Vol. 12, issue 09, article # 17

pdf Gribanov K. G., Zakharov V. I. Possibility to monitor the HDO/H2O content ratio in the atmosphere from space observations of the outgoing thermal radiation. // Atmospheric and oceanic optics. 1999. V. 12. No. 09. P. 825-826.
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Rather intense spectral lines of HDO molecule have been detected in the emission spectra of the atmosphere observed from space by the IMG sensor in the region 650-2000 cm-1 with the resolution of 0.1 cm-1. The analysis of signals from the isotopic species of the water molecule suggests the possibility of their use for determination of the HDO/H2O concentration ratio in the atmosphere. As an example of application of the proposed method, the results of IMG/ADEOS data processing at some observation points of the atmosphere over the ocean and land in tropical and middle latitudes under clear sky conditions are presented.