Satellite data retrieval

Retrieval and interpretation of IASI data

The Infrared Atmospheric Sounding Interferometer has been launched onboard METOP-A on 19 October 2006. Level 1 spectral data distribution started in March 2007.


©Eumetsat, 2010

This is an image of the IASI instrument. This instrument is installed on the METOP-A satellite shown in the figure below. The ground path of the satellite and the field-of-view of the IASI measurements are shown.

EUMETCAST transmits level 1 and level 2 IASI data that are received by a EUMETCAST reception system setup at BIRA-IASB.

We contribute to the retrieval of scientific data products for trace gases, in particular, methane and nitrous oxide, and aerosol, using line-by-line spectral modeling and retrieval tools called ASIMUT and ALVL.

Further information about IASI can be found at following websites:


©Eumetsat, 2010

Work in progress

The team is working on the validation of atmospheric chemistry products from the IASI experiment, like CO and HNO3, and the retrieval and validation of IASI CH4 data.
For the validation, it uses ground-based FTIR data from several NDACC stations.


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