Articles | Volume 21, issue 10
https://doi.org/10.5194/acp-21-8255-2021
https://doi.org/10.5194/acp-21-8255-2021
Research article
 | 
28 May 2021
Research article |  | 28 May 2021

New approach to evaluate satellite-derived XCO2 over oceans by integrating ship and aircraft observations

Astrid Müller, Hiroshi Tanimoto, Takafumi Sugita, Toshinobu Machida, Shin-ichiro Nakaoka, Prabir K. Patra, Joshua Laughner, and David Crisp

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Over oceans, high uncertainties in satellite CO2 retrievals exist due to limited reference data. We combine commercial ship and aircraft observations and, with the aid of model calculations, obtain column-averaged mixing ratios of CO2 (XCO2) data over the Pacific Ocean. This new dataset has great potential as a robust reference for XCO2 measured from space and can help to better understand changes in the carbon cycle in response to climate change using satellite observations.
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