Turbidity factor
The turbidity factor describes a combination of scattering and absorption losses in the earth's atmosphere . It describes how pure the atmosphere is and how many Rayleigh atmospheres the state of the atmosphere corresponds to. A turbidity factor of 1 corresponds to an ideal atmosphere.
background
In general, the turbidity factor depends on the number of particles in the air . Thus, it is higher in a city or in industrial areas than in areas with low environmental pollution . Further fluctuations over time are due to the fact that the water content of the air fluctuates between summer (more water vapor) and winter (less water vapor).
use
Turbidity factors are u. a. used for the assessment of the solar radiation offer, as z. B. is the case when planning a photovoltaic system .