Geography Commons^™

Biomass Estimation And Classification Of Secondary Succession Using Radar And Optical Remote Sensing Data Based On Textural And Spectral Analysis In Amazonia, Ping Jiang

All-Inclusive List of Electronic Theses and Dissertations

Deforestation that happened during past decades in the Amazon Basin has been potentially affecting the global climate and carbon-cycle by contributing a vast amount of carbon into the atmosphere. Above-ground biomass (AGB) estimation of secondary successional and mature forests using remote sensing technology has been attracting scientists' attention. Optical sensor data are sensitive to forest canopies only, and therefore have limitations in AGB estimation, especially for tropical forests with complex structures and abundant species. Radar signals have the ability to penetrate canopies to detect the sub-layers of forests, and therefore potentially have a better performance in AGB estimation. Based on …

A Statistical Analysis Of The Distribution Of Roads Salt In Blueberry Farm Soils Of Van Buren County, Michigan, Melissa M. Kovach

Masters Theses

The purpose of this research is to compare and analyze the leaching of road salt (sodium chloride) in soils of blueberry farms. Due to recent events in Ottawa County, Michigan, road salt is increasingly being blamed for blueberry production loss. Sodium chloride is harmful because once a significant amount of salt enters the soil profile the salt is unable to be flushed out, and reduces the chance for nutrients to reach the plant for effective growth. This study tested the farms' soils for salinity before winter (October 2005), during winter (March 2006) and after winter (May 2006) to determine if …

Understanding User Perceptions On Usefulness And Usability Of An Integrated Wiki-G-Portal, Yin-Leng Theng, Yuanyuan Li, Ee Peng Lim, Zhe Wang, Dion Hoe-Lian Goh, Chew-Hung Chang, Kalyani Chatterjea, Jun Zhang

Research Collection School Of Computing and Information Systems

This paper describes a pilot study on Wiki-G-Portal, a project integrating Wikipedia, an online encyclopedia, into G-Portal, a Web-based digital library, of geography resources. Initial findings from the pilot study seemed to suggest positive perceptions on usefulness and usability of Wiki-G-Portal, as well as subjects' attitude and intention to use.

Optimal Band Selection For Hyperspectral Remote Sensing Of Aquatic Benthic Features - A Wavelet Filter Window Approach, Charles R. Bostater

Ocean Engineering and Marine Sciences Faculty Publications

This paper describes a wavelet based approach to derivative spectroscopy. The approach is utilized to select, through optimization, optimal channels or bands to use as derivative based remote sensing algorithms. The approach is applied to airborne and modeled or synthetic reflectance signatures of environmental media and features or objects within such media, such as benthic submerged vegetation canopies. The technique can also applied to selected pixels identified within a hyperspectral image cube obtained from an board an airborne, ground based, or subsurface mobile imaging system. This wavelet based image processing technique is an extremely fast numerical method to conduct higher …

Spatial Confidentiality And Gis: Re-Engineering Mortality Locations From Published Maps About Hurricane Katrina, Andrew J. Curtis, Jacqueline W. Mills, Michael Leitner

Faculty Publications

Background: Geographic Information System (GIS) can provide valuable insight into patterns of human activity. Online spatial display applications, such as Google Earth, can democratise this information by disseminating it to the general public. Although this is a generally positive advance for society, there is a legitimate concern involving the disclosure of confidential information through spatial display. Although guidelines exist for aggregated data, little has been written concerning the display of point level information. The concern is that a map containing points representing cases of cancer or an infectious disease, could be re-engineered back to identify an actual residence. This is …

Sensor Motion Control & Mobile Platforms For Aquatic Remote Sensing, Charles R. Bostater

Ocean Engineering and Marine Sciences Faculty Publications

Modern remote sensing systems used in repetitive environmental monitoring and surveillance applications are used on various platforms. These platforms can be categorized as stationary (fixed) or moving platforms. The sensing systems monitor the ambient environment which also may have inherent motion, such as the water surface with water waves. This is particularly the case for airborne or ship borne sensing of aquatic environments and is true for ground based walking or crawling systems. The time sequential comparison and spatial registration of sensor images, particularly "hyperspectral imagery" requires pixel to pixel registration for science based change and target (or medium) detection …

A Pixel To Pixel Hyperspectral Synthetic Image Model Inter-Comparison Study, Charles R. Bostater, Luce Bassetti

