Hyperspectral earth observation from IASI: Five years of accomplishments

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.

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Author 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, Francois
Fourrie, Nadia
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
Pequignot, Eric
Peyridieu, Sophie
Phulpin, Thierry
Remedios, John
Schluessel, Peter
Serio, Carmine
Strow, Larrabee
Stubenrauch, Claudia
Taylor, Jonathan
Tobin, David
Wolf, Walter
Zhou, Daniel
Publisher UCAR/NCAR - Library
Publication Date 2012-03-01T00:00:00
Digital Object Identifier (DOI) Not Assigned
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Resource Version N/A
Topic Category geoscientificInformation
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Metadata Date 2023-08-18T18:46:35.098513
Metadata Record Identifier edu.ucar.opensky::articles:11938
Metadata Language eng; USA
Suggested Citation 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, Francois, Fourrie, Nadia, 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, Pequignot, Eric, Peyridieu, Sophie, Phulpin, Thierry, Remedios, John, Schluessel, Peter, Serio, Carmine, Strow, Larrabee, Stubenrauch, Claudia, Taylor, Jonathan, Tobin, David, Wolf, Walter, Zhou, Daniel. (2012). Hyperspectral earth observation from IASI: Five years of accomplishments. UCAR/NCAR - Library. http://n2t.net/ark:/85065/d7v40vw8. Accessed 24 July 2025.

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