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A Processor to get UV-A and UV-B Radiation Products from the ECMWF Forecast System

Morcrette, Jean-Jacques European Centre for Medium-Range Weather Forecasts

Category: Radiation

A new processor for evaluating the UV-B and UV-A radiation at the surface, based on modifications to the current shortwave radiation scheme of the ECMWF forecast system is described. Sensitivity studies of the UV surface irradiance and Erythemal Dose Rate to spectral resolution, representation and atmospheric contents of ozone and aerosols, and to surface albedo are discussed. Comparison of model UV with surface observations and the impact on UV surface flux of some recent ozone minima aure used to illustrate the potential use of this UV processor.

This poster will be displayed at the ARM Science Team Meeting.