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русский
ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2011, Vol. 8, No. 3, pp. 263-268

On retrieval of nitrogen dioxide profile in Earth atmosphere from zenith scattering sunlight observations during twilight

V.A. Ivanov , A.S. Elokhov , O.V. Postylyakov 
A.M. Obukhov Institute of Atmospheric Physics, Moscow Russian Academy of Sciences, 119017, Moscow, Pyjevskiy per. 3
Since 1990 spectral observations of the zenith scattering sunlight radiation are carried out at Zvenigorod Scientific Station of IAPh RAS. The observations are performed with MDR-23 spectrometer at twilight when solar zenith angle run from 84° to 96°. The paper presents the first results of development of a new method of NO2 profile retrieval using these observations. The method has accurate mathematical approach to a priori information using, errors analysis and the estimation of measurement quality. The error of the stratosphere NO2 content retrieval is approximately 10%. The error for the atmospheric boundary layer depends on the NO2 content in the layer and is between 1 1015 and 31015 mol/cm2. A comparison of the stratospheric NO2 columns obtained by the new and the standard IAPh methods showed that data were generally good agreed.
Keywords: nitrogen dioxide, zenith scattering observations, profile, vertical distribution, stratosphere
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