Efficient Calculation of Cloud Attenuation for Earth–Space Applications

Lorenzo Luini, Carlo Capsoni
2014 IEEE Antennas and Wireless Propagation Letters  
This contribution presents a simple and accurate approach to calculate cloud attenuation for Earth-space communication systems operating in the 20-200 GHz frequency range. The methodology relies on the use of the mass absorption coefficient for liquid water a W , which is assumed to be independent of the site of interest. This finding, inferred from an extensive set of radiosonde observations collected in 14 locations throughout Europe, allows to devise a simple expression for a W as function
more » ... ly of frequency and, consequently, to efficiently calculate cloud attenuation. This indeed represents the main advantage of the approach, which, as a result, can take full advantage of global datasets of integrated liquid water content W made available, for example, by Earth Observation sensors.
doi:10.1109/lawp.2014.2329953 fatcat:23clke5zxrhtlnaquwsh7gq2ey