Social and Behavioral Sciences Commons^™

Spatio-Temporal Patterns Of Geomorphic Adjustment In Channelized Tributary Streams Of The Lower Hatchie River Basin, West Tennessee, Mary A. Boulton

Doctoral Dissertations

The processes involved in fluvial geomorphic adjustment to human-induced change are not well understood, despite an increasing and global prevalence of human disturbance to rivers. This doctoral dissertation research examines spatial and temporal patterns of geomorphic adjustment processes in three tributary streams of the Lower Hatchie River Basin, in west Tennessee, which are adjusting to historic land clearance and channelization. This dissertation examines (1) the types and spatial pattern of geomorphic adjustment processes in a total of 34 tributary reaches located in Richland, Jeffers, and Dry Creeks, (2) the applicability of an existing model of geomorphic adjustment for use in …

A Watershed Classification System Based On Headwater Catchments In Great Smoky Mountains National Park, Tennessee-North Carolina, Martin Dietrich Lafrenz

Doctoral Dissertations

Headwater areas in the southeastern U.S., as well as elsewhere, have received little attention from researchers, even though headwater catchments comprise over 70% of the land area in the southeastern highlands. The small, low-order streams that drain these catchments are greatly affected by hillslope processes within their watersheds. As such, there exists a strong link between upland landscape history and a headwater stream’s condition, including its channel morphology, habitat, and water quality. I employ this tight connection between landscape-scale attributes and reach-scale morphology in order to develop a headwater catchment classification system for Great Smoky Mountains National Park that describes …

Detecting And Mapping The Michigan Vegetation Tension Zone Using Ecological Indicators, Janice Marie Fulford

Masters Theses

Ecotones are areas of transition between adjacent ecosystems that exist at various geographic scales, and are useful in measuring climatic changes. Ecotones are defined by their length and breadth and the ability to detect and map an ecotone from a specific period in time would be useful in measuring current and future change.

The study focused on a 1880's vegetation ecotone in the center of Michigan's Lower Peninsula. This was achieved by deriving ecological variables from the U.S. public land survey's tree species data. These variables were then used to ascertain the length of the ecotone by finding the boundary …

A Model Of The Natural Spread Of The Invasive Insect Species Emerald Ash Borer In The Lower Peninsula Of Michigan, Jennifer L. Weller

Masters Theses

More than 8 million ash trees in southeast Michigan have been killed by an infestation of the invasive insect species emerald ash borer (EAB). Since its identification in July 2002, EAB has been found in Ontario (Canada), Ohio, Indiana, and across Michigan. To date, EAB research has concentrated on the entomological classification and no systematic prediction of the pest's diffusion has been made.

This research presents a predictive model for the spread of EAB across the Lower Peninsula of Michigan. Limited data on ash tree population distribution, ·. infestation distribution, and the dispersal rate of the emerald ash borer required …

Spatiotemporal Variations In The Fire Regimes Of Whitebark Pine (Pinus Albicaulis Engelm.) Forests, Western Montana, Usa, And Their Management Implications, Evan Reed Larson

Masters Theses

Whitebark pine (Pinus albicaulis) is a long-lived tree species that exists throughout high elevation forest communities of western North America. It is the foundation of a diminishing ecosystem that supports Clark’s nutcrackers, red squirrels, grizzly bears, and black bears. The decline of this species is directly related to mortality from widespread mountain pine beetle outbreaks and infestation by the invasive white pine blister rust, and may be exacerbated by fire suppression. Prescribed fire will be a primary management tool in efforts to preserve whitebark pine on the landscape. My research used dendrochronology to investigate the fire history of …

Historical Land Cover Impacts On Water Quality In The Provo River Watershed, 1975 - 2002, Fredric James Donaldson

Theses and Dissertations

The Provo River watershed has experienced land cover change over the past several decades. Land cover influences water quality inasmuch as land cover determines the type and quantity of non-point source (NPS) pollutants that may enter the water. This study examines the historical impacts of land cover changes on water quality in the Provo River using remote sensing and statistical analysis. Statistical correlations and linear regressions were used to study the relationship between various land cover types and water quality variables for six years between 1975 and 2002. This thesis supports research finding myriad impacts of urban land cover on …

