Sentinel-3 OLCI: Daily Coastal Water Quality from CSIRO

Sentinel-3 OLCI satellite data provides daily water quality measurements for coastal areas at approximately 300-meter resolution. The dataset includes chlorophyll-a (Chl-a), colored dissolved organic matter (CDOM), and total suspended solids (TSS) parameters, processed by CSIRO using the FUB-CSIRO Coastal Water Processor. Data is reprojected onto a regular grid and includes quality control flags for algorithm input and output ranges.

Use Cases

• Monitoring coastal phytoplankton blooms based on chlorophyll-a concentrations.
• Tracking dissolved organic matter transport in coastal waters based on CDOM data.
• Analyzing sediment load and turbidity patterns based on total suspended solids (TSS) measurements.
• Assessing data quality for satellite-derived water products based on the provided algorithm flags.

Strengths

• Data is derived from Sentinel-3 OLCI satellite imagery, a known operational mission.
• Includes multiple water quality parameters: chlorophyll-a, CDOM, and total suspended solids.
• Processing methodology is documented in a peer-reviewed publication (doi:10.1016/j.rse.2021.112848).
• Provides daily temporal resolution and approximately 300-meter spatial resolution.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the Australian Ocean Data Network source.

Provenance

Source

CSIRO under eReefs Phase 5, distributed via the Australian Ocean Data Network.

Collection Method

Derived from Sentinel-3 OLCI Level 2 geophysical quantities using the FUB-CSIRO Coastal Water Processor, reprojected via nearest neighbor resampling.

Time Range

Daily coverage; specific date range is not provided.

Freshness

Last updated 2026-04-10 18:39:49.114458; freshness should be verified.

Geography

Likely covers Australian coastal regions, as implied by the eReefs project and data source.