Articles | Volume 13, issue 1
Earth Syst. Sci. Data, 13, 199–211, 2021
https://doi.org/10.5194/essd-13-199-2021
Earth Syst. Sci. Data, 13, 199–211, 2021
https://doi.org/10.5194/essd-13-199-2021

Data description paper 29 Jan 2021

Data description paper | 29 Jan 2021

Shipborne measurements of XCO2, XCH4, and XCO above the Pacific Ocean and comparison to CAMS atmospheric analyses and S5P/TROPOMI

Marvin Knapp et al.

Data sets

Column-averaged dry-air mole fractions of CO2, CH4, and CO from direct sunligh tmeasurements above the Pacific during the MORE-2 campaign 2019 Marvin Knapp, Ralph Kleinschek, and André Butz https://doi.org/10.1594/PANGAEA.917240

CAMS global Near-real time analysis CAMS (Copernicus Atmosphere Monitoring Service) https://doi.org/10.24380/hhra-8c27

CAMS global GHG analysis CAMS (Copernicus Atmosphere Monitoring Service) https://doi.org/10.24380/654b-gm83

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Short summary
We developed a shipborne variant of a remote sensing spectrometer for direct sunlight measurements of column-averaged atmospheric mixing ratios of carbon dioxide, methane, and carbon monoxide. The instrument was deployed on the research vessel Sonne during a longitudinal transect over the Pacific during June 2019. The campaign yielded more than 32 000 observations which compare excellently to atmospheric composition data from a state-of-the-art model (CAMS) and satellite observations (TROPOMI).