An Assessment Of The Impacts Of Climate Change On The Upper Clackamas River Basin With A Distributed Hydrologic Model, David Graves

Dissertations and Theses

The Pacific Northwest is dependent on seasonal snowmelt for water resources that support a significant portion of its economy. Increased temperatures resulting from higher concentrations of atmospheric greenhouse gases may cause disruptions to these resources because of reductions in the annual snowpack and variations of the timing of snowmelt. This study reconstructs and applies a GIS-based distributed hydrologic model at a monthly scale to assess the effects of future climate change on runoff from the Upper Clackamas River Basin (located near Portland, Oregon). Historic flow data and snow measurements are used to calibrate and test the performance of the hydro …

Developing A Modular Hydrogeology Ontology Extending The Sweet Ontologies, Ajay Tripathi

Geosciences Theses

Application of ontologies in the environmental science will allow experts in this field to model their domain knowledge for more efficient exchange and reuse. This thesis presents a modular approach in reengineering existing upper-level ontologies to conceptualize specific domain knowledge. The aim of extending these upper-level ontologies is to tailor and transform the existing conceptual models into new ones designed for the use in a specific domain in the earth sciences. This thesis extends the upper-level Semantic Web for Earth and Environmental Terminology (SWEET)ontologies to develop ontologies for part of the hydrogeology domain. The existing SWEET ontologies are developed by …

Temporal Gis Design Of An Extended Time-Geographic Framework For Physical And Virtual Activities, Hongbo Yu

Doctoral Dissertations

Recent rapid developments of information and communication technologies (ICT) enable a virtual space, which allows people to conduct activities remotely through tele-presence rather than through conventional physical presence in physical space. ICT offer people additional freedom in space and time to carry out their activities; this freedom leads to changes in the spatio-temporal distributions of activities. Given that activities are the reasons for travel, these changes will impact transportation systems. Therefore, a better understanding of the spatial and temporal characteristics of human activities in today’s society will help researchers study the impact of ICT on transportation. Using an integrated space-time …

Environmental History At Laguna Yaguarú, Bolivia: Evidence From Pollen, Stable Carbon Isotopes, And An Embedded Mineral Facies, Zachary Paul Taylor

Masters Theses

Lowland eastern Bolivia is an important area for paleoenvironmental research because of its location near the climatically controlled boundary between the Amazon basin rain forest and the seasonally dry savannas to the south. I present a multiple proxy study from Laguna Yaguarú (15˚36’S, 63˚13’W, 195 m) a large (250 ha) lake located in the forest-savanna ecotone. A 2.4 m long core recovered in May 2003 spans approximately in the last 5000 years. Chronological control is based on excess 210Pb sedimentation in the uppermost sediments and three AMS dates on plant macrofossils in deeper sediments. I undertook pollen and microscopic charcoal …

Macroscopic Sedimentary Charcoal As A Proxy For Past Fire In Northwestern Costa Rica, Kyle James Schlachter

Masters Theses

Proxy records of fire history offer valuable information on the role fire plays in an ecosystem. Such information can be used to understand the inter-relationships among fire, humans, and the environment. In the past, the forests of Costa Rica were thought to have been spared from significant pre-Columbian forest disturbance; however, paleoecological studies have shown that this notion is false. While the long-term human influence is now recognized in Costa Rica, the nature and extent of human effects in different regions remain poorly documented. Knowledge of pre-Columbian land uses in Costa Rica increases our understanding of the possible impacts of …

Highway Interchanges, Transportation And Land Use: An Exploration Of Changes In Transportation Volumes And Land Use Factors Within Interchange Catchments, Matthew Hampton

