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

Seasonal, gridded sea surface spiciness data at 1-degree spatial resolution, derived from ascending satellite passes. This version 5.0 dataset is produced by NASA and the Argentinian Space Agency (CONAE) from the AQUARIUS/SAC-D satellite, which uses radiometers and a scatterometer to measure brightness temperature and ocean backscatter. The data was last updated on March 13, 2026.

Use Cases

• Modeling ocean density and circulation patterns based on gridded spiciness data.
• Analyzing seasonal variability in sea surface properties based on ascending pass data.
• Calibrating or validating ocean salinity models based on satellite radiometer and scatterometer measurements.
• Studying large-scale oceanographic features based on the 1-degree spatial resolution grid.

Strengths

• Data is derived from a dedicated satellite instrument with three radiometers and a scatterometer, providing multiple measurement angles.
• Provides seasonal averages, which can smooth out short-term noise for climate-scale analysis.
• Gridded at a consistent 1-degree spatial resolution, facilitating global analysis and model integration.

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.
• Data is limited to ascending satellite passes, which may not capture diurnal cycles or phenomena specific to descending passes.

Provenance

Source

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

Collection Method

Satellite remote sensing via the AQUARIUS/SAC-D platform's radiometers and scatterometer.

Time Range

Seasonal averages; specific date range is not provided in the description.

Freshness

Last updated 2026-03-13 14:45:04.253265; freshness should be verified.

Geography

Global ocean coverage, with a total cross-track swath of 370 km for the instrument.