On the feasibility of 13CO2 retrieval from the spectra of satellite Fourier transform spectrometers of the IASI/METOP type
K.G. Gribanov1, I.V. Zadvornykh1, V.I. Zakharov1,2
1Institute of Natural Sciences, Ural Federal University named after the first President of Russia B.N. Yeltsin, Yekaterinburg, Russia
2N.N. Krasovskii Institute of Mathematics and Mechanics of the Ural Branch of the Russian Academy of Sciences, Yekaterinburg, Russia
Keywords: атмосфера, спутниковое зондирование, IASI, изотопологи углекислого газа, atmosphere, satellite remote sensing, IASI, carbon dioxide isotopologues
Abstract
The feasibility of developing a method for retrieval of the relative content of 13СО2/12СО2 in the atmosphere as a result of solving the inverse problem of satellite sounding of the atmosphere in the thermal infrared range with IASI spectrometers has been studied. In the model experiment, synthetic spectra were used with resolution and noise level characteristic of an improved version of the IASI-NG spectrometer. In computational experiments, it was shown that the vertical profiles of the 13CO2 concentration and the relative 13CO2/12CO2 content in the atmosphere are quite satisfactorily retrieved in the troposphere for the altitude range 2-11 km, which seems promising for future applications of the method suggested.
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