In accordance with ESA Earth Observation Data Policy, SMOS Level 1 and Level 2 Science data products are accessible on-line to all users, free of charge.
How to access SMOS data
The SMOS Online Data Access is implemented via the SMOS Online Dissemination Service.
In order to download products, either via HTTP or FTP, please login with your ESA EO-SSO account or follow the instructions for creating one beforehand.
In case of any problems, doubts or questions, please contact the ESA EO Helpdesk.
SMOS Level 1 and Level 2 Data Products
Level 1 and Level 2 Science Data Products
This includes the complete Level 1B/1C and Level 2 SM/OS datasets, i.e. all the operational and reprocessed products generated with the latest operational version of the processors by the SMOS DPGS at ESAC.
Near Real Time Data Products
This includes the Level 1 Brightness Temperature "Light" product (in BUFR format) and the Level 2 Soil Moisture product generated using a Neural Network algorithm (in netCDF format), distributed by the SMOS DPGS in NRT, i.e. respectively within 3 and 4 hours from sensing.
A detailed description of the SMOS Science data products, including read-me-first notes, Algorithm Theoretical Baseline Documents, Product Format Specifications and relevant Data Quality Reports, etc. can be found here.
Note to NRT Data users:
NRT L1 "Light" BUFR and L2 SM Neural Network products are also accessible via the following routes:
- EUMETCast Europe Service (DVB), after registration on the EUMETSAT Earth Observation Portal
- WMO Global Telecommunication System (GTS), upon authorization of the SMOS Mission Management.
SMOS Level 3 and Level 4 Data Products
For higher-level Sea Surface Salinity and Soil Moisture data products users must refer to the national French and Spanish processing entities: Centre Aval de Traitement des Données SMOS (CATDS) and SMOS CP34.
Users accessing SMOS products are intrinsically acknowledging and accepting the above.