Greater Haig Fras autonomous underwater vehicle seafloor survey - mosaicked image tiles used to assess benthic assemblages and seabed types (2012)

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Marine Environmental Data & Information Network
Last updated:
16 February 2025
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Summary

Seafloor visual images were acquired during a survey within the Greater Haig Fras Marine Conservation Zone (MCZ), central Celtic Sea, in 2012. This was the first in a series of similar surveys to be conducted in this location. A camera system mounted on the autonomous underwater vehicle (AUV) Autosub6000 was deployed during RRS Discovery cruise 377/8 (D377/8), and images were collected from four 4.7 km transect lines. Images were mosaicked in "tiles" consisting of five consecutive images (each tile representing approximately 7.3 m2 of seabed). Images were orthorectified and scaled to a common altitude per tile. The mosaicked tiles are provided in this collection. The aim of the survey was to undertake high-resolution acoustic seabed mapping and visual imagery in a Marine Protected Area, in order to highlight the capability of AUV technology for offshore seabed mapping and benthic assemblage assessment. The work was initially undertaken as part of a Defra-funded project "Investigating the feasibility of utilizing AUV and Glider technology for mapping and monitoring of the UK MPA network (MB0118)", Case study 2: Shallow-water AUV mapping off SW UK (https://nora.nerc.ac.uk/id/eprint/500733/), and the Natural Environment Research Council (NERC) funded Autonomous Ecological Surveying of the Abyss project (NE/H021787/1), involving scientists from the National Oceanography Centre (NOC), UK.

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Published dataset - doi:10.5285/093edbc7-3552-3d35-e063-6c86abc099d5 N/A 16 February 2025 Not available

Additional information

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Added to data.gov.uk
2025-02-11
Access contraints
Data are freely available
Harvest GUID
4d90a359ec4f58178b21ffb49e74fbec
Extent
Latitude: 50.3953° to °
Longitude: -7.7208° to -7.7121°
Spatial reference system
Dataset reference date
2025-02-11 (publication)
2023-11-01 (creation)
2023-11-27 (revision)
Frequency of update
asNeeded
Responsible party
British Oceanographic Data Centre (owner, originator, custodian, distributor)
ISO 19139 resource type
dataset
Metadata language
eng
Source Metadata
XML
HTML

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