A 0.25-degree spatial resolution monthly mean sea surface salinity product integrates data from three satellite missions: Aquarius/SAC-D, SMAP, and SMOS. The dataset is produced by Earth and Space Research (ESR), the International Pacific Research Center (IPRC), and Remote Sensing Systems (RSS). It is a Level 4 product generated using Optimal Interpolation with a 7-day decorrelation time scale.
Use Cases
- Analyzing monthly salinity anomalies and trends using the 0.25-degree gridded data.
- Validating ocean circulation models by assimilating the optimally interpolated salinity fields.
- Studying the relationship between sea surface salinity and climate indices like ENSO across the global ocean.
- Comparing salinity retrievals from the Aquarius, SMAP, and SMOS missions within a unified product.
Strengths
- Integrates data from three major satellite missions (Aquarius, SMAP, SMOS) for continuity.
- Provides a consistent global grid at 0.25-degree spatial and monthly temporal resolution.
- Uses Optimal Interpolation methodology to create a gap-free, smoothed field from satellite swath data.
Limitations
- Specific row count, file size, and temporal coverage range are not provided in the input.
- As a Level 4 product, it represents a model-derived analysis, not direct sensor measurements.
- The 7-day decorrelation scale in the OI may smooth out some high-frequency salinity variability.
Provenance
- Source
- Earth and Space Research (ESR), International Pacific Research Center (IPRC), Remote Sensing Systems (RSS).
- Collection Method
- Optimal Interpolation of satellite data from Aquarius/SAC-D, SMAP, and SMOS missions.
- Time Range
- null
- Freshness
- null
- Geography
- Global ocean coverage.