Processing of MSG - 1 SEVIRI data in the thermal infrared - algorithm development with the use of the SPARC2004 data set

The processing of HRIT wavelet compressed data, received at ITC with a standard size dish, is discussed. Specifically a 14 day full disk image time series was generated with the aim of producing a data set of the Iberian Peninsula to support the ESA/SPARC 2004 field campaign. Software was developed for the efficient extraction of a image time series, which is both geocoded and radiometrically corrected. Improvements to the SEVIRI processing toolbox are discussed. To be able to generate Land Surface Temperatures, simple atmospheric corrections are being developed, using split window techniques and fast approximations to MODTRAN. Finally, total ozone content is determined through application of the method by Drouin and Karcher, with the use of p-T atmospheric profiles from the ECMWF (MARS) archives and MODIS level 2 products.