1 April 2005 Understanding the factors that affect surface ultraviolet radiation
Author Affiliations +
Spectral measurements of solar ultraviolet (UV) radiation have been made at several ground-based locations and for more than 10 yr at some sites. These measurements are important for two main reasons. First, the measurements combined with results of radiative transfer models contribute toward our understanding of the many complicated radiative transfer processes in the atmosphere and at the Earth's surface. These processes include absorption of radiation by atmospheric gases such as ozone and sulfur dioxide, scattering by atmospheric aerosols and clouds, and scattering from the earth's surface. Knowledge of these processes is required for operational applications such as the estimation of surface UV radiation from satellite data and the forecasting of the UV index. Also, our ability to estimate UV climatology in the past, as well as in the future, requires thorough knowledge of the UV radiative transfer processes. The second reason for making systematic ground-based measurements of UV radiation is to determine whether long-term changes are occurring as a result of ozone depletion or climate change and to identify specific causes. Examples of how long-term ground-based data records have contributed to our understanding of surface UV radiation are presented.
James B. Kerr, "Understanding the factors that affect surface ultraviolet radiation," Optical Engineering 44(4), 041002 (1 April 2005). https://doi.org/10.1117/1.1886817


Aerosol layers at altitudes of 50 to 100 km according...
Proceedings of SPIE (January 13 1999)
UV radiation in the Alps: the altitude effect
Proceedings of SPIE (January 17 2002)
Effect of aerosol on UV radiation: an overview
Proceedings of SPIE (July 01 2003)
UV aerosol optical properties at three US sites
Proceedings of SPIE (November 01 2005)
Comparison of radiation schemes for calculating UV radiation
Proceedings of SPIE (November 02 1993)
Understanding the factors that affect surface UV radiation
Proceedings of SPIE (November 04 2003)

Back to Top