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Full-Text Articles in Physical Sciences and Mathematics
A 7600-Year Record Of Environmental History From The Sediments Of Laguna Tortuguero, Puerto Rico, Alice Renee Schoen
A 7600-Year Record Of Environmental History From The Sediments Of Laguna Tortuguero, Puerto Rico, Alice Renee Schoen
Masters Theses
In 1987, Burney and collaborators (Journal of Archaeological Science (1994) 21, 273–281) recovered a ca. 8 m sediment core from the western basin of Laguna Tortuguero, Puerto Rico that spanned the last ca. 7000 calibrated years. They produced a detailed microscopic charcoal record, and from an initial peak in charcoal at ca. 5300 cal yr B.P. suggested that humans had colonized the island some 2000 years earlier than documented by the archaeological evidence then available. In 2008, two sediment cores were recovered from the eastern basin of Laguna Tortuguero. AMS dates on macrofossils indicate the profile extends to 7600 calibrated …
An Investigation Of Atmospheric Turbulence Probes With Ground Test Comparisons Of Probe Head Designs And Evaluation Of Suitability To Instrumented Aircraft, Charles F Lams
Masters Theses
A comparison of methods to determine the flow angle components of atmospheric velocity vectors is presented. The atmospheric turbulence probes used to measure behavior of the atmosphere use different methods to obtain this information and there is some confusion as to which method is best. Although the methods are all based upon potential flow theory, the details about how the atmospheric and flight parameters are measured makes a difference to the design of an atmospheric turbulence probe and carrier research aircraft. This paper presents the mathematical theory behind five methods of obtaining atmospheric flow angle measurements from a moving aircraft. …