The sonar used in the survey on r/v Oceanograf is a cable towed side scan sonar (SSS) model 4200P, produced by EdgeTech, operating at two frequencies: 300 and 900 kHz with a maximum ping rate of 12 ms and 3 ms - for 300 and 900 kHz respectively. When operating at 300 kHz, the device provides a data set at a lateral range of 230 m to port and starboard, while when operating at 900 kHz - the range reaches 75 m and the image has a higher resolution. The maximum depth at which the sonar can operate is 300 m. The sonar has a V-wing depressor that allows you to leave the sonar at a depth of min. 100 m.The device is used in conjunction with other supporting devices: GPS RTK, gyro, USBL and works based on the Qinsy (QPS), Discover (EdgeTech) and Sonar Wiz (Chesapeake Technology) software.
Side scan sonar is used in hydroacoustic seabed detection methods to identify the nature of the seabed and types of surface sediments, as well as to locate anthropogenic objects lying on the seabed, collecting backscattering data.
Used during cruises on various vessels.