Surficial Reef Facies Maps for the Great Barrier Reef Using Entropy-Ratio Classification

Entropy-ratio maps classify the surface composition of coral reefs. The method uses a ternary classification based on detritus, framework encrustation, and pavement, which is sensitive to reef zonation. The dataset, provided by Geoscience Australia Data, includes an example application for the Great Barrier Reef.

Use Cases

• Mapping reef flat zonation based on the described sensitivity of the classification to all reef environments.
• Superimposing the ternary classification on other reef mapping systems as mentioned in the description.
• Analyzing the mixing degree of detritus, framework encrustation, and pavement end-members across a reef surface.

Strengths

• Classification is described as sensitive to all reef environments, particularly zonation across reef flats.
• Method enables 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 directly machine-readable for analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

Application of entropy-ratio mapping to remote sensing or survey data, likely.

Freshness

Last updated 2026-04-20 03:28:24.284515; freshness should be verified.

Geography

Great Barrier Reef