Infrared Atmospheric Sounding Interferometer Sea Surface Temperature

Operational Near real time product

Full resolution skin SST product based on Metop IASI data, in satellite projection from a resolution of 12km at nadir to 40km.

Acronym : IASI SST
Product navigator reference :


OSI SAF producer : Météo-France
Identifier : OSI-208-b
Processing level : L2P
Satellite input : METOP-B/IASI
Other input : L2P core IASI SST produced by EUMETSAT Secretariat
Frequency : 480 per day (each 3 min)
Timeliness : 4 h
Spatial coverage : Global
Spatial sampling : 12 to 40 km
Projection : Swath
File Formats : LML FTP Server (NetCDF4), EUMETCast (NetCDF4)
Characteristics & methods : IASI L2 package
Data Access
Redistribution :


Other means :


Accuracy Requirements
Target accuracy : monthly bias : 0.5°C, sdt Deviation : 0.8°C
Verification/validation method : routine comparison with drifting buoy measurements
Applications and users
Usage : Atmosphere and ocean models.
Authorised to be operational / released :
Declared operational / released since :
On EUMETCast since :
On FTP server since :
First date :
  • Updated on 20/06/2017 following L2Pcore product update : greater yield of useful retrievals (essentially of quality class 3) are now available at mid and high latitudes + two extra experimental fields : dust cloud index, "obs minus calc" (OmC) which is used to stratify the quality of the L2P SST retrievals.

    This product format is compliant with the Data Specification (GDS) version 2 from the Group for High Resolution Sea Surface Temperatures (GHRSST).

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