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Earth, Planets and Space
Fig. 10 | Earth, Planets and Space

Fig. 10

From: Evaluation of a method to retrieve temperature and wind velocity profiles of the Venusian nightside mesosphere from mid-infrared CO2 absorption line observed by heterodyne spectroscopy

Fig. 10

Model spectra generated from the temperature profile of the VIRAex case and the wind velocity profile of + 150 m/s at all altitudes a with small noise level (0.5 erg/s/cm2/sr/cm−1 RMS) and b with large noise level (1.5 erg/s/cm2/sr/cm−1 RMS). Upper panels show the model spectra (blue) and retrieved spectra (red). A priori spectra (black) are overlapped almost exactly with the red lines and are not seen well. Lower panels show the residuals of the retrieved spectra from the model spectra

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