Preliminary processing of spectra for analysis by method of differential optical absorption spectroscopy

  • Ilya I. Bruchkouski National Ozone Monitoring Research and Education Centre, Belarusian State University, 7 Kurčatava Street, Minsk 220045, Belarus
  • Alexander G. Svetashev National Ozone Monitoring Research and Education Centre, Belarusian State University, 7 Kurčatava Street, Minsk 220045, Belarus
  • Victar S. Demin National Ozone Monitoring Research and Education Centre, Belarusian State University, 7 Kurčatava Street, Minsk 220045, Belarus
  • Siarhei K. Barodka National Ozone Monitoring Research and Education Centre, Belarusian State University, 7 Kurčatava Street, Minsk 220045, Belarus
  • Petr P. Anikin A. M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, 3 Pyžeŭski Alley, Moscow 119017, Russia
  • Alexander N. Krasouski National Ozone Monitoring Research and Education Centre, Belarusian State University, 7 Kurčatava Street, Minsk 220045, Belarus

Abstract

That work is dedicated to investigation of the possibilities for the DOAS (Differential Optical Absorption Spectroscopy) method accuracy improvement by the comparative calibration procedure using a reference instrument that has been applied to the Multi Axis Recorder of Spectra (MARS-B) instrument. The instrument has been developed at the Belarusian State University. A comparative analysis of the measurements obtained by MARS-B during the international inter-comparison campaign CINDI-2 (Second Cabauw Intercomparison of Nitrogen Dioxide Measuring Instruments, Cabauw, Netherlands, 2016) has been carried out. As a result of MARS-B measurements, the differential slant column densities of trace gases have been obtained for nitrogen dioxide, ozone, water, HONO, HCHO, and oxygen dimer. To investigate the possibilities for the DOAS method accuracy improvement, analysis of the sky radiance spectra series over the wavelength range 335–373 nm has been carried out. The analyzed spectra have been recorded simultaneously by the MARS-B instrument and by the instruments of other CINDI-2 participants. A method to reduce the error of the differential slant column densities retrieval by applying a digital low-pass filter in the preliminary processing of the spectra has been presented.

Author Biographies

Ilya I. Bruchkouski, National Ozone Monitoring Research and Education Centre, Belarusian State University, 7 Kurčatava Street, Minsk 220045, Belarus

researcher

Alexander G. Svetashev, National Ozone Monitoring Research and Education Centre, Belarusian State University, 7 Kurčatava Street, Minsk 220045, Belarus

researcher

Victar S. Demin, National Ozone Monitoring Research and Education Centre, Belarusian State University, 7 Kurčatava Street, Minsk 220045, Belarus

researcher

Siarhei K. Barodka, National Ozone Monitoring Research and Education Centre, Belarusian State University, 7 Kurčatava Street, Minsk 220045, Belarus

researcher

Petr P. Anikin, A. M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, 3 Pyžeŭski Alley, Moscow 119017, Russia

PhD (physics and mathematics); senior researcher

Alexander N. Krasouski, National Ozone Monitoring Research and Education Centre, Belarusian State University, 7 Kurčatava Street, Minsk 220045, Belarus

PhD (physics and mathematics), docent; leading researcher

References

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Published
2019-02-03
Keywords: DOAS, HONO, preliminary processing of spectra
Supporting Agencies The authors are grateful to professor Thomas Wagner (Max Planck Institute for Chemistry) for invitation to CINDI-2 and financial support, Caroline Fayt and Michel van Roozendael (Royal Belgian Institute for Space Aeronomy) for developing and distributing Q-DOAS software. Also the authors are grateful to Dr. Denis Pöhler (Institute of Environmental Physics University of Heidelberg) for his valuable suggestions about instrumentʼs optical design.`
How to Cite
Bruchkouski, I. I., Svetashev, A. G., Demin, V. S., Barodka, S. K., Anikin, P. P., & Krasouski, A. N. (2019). Preliminary processing of spectra for analysis by method of differential optical absorption spectroscopy. Journal of the Belarusian State University. Physics, 2, 86-96. Retrieved from https://journals.bsu.by/index.php/physics/article/view/490
Issue
No 2 (2018): Journal of the Belarusian State University. Physics
Section
Optics and Spectroscopy

Copyright (c) 2018 Journal of the Belarusian State University. Physics

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