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IASI: Atmospheric sounding Level 2 data products

Update Frequency: As Needed
Latest Data Update: 2019-07-25
Status: Ongoing
Online Status: ONLINE
Publication State: Published
Publication Date: 2012-06-01
Download Stats: last 12 months
Dataset Size: 59.13K Files | 3TB


This dataset contains level 2 data products from the Infrared Atmospheric Sounding Interferometer (IASI) instrument on board the Eumetsat EPS Metop-A satellite.

IASI was designed to measure the infrared spectrum emitted by the earth. IASI provides infrared soundings of the temperature profiles in the troposphere and lower stratosphere, moisture profiles in the troposphere, as well as some of the chemical components playing a key role in the climate monitoring, global change and atmospheric chemistry.

Citable as:  EUMETSAT (2012): IASI: Atmospheric sounding Level 2 data products. NCAS British Atmospheric Data Centre, date of citation.
Abbreviation: Not defined
Keywords: IASI, EPS, satellite, temperature, troposphere, stratosphere


Previous Info:

2020-07-30 Due to changes in the EUMETSAT licensing we are no longer able to make this product available via CEDA to all users. Data ca… Show More 2020-07-30 Due to changes in the EUMETSAT licensing we are no longer able to make this product available via CEDA to all users. Data can be obtained directly from EUMETSAT at Show Less

Previously used record identifiers:
Access rules:
Restricted data: please submit an application using the REQUEST ACCESS link for access.
Use of these data is covered by the following licence: When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data collected and prepared by EUMETSAT before a copy is obtained by NEODC direct from EUMETSAT

Data Quality:
Please see EUMETSAT for details regarding data quality for IASI data
File Format:
Data are in EUMETSAT native format

Related Documents

 Level 2 IASI product guide

Process overview

This dataset was generated by a combination of instruments deployed on platforms and computations as detailed below.

Instrument/Platform pairings

IASI Deployed on: Metop-A

Mobile platform operations

Mobile Platform Operation 1 Mobile Platform Operation for: Metop-A

Computation Element: 1

Title Computation for data from the IASI instrument deployed on Metop-A
Abstract This data set contains both the original processed data and reprocessed archive. in the following directories based on processing algorithm. The version number indicates the computation/processor used by EUMETSAT to produce the data. For further information on the version processor please see documentation on the EUMETSAT website v0-0N: Original processing years 2011-2012 v3-6N: Original processing years 2007 v4-0N: Original processing years 2007-2010 v5-0N: Original processing years 2010 v5-1N: Original processing years 2010-2011 v6-2N: Original processing years 2012-2014 v6-5N: Original processing years 2013 v7-0N: Original processing years 2013-2014 v7-1N: Original processing years 2014-2015 v7-2N: Original processing years 2015 v7-3N: Original processing years 2015-2017 v7-4N: Original processing years 2017 v8-0N: Original processing years 2017-2018 v8-0R: Reprocessed Archive years 2007-2017 v8-2N: Original processing years 2019 - being acquired on an ongoing basis
Input Description None
Output Description None
Software Reference None
Output Description


  • long_name: Air Quality
  • gcmd_url:
  • gcmd_keyword: Air Quality
  • names: Air Quality,
  • long_name: Atmospheric Chemistry
  • gcmd_url:
  • gcmd_keyword: Atmospheric Chemistry
  • names: Atmospheric Chemistry,
  • long_name: Atmospheric Radiation
  • gcmd_url:
  • gcmd_keyword: Atmospheric Radiation
  • names: Atmospheric Radiation,
  • long_name: Atmospheric Temperature
  • gcmd_url:
  • gcmd_keyword: Atmospheric Temperature
  • names: Atmospheric Temperature,
  • long_name: Atmospheric Water Vapor
  • gcmd_url:
  • gcmd_keyword: Atmospheric Water Vapor
  • names: Atmospheric Water Vapor,
  • long_name: Carbon And Hydrocarbon Compounds
  • names: Carbon And Hydrocarbon Compounds
  • long_name: Carbon Dioxide
  • gcmd_url:
  • gcmd_keyword: Carbon Dioxide
  • names: Carbon Dioxide,
  • long_name: Carbon Monoxide
  • gcmd_url:
  • gcmd_keyword: Carbon Monoxide
  • names:, Carbon Monoxide
  • long_name: Cloud Amount
  • names: Cloud Amount
  • long_name: Cloud Cover
  • names: Cloud Cover
  • long_name: Cloud Top Pressure
  • gcmd_url:
  • gcmd_keyword: Cloud Top Pressure
  • names: Cloud Top Pressure,
  • long_name: Cloud Top Temperature
  • gcmd_url:
  • gcmd_keyword: Cloud Top Temperature
  • names: Cloud Top Temperature,
  • long_name: Clouds
  • gcmd_url:
  • gcmd_keyword: EARTH SCIENCE > Atmosphere > Clouds
  • names:, EARTH SCIENCE > Atmosphere > Clouds
  • long_name: Engineering
  • names: Engineering
  • long_name: Frequency
  • names: Frequency
  • long_name: Humidity
  • gcmd_url:
  • gcmd_keyword: EARTH SCIENCE > Atmosphere > Atmospheric Water Vapor > Humidity
  • names:, EARTH SCIENCE > Atmosphere > Atmospheric Water Vapor > Humidity
  • long_name: Infrared Radiance
  • gcmd_url:
  • gcmd_keyword: Infrared Radiance
  • names:, Infrared Radiance
  • long_name: Infrared Wavelengths
  • gcmd_url:
  • gcmd_keyword: Infrared Wavelengths
  • names:, Infrared Wavelengths
  • long_name: Methane
  • gcmd_url:
  • gcmd_keyword: EARTH SCIENCE > Atmosphere > Atmospheric Chemistry/Carbon and Hydrocarbon Compounds > Methane
  • names: EARTH SCIENCE > Atmosphere > Atmospheric Chemistry/Carbon and Hydrocarbon Compounds > Methane,
  • long_name: Nitrogen Compounds
  • gcmd_url:
  • gcmd_keyword: Nitrogen Compounds
  • names: Nitrogen Compounds,
  • long_name: Nitrous Oxide
  • gcmd_url:
  • gcmd_keyword: Nitrous Oxide
  • names:, Nitrous Oxide
  • long_name: Oxygen Compounds
  • names: Oxygen Compounds
  • long_name: Ozone
  • gcmd_url:
  • gcmd_keyword: EARTH SCIENCE > Atmosphere > Atmospheric Chemistry/Oxygen Compounds > Ozone
  • names: EARTH SCIENCE > Atmosphere > Atmospheric Chemistry/Oxygen Compounds > Ozone,
  • long_name: Temperature Profiles
  • gcmd_url:
  • gcmd_keyword: Temperature Profiles
  • names:, Temperature Profiles
  • long_name: Tropospheric Ozone
  • gcmd_url:
  • gcmd_keyword: Tropospheric Ozone
  • names:, Tropospheric Ozone
  • long_name: Water Vapor Profiles
  • gcmd_url:
  • gcmd_keyword: Water Vapor Profiles
  • names:, Water Vapor Profiles

Co-ordinate Variables

Temporal Range
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Geographic Extent

Related parties
Authors (1)