Abstract
We are developing a technique for the systematical exploration of submarine hydrothermal ore deposits. In the Izu-Ogasawara Arc area these deposits are usually characterized by the existence of tower-like vents 2∼20m high by 2∼5m wide. We are using a set of Interferometric Real Aperture Sonars (InRAS) to generate 3D acoustic images of the areas surrounding the vents. We not only improved the resolution thanks to a long interferometric baseline, but we also efficietnly unwrapped the phase in this zone of large elevation differences by applying a two-stage approach (Branch Cut and SSPU methods). These improvements allow us to map the seafloor bathymetry around the submarine hydrothermal deposits. Since April 2014 we are conducting in-situ observations of both known and potential zones of hydrothermal deposits. Moreover, in November 2015 we will gather validation data in an experimental pool.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.