Annual sea surface density data at 1-degree spatial resolution, derived from satellite observations. The dataset is produced by NASA and CONAE using retrieved salinity from the Aquarius/SAC-D satellite instrument and collocated sea surface temperature data. This version 5.0 product was last updated in June 2015.
Use Cases
- Analyzing annual sea surface density patterns from gridded 1-degree data.
- Validating ocean circulation models using satellite-derived density estimates based on TEOS-10.
- Studying the relationship between sea surface density and ancillary sea surface temperature from the Reynolds OI product.
- Investigating spatial variability in ocean density using data from the Aquarius instrument's three radiometer beams.
Strengths
- 1-degree gridded spatial resolution for global coverage.
- Data derived from three radiometers with cross-track swath of 370 km.
- Surface density estimates follow the TEOS-10 standard.
Limitations
- Data is from 2015 and may not reflect current ocean conditions.
- Product uses only descending satellite passes, not full orbital data.
- Specific sample size, row count, and data volume are unknown.
Provenance
- Source
- NASA and CONAE (Argentinian Space Agency) via the Aquarius/SAC-D satellite.
- Collection Method
- Satellite remote sensing using three radiometers at 1.413 GHz and a scatterometer at 1.26 GHz.
- Time Range
- Annual coverage (specific years not provided).
- Freshness
- null
- Geography
- Global ocean coverage.