Articles | Volume 15, issue 24
https://doi.org/10.5194/amt-15-7337-2022
https://doi.org/10.5194/amt-15-7337-2022
Research article
 | 
22 Dec 2022
Research article |  | 22 Dec 2022

Improving continuous-flow analysis of triple oxygen isotopes in ice cores: insights from replicate measurements

Lindsey Davidge, Eric J. Steig, and Andrew J. Schauer

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Short summary
We describe a continuous-flow analysis (CFA) method to measure Δ17O by laser spectroscopy, and we show that centimeter-scale information can be measured reliably in ice cores by this method. We present seasonally resolved Δ17O data from Greenland and demonstrate that the measurement precision is not reduced by the CFA process. Our results encourage the development and use of CFA methods for Δ17O, and they identify calibration strategies as a target for method improvement.