Aquarius: Seasonal Climatology of Sea Surface Spiciness from Satellite

Seasonal climatology data for sea surface spiciness, a measure of ocean density, derived from satellite observations. The data is produced by NASA and Argentina's CONAE from the AQUARIUS/SAC-D satellite, which uses three radiometers and a scatterometer to measure brightness temperature and ocean backscatter. This version 5.0 product is gridded at a 1-degree spatial resolution and is based on measurements from the satellite's ascending passes.

Use Cases

• Modeling ocean circulation and density-driven currents based on seasonal spiciness patterns.
• Analyzing long-term climate trends in ocean properties using seasonal climatology data.
• Calibrating or validating other ocean salinity and density models based on satellite-derived measurements.
• Studying the relationship between sea surface roughness and salinity using scatterometer correction data mentioned in the description.

Strengths

• Data originates from a collaborative NASA and Argentinian Space Agency (CONAE) satellite mission.
• Spatial resolution is specified as 1 degree for the gridded product.
• Instrument specifications are detailed, including three radiometers at 29, 38, and 46-degree incidence angles and a scatterometer with a 390km swath.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and total dataset size are unknown, which may limit suitability assessment.
• The description specifies only data from Ascending satellite passes were used, which may limit spatial or temporal completeness.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

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

Time Range

Seasonal climatology (long-term average).

Freshness

Last updated 2026-03-13 14:46:59.521943; freshness should be verified.

Geography

Global ocean coverage.