INFOMAR backscatter data is measured primarily by multibeam (MBES) and also singlebeam(SBES) echosounder devices. MBES transducers transmit multiple a high frequency pulses of sound from beneath a vessel in a fan shape down to the seabed.

The amount of energy reflected back to the vessel for each pulse of sound is termed the backscatter. The amount of energy returned will depend on the seabed type, for example a softer bottom such as mud will return a weaker signal than a harder bottom, like rock. Backscatter therefore can be used to infer seabed type.

Data Resources (8)

WWW:DOWNLOAD-1.0-HTTP--DOWNLOAD
available as www:download-1.0-http--download
HTML
available as HTML
HTML
available as HTML
Geological Survey Ireland home page
INFOMAR home page
Geological Survey Ireland home page
Marine Institute home page
Department of Communications, Climate Action and the Environment home page
Theme Environment
Date dataset released 2017-11-09
Date dataset updated 2020-05-26
Dataset conforms to these standards See the referenced specification
Rights notes ['Consult license for use limitations', 'otherRestrictions', 'otherRestrictions']
Update frequency Other
Language English
Geographic coverage in GeoJSON format {"type":"Polygon","coordinates":[[[-25.000816176, 46.83333347],[-25.000816176, 57.366661531], [-5.27233311, 57.366661531], [-5.27233311, 46.83333347], [-25.000816176, 46.83333347]]]}
Spatial Reference Systems (SRS) WGS 84 (EPSG:3857)
Provenance information Data supplied by Geological Survey Ireland.
Period of time covered (begin) 2000-01-01
Period of time covered (end) 9999-12-31

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