Coastal to Deep-Marine Geomorphic Classification Framework and Glossary

The International Seabed Geomorphology Mapping Working Group developed a standardized classification framework for marine and coastal landforms. The framework includes a glossary of over 400 terms across 11 classes and a two-part mapping approach separating morphology from geomorphic interpretation. This resource, published in Earth-Science Reviews in 2026, is hosted by the Australian Ocean Data Network.

Use Cases

• Standardizing seabed geomorphic terminology across global datasets based on the hierarchical framework.
• Classifying bathymetric shapes using the 40 standardized Morphology Feature terms.
• Tailoring geomorphic interpretation to data quality using the framework's Setting/Process, BGU, BGU-T, and BGU-sT levels.
• Supporting evidence-based decision-making for ocean challenges as outlined by the UN Decade of Ocean Science.

Strengths

• Includes a glossary of over 400 standardized geomorphic terms.
• Employs a two-part methodology that separates morphological mapping from interpretive uncertainty.
• Framework is supported by open-access, machine-readable digital vocabularies and GIS tools.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

International Seabed Geomorphology Mapping Working Group (ISGM)

Collection Method

Developed using an Ocean Best Practice process incorporating science-community input.

Time Range

Framework published in 2026.

Freshness

Last updated 2026-04-28 15:27:39.596879; freshness should be verified.

Geography

Globally applicable framework.