Geography Masters Research Papers

Highway interchanges provide the interface for and moderate access to the surface street system and help control congestion. Understanding the relationship between land use and transportation near highway interchanges can help to direct resources where they are most needed to maintain the integrity of the adjacent road system. This paper characterizes and ranks highway interchange areas in the Portland, OR Metropolitan Planning Organization (MPO) area with respect to changes in traffic volume and determines what factors are associated with these impacts. This study compares the transportation, population and land use patterns around 78 highways and freeway interchanges over two time …

Ambivalent Landscapes: An Historical Geography Of Recreation And Tourism On Mount Hood, Oregon, Ryan Franklin Mitchell

Dissertations and Theses

Mount Hood is an Oregon icon. The mountain has as long and rich a history of recreation and tourism as almost any other place in the American West. But contemporary landscapes on Mount Hood reveal a recreation and tourism industry that has struggled to assert itself, and a distinct geographic divide is evident in the manner in which tourism has been developed. Why? In this study I chronicle the historical geography of recreation and tourism on Mount Hood. I examine the evolution of its character and pattern, and the ways in which various communities have used it to invest meaning …

Visualizing Complexity : A Spatial Analysis Of Decorative Geometric Pattern In The Islamic World, 900-1400 Ad, Tracy Elizabeth Harrison

Dissertations and Theses

This study explores how the use of complex decorative geometric patterns in Islamic architecture spatially relates to advances in the fields of science and philosophy in the Islamic world between the ninth and fourteenth centuries. This project examines hypotheses developed by vario~s scholars on the forces that shaped the use of these patterns (known as the geometric mode) in Islamic architecture. The prevailing assumption that advances in mathematics contributed to the use of the geometric mode is used as a starting point for subsequent analysis.

For this study, two spatial databases were created. One contains over two hundred and twenty …

Successful Superfund Site Restoration: A Case Study Of Independence Grove Forest Preserve, Linnea E. Hruska

Masters Theses

The United States Superfund program has been quite controversial since it was established under the Comprehensive Environmental Response, Compensation, and Liability Act in 1980. Several people feel that the enormous amounts of time and money invested in the Superfund program are not worthwhile because so many sites remain far from being cleaned up. Nevertheless, some successful site restorations have been achieved under this program. The Petersen Sand & Gravel site is one of these success stories. This thesis examines why the Petersen Sand & Gravel site was able to experience such success under the Superfund program by taking history, economics, …

Applications Of Integrated Data Viewer – Idv In An Introductory Meteorology Class For Non-Science Majors, Ricardo C. Nogueria

Masters Theses

Computer products developed to visualize and integrate meteorological products with real-time data can create a virtual reality of the atmosphere. These advanced technologies help educators to improve teaching techniques in the classroom for science and non-science majors and increase the students' interest in learning as well. One of these products, the Integrated Data Viewer (IDV), was recently developed by University Corporation for Atmospheric Research (UCAR) project, Unidata, to visualize and integrate geoscience data. This study compares students' performance in the laboratory sessions using IDV-based and MANUAL-based exercises. Comparison of lab scores with exam scores of questions on the same topic …

Ozone Damage Potential To Loblolly Pine Ecosystems In Metropolitan Atlanta, Georgia, Diane Marie Styers

Geosciences Theses

Atlanta is one of the largest metropolitan areas in the southeastern United States and is the only area in the region currently listed in “serious” 1-hour ozone nonattainment. Despite its exceedance history, impacts on Atlanta’s urban forests have not been the focus of any major studies. The purpose of this study was to examine air pollution damage to vegetation using a foliar-injury survey on Stone Mountain. The objectives of this project included 1) establishing that pollution transport from Atlanta to Stone Mountain occurs, 2) determining the magnitude of ozone concentrations near Stone Mountain and 3) assessing sensitive plant species on …

Continuous Late Pleistocene Paleoclimate Record From The Southwest African Margin: A Multi-Proxy Approach, Julia Keegan Shackford

