Sentinel-6A MF: Low-Resolution Ocean Surface Topography

Sentinel-6A MF Jason-CS L2 P4 Altimeter Low Resolution (LR) NTC Reduced Ocean Surface Topography (Unvalidated) F08 provides non-time-critical measurements of sea surface height anomaly, significant wave height, and wind speed. The dataset is analogous to the Jason-3 GDR product and is produced by the National Aeronautics and Space Administration. Its primary purpose is to support long-term climate and oceanographic studies with a known 60-day latency.

Use Cases

• Monitoring long-term sea level rise trends based on sea surface height anomaly measurements.
• Analyzing ocean wave climate and storm impacts using significant wave height data.
• Studying ocean-atmosphere interactions and wind forcing using wind speed measurements.
• Validating and calibrating ocean circulation and wave forecast models with satellite-derived observations.

Strengths

• Data is produced by the National Aeronautics and Space Administration, a recognized authority in satellite Earth observation.
• The dataset provides three core, physically-measured oceanographic variables: sea surface height anomaly, significant wave height, and wind speed.
• Its cross-platform presence on Data.gov and NASA Earthdata signals its importance and established use in the scientific community.

Limitations

• Metadata completeness is low; specific column names, row counts, and file sizes are not provided in any source.
• The dataset has a significant 60-day latency, making it unsuitable for near-real-time monitoring or operational forecasting.
• The license is ambiguously listed as 'other-license-specified' without explicit terms provided.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Satellite altimetry measurements from the Sentinel-6A Michael Freilich (MF) / Jason-CS mission.

Freshness

Last updated on 2026-04-09 according to Data.gov entries.

Geography

Global ocean coverage.