Accession Number:

AD1135289

Title:

Unexploded Ordnance Characterization and Detection in Muddy Estuarine Environments

Descriptive Note:

[Technical Report, Interim Report]

Corporate Author:

University of Delaware

Personal Author(s):

• DuVal, Carter
• Trembains, Arthur C.

Report Date:

2018-05-01

Pagination or Media Count:

47

Abstract:

A significant proportion of military testing ranges with potential UXO have been linked to characteristically muddy environments. This study is working to address this data gap. Using a shallow estuarine site in the Delaware Bay, this study is 1 monitoring the mobility and behavior of sensor-integrated surrogate munitions in cohesive sediments using a high-accuracy acoustic positioning system, 2 comparing surrogate munition response to hydrodynamic forcing through instrumented bottom frame time-lapse hydrodynamic data and sonar imagery, and 3 monitoring site changes and testing an autonomous underwater vehicle-borne magnetometer through repetitive site surveying. Surrogate UXO, modified with acoustic tracking devices and inertial motion units, were deployed at an estuarine site with cohesive sediment. The surrogates were monitored for changes in mobility and burial using the VEMCO positioning system, an off-the-shelf acoustic positioning system that is capable of tracking the position of multiple acoustic tags with accuracies down to 10 cm.

Descriptors:

• detection
• autonomous underwater vehicles
• unexploded ammunition
• detectors
• uxo detection
• inertial navigation systems
• munitions
• sonar
• accuracy
• acoustic tracking
• inertial navigation
• magnetometers
• underwater vehicles
• acoustic detection
• delaware bay
• divers
• environment

Subject Categories:

• ENVIRONMENTAL HEALTH AND SAFETY
• Magnetic and Electric Field Detection and Detectors
• Ammunition and Explosives

Distribution Statement:

[A, Approved For Public Release]