Microwave links offer the possibility to estimate (1) the latent and sensible heat fluxes between land-surface and atmosphere, as well as (2) the path-averaged rainfall intensity along the link when precipitation occurs. In the latter case, a power-law relation is assumed between the specific attenuation k affecting the electro-magnetic signal while propagating through precipitation and the rainfall intensity R, variable of interest for many hydrological applications. This work focuses on the influence of the spatial...