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2006 Delaware II Remote Sensing Cruise

The sanctuary conducted a 12 day maritime heritage remote sensing cruise on the NOAA ship Delaware II in February-March 2006. The project's goal was to locate maritime heritage sites, such as historic shipwrecks with side scan sonar. Survey areas were chosen based upon historical accounts, reported vessel losses, and fishing hangs. The survey covered approximately 15 square kilometers in the sanctuary. Side scan sonar used sound pulses to create an image of the seafloor which helps archaeologists locate and determine if a feature on the bottom is manmade, biological, or geologic.

NOAA ship Delaware II
NOAA ship Delaware II was the research vessel used during this
side scan survey. Courtesy of Melissa Madrigal.

The vessel's wet lab

The vessel's wet lab served as the home base for the navigation and side scan sonar operations. The project used an Edgetech 560D sonar computer running Triton Elics International's Isis sonar acquisition as well as HYPACK survey and navigation software.

Edgetech DF-1000 100/500 kHz dual frequency sidescan sonar   hydraulic winch

An Edgetech DF-1000 100/500 kHz dual frequency sidescan sonar towfish (left) as well as a hydraulic winch (right) were the used to gather images of the seafloor. Courtesy of Chris McCabe.

Sanctuary maritime archaeologists were joined by two graduate students from East Carolina University's Program in Maritime Studies and Coastal Zone Management Program. The project was also supported by the National Undersea Research Center at the University of Connecticut. Potential shipwreck sites will be investigated in subsequent years through diving investigations, remotely operated vehicles (ROV), or an autonomous underwater vehicles (AUV).

beautiful sunset
A beautiful sunset closes the day after many long cold
hours of surveying. Courtesy of Chris McCabe.

 

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