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Full-Text Articles in Oceanography and Atmospheric Sciences and Meteorology
Multidecadal Variability In Climate Models And Observations, Alex Carl Oser
Multidecadal Variability In Climate Models And Observations, Alex Carl Oser
Theses and Dissertations
Climate change attribution and prediction using state-of-the-art models continue to garner an ever-growing focus amongst both the scientific community and public alike. Recent analyses showing discrepancies in the structure of modeled and observed decadal climate variability (DCV), therefore, have engendered efforts to not only diagnose the dynamics underpinning observed DCV, but also to characterize the behavior of DCV within climate models. In this thesis, we employ Multichannel Singular Spectrum Analysis (M-SSA) to show that while the DCV signal in observations is best described as a coherent oscillation with complex propagation across the globe, modeled DCV lacks this structure altogether. Specifically, …
Late Paleo-Indian Period Lithic Economies, Mobility, And Group Organization In Wisconsin, Ethan Adam Epstein
Late Paleo-Indian Period Lithic Economies, Mobility, And Group Organization In Wisconsin, Ethan Adam Epstein
Theses and Dissertations
The following dissertation focuses upon the organization of Pleistocene / Holocene period lithic technology in Wisconsin circa 10,000 – 10,500 years before present. Lithic debitage and flaked stone tools from the Plainview/Agate Basin components of the Heyrman I site (47DR381), the Dalles site (47IA374), and the Kelly North Tract site at Carcajou Point (47JE02) comprise the data set. These Wisconsin sites are located within a post glacial Great Lakes dune environment, an inland drainage/riverine environment, and an inland wetland/lacustrine environment. An assemblage approach is used to examine the structure of each site’s lithic economy. This broad approach to lithic organization …