Open Access Paper
21 November 2017 IASI instrument: technical description and measured performances
Ph. Hébert, D. Blumstein, C. Buil, T. Carlier, G. Chalon, P. Astruc, A. Clauss, D. Siméoni, B. Tournier
Author Affiliations +
Proceedings Volume 10568, International Conference on Space Optics — ICSO 2004; 1056806 (2017) https://doi.org/10.1117/12.2308007
Event: International Conference on Space Optics 2004, 2004, Toulouse, France
Abstract
IASI is an infrared atmospheric sounder. It will provide meteorologist and scientific community with atmospheric spectra. The IASI system includes 3 instruments that will be mounted on the Metop satellite series, a data processing software integrated in the EPS (EUMETSAT Polar System) ground segment and a technical expertise centre implemented in CNES Toulouse.

The instrument is composed of a Fourier transform spectrometer and an associated infrared imager. The optical configuration is based on a Michelson interferometer and the interferograms are processed by an on-board digital processing subsystem, which performs the inverse Fourier transforms and the radiometric calibration. The infrared imager co-registers the IASI soundings with AVHRR imager (AVHRR is another instrument on the Metop satellite). The presentation will focus on the architectures of the instrument, the description of the implemented technologies and the measured performance of the first flight model.

CNES is leading the IASI program in association with EUMETSAT. The instrument Prime is ALCATEL SPACE.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ph. Hébert, D. Blumstein, C. Buil, T. Carlier, G. Chalon, P. Astruc, A. Clauss, D. Siméoni, and B. Tournier "IASI instrument: technical description and measured performances", Proc. SPIE 10568, International Conference on Space Optics — ICSO 2004, 1056806 (21 November 2017); https://doi.org/10.1117/12.2308007
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KEYWORDS
Calibration

Performance modeling

Temperature metrology

Interferometers

Sensors

Imaging systems

Mirrors

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