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| 3rd ERS SYMPOSIUM Florence 97 - Abstracts and Papers | |||
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| SCIAMACHY - Mission Objectives and Instrument Concept | |||
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SCIAMACHY - Mission Objectives and Instrument Concept
| 1Institute of Remote Sensing, University of Bremen,
FB 1, PO Box 330440, D-28334 Bremen, Germany 2SAO Smithonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138, USA 3SRON Ruimetonderzoek Utrecht, Sorbonnelaan 2, NL-3584 CA Utrecht, The Netherlands burrows gome5.physik.uni-bremen.de http://www-iup.physik.uni-bremen.de |
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Abstract
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SCIAMACHY (Scanning Imaging Absorption Spectrometer for
Atmospheric CHartographY) is a spectrometer which measures
sunlight that is transmitted, reflected and scattered by the
earth atmosphere in the ultraviolet, visible and near infrared
wavelength region (240 nm - 2400 nm) with high spectral
resolution (0,2 nm - 0,5 nm). SCIAMACHY determines the
absorption, reflection and scattering characteristics of the
atmosphere by measuring the extraterrestrial solar irradiance
and the upwelling radiance coming from the earth and its
atmosphere. The ratio of extraterrestrial irradiance and the
upwelling radiance can be inverted to provide information about
the amounts and distribution of important atmospheric
constituents, which absorb or scatter light, and the spectral
reflectance (or albedo) of the earth's surface.
SCIAMACHY was conceived to improve our knowledge and
understanding of a variety of issues of importance to the
chemistry and physics of the Earth atmosphere (troposphere,
stratosphere and mesosphere) such as
* "Ozone hole" chemistry as the halogen loading of the stratosphere, resulting from anthropogenic release of CFC's and halons, approaches his maximum,
* tropospheric pollution (emission from industrial activity and biomass burning),
* troposphere - stratosphere exchange.SCIAMACHY is a national contribution to ESA's ENVISAT-1 project (to be launched in 1999), funded by the German and Dutch governments, including a Belgian contribution. A descoped version of SCIAMACHY, GOME (Global Ozone Monitoring Experiment) was selected for the ESA payload of ERS-2. GOME has been successfully making measurements since its launch aboard ERS-2 in April 1995.
Keywords: SCIAMACHY, environmental monitoring, atmospheric chemistry, hyperspectral sensor
Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry