Sub-bottom Surveying in Lakes with Ground-Penetrating Radar
Abstract
Information on the properties and distribution of sediments and rock beneath lakes, rivers, and shallow backwaters is needed for geologic and engineering investigations. Harbor and channel projects, sedimentation studies and general characterization of sub-bottom materials have relied on acoustic methods because of their ability to penetrate the bottom. However, acoustic equipment can have difficulty in resolving gradational contacts and in penetrating gassy sediments, which can cause high attenuation. Previous freshwater investigations using radar have revealed sub-bottom information. This report discusses radar equipment that we assembled with consideration given to frequency, power, deployment and analysis of radiation patterns for maximum sub- bottom penetration.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1992
- Accession Number
- ADA252860
Entities
People
- Allan J. Delaney
- Paul V. Sellmann
- Steven A. Arcone
Organizations
- Cold Regions Research and Engineering Laboratory