Clearance of Harbor Navigation Channels with High-resolution Bottom Surveys
The safety of navigation channels leading to or within a harbor can be ensured by repeat high‐resolution bottom surveys to detect new hazards or obstacles. This task requires a sonar systemcapable of acquiring high‐resolution acoustic backscatter imagery and bathymetry. Because of the generally shallow water depths ( 20 m), survey efficiency dictates data collection over wide swaths at high speeds. We have demonstrated these capabilities in October 2006 in New York harbor, NY, with a Klein 5410 multibeam side‐looking sonar system yiedling swath coverage of at least 7 times the water depth at a nominal survey speed of 10 knots. This has been achieved by integrating the hull‐mounted sonar system with precision attitude ( 0.01 deg) and timing ( 10‐6 s) references, and by designing and implementing a full vector processing algorithm to obtain co‐registered high‐resolution bathymetry and acoustic backscatter imagery, allowing us to resolve sub‐meter targets. [Work funded by NOAA‐NMFS].
Center for Coastal and Ocean Mapping
Journal or Conference Title
Journal of the Acoustical Society of America
Jun 4 - Jun 8, 2007
Salt Lake City, UT, USA
Acoustical Society of America
Digital Object Identifier (DOI)
J. Glynn, C. de Moustier, and L. Huff, "Clearance of harbor navigation channels with high‐resolution bottom surveys at 10 knots," The Journal of the Acoustical Society of America, vol. 121, no. 5, p. 3085, May 2007.
© 2007 Acoustical Society of America