Aquarius L3: Seasonal Sea Surface Density Maps from Satellite

Aquarius Level 3 data provides seasonal sea surface density estimates at a 1-degree spatial resolution. The product is derived from satellite-retrieved salinity and collocated sea surface temperature data, using the TEOS-10 standard. NASA and Argentina's CONAE collaborated on the AQUARIUS/SAC-D satellite mission, which employed three radiometers and a scatterometer to make these measurements.

Use Cases

• Modeling global ocean density-driven circulation based on seasonal gridded data.
• Analyzing seasonal variability in sea surface density for climate studies.
• Validating oceanographic models using satellite-derived density estimates.
• Studying the relationship between sea surface salinity, temperature, and density.

Strengths

• Data is derived using the international TEOS-10 standard for seawater properties.
• Spatial resolution is a consistent 1 degree for gridded mapping.
• Product is based on measurements from a dedicated satellite instrument with three radiometers and a scatterometer.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and total data volume are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Satellite remote sensing via the AQUARIUS/SAC-D instrument, with data processed into gridded seasonal averages.

Time Range

Seasonal averages, specific date range not provided.

Freshness

Last updated 2026-03-13 14:54:25.591872; freshness should be verified.

Geography

Global ocean coverage.