Mapping Natural Surface UV Radiation with MSG: Maps Series In Spring 2004, Comparison with Meteosat Derived Results and Reference Measurements
Abstract
The method for mapping surface UV radiation using MSG follows the general scheme previously used with METEOSAT. It basically consists in using a standard radiative transfer code (UVspec) and in exploiting various sources of information to assign values to the parameters influencing the surface UV radiation. GOME, TOMS or TOVS data are used for the total column ozone. The tropospheric aerosols are taken into account by using observations at ground meteorological stations and the surface altitude by means of a digital elevation model. MSG is used to derive cloud optical thickness and to detect the presence of snow. The MSG NIR band is used as an additional discriminator for this latter purpose. A series of MSG-derived European UV daily dose maps in March 2004 are compared with the METEOSAT- derived ones. The results are also compared with high quality measurements performed at the UV monitoring station in Ispra.
- Publication:
-
Second MSG RAO Workshop
- Pub Date:
- November 2004
- Bibcode:
- 2004ESASP.582...51V