The IASI data products can be downloaded from the following links:
- L2 data: https://thredds-su.ipsl.fr/thredds/catalog/catalog-iasi-l2.html
- L3 data: https://thredds-su.ipsl.fr/thredds/catalog/catalog-iasi-l3.html
The same download interface is used for all IASI products. Once on the corresponding download page, select the product you are interested in.
You can also use the example script below to download the data. The example is provided for IASI/Metop-B NH3R-ERA5 data for 2025.
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server_url=https://thredds-su.ipsl.fr/thredds/catalog/IASI/L2/NH3R-ERA5/METOP-B/2025/catalog.html
dl_path=IASI_NH3R-ERA5/ # output directory
wget -q –show-progress -P $dl_path -e robots=off -nH –cut-dirs 3 -nc -r -l6 -A “IASI_METOP*nc” -R ‘catalog*’ -I /thredds/fileServer/,/thredds/catalog/ $server_url
------For another product, replace the server_url with the URL corresponding to that product and update the dl_path to the desired output directory.