Ocean Engineering and Marine Sciences Faculty Publications

The purpose of this paper is to present simulation results comparing e a Monte Carlo Hyperspectral Simulation Model (MCHSIM) which generates synthetic images with realistic water wave surface to an iterative layered radiative transfer model used to generate hyperspectral synthetic images with realistic water wave surfaces. The Monte Carlo model is divided into 5 steps: (1) generation of the photons, (2) tracking of the photon optical path and simultaneously (3) recording of the photon's location within the water column, (4) a tabulation of the photon location or positions, and conversion to meaningful radiometric quantities and (5) a calculation and processing …

Environmental Equity Is Child's Play: Mapping Public Provision Of Recreation Opportunities In Urban Neighbourhoods, Jason Gilliland, Martin Holmes, Jennifer D. Irwin, Patricia Tucker

Geography & Environment Publications

This paper examines the spatial distribution of recreational opportunities for children and youth in a mid-sized Canadian city (London, Ontario), in relation to the socioeconomic status of neighbourhoods and estimated local need for publicly provided recreation spaces. Public recreation facilities (N = 537) throughout the city were identified, mapped and analysed in a geographic information system. To explore potential socio-environmental inequities, neighbourhoods (N = 22) were characterized by socioeconomic and environmental variables, an index of neighbourhood social distress, a neighbourhood play space needs index, and measures of the prevalence and density of recreational opportunities. The results of the …

Grey Suit Or Brown Carhartt: Narrative Transition, Relocation, And Reorientation In The Lives Of Corporate Refugees, Brian Hoey

Sociology and Anthropology Faculty Research

This article examines relocation stories of people who leave behind corporate work culture, relocate from metropolitan areas to small towns and rural places, and attempt to reorient themselves to work and family obligations. Decisions to start over take place within the context of moral questions about what makes a life worth living and what does not through a process in which geography has a bearing. For these migrants, a choice about where to live is also one about how to live. Choices of how to live one's life are made of more than simple economics, they are also moral. The …

Evaluating The Long-Term Metacommunity Dynamics Of Tree Hole Mosquitoes, Alicia M. Ellis, L. Philip Lounibos, Marcel Holyoak

Dartmouth Scholarship

Four different conceptual models of metacommunities have been proposed, termed “patch dynamics,” “species sorting,” “mass effect,” and “neutral.” These models simplify thinking about metacommunities and improve our understanding of the role of spatial dynamics both in structuring communities and in determining local and regional diversity. We tested whether mosquito communities inhabiting water-filled tree holes in southeastern Florida, USA, displayed any of the characteristics and dynamics predicted by the four models. The densities of the five most common species in 3–8 tree holes were monitored every two weeks during 1978–2003. We tested relationships between habitat variables and species densities, spatial synchrony, …

The Development Of Social And Cultural Geographies In Taiwan: Knowledge Production And Social Relevance, Hsin-Ling Wu, Sue-Ching Jou, Lily Kong

Research Collection School of Social Sciences

Social and cultural geographies have long occupied a marginal position in Taiwan's scholarship in the humanities and social sciences. Despite the influence of the so-called ‘cultural turn’ that has characterized much of Anglo-American scholarship since the 1990s (Barnett 1998), Taiwan's scholarship in the social sciences in general and human geography more specifically has remained relatively untouched by these intellectual currents till very recent years. This paper seeks to examine the social, intellectual and institutional contexts that explain this marginalization, and consider the possibilities for social and cultural geographies' emergence from marginality in Taiwan in the future. This possibility is considered …

The Bloomberg Way: Development Politics, Urban Ideology, And Class Transformation In Contemporary New York City, Julian Brash

Dissertations, Theses, and Capstone Projects

This dissertation explores the links between a development project, a particular urban ideology, and processes of class transformation in contemporary New York City. The city's postindustrial transformation, especially since the 1970s fiscal crisis, has created a newly dominant corporate elite consisting of executives and high-level professionals. This ruling class alliance has begun to supersede the city's older, real estate-centered traditional growth coalition, as emblematized by the political rise of billionaire ex-CEO Michael Bloomberg. Mayor Bloomberg, along with other ex-corporate executives in his administration, implemented a private-sector inspired corporate, technocratic, and antipolitical approach to governance in general and urban and economic …

Implementation Of A Ground Truth Process For Development Of A Submerged Aquatic Vegetation (Sav) Mapping Protocol Using Hyperspectral Imagery, Carlton R. Hall, Charles R. Bostater, Robert W. Virnstein

Ocean Engineering and Marine Sciences Faculty Publications

Protocol development for science based mapping of submerged aquatic vegetation (SAV) requires comprehensive ground truth data describing the full range of variability observed in the target. The Indian River Lagoon, Florida, extends along 250 km of the east central Florida coast adjacent to the Atlantic Ocean. The lagoon crosses the transition zone between the Caribbean and Carolinian zoogeographic provinces making it highly diverse. For large scale mapping and management of SAV four common and three uncommon species of seagrass (Tracheophyta) and three broad groups of macroalgae; red algae (Rhodophyta), green algae (Chlorophyta), and brown algae (Phaeophyta) are recognized. Based on …

