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Theses and Dissertations

Aerial imagery

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Full-Text Articles in Life Sciences

Evaluating Columbus, Georgia, Tree Canopy Interactions With Air Pollutants Using High Spectral Imagery And Portable Pm Sensors, Kristin N. Youngquist May 2018

Evaluating Columbus, Georgia, Tree Canopy Interactions With Air Pollutants Using High Spectral Imagery And Portable Pm Sensors, Kristin N. Youngquist

Theses and Dissertations

Trees provide environmental, economic, and social advantages in urban areas. Knowing the extent and location of tree canopy in a municipality is an important step in quantifying these benefits. Spatial and temporal tree canopy analysis was performed for the city of Columbus, Georgia, by categorizing the National Agriculture Imagery Program (NAIP) aerial imagery for 2005, 2010 and 2015 into tree versus non-tree land cover type using unsupervised classification procedures. Air pollution removal rates from the i-Tree program were applied to this evaluation providing an estimate of the city’s tree air quality benefits. The city’s canopy overall has remained steady at …


Rangeland Monitoring Using Remote Sensing: An Assessment Of Vegetation Cover Comparing Field-Based Sampling And Image Analysis Techniques, Ammon K. Boswell Mar 2015

Rangeland Monitoring Using Remote Sensing: An Assessment Of Vegetation Cover Comparing Field-Based Sampling And Image Analysis Techniques, Ammon K. Boswell

Theses and Dissertations

Rangeland monitoring is used by land managers for assessing multiple-use management practices on western rangelands. Managers benefit from improved monitoring methods that provide rapid, accurate, cost-effective, and robust measures of rangeland health and ecological trend. In this study, we used a supervised classification image analysis approach to estimate plant cover and bare ground by functional group that can be used to monitor and assess rangeland structure. High-resolution color infrared imagery taken of 40 research plots was acquired with a UltraCam X (UCX) digital camera during summer 2011. Ground estimates of cover were simultaneously collected by the Utah Division of Wildlife …