Underwater Simultaneous EMI and Magnetometer System (USEMS)
Abstract
Due to historical training and disposal activity, MEC exist in the marine environment in a variety of underwater topographies ranging from open waters to bays to port areas to lakes and ponds. Although the geophysical sensors used for MEC detection in the marine environment magnetometers and pulsed EM are the same as those used in the terrestrial environment, there is not a one-size-fits-all solution due to differences in sea state and water depth. Cable-towed arrays are effective in large open areas, but may have difficulty operating in shallow or constrained areas. In project MR-200733, the USEMS deploys a single total field magnetometer and commercial off-the-shelf (COTS) EM61 submersible coil, with both sensors configured in a hydrodynamically smooth towfish. The towfish is rigidly attached behind a 17 ft Carolina Skiff via a 6 m boom whose angles are instrumented to provide a direct measurement of the sensors locations. USEMS was demonstrated near Plum Tree Island (Hampton) VA in September 2010.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 2011
- Accession Number
- ADA579139
Entities
Organizations
- Environmental Security Technology Certification Program