Great Barrier Reef Surficial Facies Maps Using Entropy-Ratio Classification

Geoscience Australia Data provides entropy-ratio maps for classifying surficial facies of coral reefs. The method uses a ternary classification based on detritus, framework encrustation, and pavement, and is sensitive to reef zonation. An example application is given for the Great Barrier Reef.

Use Cases

• Map coral reef facies at variable resolutions based on the described entropy-ratio method.
• Analyze zonation patterns across reef flats based on the classification's sensitivity to different environments.
• Superimpose the ternary classification on other reef mapping systems based on the description's mention of this capability.

Strengths

• Classification is described as sensitive to all reef environments, particularly zonation across reef flats.
• Method allows mapping at any chosen resolution, as stated in the description.
• Data is provided by Geoscience Australia Data, a national geological survey.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data files are in PDF and HTML formats, which may not be readily machine-readable for analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

Entropy-ratio mapping applied to surficial reef facies.

Freshness

Last updated 2026-04-30 12:48:19.150080; freshness should be verified.

Geography

Great Barrier Reef