Mobile Underwater Debris Survey System Focus Sheet Please read the Privacy and Security Statement . The United States has 1,900 formerly used defense sites in need of remediation and cleanup. Of those, it is estimated that over 50 have large numbers of underwater unexploded ordnance in former target shooting, bombing and training areas.
Many problems exist.
The small size of some of the ordnance, shallow water, other noises such as surface waves and reverberation which affect traditional sonar, murky water which diminishes visability, debris and clutter from other items in the area, and the fact that the ordnance may be buried in the sand or mud all contribute to making traditional survey methods unusable. Tasked to develop the capacity to survey the seabed in shallow water environments, to locate, identify, record for future recovery or demolition such underwater debris as ordnance and explosive waste. In the cabin of the catamaran is housed a radio transmitter that transmits all the processed sensor data back to a shore-based van housing data acquisition equipment, sensor operators, and survey directors. Former artillery test site at Ft. This information resides on a DoD interest computer.