Wave signature in the Venus cloud layer at 60 km observed by ground-based dayside infrared spectroscopy

We performed infrared spectroscopic measurements of the Venus’ dayside to find out atmospheric wave structures at 60 km in the cloud layer by quantifying carbon dioxide absorption. The reflection altitude of 60 km is in between that of 70 km by the ultraviolet measurements and the absorbing altitude of 50 km by the infrared thermal emission measurements.