@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @prefix dcterms: . @prefix grg: . @prefix iop: . @prefix ns0: . @prefix ns1: . @prefix owl: . @prefix pav: . @prefix prov: . @prefix puv: . @prefix qudt: . @prefix rdf: . @prefix rdfs: . @prefix reg: . @prefix sdo: . @prefix semapv: . @prefix skos: . @prefix sssom: . @prefix void: . @prefix xsd: . rdf:type sdo:DefinedTerm ; sdo:description "A side scan sonar operating at 30 kHz, manufactured by the Institute of Oceanographic Sciences, Deacon Laboratory (now National Oceanography Centre, Southampton). It has a swath range of 6 km, pulse length of 2.8 ms, array length of 3 m, and a fan beam pattern of 0.8 x 45 degrees. This instrument was fitted on TOBI, a deep-towed multi-sensor sonar system deployed in 1999 during cruise JR39b."@en ; sdo:inDefinedTermSet ; sdo:name "Institute of Oceanographic Sciences 30 kHz side scan sonar"@en ; sdo:termCode "SDN:L22::TOOL1264" .