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Infrared Atmospheric Sounding Interferometer (IASI) Level 2 Outgoing Longwave Radiation

The Infrared Atmospheric Sounding Interferometer is a Cross-nadir infrared sounder flown on the European MetOp satellite series. IASI measures atmospheric emission spectra to derive temperature and humidity profiles with high vertical resolution and accuracy. IASI is a Michelson interferometer with spectral coverage between 3.6 and 15.5 micrometers. At nadir, the instrument samples data at intervals of 25 km along track and cross track with each sample having a maximum diameter of about 12 km. The IASI Level-2 Outgoing Longwave Radiation (OLR) product from MetOp-B/C is a NOAA-unique product generated from the European Organization for Meteorological Satellites (EUMETSAT) IASI level 1C data. The data are produced by the NOAA Environmental Satellite, Data, and Information Service (NESDIS) and are distributed by the Comprehensive Large Array-Data Stewardship System (CLASS) as 3 minute files in the netCDF-4 file format with attributes included.

About this Dataset

Updated: 2024-02-22
Metadata Last Updated: 2025-11-19T15:30:22.002Z
Date Created: N/A
Data Provided by:
Dataset Owner: N/A

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Title Infrared Atmospheric Sounding Interferometer (IASI) Level 2 Outgoing Longwave Radiation
Description The Infrared Atmospheric Sounding Interferometer is a Cross-nadir infrared sounder flown on the European MetOp satellite series. IASI measures atmospheric emission spectra to derive temperature and humidity profiles with high vertical resolution and accuracy. IASI is a Michelson interferometer with spectral coverage between 3.6 and 15.5 micrometers. At nadir, the instrument samples data at intervals of 25 km along track and cross track with each sample having a maximum diameter of about 12 km. The IASI Level-2 Outgoing Longwave Radiation (OLR) product from MetOp-B/C is a NOAA-unique product generated from the European Organization for Meteorological Satellites (EUMETSAT) IASI level 1C data. The data are produced by the NOAA Environmental Satellite, Data, and Information Service (NESDIS) and are distributed by the Comprehensive Large Array-Data Stewardship System (CLASS) as 3 minute files in the netCDF-4 file format with attributes included.
Modified 2025-11-19T15:30:22.002Z
Publisher Name N/A
Contact N/A
Keywords Earth Science > Atmosphere > Atmospheric Radiation > Outgoing Longwave Radiation , Geographic Region > Global , NOAA OneStop Project , IASI > Infrared Atmospheric Sounding Interferometer , METOP-A > Meteorological Operational Satellite - A , METOP-B > Meteorological Operational Satellite - B , METOP-C > Meteorological Operational Satellite - C , 10 km HTML Markup Was Removed , DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce , DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce , DOC/NOAA/NESDIS/STAR > Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce , DOC/NOAA/NESDIS/OSPO > Office of Satellite and Product Operations, NESDIS, NOAA, U.S. Department of Commerce , gov.noaa.class:IASI , climatologyMeteorologyAtmosphere
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