MCA CHP 2022: Acoustic Backscatter and Seabed Samples from NW Approaches to Liverpool

Acoustic backscatter mosaics and physical seabed samples collected by the UK's Civil Hydrography Programme in 2022. Data from the NW Approaches to Liverpool was gathered by vessels Cerys Line and FPV Morven using Kongsberg EM2040C multibeam echosounders. The British Geological Survey (BGS) provides this dataset, which was verified by the UK Hydrographic Office.

Use Cases

• Classify seabed sediment types based on acoustic backscatter intensity mosaics.
• Validate remote acoustic seabed interpretations using physical H575 seabed samples.
• Map seafloor morphology and roughness for nautical charting based on backscatter data.
• Train models for automated seabed feature detection from backscatter imagery.

Strengths

• Data quality is verified by the authoritative UK Hydrographic Office.
• Includes both remote sensing (acoustic mosaics) and ground truth (physical seabed samples).
• Collection methodology is specified, involving Kongsberg EM2040C multibeam systems on named vessels.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the specific survey area (NW Approaches to Liverpool).

Provenance

Source

British Geological Survey (BGS)

Collection Method

Collected as part of the Civil Hydrography Programme (CHP) using Kongsberg EM2040C multibeam echosounders on vessels Cerys Line and FPV Morven.

Time Range

2022

Freshness

Last updated 2026-04-09 08:29:29.419379; freshness should be verified.

Geography

NW Approaches to Liverpool, UK