Venus mesosphere radiative transfer simulations on the basis of Venera-15 FTIR-experiment

A Fourier-Transform-Infrared-Spectrometer worked on board of Venera-15 in 1983. 1500 spectra of the outgoing radiation of Venus atmosphere were measured with a spectral resolution of 5 cm(-1) in e spectral range from 250 to 1600 cm(-1). On this basis a zonal averaged temperature field of northern hemisphere in the altitude range from 60 to 95 km has been retrieved. With these data the radiative transfer including multiple scattering of solar and thermal radiation was simulated. The most intensive heating is in the upper cloud layer in equatorial latitudes. The detailed investigation of radiation transfer in Venus clouds gives more understanding for the great relevance of clouds in energetic balance.