ISGM-SGC: Standardized Seabed Geomorphology Classification Tool and Data

Geoscience Australia, in collaboration with geological surveys from the United Kingdom, Norway, and Ireland, developed this standardized classification tool. The International Seabed Geomorphology Mapping Working Group's Seabed Geomorphology Classifier (ISGM-SGC) implements a two-part framework for classifying seabed shapes with geomorphic interpretation. It was last updated in March 2026.

Use Cases

• Standardizing seabed feature terminology across international mapping projects based on the described classification framework.
• Attributing five levels of geomorphology classification to mapped seabed features based on the tool's hierarchical drop-down system.
• Integrating geomorphic interpretation into broader seabed mapping workflows based on the mention of complementary Part 1 morphology tools.
• Creating consistent baseline seabed geomorphology maps for ocean stakeholders based on the described critical need for standardized information.

Strengths

• Implements a standardized, peer-reviewed classification framework (Dove et al., 2020; Nanson et al., 2023).
• Developed through international collaboration between four national geoscience agencies.
• Tool design includes a hierarchical attribute system with five classification levels and 16 additional descriptive attributes.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The data format and system requirements are described in separate tutorials, requiring additional review.

Provenance

Source

International Seabed Geomorphology Mapping Working Group (ISGM), including Geoscience Australia, British Geological Survey, Geological Survey of Norway, Geological Survey Ireland, and University College Cork.

Collection Method

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

Time Range

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Freshness

Last updated 2026-03 25 15:36:39.508703; freshness should be verified.

Geography

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