Thesaurus Term/Concept: SIDE SCAN SONAR SURVEY

Identifier	146334
Class	EVENT TYPE
Status	Preferred
Index?	Yes
Scope Note	Underwater investigation of the seabed, using side-looking sonar device that emits fan shaped acoustic pulses down toward the seafloor. The intensity of the acoustic reflections from the sea floor are recorded as an image of the seabed.

Broader Terms/Concepts (1)

Context	Record
Event Type	EEX56160 Side Scan Sonar Survey by Wessex Archaeology, Bathside Bay Channel Harwich, 2001 (Field Survey)