Sentinel-3 OLCI: Daily True-Color Ocean Imagery at 1000m Resolution

CSIRO-produced daily true-color quicklooks from the Sentinel-3 Ocean and Land Colour Instrument. The imagery is delivered in GeoTIFF format at a reduced resolution of approximately 1000 meters per pixel as part of the eReefs Phase 5 project. Data is hosted by the Australian Ocean Data Network and was last updated in June 2026.

Use Cases

• Monitor coastal water color and turbidity patterns based on daily true-color composites.
• Track large-scale oceanographic phenomena like algal blooms based on visual imagery.
• Provide visual context for higher-resolution satellite data analysis based on the 1000m-pixel quicklooks.
• Support public communication and education about marine environments based on readily interpretable true-color images.

Strengths

• Data is produced daily, offering frequent temporal coverage.
• Imagery has a defined spatial resolution of approximately 1000 meters per pixel.
• Data is produced by CSIRO, a national scientific research organization.
• Files are available in standard geospatial formats like GeoTIFF and WMS.

Limitations

• Row count and dataset size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

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

Collection Method

Processed Level 1B data from the Sentinel-3 OLCI satellite instrument.

Time Range

Daily coverage (implied by 'daily quicklooks').

Freshness

Last updated 2026-06-04 06:39:23.180016; freshness should be verified.

Geography

Likely covers Australian coastal and ocean regions relevant to the eReefs project; specific extent is not stated.