Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Potential accuracies of retrieving the vertical profiles of atmospheric parameters (satellite-based transmittance method) : 1. Ozone and nitrogen dioxide contents. / Polyakov, A. V.; Timofeev, Yu M.
в: Izvestiya - Atmospheric and Ocean Physics, Том 39, № 2, 01.03.2003, стр. 227-233.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Potential accuracies of retrieving the vertical profiles of atmospheric parameters (satellite-based transmittance method)
T2 - 1. Ozone and nitrogen dioxide contents
AU - Polyakov, A. V.
AU - Timofeev, Yu M.
PY - 2003/3/1
Y1 - 2003/3/1
N2 - Potential accuracies of retrieving the ozone and nitrogen dioxide vertical profiles from slant-path atmospheric transmittance measurements with the SAGE-III spectrometer launched aboard the Meteor-3M satellite are analyzed on the basis of closed-loop numerical experiments. All conditions of the numerical experiments, namely, the initial data set, methods of interpretation and parametrization of the spectral dependence of the aerosol extinction coefficient, are described. It is shown that the potential accuracies of retrieval of the ozone and nitrogen dioxide vertical profiles depend significantly on the description of the spectral dependence of the atmospheric aerosol extinction coefficient. The mean error of ozone retrieval at heights between 12 and 75 km ranges from 0.27 to 0.75%, depending on the parametrization type. The ultimate accuracy of nitrogen dioxide retrieval in the height range between 20 and 45 km is 0.3-4.6%. The retrieval errors are minimal when optimal parametrizations of aerosol extinction are used, namely, when the aerosol extinction coefficient variations are expanded into four or five eigenvectors of the quasi-empirical basis. The retrieval errors obtained on the basis of the optimal parametrizations are lower than those obtained on the basis of the parametrization proposed by Lumpe et al. by a factor ranging from two to three for ozone and by a factor of about ten for nitrogen dioxide.
AB - Potential accuracies of retrieving the ozone and nitrogen dioxide vertical profiles from slant-path atmospheric transmittance measurements with the SAGE-III spectrometer launched aboard the Meteor-3M satellite are analyzed on the basis of closed-loop numerical experiments. All conditions of the numerical experiments, namely, the initial data set, methods of interpretation and parametrization of the spectral dependence of the aerosol extinction coefficient, are described. It is shown that the potential accuracies of retrieval of the ozone and nitrogen dioxide vertical profiles depend significantly on the description of the spectral dependence of the atmospheric aerosol extinction coefficient. The mean error of ozone retrieval at heights between 12 and 75 km ranges from 0.27 to 0.75%, depending on the parametrization type. The ultimate accuracy of nitrogen dioxide retrieval in the height range between 20 and 45 km is 0.3-4.6%. The retrieval errors are minimal when optimal parametrizations of aerosol extinction are used, namely, when the aerosol extinction coefficient variations are expanded into four or five eigenvectors of the quasi-empirical basis. The retrieval errors obtained on the basis of the optimal parametrizations are lower than those obtained on the basis of the parametrization proposed by Lumpe et al. by a factor ranging from two to three for ozone and by a factor of about ten for nitrogen dioxide.
UR - http://www.scopus.com/inward/record.url?scp=0038323066&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0038323066
VL - 39
SP - 227
EP - 233
JO - Izvestiya - Atmospheric and Oceanic Physics
JF - Izvestiya - Atmospheric and Oceanic Physics
SN - 0001-4338
IS - 2
ER -
ID: 36222004