Aquarius Level 3: Monthly Sea Surface Density Satellite Data

Aquarius Level 3 sea surface density data provides gridded 1-degree spatial resolution maps averaged over monthly time scales. This version 5.0 dataset is the official end-of-mission public release from the NASA and CONAE AQUARIUS/SAC-D satellite mission. Surface density estimates are derived using retrieved salinity and collocated sea surface temperature data.

Use Cases

• Modeling ocean circulation and climate patterns based on monthly sea surface density maps
• Validating and calibrating other ocean salinity or density measurement systems based on satellite-derived data
• Analyzing long-term trends in ocean density for climate change studies based on the gridded monthly product
• Studying the relationship between sea surface salinity, temperature, and density as described by the TEOS-10 framework

Strengths

• Official end-of-mission public data release (version 5.0) from a collaborative NASA and CONAE satellite mission
• Data is derived from a sophisticated instrument suite including three radiometers and a scatterometer for surface roughness corrections
• Provides a standard mapped image product at a consistent 1-degree spatial resolution

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 (NASA) and Comision Nacional de Actividades Espaciales (CONAE)

Collection Method

Satellite remote sensing from the AQUARIUS/SAC-D mission, using radiometers and a scatterometer.

Time Range

Monthly time scales (specific date range not provided in input)

Freshness

Last updated 2026-03-13 14:52:49.581093; freshness should be verified

Geography

Global ocean coverage, with a satellite swath width of approximately 370 km for the radiometers.