Sentinel-3 OLCI: Daily Coastal Water Reflectance

CSIRO's eReefs Phase 5 dataset provides daily, reprojected Level 2P above-water spectral remote sensing reflectance from the Sentinel-3 OLCI instrument at approximately 1000-meter resolution. Data is processed using the FUB-CSIRO Coastal Water Processor and placed onto a regular grid via nearest neighbor resampling. Multiple quality flag layers, including standard Level 1 flags and algorithm-specific out-of-range flags, are provided for user-controlled data masking.

Use Cases

• Monitoring coastal water quality trends based on spectral remote sensing reflectance.
• Assessing algorithm performance for ocean color products using the provided input and output out-of-range flags.
• Studying daily surface reflectance variability in coastal regions using the reprojected, gridded data.

Strengths

• Derived using a peer-reviewed processor detailed in a scientific publication (doi:10.1016/j.rse.2021.112848).
• Includes multiple, documented quality control flag layers (Level 1 and in_out_OR_combined_flags) for flexible data filtering.
• Data is reprojected onto a regular grid, facilitating spatial analysis.

Limitations

• Critical metadata such as row count, file size, license, and specific column names are not provided on the listed platforms.
• The dataset's spatial coverage is implied to be Australia but is not explicitly stated in the provided metadata.
• The pixel size is 'approximately' 1000m, indicating potential variability in spatial resolution.

Provenance

Source

CSIRO Marlin Data Catalogue, produced under eReefs Phase 5.

Collection Method

Processed from Sentinel-3 OLCI Level 2 geophysical quantities using the FUB-CSIRO Coastal Water Processor.

Freshness

Last updated 2026-05-02 according to the most recent platform entry.

Geography

Likely focuses on Australian coastal waters, given the eReefs project context.