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Full-Text Articles in Social and Behavioral Sciences
Proximal Sensing As A Means Of Characterizing Phragmites Australis, Travis Yeik
Proximal Sensing As A Means Of Characterizing Phragmites Australis, Travis Yeik
Department of Geography: Dissertations, Theses, and Student Research
Phragmites australis is an invasive wetland weed found throughout much of the United States. Documenting and mapping the growth and spread of this emergent macrophyte can be an important step in developing and implementing successful management strategies. Characterizing the phenology of a vegetation species with a sensor capable of hyperspectral resolution, positioned at close proximity to the canopy of interest, is often a first step necessary for understanding the basic species-specific reflectance patterns, and for quantifying the manner in which light interacts with the plants comprising particular communities. Spectral data over a P. australis canopy were collected during 22 field …
Evaluating Vegetation Response To Water Stress Using Close-Range And Satellite Remote Sensing, Sharmistha Swain
Evaluating Vegetation Response To Water Stress Using Close-Range And Satellite Remote Sensing, Sharmistha Swain
Department of Geography: Dissertations, Theses, and Student Research
Drought is a weather related natural disaster that occurs in virtually all climatic zones of the world. In the last century, almost all parts of the contiguous United States have experienced several prolonged drought events with considerable impacts on the agricultural economy and environment. With changing climates, the droughts are expected to be more severe, longer, and widespread in many parts of the world including sections of the United States. Understanding the response of vegetation to water stress using remote sensing technologies will enhance our ability to detect and monitor drought. This research evaluates the response of vegetation to drought-related …
Assessing Seasonal Features Of Tropical Forests Using Remote Sensing, Roberto Bonifaz-Alfonzo
Assessing Seasonal Features Of Tropical Forests Using Remote Sensing, Roberto Bonifaz-Alfonzo
Department of Geography: Dissertations, Theses, and Student Research
Tropical forests are key components of the biogeochemical cycles, complex in structure, diversity and dynamics, also, tropical regions have been deforested and modified by human activities particularly for agriculture. Understanding the inter-annual and intra-annual variation dynamics of tropical regions could give valuable information on temporal characteristics of ecosystems behavior which is important for mapping and monitoring. This dissertation assesses seasonal and inter-annual changes in the tropical land cover that may be related to changes in the natural environment and/or human activities. Research was focused on the Mayan forest located in southern Mexico and Northwest Guatemala, one of the northern-most important …