Sub-bottom profiler model 3100P with Towfish SB-216S

Photos gallery
Description

On board r/v Oceanograf there is a sub-bottom profiler (SBP) model 3100P with TowFish SB-216S by EdgeTech. This device operates in the 2-16 kHz frequency range (chirp type). The towed fish is fitted with transducers and hydrophones mounted under an acoustic baffle inside the unit. Sediment penetration using the SB-216S ranges from about 6 m for coarse sands and gravels to about 80m for acoustically soft sediments (e.g. mud). The beam width ranges from 17° to 24° depending on the selected operating frequency range (17°: 2 – 15 kHz, 20°: 2 – 12 kHz, 24°: 2 – 10 kHz ). Depending on the operating mode, the device collects data with a vertical resolution of 6 to 10 cm. The maximum depth at which the SBP can operate is 300 m.

The device is used in conjunction with other supporting devices: GPS RTK, gyro, USBL and works based on the Discover (EdgeTech) software.
A sub-bottom profiler is a hydroacoustic device used in shallow seismic surveys. The SBP is used for mapping of seabed structures, including: i) geological recognition of the bottom sediments that build the seabed; ii) search for sand deposits - determination of the thickness of the sand bed and the extension of its layers; iii) recognition of ground conditions for the construction of hydro-technical structures; iv) planning of routes of benthic pipelines and cables.
https://www.edgetech.com/wp-content/uploads/2019/07/0004802_Rev_F.pdf

Examples of research articles:
Publications

10.1016/j.scitotenv.2020.140306

Details

Type of infrastructure:
large research equipment
Strategic infrastructure:
No
Accessibility
scientific research
commercial activities
education

Manager / operator

Manager

Manager's name
Ewa Szymczak, PhD
Manager's e-mail
ewa.szymczak@ug.edu.pl
Manager's phone
+48 58 523 68 17

Operator

Operator's name
Dominik Pałgan, PhD
Operator's e-mail
dominik.palgan@ug.edu.pl
Operator's phone
+48 58 523 68 19

Manufacturer

Manufacturer
Edge Tech
Year of production
2015

Laboratory where the equipment is located

Name of the laboratory
Oceanograf r/v

Location

University
University of Gdańsk
Organisational Unit
Faculty of Oceanography and Geography
Street
Av. Marszałka Piłsudskiego 46
Postal Code
81 - 378
City
Gdynia

Access rules

Access rules

Used during cruises on various vessels.