Aquarius Level 3: Sea Surface Spiciness Gridded Data from NASA-CONAE Satellite

Mission-cumulative sea surface spiciness data from the Aquarius/SAC-D satellite, a NASA and Argentinian CONAE collaboration. The dataset provides gridded 1-degree spatial resolution data averaged over daily, 7-day, monthly, and seasonal scales, derived from ascending satellite passes. It is based on brightness temperature and backscatter measurements from three radiometers and a scatterometer operating at L-band frequencies.

Use Cases

• Modeling ocean density and circulation patterns based on gridded sea surface spiciness data.
• Studying seasonal and interannual variability in ocean properties using daily to seasonal averaged data.
• Calibrating and validating satellite-derived salinity algorithms based on the described radiometer and scatterometer measurements.
• Analyzing spatial patterns of ocean spice at a 1-degree resolution for climate research.

Strengths

• Data is derived from a dedicated satellite instrument with three radiometers and a scatterometer, as described.
• Provides multi-temporal averaging at daily, 7-day, monthly, and seasonal scales.
• Offers a defined spatial resolution of 1 degree and uses data from a satellite with a described 370 km cross-track swath.

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.
• The dataset is limited to Ascending satellite passes, which may not provide full diurnal coverage.

Provenance

Source

National Aeronautics and Space Administration (NASA) and Comision Nacional de Actividades Espaciales (CONAE).

Collection Method

Satellite remote sensing via the Aquarius instrument on the AQUARIUS/SAC-D satellite.

Time Range

Mission cumulative series mean.

Freshness

Last updated 2026-03-13 14:47:13.718739; freshness should be verified.

Geography

Global ocean coverage within the instrument's 370 km swath.