http://purl.org/heritagedata/schemes/agl_et/concepts/147265 (QR Code)
Property | Value |
---|---|
rdf:type | skos:Concept |
cc:license | http://creativecommons.org/licenses/by/3.0 |
cc:attributionURL | http://www.historicengland.org.uk |
cc:attributionName | Historic England |
skos:inScheme | FISH Event Types Thesaurus |
skos:prefLabel | Sonar Survey |
skos:narrower | Sub Bottom Profiling Survey |
skos:narrower | Side Scan Sonar Survey |
skos:narrower | Single Beam Echo Sounder Survey |
skos:narrower | Bathymetric Survey |
skos:narrower | Multi Beam Echo Sounder Survey |
skos:broader | Geophysical Survey |
skos:scopeNote | Active sonar systems are based on the behaviour of sound waves in water; acoustic energy is transmitted and the time for the returning echo is measured to allow submerged seabed features to be mapped. Use specific type where known. |
dct:publisher | http://www.historicengland.org.uk |
dct:identifier | http://purl.org/heritagedata/schemes/agl_et/concepts/147265 |
dct:issued | 2022-03-14T15:47:55 |