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Observations of astro-climate with the broad band radiometer using the atmospheric dip method

Studying astroclimate of a location is essential, when one chooses the most appropriate site for radio astronomical observations or space telecommunications. The suitability of a site is determined by a number of days per year, during which astronomical observations and space communication sessions are possible. In the millimeter range, astroclimatic conditions largely depend on the absorption of such waves by the atmospheric water vapor and oxygen. This absorption depends on the elevation of the site, local and global climatic peculiarities, and weather; as the result, it may vary greatly from season to season and from day to day. The local climate is often responsible for how dry and wet air masses interchange over time, and, consequently, how the atmospheric absorption varies. The statistical data on the atmospheric absorption are the chief astroclimatic parameter for the purposes of radio astronomy and space communications in the millimeter wavelength.