ISGM-SGC: International Seabed Geomorphology Classifier Tool and Data

The International Seabed Geomorphology Mapping Working Group's Seabed Geomorphology Classifier (ISGM-SGC) is a standardized tool for classifying seabed features. It was developed by geoscience agencies from the United Kingdom, Norway, Ireland, and Australia. The tool assigns five levels of geomorphology classification attributes and 16 additional attributes for describing geomorphic interpretations.

Use Cases

• Standardizing seabed geomorphology terminology based on the described two-part classification framework.
• Classifying mapped seabed shapes with geomorphic interpretations based on the Part 2 framework.
• Supporting consistent seabed mapping workflows by integrating with complementary morphology mapping tools.

Strengths

• Implements a standardized, five-level geomorphic classification framework developed by an international working group.
• Includes 16 additional attributes for describing the geomorphic interpretation of selected features.
• Designed to integrate with broader seabed geomorphology mapping workflows, including complementary tools for Part 1 morphology mapping.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the contributing agencies from the UK, Norway, Ireland, and Australia.

Provenance

Source

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

Collection Method

Developed as an Esri ArcGIS Pro Python tool using Python 3+ to apply a standardized classification framework.

Freshness

Last updated 2026-06-27 18:15:21.189197; freshness should be verified.

Geography

International, with development led by agencies from the United Kingdom, Norway, Ireland, and Australia.