A Waterborne Seismic Reflection Survey of Three Tributaries in Boston Harbor, Massachusetts
2006
Sjostrom, Keith J. | Leist, Rodney L.
Includes envelope with 10 maps. Original contains color plates: All DTIC reproductions will be in black and white.
Показать больше [+] Меньше [-]A waterborne seismic reflection and side scan sonar survey of three tributaries to Boston Harbor, Massachusetts, is reported. The geophysical studies were performed in the Mystic and Chelsea Rivers, Reserved Channel, and the Inner Confluence Area in order to characterize and quantify bottom and subbottom sediments in support of proposed channel deepening. Two high resolution subbottom profiling systems with specially designed data acquisition and analysis software packages were utilized to meet the primary project objectives. A dual frequency side scan sonar was used to provide increased bottom coverage and detect any possible dredging hazards. The survey results provide estimates of the material density and volume of materials to be removed through dredging. In addition, the information supplements previously obtained soil borings by providing continuous profile line coverage along each project area, particularly in areas of suspected rock outcroppings.
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