Sentinel-3 OLCI Daily Coastal Water Quality Parameters

Daily full-resolution (approximately 300m pixel) satellite-derived water quality data for coastal regions, including Chlorophyll-a (Chl-a), Colored Dissolved Organic Matter (CDOM), and Total Suspended Solids (TSS). The dataset is produced by CSIRO for the eReefs Phase 5 project using the FUB-CSIRO Coastal Water Processor and was last updated in April 2026.

Use Cases

• Modeling Chlorophyll-a (Chl-a) concentration to monitor algal blooms and primary productivity in coastal waters.
• Analyzing Colored Dissolved Organic Matter (CDOM) levels to track dissolved organic carbon and water mass origins.
• Estimating Total Suspended Solids (TSS) to assess sediment load, turbidity, and coastal erosion.
• Applying the in_out_OR_combined_flags for quality control and filtering of unreliable algorithm outputs.
• Using the standard Level 1 quality flags (file_version_quality_control) to pre-mask and validate geophysical data.

Strengths

• Daily temporal resolution enables tracking of short-term water quality changes.
• Full resolution data with approximately 300m pixel size provides detailed spatial analysis.
• Includes multiple quality control layers (Level 1 flags, in_out_OR_combined_flags) for data validation.

Limitations

• Specific row count, geographic bounds, and temporal range are not provided in the input.
• Data is limited to coastal regions covered by the eReefs project and the Sentinel-3 OLCI sensor.
• Primary file formats are HTML and PNG, which may not be ideal for direct quantitative analysis without conversion.

Provenance

Source

Australian Ocean Data Network, derived from European Space Agency Sentinel-3 OLCI satellite data.

Collection Method

Processed by CSIRO using the FUB-CSIRO Coastal Water Processor from Level 2 geophysical quantities, reprojected via nearest neighbor resampling.

Time Range

Daily coverage; specific start date is unknown.

Freshness

Last updated on 2026-04-04, indicating recent maintenance.

Geography

Coastal regions, likely focused on Australian waters (e.g., Great Barrier Reef) under the eReefs project.