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
Digital object identifier (DOI) 10.15770/EUM_SAF_OSI_NRT_2016
Processing level : L2P
Satellite input : METOP-B/IASI
Other input : L2P core IASI SST produced by EUMETSAT Secretariat
Temporal sampling : 480 per day (each 3 min)
Timeliness : ? The timeliness is the time elapsing from the sensing time of the last contributing file to the product dissemination to users. It is similar to the latency. 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

backup LML FTP server (last 7 days) :

EUMETSAT Multicast
Accuracy Requirements
Target accuracy : monthly absolute mean difference: 0.5 K, standard deviation : 0.8 K
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 Temperature (GHRSST).

    23/02/2016 : this product supersedes the same product based on Metop-A input (OSI-208).

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