Berlin 2005 – wissenschaftliches Programm
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EP: Extraterrestrische Physik
EP 19: Poster-Session II: Sonnenphysik, Planeten und kleine Körper
EP 19.2: Poster
Montag, 7. März 2005, 09:00–19:00, Poster TU BH
SCIAMACHY solar irradiance observation in the spectral range from 240 to 2380 nm — •Jochen Skupin1, Stefan Noël1, Manfred W. Wuttke1, Manfred Gottwald2, Heinrich Bovensmann1, Mark Weber1, and John P. Burrows1 — 1Institute of Environmental Physics (IUP), University of Bremen, Otto-Hahn-Allee 1, 28359 Bremen, Germany — 2DLR/IMF, Oberpfaffenhofen, 82234 Wessling, Germany
SCIAMACHY (SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY) is part of the payload of ESA’s Environmental Satellite ENVISAT which was launched into a sun-synchronous polar orbit on 2002-03-01. SCIAMACHY is the first spaceborne instrument covering a wavelength range from 240 to 2380 nm thus including ultraviolet, visible and near infrared spectral regions at moderate spectral resolution (0.2–1.5 nm). The main purpose of the instrument is to determine the amount and distribution of a large number of atmospheric trace constituents by measuring Earthshine radiance in limb and nadir geometry. In addition several solar observations are performed with daily or orbital frequency that offer the possibility to monitor solar variations on a dense time grid. The presented results will cover the following topics: a) Comparison of the solar irradiance measured by SCIAMACHY with other in-orbit instruments and with a Kurucz solar spectrum. b) Comparison of the SCIAMACHY solar Mg II index with GOME and NOAA data. c) Correlation of the relative change of SCIAMACHY solar irradiance with the sun spot index.