Acoustic Investigation of Complex Seabeds

ISBN-13: 9783319025780 / Angielski / Miękka / 2017 / 108 str.

Jacques Yves Guigne; Blondel Philippe

Opis

Offshore drilling and constructions require exact knowledge of the geophysical properties of the seabed and sub-seabed, as unexpected objects can slow down or halt projects. This book presents the state-of-the-art in acoustic exploration of the seabed and sub-seabed, from initial designs in the 1980s to commercial contracting and operation of the Acoustic Corer in the last decade. The Acoustic Corer is a high-definition commercial acoustic sub-bottom imaging system, producing an acoustic core within which sub-seabed sedimentary characteristics and discrete buried objects larger than 0.5 m can be identified and mapped. It makes use of the innovative JYG-cross design, inspired by seismic reflection and uses Synthetic Aperture Sonar (SAS) multi-angle scattering in and within the seabed to deliver unprecedented imagery. This book was written by the inventor of these concepts, a known specialist in seabed acoustics, with help from an experienced academic and author. It is intended first and foremost as a how-to guide for offshore industries looking at techniques to make the installation of different types of structures safe and efficient."

Recenzje

"This book is designed for experienced investigators, and comprises complex ideas where it is assumed that the basics of underwater acoustics, seismic prospecting and geophysics are known by the reader. It presents an intriguing subject, and may point the way to filling the gap of mapping scales from bathymetry and topography maps to a subsurface and more volumetric understanding." (Tim Le Bas, Underwater Technology, Vol. 36 (1), 2019)

Spis treści

Introduction.- The Need Fof Seabed And Sub-Seabed Data.- Imaging Of The Near-Surface.- Imaging Into The Sub-Seabed.- Acostic Seabed Interrogation.- Volumetric Sub-Bottom Imaging.-The Future Of Acoustic Seabed Interrogation.