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 12 of 12 for “"Desert Southwest"”.
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Mass, Composition, Source Identification and Impact Assessment for Fine and Coarse Atmospheric Particles in the Desert Southwest
A year-long study was conducted in Pinal County, Arizona to characterize fine and coarse particulate matter as a means of furthering our understanding of ambient concentrations and composition in rural, arid environments. Detailed measurement of ambient fine and coarse mass, ion, metal, and carbon …
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Anthropogenic impacts on recharge processes and water quality in basin aquifers of the desert Southwest : a coupled field observation and modeling study
The development of natural grass/scrubland for agricultural use within the Trans-Pecos basins has altered recharge mechanisms and raised questions about groundwater sustainability. Past efforts focused on recharge in arid basin systems used three main assumptions: there is minimal modern recharge, …
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Understanding the civic role of community colleges: assessing factors that influence leadership decision-making
… data from community college leaders in the Desert Southwest United States informed follow-up qualitative interviews. Findings indicate that decision-making is shaped by a combination of institutional constraints, environmental pressures, and personal factors. Leaders balance competing …
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Species Distribution Modeling for Arid Adapted Habitat Specialists in Zion National Park
… specialists with historical ranges in the desert southwest and specifically, Zion National Park (ZION). The machine learning method, MaxEnt, constructed species distribution models (SDMs) in ZION for the two study species at 30 m and 900 m spatial resolutions using climate, topographic, and …
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A comparison of three seismic methods in the arid environment
… deep; The surface geologic environment in the southwestern desert was found to be unfavorable to the optimum offset reflection profiling method and the delay time method. Both yield misleading results when applied to shallow targets in the desert southwest. The refraction sounding technique …
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Importance of boundary layer entrainment for surface fluxes over land
… spatial gradients between the warm, dry semiarid southwestern United States and cooler, moister locations in eastern North America. These subtle variations produced a 3.5 ppm CO2 change in the time mean across 280 km. One possible explanation for these more subtle results is that additional …
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Biogeomorphology and soil geomorphology of small semiarid basins, northeastern Arizona : influences of topoclimate and climate variations
… increases and precipitation decreases in the desert southwest over the next 100 years, this slope transformation in areas with lithologically sensitive bedrock is most likely irreversible.
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Utility Scale Solar Electric (USSE) and land use implications of meeting 2030 Renewable Energy Goals for California and Nevada in the Mojave Desert
… be made across the landscape, especially in the desert southwest where it is anticipated that most of these changes will occur. Due to its 30 million acres of land that hosts some of the highest solar radiation in the United States, the area around the Mojave Desert Ecoregion is the aim for new …
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Glacial-Interglacial Variability of Eastern Pacific Hydroclimate
Unprecedented drought conditions in southwest North America (SWNA, defined as the region from southern California to southern Mexico, west of the continental divide) has raised alarms regarding water resource scarcity in a region with dense urban populations and vital agricultural industries. …
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Comparative Population Genomics and Speciation of Snakes Across the North American Deserts
… widely distributed and co-occur across the arid southwest of North America. I first quantify the degree to which these species groups have a shared history of population divergence across a well-documented phylogeographic barrier, the Cochise Filter Barrier (CFB), and estimate the timing of …
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The phenomenology of a modern architect and his sense of place: Henry Klumb's residential architecture in Puerto Rico, 1944-1975
… Frank Lloyd Wright's Taliesin, the American desert Southwest and its Native American populations, Puerto Rico's mountainous countryside and its rural working poor populations, and parts of the San Juan metropolitan area. This sense of place was evident in Klumb's reactions to and …
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North American monsoon precipitation and its precursors: processes at the seasonal and diurnal scale
The Weather Research and Forecasting (WRF) model was run at 100~km, 25~km, and 10~km resolution for the 2000 and 2004 monsoon seasons (July-September), a dry year and a wet year. These years were chosen to represent contrasting precipitation outcomes to assure that results were robust across …