SCIAMACHY on-ground/in-flight calibration, performance verification, and monitoring concepts

Johannes Frerick; Heinrich Bovensmann; S. Noel; John P. Burrows; Marcel R. Dobber

doi:10.1117/12.283807

18 September 1997 SCIAMACHY on-ground/in-flight calibration, performance verification, and monitoring concepts

Johannes Frerick, Heinrich Bovensmann, S. Noel, John P. Burrows, Marcel R. Dobber

Proceedings Volume 3117, Earth Observing Systems II; (1997) https://doi.org/10.1117/12.283807
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

The scanning imaging absorption spectrometer for atmospheric chartography (SCIAMACHY), to be launched on the European polar platform ENVISAT at the end of 1999, will measure sun- and moonlight which is either transmitted, reflected or scattered by the Earth atmosphere. The double spectrometer is designed for the ultraviolet, visible and near IR wavelength region, covering that range with a resolution of 0.24 nm to 1.5 nm. It was conceived to improve our knowledge and understanding of a variety of issues of importance to chemistry and physics of the Earth atmosphere. Scientific objectives are to study ozone hole chemistry, troposphere- stratosphere exchange and tropospheric pollution. This will be achieved by a combined limb, nadir and occultation observation strategy. The SCIAMACHY instrument and operational concept is finalized approaching now the on- ground calibration phase. The planned wavelength and radiometric calibration measurements, including a detailed characterization of the instrument polarization behavior, will be fundamental for the required high data accuracy. Additionally the in-flight calibration and monitoring concept will allow a proper correction of instrument ageing effects. This study describes pre-flight and in-flight calibration the approaches to be employed to maintain a high radiometric and spectral accuracy of the SCIAMACHY measurements throughout its life are reported.

Citation Download Citation

Johannes Frerick, Heinrich Bovensmann, S. Noel, John P. Burrows, and Marcel R. Dobber "SCIAMACHY on-ground/in-flight calibration, performance verification, and monitoring concepts", Proc. SPIE 3117, Earth Observing Systems II, (18 September 1997); https://doi.org/10.1117/12.283807

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