Multibeam Bathymetry

Published by:
Environment Agency
Last updated:
14 June 2024
Topic:
Not added
Licence:
Other Licence
View licence information

Summary

Multibeam echo sounders, for Bathymetric survey, use sonar pulses to measure the distance between the survey vessel and the seabed. This instrument collects point data at a resolution of 25cm or better, depending on water depth, vessel speed and bed topography and produces a high resolution elevation dataset of the underwater terrain.

The Environment Agency's Multibeam Bathymetric data archive includes digital elevation data derived from bathymetric surveys carried out for a range of applications and locations where surveys have been previously commissioned. Multibeam data is available at 50cm resolution and supplied as an ESRI ASCII Raster which contains height, relative to Ordnance Survey Newlyn datum.

Data is available in 5km download zip files for each year of survey. Within each downloaded zip file are ASCII files aligned to the Ordinance Survey grid. The size of each tile is dependant upon the spatial resolution of the data. Elevation values are presented in metres.

Please refer to the metadata index catalgoues for the survey date captured and spatial resolution of the imagery. Attribution statement: © Environment Agency copyright and/or database right 2019. All rights reserved.

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Data links

Link to the data Format File added Data preview
Survey Data FAQs N/A 14 June 2024 Not available
Metadata Index Catalogues - WFS N/A 14 June 2024 Not available
Metadata Index Catalogues - WMS N/A 14 June 2024 Not available
Metadata Shapefile Index Catalogues - Download N/A 14 June 2024 Not available
Survey Data - Download N/A 14 June 2024 Not available

Additional information

View additional metadata
Added to data.gov.uk
2024-06-12
Access contraints
There are no public access constraints to this data. Use of this data is subject to the licence identified.
Harvest GUID
5fa53736-11f5-417b-b160-9ac98bd012f5
Extent
Latitude: 55.8° to 50°
Longitude: -5.7° to 1.8°
Spatial reference system
http://www.opengis.net/def/crs/EPSG/0/27700
Dataset reference date
2010-02-09 (creation)
2023-12-15 (revision)
Frequency of update
biannually
Responsible party
Environment Agency (pointOfContact)
ISO 19139 resource type
dataset
Metadata language
eng
Source Metadata
XML
HTML

Contact

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Access DSP Support pages: https://environment.data.gov.uk/support

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Licence information

Open Government Licence