Berlin 2005 – wissenschaftliches Programm

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EP: Extraterrestrische Physik


EP 2.14: Vortrag

Freitag, 4. März 2005, 18:15–18:30, TU BH349

Towards a Better Understanding of the Energy Balance in the Upper Mesosphere and Lower Thermosphere: Contributions from the ESA ENVISAT Mission — •Martin Kaufmann1, Martin Riese1, Sergio Gil-Lopez2, Manuel Lopez-Puertas2, Bernd Funke2, Gabriele Stiller3, Thomas von Clarmann3, Heinrich Bovensmann4, Pekka Verronen5, and Anne Smith61Forschungszentrum Juelich, ICG-I — 2Instituto de Astrofisica de Andalucia — 3Forschungszentrum Karlsruhe, IMK — 4Universitaet Bremen, IUP — 5Finnish Meteorological Institute — 6National Center for atmospheric research, ACD, Boulder, USA

The mesosphere and lower thermosphere is highly sensitive to external influences from the sun as well as from the atmosphere below. Its chemical and thermal balance can change significantly due to natural influences as well as due to human-induced changes.

The combination of three instruments on board of ESA’s ENVISAT satellite give a unique possibility to improve our understanding of this region. MIPAS is able to measure temperature, CO2, and ozone during day- and nighttime. GOMOS measures nighttime ozone, and the SCIAMACHY instrument yields temperature, daytime-ozone, atomic oxygen, and in combination with the other instruments atomic hydrogen.

In this talk we focus on ENVISAT datasets which are already existing in this altitude region. The retrieval of ozone from MIPAS/ENVISAT will be described. The quality of the dataset with respect to uncertainties in the retrieval scheme and the forward modeling are analyzed.

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