Frequency scaling of attenuation between 12 and 100 GHz

The estimation of attenuation at a frequency from measurements taken at a different one is a problem that find applications in different scenarios. In this paper, some results are presented with regard to this topic, with the use of physical models to calculate gas and cloud attenuation at different frequencies. The work carried out makes use of radiosounding data from 60 sites all over the world, taking into account, in most cases, five years of data. Polynomial estimations are calculated for the different frequency pairs and with different geographic extent: Local data, valid for the same site, global data, valid for all the sites, and climatic zone data, that could by used for different sites in the same zone.