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

Sentinel-3 OLCI Level 1B true-color quicklooks provide daily satellite imagery of ocean areas. The data is produced by CSIRO under the eReefs Phase 5 project and delivered in GeoTIFF format via the Australian Ocean Data Network. The imagery has a reduced resolution of approximately 1000 meters per pixel.

Use Cases

• Monitor large-scale ocean surface features based on daily true-color composites.
• Track sediment plumes or algal blooms based on visual color changes in the imagery.
• Provide visual context for higher-resolution remote sensing analyses based on the 1000m-pixel quicklooks.

Strengths

• Data is produced daily, offering frequent temporal coverage.
• Imagery is provided in GeoTIFF format, a standard for geospatial raster data.
• The dataset is produced by CSIRO, a reputable national science agency.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The 1000m resolution is coarse and suitable only for large-scale features.

Provenance

Source

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

Collection Method

Processed from Sentinel-3 OLCI satellite sensor data.

Time Range

Daily coverage.

Freshness

Last updated 2026-06-16 17:52:11.031122; freshness should be verified.

Geography

Likely covers ocean areas relevant to the eReefs project, potentially the Great Barrier Reef region.