NATIONAL OBSERVATORY OF ATHENS
PROGRAMS

Aerosol and Cloud Influence on global surface UV irradiance retrieve from satellite sensors

The main overall scientific goal of this project isto search for improvements in estimating surface UV from satellite measurements(AURA/OMI, EUMETSAT/O3MSAF) and thus to decrease the uncertainty related to theglobally available? surface UV data, whichis of importance and interest for a wide discipline of UV related studies.The above goal is planned to be achieved through the integration of measurements from differentsatellite sensors, which is likely the most feasible strategy for improving onthe uncertainties related to UV radiation data. In addition, to increase the UVdata end users, with emphasis on the Atmospheric chemistry research communityintroducing global products of photolysis frequencies of O?zone and NO2. UsingUV irradiance satellite/products, a modified method will be proposed for theretrieval of such parameters in a global scale. All, results will be validatedagainst available quality assured ground-based measurements.

Scientist in Charge: KAZADZIS, Project Type: EUROPEAN