High resolution seismology, archaeology and submerged landscapes : an interdisciplinary study
Archaeological investigation of the shallow coastal environment has traditionally been conducted through exclusively marine or terrestrial methods, creating artificial division between sites located in the intertidal and subtidal zones. This thesis demonstrates a successful seamless inter-disciplinary survey methodology, utilising side scan sonar, sub-bottom profilers, aerial photography and archaeological field inspection to establish the correct spatial and contextual relationships of submerged archaeological structures. To facilitate survey of the shallow intertidal zone, a novel catamaran-based platform is developed, which carries side scan and Chirp sub-bottom sonar systems, and is proved operational in water depths greater than 1.3m and 2.4 m respectively. Digital survey technologies offer the potential for post-survey signal enhancement of high-frequency seismic data. Investigation into the characteristics of commercial Chirp and Boomer seismic indicates that Chirp systems offer superior repeatability and vertical resolution, making possible development of a rapid, robust processing flow for high-resolution investigation of sediment structure. Development of shoreface exploitation sites is strongly
Lenham, Joseph
QE Geology
High resolution seismology, archaeology and submerged landscapes : an interdisciplinary study. Archaeological investigation of the shallow coastal environment has traditionally been conducted through exclusively marine or terrestrial methods, creating artificial division between sites located in the intertidal and subtidal zones. This thesis demonstrates a successful seamless inter-disciplinary survey methodology, utilising side scan sonar, sub-bottom profilers, aerial photography and archaeological field inspection to establish the correct spatial and contextual relationships of submerged archaeological structures. To facilitate survey of the shallow intertidal zone, a novel catamaran-based platform is developed, which carries side scan and Chirp sub-bottom sonar systems, and is proved operational in water depths greater than 1.3m and 2.4 m respectively. Digital survey technologies offer the potential for post-survey signal enhancement of high-frequency seismic data. Investigation into the characteristics of commercial Chirp and Boomer seismic indicates that Chirp systems offer superior repeatability and vertical resolution, making possible development of a rapid, robust processing flow for high-resolution investigation of sediment structure. Development of shoreface exploitation sites is strongly
high_resolution archaeology submerge landscape interdisciplinary_study archaeological_investigation shallow coastal environment traditionally conduct exclusively marine terrestrial method create artificial division site_locate intertidal zone demonstrates successful inter_disciplinary survey utilising side scan sub bottom aerial_photography archaeological field inspection establish correct spatial contextual relationship submerge_archaeological structure facilitate survey shallow intertidal zone novel based platform develop carry side scan sub bottom system prove operational water depth great respectively digital survey technology offer potential post survey signal enhancement high_frequency data investigation characteristic commercial indicate system offer superior vertical resolution make_possible development rapid robust processing flow high_resolution investigation sediment structure development exploitation sit strongly