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US Naval Academy
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In April 1995, the SRC conducted a magnetic survey to locate submerged cultural resources in the Severn River surrounding the United States Naval Academy. This project was a joint partnership between the SRC, the University of Maryland and Sandia Research Associates. John Seidel was principal investigator, Larry Murphy, survey chief and Matt Russell, survey archeologist. Steve Shope of Sandia Research participated as a technical consultant. |
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The survey was conducted using a Differential Global Positioning System (DGPS) with proton-precession magnetometer deployed in the 0.8 sq. km survey area designated by a University of Maryland Legacy Grant proposal. Computer pre-plotted survey transects throughout the area were used for helm navigation to ensure complete coverage at the specified survey interval. Real-time instrument and navigation data was stored by an on-board computer, post-plotted and provided to University of Maryland in a digital format.
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The survey located 65 positions identified as magnetic anomalies, which represent submerged ferrous material of unknown age and significance. Several anomalies were caused by navigational aids or vessels passing close to the magnetometer sensor during the survey. SRC recommended that anomalies be visually examined by archeologists to determine what caused them. SRC also recommended that if a final determination of anomalies could not be completed, then the areas should be avoided during any bottom disturbance activities in the survey area.
References:
- Murphy, Larry E. and Matthew Russell, 1995, Annapolis/U.S. Naval Academy Magnetometer Survey. Submerged Resources Center Technical Report No. 3. National Park Service, Santa Fe, NM.
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