Geosciences Theses

Late Pleistocene sediments recovered from ODP Leg 175, Site 1085 are used to generate a high-resolution (500 yr) record of continental climate change in Southern Africa. The location of Site 1085, the SW African continental slope, provides a continuous hemipelagic section with a significant terrigenous component. Terrigenous sediments are transported via fluvial and/or eolian transport mechanisms with MIS 1 being dominated by eolian transport. Analyses, including grain-size, color reflectance, biogenic sediment geochemistry (%CaCO3, %TOC, and C/N), bulk sediment geochemistry, and clay mineralogy, are used to identify continental climate conditions in southern Africa. Analyses indicate glacial/interglacial variation. Median grain-size peaks are …

Provenance And Depositional History Of Late Pleistocene New Jersey Shelf Sediments, Roxie Jessica Turner

Geosciences Theses

Pleistocene New Jersey shelf sedimentology is strongly influenced by glacially driven sea level changes. A combination of regressive shoreline processes, subaerial exposure, fluvial downcutting, and deposition and reworking during transgression has influenced the NJ shelf sediment composition. Sediment provenance and transport history may be determined on a shelf environment through analysis of grain size distribution, heavy mineral content, magnetic mineral concentrations, and isotopic dating methods. A combination of surface grab and stratigraphic samples were analyzed within the study area. Relatively high percentages of heavy minerals were found in the 2 phi and 3 phi size fractions and hornblende grains provided …

Adult Demographic Composition In The Poole-Rose Ossuary, Kirsten Marie Brown

Honors Theses

No abstract provided.

Forest Resource Use, Land-Use, And Ecotourism In The RíO PláTano Biosphere Reserve, Honduras, Christina Marie Friedle

Dissertations and Theses

The Río Pláttano Biosphere Reserve, a tropical rainforest reserve in the northeastern corner of Honduras, is home to several subsistence-based indigenous groups, including the Miskito, Pech and Garifuna, as well as the non-indigenous Ladinos. Communities within the reserve depend on forest resources, swidden agriculture, marine resources and/or small-scale ranching as the foundations for local economies. Regulations placed on these subsistence practices, after establishment of the biosphere reserve in 1980, have created unique and new pressures and resulted in a blend of traditional and innovative resource use. A notable result is the promotion of ecotourism as a solution for meeting the …

Hierarchies For Event-Based Modeling Of Geographic Phenomena, Rui Zhang

Electronic Theses and Dissertations

Modeling the dynamic aspect, or change, of geographic phenomena is essential to explain the evolution of geographic entities and predict their future. Event-based modelling, describing the occurrences rather than states of geographic phenomena, gives an explicit treatment of such change, but currently does not have the support of the mechanisms to enable the shifts among different granularities of events. To account for different tasks, a hierarchical representation of the event space at different granularities is needed.

This thesis presents an event-based model; a general framework for representing events based on precondition and postcondition using Allen's temporal interval logic. It captures …

The Transition To Neotraditionalism: The Case Of Huntersville, North Carolina, Kelley Ann Hall

Masters Theses

Troubled by the impacts associated with conventional development, the suburban community of Huntersville, North Carolina responded to metropolitan sprawl by adopting strict neotraditional development codes. Although a growing number of municipalities have begun to allow traditional neighborhood developments, few have completely reformed their zoning laws the way Huntersville did in the early 1990s. This thesis asked why Huntersville made the transition to neotraditionalism and what were the consequences of such a drastic step? A number of factors converged, including a rapid build-up of growth pressures and the timely arrival of new urbanist planning philosophies to spur Huntersville’s decision. Crucially, however, …

Assessing Water Quality Of The Davis Creek Watershed, Michigan Using Annagnps Model, Mustafa Rezaur Rahim

Masters Theses

The Davis Creek watershed is the most polluted tributaries of Kalamazoo River in Kalamazoo County, Michigan. This study applied continuous simulation AnnAGNPS model, developed by USDA ARS, to estimate sediment yield and nutrient loadings and simulate the effects of proposed land use scenarios on nonpoint source pollution in the Davis Creek Watershed. Daily climate data of 1998 to 2004, Digital Elevation Model, soil, land use, hydrography, and agricultural management information were used to derive the model input parameters. The model was run continuously for the period of 1998 through 2004. The simulated results showed that erosion and sediment loadings are …

