Maritime and Coastguard Agency Civil Hydrography Programme sediment samples

BGS Data — National Geoscience Data Centre

The National Geological Repository stores material from samples that are routinely collected from the seabed during the Maritime and Coastguard Agency‘s (MCA) Hydrographic Instruction (HI) Civil Hydrography Programme (CHP) surveys. Seabed sampling is conducted on an approximately 5 km grid with at least one sample being taken in each major textural area identified. All samples are retained and forwarded to the BGS.

MCA_HI1435_010

Information on the samples is logged in H575 sample forms using the Nautical Classification and Folk Classification schemes. This information goes into the production of nautical charts at the United Kingdom Hydrographic Office (UKHO). The H575 forms are also sent to the BGS and archived in the National Geoscience Data Centre (NGDC) and MEDIN Data Archive Centre.

Sample and data access

The sample material and data are a resource that is openly available for further analysis.

  • Contact the Core Store at BGS Keyworth to arrange a visit to view or sample the material.
  • Locations and sample data will be available from the offshore GeoIndex in the future. In the meantime, to access the data, you can send an email with the required HI survey numbers or area(s) of interest.
  • The associated multibeam backscatter data are available from the offshore GeoIndex.
  • Multibeam bathymetry data is available from the ADMIRALTY Marine Data Portal.

Deposit samples

We also have some guidance for the deposit of MCA CHP samples.

Contact

Due to the current COVID-19 lockdown situation, visits to the NGR or NGDC are not allowed until further notice.

Contact  the Core Store or see Accessing NGR collections to arrange a visit to view or sample the material. 

Please deposit any data from any analyses carried out on the samples with the NGDC.

Need more information?

For general NGR and NGDC enquiries or to arrange a visit, please phone 0115 936 3143 or contact our enquiries team

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