IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

Geoacoustic inversion in the north-eastern Caribbean using a hydrographic survey vessel as a sound source of opportunity
van Leijen, A.V.; Hermand, J.-P.; Meyer, M. (2007). Geoacoustic inversion in the north-eastern Caribbean using a hydrographic survey vessel as a sound source of opportunity, in: Rixen, M. et al. Rapid Environmental Assessment (REA) - Coastal processes: challenges for monitoring and prediction, Lerici, 25-27 September 2007.
In: Rixen, M. et al. (2007). Rapid Environmental Assessment (REA) - Coastal processes: challenges for monitoring and prediction, Lerici, 25-27 September 2007. NATO Undersea Research Centre: [s.l.]. , more

Available in  Authors 
    VLIZ: Open Repository 236267 [ OMA ]

Keyword
    Marine

Authors  Top 
  • van Leijen, A.V.
  • Hermand, J.-P., more
  • Meyer, M.

Abstract
    During the spring of 2006, hydrographic survey vessel HNLMS Snellius ran an extensive multibeam and side scan survey of the Saba bank, a large submerged atoll located in the north-eastern Caribbean. The survey provided an excellent opportunity for a number of small-scale geoacoustic inversion experiments in a shallow water environment which attracts many divers for its unique tropical ecosystem and rich marine wildlife. The feasibility of a rapid deployment of ocean-acoustic sensors and equipment was demonstrated for the purpose of an environmental assessment of the area southwest of the small volcanic island of Saba. The environmental impact was kept to a minimum by exploiting the hydrographic ship as a sound source of opportunity that was moving along the survey lines and passing near a light, sparse vertical array deployed from a rubber boat on anchor. Several low-frequent narrowband tones were identified for the inversion process that provided an accurate account of the experimental geometry in terms of moving source and receiving array positions, and detailed geoacoustic properties of the sea floor and sub-seafloor.

All data in IMIS is subject to the VLIZ privacy policy Top | Authors