continuous Flow Analysis (CFA) of 3.4 x 3.4 cm stick of ice core using an Optical Feedback Cavity Enhanced Spectroscopy (OF-CEAS) optical spectrometer across three analytical campaigns between 11/2021 and 01/2023. Data are 10 second averages from an original acquisition rate of 4 Hz. Data are corrected for minor blank and solubility effects and reported on the NOAA WMOX-2014 scale. The composite spline is the average of the 5th percentile records from the three cores. Uncertainty is given as 2 sigma (units ... |
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