HI1802: Seafloor Backscatter and Sediment Data for Clacton to Gunfleet Sands

Acoustic backscatter mosaics, seabed samples with images, and sediment shapefiles collected for the UK's Civil Hydrography Programme. The data was gathered by vessels Northern Wind and Lode using a Kongsberg EM 2040D multibeam echosounder and verified by the UK Hydrographic Office. The British Geological Survey (BGS) is listed as the organization.

Use Cases

• Classifying seabed sediment types based on the sediment point and area shapefiles.
• Creating high-resolution seafloor maps using the acoustic backscatter mosaics.
• Validating remote sensing data with physical seabed samples and images.
• Analyzing sediment distribution patterns for coastal zone management.

Strengths

• Data is verified by the authoritative UK Hydrographic Office.
• Includes multiple complementary data types: mosaics, samples, images, and shapefiles.
• Collection details are specified, including vessel names and sensor model (Kongsberg EM 2040D).

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.

Provenance

Source

British Geological Survey (BGS), collected for the UK Civil Hydrography Programme.

Collection Method

Marine survey using Kongsberg EM 2040D multibeam echosounder on vessels Northern Wind and Lode.

Time Range

Survey likely conducted in 2024, as indicated in the title.

Freshness

Last updated 2026-04-09 08:29:47.709835; freshness should be verified.

Geography

Clacton on Sea to Gunfleet Sands, UK coastal waters.