SMOS Auxiliary Data: ECMWF Forecasts for Satellite Processing

European Space Agency (ESA) provides ECMWF forecast data on the ISEA 4-9 DGG corresponding to SMOS satellite half-orbits. This Level 2 auxiliary product is openly available and used by operational processors for ocean salinity and soil moisture retrieval. The detailed content is described in Products Specification documents.

Use Cases

• Improving soil moisture retrieval accuracy based on ECMWF forecast parameters
• Calibrating ocean salinity measurements using auxiliary geophysical data
• Validating satellite data processing algorithms with external forecast models

Strengths

• Openly available to all users
• Used by operational processors for SMOS data
• Content is detailed in specification documents

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download
• Column-level documentation is absent; field semantics must be inferred after download

Provenance

Source

ESA

Collection Method

ECMWF forecast data mapped to the ISEA 4-9 DGG corresponding to SMOS half-orbit