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Hyperspectral Earth observation from IASI: Five years of accomplishments

Hilton, Fiona; Armante, Raymond; August, Thomas; Barnet, Chris; Bouchard, Aurelie; Camy-Peyret, Claude; Capelle, Virginie; Clarisse, Lieven; Clerbaux, Cathy; Coheur, Pierre-Francois; Collard, Andrew; Crevoisier, Cyril; Dufour, Gaelle; Edwards, David; Faijan Nadia Fourri�, Francois; Gambacorta, Antonia; Goldberg, Mitchell; Guidard, Vincent; Hurtmans, Daniel; Illingworth, Samuel; Jacquinet-Husson, Nicole; Kerzenmacher, Tobias; Klaes, Dieter; Lavanant, Lydie; Masiello, Guido; Matricardi, Marco; McNally, Anthony; Newman, Stuart; Pavelin, Edward; Payan, Sebastien; P�quignot, Eric; Peyridieu, Sophie; Phulpin, Thierry; Remedios, John; Schl�ssel, Peter; Serio, Carmine; Strow, Larrabee; Stubenrauch, Claudia; Taylor, Jonathan; Tobin, David; Wolf, Walter; Zhou, Daniel


Fiona Hilton

Raymond Armante

Thomas August

Chris Barnet

Aurelie Bouchard

Claude Camy-Peyret

Virginie Capelle

Lieven Clarisse

Cathy Clerbaux

Pierre-Francois Coheur

Andrew Collard

Cyril Crevoisier

Gaelle Dufour

David Edwards

Francois Faijan Nadia Fourri�

Antonia Gambacorta

Mitchell Goldberg

Vincent Guidard

Daniel Hurtmans

Nicole Jacquinet-Husson

Tobias Kerzenmacher

Dieter Klaes

Lydie Lavanant

Guido Masiello

Marco Matricardi

Anthony McNally

Stuart Newman

Edward Pavelin

Sebastien Payan

Eric P�quignot

Sophie Peyridieu

Thierry Phulpin

John Remedios

Peter Schl�ssel

Carmine Serio

Larrabee Strow

Claudia Stubenrauch

Jonathan Taylor

David Tobin

Walter Wolf

Daniel Zhou


The Infrared Atmospheric Sounding Interferometer (IASI) forms the main infrared sounding component of the European Organisation for the Exploitation of Meteorological Satellites's (EUMETSAT's) Meteorological Operation (MetOp)-A satellite (Klaes et al. 2007), which was launched in October 2006. This article presents the results of the first 4 yr of the operational IASI mission. The performance of the instrument is shown to be exceptional in terms of calibration and stability. The quality of the data has allowed the rapid use of the observations in operational numerical weather prediction (NWP) and the development of new products for atmospheric chemistry and climate studies, some of which were unexpected before launch. The assimilation of IASI observations in NWP models provides a significant forecast impact; in most cases the impact has been shown to be at least as large as for any previous instrument. In atmospheric chemistry, global distributions of gases, such as ozone and carbon monoxide, can be produced in near–real time, and short-lived species, such as ammonia or methanol, can be mapped, allowing the identification of new sources. The data have also shown the ability to track the location and chemistry of gaseous plumes and particles associated with volcanic eruptions and fires, providing valuable data for air quality monitoring and aircraft safety. IASI also contributes to the establishment of robust long-term data records of several essential climate variables. The suite of products being developed from IASI continues to expand as the data are investigated, and further impacts are expected from increased use of the data in NWP and climate studies in the coming years. The instrument has set a high standard for future operational hyperspectral infrared sounders and has demonstrated that such instruments have a vital role in the global observing system.

Journal Article Type Article
Online Publication Date Mar 1, 2012
Publication Date 2012-03
Deposit Date Feb 15, 2021
Journal Bulletin of the American Meteorological Society
Publisher American Meteorological Society
Peer Reviewed Peer Reviewed
Volume 93
Issue 3
Pages 347-370
Public URL