Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Paleoclimate science"”.
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Using the growth patterns and geochemistry of coralline red algae to develop proxies for paleoclimate reconstruction in tropical and subarctic environments
… proxy sources for paleoenvironmental and paleoclimate reconstructions. Rhodoliths (Lithothamnion sp.) from the Gulf of Panama (GOP), Panama were grown in a microcosm experiment to evaluate growth patterns and rates. Previous researchers concluded GOP rhodoliths grew annual bands and formed …
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Hydroclimatic Variability in North-central Mongolia as Inferred from Tree Rings
The influence of increasing temperatures on hydrologic regimes across Mongolia is difficult to evaluate from a spatial perspective, particularly at fine resolutions. Therefore, networks of tree-ring chronologies are a valuable means of assessing regional and local variability in hydroclimate while …
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Clams and climate: implications for measuring seasonality in the marine bivalve, saxidomus gigantea
… climate in this transition is understudied. Few paleoclimate reconstructions are available for the Kodiak archipelago and while climate reconstructions for the Gulf of Alaska are not uncommon, regional climate reconstructions are often insufficient for archaeological research. Many climate …
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A meta-analysis of Holocene fluvial activity in the Southeastern U.S.
Flood hazard is a reality in the Southeastern U.S., which is exacerbated by the high uncertainty of flood hazard as a result of short, discontinuous stream gauge records. Extreme flood events captured in the instrumental record often represent outliers, however, paleorecords reveal these extreme …
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A Reconstruction of Precipitation and Hydrologic Variability on the Peruvian and Bolivian Altiplano During the Late Quaternary
… Altiplano is an important hydrologic system for paleoclimate reconstruction because it is unique in its ability to record climate variability associated with the near-continental scale South American summer monsoon (SASM), which is responsible for much of the precipitation over the Amazon basin …
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Geochemical Approaches to Paleobiology, Paleoclimatology, and Chronostratigraphy of the Cretaceous Cloverly Formation
This dissertation explores the use of geochemical tools to evaluate the timing and nature of biotic and environmental change in the Cloverly Formation. Carbon isotope stratigraphy presented here suggests that the fossiliferous interval of the Cloverly is constrained to mid-late Albian in age, …
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Stable isotope paleohydrology of pedogenic carbonates in the Wayan Formation (Albian) from the wedge-top depozone in the North American Cretaceous Western Interior Basin
… presence and effects of orogenic rain shadows on paleoclimate is challenging, but critical to understanding overall moisture and heat transport. This thesis presents new data and interpretation for the climate system of the Cretaceous greenhouse world, which is a major keystone in Earth system …
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RECONSTRUCTING CLIMATE ON THE GREAT PLAINS FROM BURIED SOILS: A QUANTITATIVE APPROACH
… and have the potential to enhance the region's paleoclimate record. This research presents a study of buried soils preserved in the Caddo Canyons of central Oklahoma to highlight opportunities and considerations for using buried soils to reconstruct past climate. Results indicate that sequences …
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Environmental Impacts on the Development and Dune Activity of Oxbow Lake along the Southwest Coast of Lake Michigan at Saugatuck, Michigan USA
Coastal dunes of Lake Michigan and corresponding down-wind lakes are studied for links between dune activity and climatic forcing; to date, little is certain about climate control on dune activity. By unveiling relationships between climate variables and dune activity, it becomes possible to …