Appl. Sci. 2019, 9, 5453 10 of 20 Figure 7 shows the relationship between the extinction coefficient and rainfall rates using prediction modelsApapsl. pScri.o2v02id0,e1d0, xbFyOtRhPeEEInRtReErVnIaEtWional Telecommunication Union (ITU) [21] and the physi1c0alofm21odel as provided in [...