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Proceedings Paper

IASI instrument: technical overview and measured performances
Author(s): Denis Blumstein; Gilles Chalon; Thierry Carlier; Christian Buil; Philippe Hebert; Thierry Maciaszek; G. Ponce; Thierry Phulpin; Bernard Tournier; Denis Simeoni; Patrick Astruc; Alain Clauss; Gohkahn Kayal; R. Jegou
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Paper Abstract

The Infrared Atmospheric Sounding Interferometer (IASI) is a key payload element of the METOP series of European meteorological polar-orbit satellites. IASI will provide very accurate data about the atmosphere, land and oceans for application to weather predictions and climate studies. The IASI measurement technique is based on passive IR remote sensing using an accurately calibrated Fourier Transform Spectrometer operating in the 3.7 - 15.5 μm spectral range and an associated infrared imager operating in the 10.3-12.5 μm spectral range. The optical configuration of the sounder is based on a Michelson interferometer. Interferograms are processed by the on-board digital processing subsystem which performs the inverse Fourier Transform and the radiometric calibration. The integrated infrared imager allows the co registration of the IASI sounder with AVHRR imager on-board METOP. The first model (proto-flight) of IASI has successfully completed a verification program conducted at ALCATEL SPACE premises in Cannes. This paper provides a brief overview of the IASI mission, instrument architecture and key performances results. A companion paper1 by Alcatel provides more information on instrument design and development.

Paper Details

Date Published: 4 November 2004
PDF: 12 pages
Proc. SPIE 5543, Infrared Spaceborne Remote Sensing XII, (4 November 2004); doi: 10.1117/12.560907
Show Author Affiliations
Denis Blumstein, Ctr. National d'Etudes Spatiales/CST (France)
Gilles Chalon, Ctr. National d'Etudes Spatiales/CST (France)
Thierry Carlier, Ctr. National d'Etudes Spatiales/CST (France)
Christian Buil, Ctr. National d'Etudes Spatiales/CST (France)
Philippe Hebert, Ctr. National d'Etudes Spatiales/CST (France)
Thierry Maciaszek, Ctr. National d'Etudes Spatiales/CST (France)
G. Ponce, Ctr. National d'Etudes Spatiales/CST (France)
Thierry Phulpin, Ctr. National d'Etudes Spatiales/CST (France)
Bernard Tournier, Noveltis (France)
Denis Simeoni, Alcatel Space (France)
Patrick Astruc, Alcatel Space (France)
Alain Clauss, Alcatel Space (France)
Gohkahn Kayal, EUMETSAT (Germany)
R. Jegou, European Space Agency/ESTEC (Netherlands)

Published in SPIE Proceedings Vol. 5543:
Infrared Spaceborne Remote Sensing XII
Marija Strojnik, Editor(s)

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