Fig. 12From: 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 spectroscopyWind velocity profiles retrieved from the model spectra with a small noise level (0.5 erg/s/cm2/sr/cm−1 RMS) and b large noise level (1.5 erg/s/cm2/sr/cm−1 RMS) shown as blue lines in Fig. 10. Other symbols are the same as those in Fig. 7Back to article page