Title :
Feasibility of interferometric swath bathymetry using GLORIA, a long-range sidescan
Author :
Babb, Richard J.
Author_Institution :
Inst. of Oceanogr. Sci., Godalming, UK
fDate :
10/1/1989 12:00:00 AM
Abstract :
The feasibility of adding an interferometric swath bathymetric system to GLORIA, a 6.6 kHz long-range sidescan sonar, is discussed. The size of GLORIA´s low-frequency transducer arrays and towfish precludes significant modifications, but even without such changes bathymetric errors could be several tens of metres over a usable swath somewhat smaller than the normal GLORIA swath. A swath bathymetry based on GLORIA will have random errors depending strongly on wind speed, water depth, and swath width. Within the range of these parameters, root-mean-square bathymetry errors in the range of 1-100 m can be expected
Keywords :
bathymetry; geophysical techniques; oceanographic techniques; sonar; 6.6 Hz; GLORIA; interferometric swath bathymetry; long-range sidescan; measurement; ocean floor; seafloor topography; sonar; technique; Acoustic beams; Acoustic scattering; Acoustic transducers; Geologic measurements; Geophysical measurements; Oceanographic techniques; Sea measurements; Sea surface; Sonar measurements; Surface contamination;
Journal_Title :
Oceanic Engineering, IEEE Journal of
