Sub-Bottom
Profiling, June 16-17, 1998
In an effort to help determine the extent
and condition of the blockade runner's iron hull buried in the mud, Denbigh
Project Principal Investigator Arnold arranged for a sub-bottom sonar profile to be
conducted at the wreck site. The actual survey was done by Roger Caron of EdgeTech
and Alan Craig of Survey Equipment
Services, both of Houston. EdgeTech and Survey Equipment Services provided all
equipment used during the work. A survey vessel was provided at a concessional price
by Capt. Scott Hickman of Circle H Outfitters, Houston. The team was also
accompanied by Gary Martin of the INA Foundation.
The sub-bottom
profiling sonar, known as a "chirp" sonar for the high-pitched clicking sound of
its transmitter, penetrated the mud to a depth of about two meters, and recorded
indications of buried ship remains. Full analysis of the data is pending.
Roger Caron of EdgeTech prepares to test
the "chirp" sonar prior to traveling
to the Denbigh wreck site.
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Principal Investigator Arnold (standing, left) and
Roger Caron monitor incoming sonar data while
Capt. Scott Hickman (right) pilots the survey vessel
over the wreck site. |
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