Estimation of tropospheric and stratospheric NO2 from spectrometric measurements of column NO2 abundances

Aleksandr S. Elokhov; Aleksandr N. Gruzdev

doi:10.1117/12.221043

20 September 1995 Estimation of tropospheric and stratospheric NO₂ from spectrometric measurements of column NO₂ abundances

Aleksandr S. Elokhov, Aleksandr N. Gruzdev

Author Affiliations +

Proceedings Volume 2506, Air Pollution and Visibility Measurements; (1995) https://doi.org/10.1117/12.221043
Event: European Symposium on Optics for Environmental and Public Safety, 1995, Munich, Germany

Abstract

Spectrometric measurements of column NO₂ abundances with a zenith viewing spectrometer working in 435-450 nm wavelength range, and a special numerical technique are used to retrieve NO₂ vertical distribution in the stratosphere and to estimate the level of tropospheric NO₂ contaminations. We present: 1) results of systematic NO₂ measurements at Zvenigorod Scientific Station since 1990, and 2) meridional distribution of NO₂ in the Atlantic Ocean measured from a ship in November 1989. The low- tropospheric NO₂ contents at Zvenigorod during pollution episodes can considerably exceed stratospheric columnar contents. Stratospheric NO₂ decreases dramatically in 1992, after the Mt. Pinatubo eruption, just in the volcanic aerosol layer. Measurements of NO₂ in the Atlantic Ocean reveal the latitudinal structure of stratospheric NO₂; tropospheric NO₂ contents are usually negligible but reach significant values when the ship approaches continents or intensive sea roads.

Citation Download Citation

Aleksandr S. Elokhov and Aleksandr N. Gruzdev "Estimation of tropospheric and stratospheric NO₂ from spectrometric measurements of column NO₂ abundances", Proc. SPIE 2506, Air Pollution and Visibility Measurements, (20 September 1995); https://doi.org/10.1117/12.221043

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