TY - JOUR
T1 - Measured UV spectra compared with discrete ordinate method simulations
AU - Jun Zeng, Zeng
AU - McKenzie, R.
AU - Stamnes, K.
AU - Wineland, M.
AU - Rosen, J.
PY - 1994
Y1 - 1994
N2 - A comprehensive radiative transfer model is used to calculate surface spectral ultraviolet irradiance under cloud-free conditions. The results are compared with measurements made at Lauder, New Zealand before and after the eruption of Mount Pinatubo and including a snow-covered surface. For cases in which the atmospheric optical properties are best known the agreement is better than 8% in the UV-B range, and for wavelengths 320 and 450 nm the deviation is smaller. The comparison suggests that the ultraviolet radiation exposure can be computed with confidence for clear sky conditions if the appropriate atmospheric molecular density profiles, ozonesonde data, surface albedo, and aerosol optical properties are available. The UV radiation model is used to investigate the impact of changes in solar zenith angle, ozone abundance, surface albedo, and aerosol loading on UV radiation reaching the surface of the Earth. The ratios of diffuse to direct irradiance depend critically on solar zenith angle, surface albedo, and aerosol extinction. -from Authors
AB - A comprehensive radiative transfer model is used to calculate surface spectral ultraviolet irradiance under cloud-free conditions. The results are compared with measurements made at Lauder, New Zealand before and after the eruption of Mount Pinatubo and including a snow-covered surface. For cases in which the atmospheric optical properties are best known the agreement is better than 8% in the UV-B range, and for wavelengths 320 and 450 nm the deviation is smaller. The comparison suggests that the ultraviolet radiation exposure can be computed with confidence for clear sky conditions if the appropriate atmospheric molecular density profiles, ozonesonde data, surface albedo, and aerosol optical properties are available. The UV radiation model is used to investigate the impact of changes in solar zenith angle, ozone abundance, surface albedo, and aerosol loading on UV radiation reaching the surface of the Earth. The ratios of diffuse to direct irradiance depend critically on solar zenith angle, surface albedo, and aerosol extinction. -from Authors
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M3 - Article
AN - SCOPUS:0028601728
SN - 0148-0227
VL - 99
SP - 23,019-23,030
JO - Journal of Geophysical Research
JF - Journal of Geophysical Research
IS - D11
ER -