The visibility sensor, Sentry™ SVS1, estimates the scattering of visible light by the atmosphere from which the extinction coefficient μ (amount of attenuation of a beam due to scattering and absorption by aerosols) is calculated. From this measurement, the visibility (v), a particularly useful quantity for fog-related applications, can be readily estimated. This is done separately for daytime and nighttime conditions through the equations below. Technical specifications of the visibility sensor refer our article, https://doi.org/10.1016/j.atmosres.2019.104652.
Figure 8. Visibility sensor.
