Astrid Bracher,
Institute
of Environmental Physics, University of Bremen
bracher@uni-bremen.de
07.11.2003, 13.00 c.t.
Raum N3380
The atmospheric satellite instruments GOMOS (Global Ozone Monitoring by Occultation of Stars), MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) and SCIAMACHY (Scanning Imaging Absorption Spectrometer for Atmospheric Chartography) are embarked on the new European environmental satellite ENVISAT which has been launched on March, 1st 2002. In order to assess the accuracy of selected trace gas (ozone, NO2, water vapour, methane) retrievals from the three atmospheric ENVISAT instruments, operational and scientific products are validated by comparison with other space borne instruments (GOME, HALOE, SAGE II, POAM III). The results from this satellite validation are providing the required information to modify the level 2 data processing where trace gas products are retrieved from radiance and irradiance data measured by the satellite instruments. This helps to guarantee the high quality of the atmospheric ENVISAT data products during the entire mission of this satellite. Results of these satellite intercomparisons are presented in this talk.