Articles | Volume 10, issue 7
Research article
05 Jul 2017
Research article |  | 05 Jul 2017

The arctic seasonal cycle of total column CO2 and CH4 from ground-based solar and lunar FTIR absorption spectrometry

Matthias Buschmann, Nicholas M. Deutscher, Mathias Palm, Thorsten Warneke, Christine Weinzierl, and Justus Notholt

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Cited articles

Buschmann, M., Deutscher, N. M., Palm, M., Warneke, T., Weinzierl, T., and Notholt, J.: Near-Infrared Lunar Absorption Spectroscopy for the Retrieval of Column Averaged CO2 and CH4, in: Towards an Interdisciplinary Approach in Earth System Science, edited by: Lohmann, G., Meggers, H., Unnithan, V., Wolf-Gladrow, D., Notholt, J., and Bracher, A., Springer Earth System Sciences, 85–90, Springer International Publishing,, 2015.
Buschmann, M., Deutscher, N. M., Palm, M., Warneke, T., Weinzierl, T., and Notholt, J.: Column averaged dry-air mole fractions of CO2 and CH4 at Ny-Ålesund from 2012 to 2016,, 2017.
Connor, B. J., Boesch, H., Toon, G., Sen, B., Miller, C., and Crisp, D.: Orbiting Carbon Observatory: Inverse method and prospective error analysis, J. Geophys. Res.-Atmos., 113, D05305,, 2008.
CT2015: CarbonTracker 2015 results provided by NOAA ESRL, Boulder, Colorado, USA, available at:, last access: 18 March 2016.
Fu, D., Pongetti, T. J., Blavier, J.-F. L., Crawford, T. J., Manatt, K. S., Toon, G. C., Wong, K. W., and Sander, S. P.: Near-infrared remote sensing of Los Angeles trace gas distributions from a mountaintop site, Atmos. Meas. Tech., 7, 713–729,, 2014.
Short summary
The column averaged dry-air mole fractions of CO2 and CH4 (xCO2 and xCH4) of the Total Carbon Column Observing Network (TCCON) are retrieved from solar absorption Fourier transform infrared (FTIR) spectrometry. At the Ny-Ålesund site in the high arctic, however, during the polar night no solar measurements are possible. Here, we present a new method to measure xCO2 and xCH4 using the moon as a light source in the near-infrared and present the complete seasonal cycles of xCO2 and xCH4.