EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Estimation of the tropospheric and stratospheric CO2 content by ground-based IR technique

Yury Timofeyev, Georgy Nerobelov, Anatolii Poberovskii, and Nikolai Filippov
Yury Timofeyev et al.
  • Saint-Petersburg State University, The Faculty of Physics, Saint-Petersburg, Russian Federation (

Ground-based spectroscopic international measurement systems TCCON and NDACC are important for regular obtaining the data on atmospheric gas composition. A great part of such data is derived as the total content of the gases and as an averaged mixing ratio for the dry atmosphere as, for example, XCO2. On the other hand, the measurements of solar IR radiation spectra with high spectral resolution carry within them some amount of information on the vertical structure of the content of some gases. The method of estimation of CO2 content in the troposphere and stratosphere was described in a study [Timofeyev Yu.M., Nerobelov G.M., Poberovskii A.V., Filippov N.N. Evaluation of CO2 content in troposphere and stratosphere by ground-based IR method.  “Izvestiya, Atmospheric and Oceanic Physics”. 2021, Nо.2]. In our work we present the analysis of the inaccuracies of the suggested approach using different spectral windows. Also, we demonstrate the comparison between CO2 tropospheric and stratospheric content obtained by the suggested approach using ground-based measurements of IR spectra with high resolution in Peterhof (2009-2019), by Copernicus Atmosphere Monitoring Service (CAMS) and by satellite measurements of XCO2 in the troposphere and stratosphere using ACE instrument.

How to cite: Timofeyev, Y., Nerobelov, G., Poberovskii, A., and Filippov, N.: Estimation of the tropospheric and stratospheric CO2 content by ground-based IR technique, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-1477,, 2021.


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