Comparison of radiation schemes for calculating UV radiation

摘要: Increases in ultraviolet radiation (UV) caused by ozone depletion the stratosphere are expected to have physiological effects on plants and animals. Biologists require high wavelength resolution UV data adequately assess these effects. Numerical simulations of scattering absorption atmosphere provide a useful way predicting global irradiance reaching ground. Results from radiative transfer calculations presented here. Two different methods used calculate diffuse irradiances, either Discrete-Ordinate (D-O) method or Delta-Eddington (D-E) approximation. Surface irradiances obtained with D-O scheme compared those using D-E approximation for wide variety atmospheric conditions, how changes tropospheric aerosol cloud affect accuracy Stratospheric has been shown be capable increasing at The magnitude increases is depend strongly multiple scattered photons ozone. prediction this increase numerical models provides good test any approximations used. It that appears deficient surface prediction, certain circumstances.