Aerosol optical depth, AOD[lambda], is a central parameter for the description of column aerosol content and column optical properties, including the rate of atmospheric turbidity. From the 1990s, after the start of the US NASA programmes AERONET, TerraMODIS, and AquaMODIS, this parameter became available and very popular (Holben et al., 1998; Toledano et al., 2007).
Correction of aerosol optical thickness succession under strong atmospheric turbidity. In Proceedings of International Symposium "Atmospheric Radiation and Dynamics" (ISARD-2013), 24-27 June 2013, Saint-Petersburg, Saint-Petersburg State University, p.
The effect of reduced economic activity around the Great Depression also appears to have temporarily resulted in reduced atmospheric turbidity and, therefore, enhanced counts of sunny days.
Jaenicke, 1984: Experimental verification of the determination of atmospheric turbidity from sunshine recorders.
The daytime maximum columnar atmospheric turbidity
during this event was recorded by the AERONET sun photometer during the afternoon of 18 October 2011.
Importance of atmospheric turbidity
and associated uncertainties in solar radiation and luminous efficacy modelling.
C., 2001, "Estimating atmospheric turbidity
from climate data," Atmospheric Environment, vol.
For very clear atmospheric conditions (AOT500 < 0.2) the method never predicted unnatural negative values, which sometimes occurs in modelling the AOT under extremely low atmospheric turbidity
conditions (Gueymard, 1998).