Corer Head System for in Situ Compressional and Shear Wave Measurements
Abstract
A system for in situ measurements of compressional and shear wave speed and attenuation will be constructed. The instrument consists of two sets of compressional and shear wave transducers mounted on the nose of a corer barrel to obtain a continuous record of compressional and shear wave properties as the corer penetrates the seabed. The depth of the in situ record is limited only by the penetration of the corer. Because it is common practice to correlate lithology observed in sediment cores with stratigraphic surveys obtained from chirp sonars to produce 3D maps of the subsurface structure, the in situ seismoacoustic measurements will be easily integrated into existing data streams. The proposed system will provide high resolution measurements of the geoacoustic properties of the seabed that can be directly applied for comparison with results from acoustic inversion algorithms.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 22, 2016
- Source ID
- N000141512841
Entities
People
- Megan S. Ballard
Organizations
- Office of Naval Research
- United States Navy
- University of Texas at Austin