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Lifetime Validation of SCIAMACHY and MIPAS aboard ENVISAT (ENVIVAL-LIFE)

Mark Weber(1), John P. Burrows(1), Andreas Engel(2), Klaus-Peter Heue(3), Hermann Oelhaf(4), Klaus Pfeilsticker(5), Ulrich Platt(6) and Fred Stroh(7)

(1) University of Bremen, PO Box 330 440, D-28334 Bremen, Germany
(2) J.W.Goethe Frankfurt, Altenhöferallee 1, D-60438 Frankfurt, Germany
(3) Max-Planck-Institut für Chemie, Joh.-Joachim-Becher-Weg 29, D-55128 Mainz, Germany
(4) Forschungszentrum Karlsruhe, Institut für Meteorologie und Klimaforschung, D-76021 Karlsruhe, Germany
(5) Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
(6) niversität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
(7) Forschungszentrum Jülich GmbH, Jakobusstr. 15, D-52425 Jülich, Germany


The ENVISAT mission with the three atmospheric chemistry instruments (SCIAMACHY, MIPAS, and GOMOS) is in very good health. An extension of the ENVISAT mission to the end of 2013 has now been proposed to the ESA Programme Board. With a projected lifetime of more than 10 years for all ENVISAT atmospheric chemistry (AC) instruments, an unique decadal time series of atmospheric trace gas observations relevant for stratospheric ozone assessments, study on ozone-climate interaction, green-house gas emissions as well as global and regional air quality will be available. An important prerequisite for using these data is the need to ensure and verify that the accuracy and precision of the instruments are maintained over such a long period. The accuracy and precision of the ENVISAT instruments can be assessed by comparisons with correlative measurements from the ground, balloon-borne, and other satellites during the lifetime of the satellite instruments. This is the main goal for the German national joint project ENVIVAL-LIFE (Lifetime Validation of SCIAMACHY and MIPAS aboard ENVISAT). Participants are University Heidelberg (IUP-UH), University Bremen (IUP-UB), University Frankfurt (IAU-UF), and Research Centres Karlsruhe (FZK) and Jülich (FZJ).

The focii of ENVIVAL-LIFE are: 1) validation of reprocessed and processed SCIAMACHY and MIPAS trace gas data from 2002 to 2013 using available correlative data from satellites, ground network, and balloon-borne measurements, 2) analysis of balloon data from new campaigns carried out in coming years, 3) analysis of ground data from the BREDOM and Heidelberg ground DOAS network for validation of SCIAMACHY and MIPAS data, 4) validation of scientific ENVISAT retrievals and comparisons to operational data products, and 5) verification of new scientific and operational data products from SCIAMACHY and MIPAS.