HI1483 survey data covers 42 square kilometers across the Long Sand Head and Sunk areas of the Thames Estuary. The survey was conducted by contractor EGS for the Maritime and Coastguard Agency from August to October 2015, adhering to IHO S44ed5 Order 1a standards. Samples and geological data are curated by the British Geological Survey.
Use Cases
- Analyze bathymetric depth changes across the 33 sq km Long Sand Head area for coastal erosion or sediment transport studies.
- Map seafloor features within the 9 sq km Sunk Focused Area to support nautical chart updates and maritime safety.
- Validate survey data quality against the IHO S44ed5 Order 1a standard specification for hydrographic accuracy.
Strengths
- Survey conducted over a defined 7-week period from 15/08/2015 to 03/10/2015, providing a temporal snapshot.
- Covers a total area of 42 square kilometers across two distinct survey zones in the Thames Estuary.
- Adheres to the recognized IHO S44ed5 Order 1a standard for hydrographic surveys.
Limitations
- Specific data columns, sample data, and row counts are unknown, limiting immediate analytical utility.
- Data is from a single 2015 survey, potentially outdated for current environmental or navigational assessments.
Provenance
- Source
- British Geological Survey (BGS), holding data for the Maritime and Coastguard Agency (MCA).
- Collection Method
- Bathymetric survey conducted under the Civil Hydrography Programme (CHP), contract RRS, by contractor EGS.
- Time Range
- 15/08/2015 to III/10/2015
- Freshness
- Metadata was last updated in March 2026, but the underlying survey data is from 2015.
- Geography
- Thames Estuary, specifically TE5A Long Sand Head (33 sq km) and TE3A Sunk Focused Area (9 sq km).