ISGM-SGC: Seabed Geomorphology Classification Tool

The International Seabed Geomorphology Mapping Working Group's Seabed Geomorphology Classifier (ISGM-SGC) is an Esri ArcGIS Pro Python tool for standardizing seabed feature classification. It assigns five levels of geomorphic attributes and 16 additional descriptive attributes to mapped seabed shapes. The tool was developed by geoscience agencies from the UK, Norway, Ireland, and Australia to support consistent seabed mapping workflows.

Use Cases

• Standardizing seabed feature nomenclature based on the Part 2 geomorphic classification framework.
• Attributing mapped seabed features with five levels of geomorphology classification.
• Integrating classification workflows with complementary seabed morphology mapping tools.
• Providing baseline geomorphic information for marine spatial planning and resource management.

Strengths

• Tool implements a standardized, two-part seabed geomorphology mapping approach developed by an international working group.
• Classification system includes five hierarchical levels and 16 additional descriptive attributes.
• Includes tutorials, a user guide, sampled data, and step-by-step examples for application.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data format requirements are described in accompanying documentation but not specified in the input.

Provenance

Source

International Seabed Geomorphology Mapping Working Group (ISGM), involving geoscience agencies from the UK, Norway, Ireland, and Australia.

Collection Method

Developed as an Esri ArcGIS Pro Python tool using Python 3+.

Freshness

Last updated 2026-04-16 15:20:08.805047; freshness should be verified.