Black River Watershed Management Plan, Erin M. Fuller

Masters Theses

The Black River Watershed encompassses 287 square miles in Allegan and Van Buren Counties in southwestern lower Michigan. The confluence of the North, Middle, and South branches is approximately 2.5 miles upstream of the City of South Haven, where the river empties into Lake Michigan. The Black River Watershed Management Plan was created with input from a variety of stakeholders, from local organizations to state agencies. Input from these stakeholders, field work, and previous water quality studies all helped determine water quality concerns in the Black River Watershed. Stakeholders input also was used to determine goals and objectives that would …

Effectiveness Of Wavelet Transform, Fractals, Lacunarity And Spatial Indices In Content-Based Image Retrieval, Sivagurunathan Chinniah

Masters Theses

The thesis demonstrates the feasibility of applying wavelet transforms, fractals, and spatial indices in content-based image retrieval (CBIR) of remotely sensed imagery. It consists of three major parts: the design and development of thick-client CBIR software, population of two samples of SPOT™ and Landsat 7 Enhanced Thematic Mapper Plus (ETM+) image databases with metadata describing their visual properties, and, exploration of the effectiveness of region quadtree query and retrieval by content using various combinations of indices. 272 SPOT™ and 507 Landsat 7 ETM+ 512 x 512 pixel panchromatic images of Atlanta, Georgia were subsetted from two scenes. Moran's I index …

Assessment Of Sediment And Nutrient Loadings In The Davis Creek Watershed, Southwestern Michigan Using The Swat Model, Peter Kibowen Kimosop

Masters Theses

The Davis Creek Watershed has been impaired for many years by nonpoint source pollution. A recent modeling research on the watershed simulated both nutrient and sediment movements for the single storm events. This study simulates the movement of sediments and nutrients (nitrogen and phosphorus) in the watershed continuously using the Soil and Water Assessment Tool (SWAT) for assessing water quality in the watershed. Multiple databases for climate, soil types, DEM, land use and agricultural management practices were used to derive inputs for the SWAT. Subsequently, the SWAT model was run for the period of 1998-2004. The simulated results show that …

Saginaw Chippewa Tribal Relations And The Social Production Of Space In Isabella County, Michigan, Bryan Thomas Swanson

Masters Theses

This thesis focuses on how the historical and cultural geography of the Saginaw Chippewa tribe of Mount Pleasant, Michigan and specifically on through their Soaring Eagle Casino reshaped the physical and cultural landscape of Isabella County. For this research I utilized documentary/archival evidence such as local histories, newspapers, plat maps and I also conducted field surveys. The research findings indicated that through the Soaring Eagle Casino the Saginaw Chippewa tribe has changed Isabella County, as well as their own social standing. Since 1993 the tribe has used casino revenues to purchase 1185 acres of land to add to the Isabella …

Map Interactivity: Exploring The Benefits In The Utah Studies Classroom, Whitney Fae Taylor

Theses and Dissertations

This thesis introduces map interactivity as a new learning resource for historical geography subjects. The purpose of the research is to examine the ability of interactive maps to improve the learning process in social studies classrooms in Utah's public schools. An interactive map and paper maps focused on Utah settlement and hypothetical geographical attractors were created for this research. A two-group experiment was conducted in six classes of Utah Studies; the experimental group used an interactive map, and the control group used a series of paper maps and corresponding tables. Students' conceptual knowledge was tested before and after they used …

Mystery Writers In Foreign Settings: The Literary Devices And Methods Used To Portray Foreign Geographies, Amy Kimball Engar

Theses and Dissertations

A sense of place is important to the construction, believability and success of regional mystery novels. Authentic representation of place is challenging if an author is not originally from the area being portrayed. Despite this, some authors are able to depict foreign places more comprehensively and realistically than others. Professor Gary Hausladen of the University of Nevada, Reno identifies: narrative description, dialogue, iconography, and attention to detail as the basic literary devices that convey sense of place. This thesis questions the manner in which successful mystery novelists writing about foreign places meet Hausladen's model. Specifically, do they use all four …