Determination of content of columnar CO2 from solar transmission measurements

Konstantin M. Firsov; Mikhail Yu. Kataev; Artur A. Mitsel; Igor V. Ptashnik; Sergei M. Sakerin

doi:10.1117/12.267803

3 March 1997 Determination of content of columnar CO2 from solar transmission measurements

Konstantin M. Firsov, Mikhail Yu. Kataev, Artur A. Mitsel, Igor V. Ptashnik, Sergei M. Sakerin

Proceedings Volume 3090, 12th Symposium and School on High-Resolution Molecular Spectroscopy; (1997) https://doi.org/10.1117/12.267803
Event: 12th Symposium and School on High Resolution Molecular Spectroscopy, 1996, St. Petersburg, Russian Federation

Abstract

The retrieval technique for sensing the columnar content of CO₂ via differential solar transmission measurements in and out absorption bands is presented. The calibration procedure based on the line-by-line method is described. The k-distribution method is used for acceleration calculation. The multiwavelength Sun-photometer has six channels for measurements in and out the H₂O, CO₂, CH₄ absorption bands. The interferometer filters are used for spectral selection with resolution (Delta) (lambda) /(lambda) approximately equals 0.01 - 0.02. The wavelengths are centered at 0.87, 0.94, 1.06, 2.06, 2.18, 2.32 micrometers. Errors of the columnar content retrieval connected with the parametrization of atmospheric transmittance and uncertainties of the spectroscopy information are analyzed. The correction of signal on the basis of the measurements of aerosol optical depth is described.

Citation Download Citation

Konstantin M. Firsov, Mikhail Yu. Kataev, Artur A. Mitsel, Igor V. Ptashnik, and Sergei M. Sakerin "Determination of content of columnar CO2 from solar transmission measurements", Proc. SPIE 3090, 12th Symposium and School on High-Resolution Molecular Spectroscopy, (3 March 1997); https://doi.org/10.1117/12.267803

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