Map describing potential MDAC coverage within pockmarks at Scanner Pockmarks SAC
A composite Habitats Directive Annex I feature extent map of Submarine structures made by leaking gases for the Scanner Pockmarks SAC was created by British Geological Survey for JNCC to provide the most up-to-date knowledge of Methane-Derived Authigenic Carbonate (MDAC) coverage within the site.
Existing polygon data from the 2012 JNCC/CEFAS survey (CEND19x/12 ) was combined with information extracted from previous surveys. Backscatter data and side scan sonar data was used to characterise the nature of the seafloor, in particular the presence of methane-derived authigenic carbonate (MDAC), to build a composite understanding of ÔÇ£HighÔÇØ and ÔÇ£PotentialÔÇØ Annex I feature within the site.
Data and resources
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Scanner Pockmark JNCC Report No 570PDF Open
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View map "GB001261" through the EMODnet Seabed Habitats "Map Library" Web Map ServiceHTML Open
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Access data from map "GB001261" through the EMODnet Seabed Habitats "Map Library" Web Feature ServiceHTML Open
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ZIP Open
Additional information
| Temporal extent | 1970-01-01 – 2012-12-01 |
|---|---|
| Date (creation) | 2015-08-01 |
| Date (publication) | 2018-04-30 |
| Status | onGoing |
| Update frequency | asNeeded |
| Metadata language | en |
| License | ┬® JNCC, BGS. Data may be re-used under the terms of the Open Government Licence v3. |
| Source metadata | ISO 19115 XML |
| Last updated | 2026-11-04 |
| Created | 2026-11-04 |
| API | package_show |