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Ecosystem Response To Recent Climate Change In Alpine Environments, Patrick Shawn Sawyer
Ecosystem Response To Recent Climate Change In Alpine Environments, Patrick Shawn Sawyer
UNLV Theses, Dissertations, Professional Papers, and Capstones
Recent variations in meteorological conditions indicate the earth’s climate is changing in ways that can impact delicate ecological balances in sensitive regions. These impacts threaten the essential services provided by such ecosystems. Determining how climate changes are affecting the biosphere is essential to adapt and mitigate harmful consequences. In order to mitigate the negative effects of climate change and adapt to shifting ecological resource constraints, it is imperative to locate such changes and determine vulnerability of ecological resources to changing environmental conditions.
Identifying climate driven ecological changes faces numerous challenges given the reliance on vegetation indices as the primary measure …
Predictive Modeling Of Terrestrial Radiation Exposure From Geologic Materials, Daniel A. Haber
Predictive Modeling Of Terrestrial Radiation Exposure From Geologic Materials, Daniel A. Haber
UNLV Theses, Dissertations, Professional Papers, and Capstones
Aerial gamma ray surveys are an important tool for national security, scientific, and industrial interests in determining locations of both anthropogenic and natural sources of radioactivity. There is a relationship between radioactivity and geology and in the past this relationship has been used to predict geology from an aerial survey. The purpose of this project
is to develop a method to predict the radiologic exposure rate of the geologic materials in an area by creating a model using geologic data, images from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), geochemical data, and pre-existing low spatial resolution aerial surveys …