Multiple molecular scattering and albedo action on the solar spectral irradiance in the region of the UVB (less than 320 nm) - A preliminary inventory

Details Multiple molecular scattering and albedo action on the solar spectral irradiance in the region of the UVB (less than 320 nm) - A preliminary inventory Multiple molecular scattering and albedo action on the solar spectral irradiance in the region of the UVB (less than 320 nm) - A preliminary inventory

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jatp...54..507n&link_type=abstract

Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 54, no. 5, May 1992, p. 507-511, 513-536. Research support

Physics

1

Albedo, Irradiance, Sky Radiation, Solar Radiation, Spectral Bands, Ultraviolet Spectra, Aeronomy, Biometeorology, Flux Density, Ozone Depletion, Solar Position, Zenith

Scientific paper

Solar UVB, a fundamental element in the environment, was measured with cadmium cells by Goetz (1926). Afterwards, in order to ensure uniformity in field experiments, he introduced in his atmospheric measurements a chemical sensor, the Bioclimatic Ultraviolet Dosimeter. This dosimeter, by its cylindrical form, was adapted to an instantaneous measurement of the global UVB radiation at different sites. The global radiation embraces the whole of the group of direct solar irradiances with molecular scattering (sky radiation) and ground reflection (albedo) together with its scattered spectral component. Numerical results from detailed theoretical calculations aimed at evaluating the various absolute effects associated with height, solar zenith angle, and surface albedo have been obtained for the standard atmosphere. The variations with solar zenith angles from 0 to 90 and albedos between 0 and 1 are presented for a spherical terrestrial atmosphere at selected wavelengths between 301 and 325 nm in the UVB region.

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