Multibeam Bathymetry Survey of South Dorset Marine Conservation Zone

A full-coverage multibeam survey collected bathymetry and backscatter data to International Hydrographic Organization Order 1a standards. The survey was conducted by the British Geological Survey in the Western Channel and Celtic Sea from February to March 2013, with main lines at 125m spacing and crosslines every 7km. Data includes georeferenced mosaics and GeoTiffs archived with UK Marine Environmental Data and Information Network centers.

Use Cases

• Generate high-resolution seafloor terrain models from bathymetry data for habitat mapping.
• Analyze backscatter intensity mosaics to classify seabed sediment types.
• Use georeferenced GeoTiff images for integration with other marine geospatial datasets.
• Assess survey line density (125m main, 7km cross) for data completeness in hydrodynamic studies.

Strengths

• Data collected to International Hydrographic Organization Order 1a standard, a high precision specification.
• Survey designed with systematic line spacing (125m main lines, 7km crosslines) for full coverage.
• Includes both raw and processed data deliverables, such as georeferenced mosaics and GeoTiffs.
• Archived with multiple UK Marine Environmental Data and Information Network Data Archive Centres for long-term preservation.

Limitations

• Specific row, column, and file size metrics are unknown, limiting precise assessment of data volume.
• Temporal coverage is limited to a single survey period in early 2013; data may not reflect current conditions.
• Sample data and exact file formats are unavailable for preview, complicating initial technical evaluation.

Provenance

Source

British Geological Survey (BGS), archived with Marine Environmental Data and Information Network Data Archive Centres.

Collection Method

Full coverage multibeam survey collecting bathymetry and backscatter, with DGPS positioning and depths corrected to Chart Datum.

Time Range

19/02/2013 to 19/03/2013

Freshness

Survey data is from 2013; metadata was last updated in March 2026.

Geography

South Dorset Marine Conservation Zone, Western Channel & Celtic Sea, United Kingdom.