Optical Thickness of the Atmosphere above the Terskol Peak

Estimates of the optical thickness of the atmosphere above the Terskol Peak are presented. The optical thickness is represented as a quantity depending on absorption coefficients determined mainly by water vapor and oxygen. The calculations are carried out under a clear sky without regard to aerosol components. Water vapor variations are considered as the main factor determining the radiation attenuation in the atmosphere in the millimeter and submillimeter spectrum ranges. The average optical thickness of the atmosphere is estimated with the use of the MPM Liebe and MOLIERE models (in the JPL and HITRAN configurations) for frequencies of 100, 150, and 225 GHz.