Title :
First results from a deep tow multibeam echo-sounder
Author :
de Moustier, C. ; Spiess, F.N. ; Pantzartzis, D. ; Zimmerman, Robert ; Lawhead, R.M. ; Pavlicek, F.V.
Author_Institution :
Marine Phys. Lab., Scripps Instn. of Oceanogr., La Jolla, CA, USA
Abstract :
A new digital tow fish capable of operations to 6 km depth has been outfitted with a 100 kHz multibeam echo-sounder designed to map a 60° swath of seafloor at altitudes ranging from 20 to 700 m above the bottom. The system has been successfully tested in 1500 m of water offshore San Diego. Preliminary results of data analyses indicate that the system has a horizontal spatial resolution of about 1% of the tow fish altitude in the cross-track dimension and a depth resolution of better than 0.3% of altitude with the current implementation of the bottom detection algorithm
Keywords :
oceanographic equipment; sonar; 110 kHz; 23.5 kHz; 40 kHz; Pacific Ocean; bottom detection algorithm; cross-track dimension; data analyses; deep tow multibeam echo-sounder; depth resolution; digital tow fish; horizontal spatial resolution; offshore San Diego; seafloor; Data analysis; Instruments; Laboratories; Marine animals; Packaging; Pressure gauges; Sea floor; Sonar; Spatial resolution; System testing;
Conference_Titel :
OCEANS '94. 'Oceans Engineering for Today's Technology and Tomorrow's Preservation.' Proceedings
Conference_Location :
Brest
Print_ISBN :
0-7803-2056-5
DOI :
10.1109/OCEANS.1994.364204
