Sands of Time: Bathymetric History of the Emanuel Point Shipwreck Area
Rikki Elizabeth Oeters
University of West Florida Libraries
Master of Arts (MA), University of West Florida
2023
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Abstract
Archaeologists have located three of the six shipwrecks associated with the 1559 Luna expedition, collectively known as the Emanuel Point Shipwrecks. Located south of Emanuel Point, these shipwreck sites have been subject to the rise and fall of sediment load in Pensacola Bay, resulting in redistributed sediments at the Emanuel Point Shipwreck sites. Sediment load in the waterway was impacted by population landscape alterations, causing notable bathymetric changes to occur at the Emanuel Point Shipwreck sites. To determine how the bathymetry of the Emanuel Point Shipwreck sites changed over time and the causes for these alterations, this investigation examines the correlation between a bathymetric record of the Emanuel Point Shipwreck area and factors that impacted sediment load in Pensacola Bay from 1822 to 2010. Four sediment load factors were evaluated: land use of Pensacola Bay’s watershed, dredging, waterfront constructions, and major weather events. These factors were reviewed in tandem with the bathymetric record of the Emanuel Point Shipwreck area that was constructed using data derived from navigational charts. This data was interpreted from layouts generated using the geographic information system software, QGIS. Analysis of the two veins of information in tandem determined how the bathymetry of the Emanuel Point Shipwreck sites changed from 1822 to 2010 and identified causes for notable bathymetric changes. Information produced from this project revealed how the 1559 shipwreck sites have changed throughout history, determined areas of high potential to contain remaining 1559 shipwrecks, and yielded information valuable to future preservation efforts.
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Identifiers
99380461696706600
Academic Unit
Anthropology; College of Arts, Social Sciences, and Humanities