Relationship between scintillation and rain attenuation at 19.77 GHz

This paper reports a statistical relationship between 1‐s averaged rain attenuation (A, in decibels) and standard deviation (σ, in decibels) of simultaneous tropospheric scintillation in 1‐s intervals, derived from high‐resolution (50 samples/s) experimental 19.77 GHz attenuation time series recorded at Spino d'Adda (45.4°N) in a 30.6° slant path to satellite Olympus during an observation time of approximately 1 year. During rain the relationship between scintillation and rain attenuation, suitably separated, can be fit by the power law σ = 0.0391A5/12 formula derivable from a turbulent‐thin layer model.