Dynamics And Control Of Tethered Satellite Formations For The Purpose Of Space-Based Remote Sensing, Kurt A. Vogel

Theses and Dissertations

This dissertation assesses the utility of tethered satellite formations for the space-based remote sensing mission. Energy dissipation is found to have an adverse effect on foundational rigid body (Likins-Pringle) equilibria. It is shown that a continuously earth-facing equilibrium condition for a fixed-length tethered system does not exist since the spin rate required for the proper precession would not be high enough to maintain tether tension. The range of required spin rates for steady-spin motion is numerically defined here, but none of these conditions can meet the continuously earth-facing criteria. Of particular note is the discovery that applying certain rigid body …

Research On Synthetic Rope And Its Future In Timber Harvesting, Joel N. Hartter, Jared Leonard, John Garland, Steve Pilkerton

Geography

Steel wire rope is used for many logging applications. It has served the industry well in terms of strength, durability, and longevity. However, steel wire rope is difficult to use because it is stiff, heavy, and unyielding. These characteristics can lead to fatigue and exhaustion, and may contribute to worker injuries. Ultra-high molecular weight polyethylene synthetic rope has the potential to replace steel wire rope for selected logging applications. Research shows ergonomic gains and other operational effectiveness with its use. This paper presents research results, potentials, and issues in improving economic and ergonomic performance of ground-based and cable logging. Potential …

Sustainability With Globalization: An Unsustainable Proposition, Daniel B. Reader

Masters Theses & Specialist Projects

Globalization is recognized as a world-encompassing phenomenon, even as its benefits are debated. Sustainability, the capacity to maintain high standards of living through generations, is at stake. This paper examines the problems of sustainability with globalization from several perspectives. High statistical correlation between indices of globalization and environmental degradation (r2 = 0.977, p < .001) is found using multi-dimensional scaling software. The socially destabilizing, culture flattening effects of globalization are examined, and the terms ‘nationalism’ and ‘terrorism’ are defined. On the basis of its medial position among the indices of both globalization and environmental degradation, Chile is explored in a case study of the interaction. Conclusions regarding Chile’s vulnerabilities are reached, and the country’s environmental, social, and economic ‘weak spots’ are identified. The ethical positions of globalization and sustainability are considered, and the conclusion that there is very little that can be done to alter the nature of the interaction is drawn. It is suggested that globalization minimizes the prospects of success in efforts toward sustainability by maximizing vulnerabilities among sustainability’s components.

The Impact Of A One-Half Day Environmental Education Program On Elementary Students, David C. Pagel

Masters Theses

The hypothesis of this research is that elementary students benefit from the Kalamazoo Nature Center's (KNC) one-half day inquiry program, based upon data collected using a Likert scale instrument. The earth science inquiry program at KNC is intended to enhance student attitude about the natural environment. There are two primary components to the research. First, data were collected through a pre-/post-survey from elementary students who participated in the Kalamazoo Nature Center's one half-day environmental education program. The survey was based on the Test of Science Related Attitudes (Fraser, 1981). Second, data were analyzed to assess student attitudes and beliefs before …

The Olde Town Of Segovia And Its Aqueduct: Preservation And Tourist Management, Rose Ann Switt

Masters Theses

The city of Segovia, Spain is known for its Acueducto (Aqueduct), the Alcazar Castle, its Catedral (Cathedral), la Casa de la Moneda de Segovia (the House of Money of Segovia), and over 60 additional historical buildings, monuments, and protected vistas. This abundance qualified the city for designation in 1986 as a World Heritage site under guidelines established by the United Nations Education and Scientific and Cultural Organization (UNESCO). World Heritage Site status is coveted by city and regions around the world, but little research conducted in Spain has been recorded in English to determine if receiving this status actually affects …

Growing Up With Glen, Kathryn Miles

Reconstruction: Studies in Contemporary Culture

Ecologists refer to it as 'shifting baselines.' Anthropologists call it 'environmental generational amnesia.' Both refer to the slow change in the ways we respond to and define the environment. As biologists and social scientists have deftly argued, definitions of environmentalism and sustainable resource use are often based on our earliest experiences with nature. We then use these memories as the basis for our understanding of the natural world and its use. Ultimately, this creates a generational approach to issues of conservation, particularly with regards to such contentious issues as water rights and the changing face of the American West. At …

Los Terrores De La Hipervigilancia: Seguridad Y Nuevas Espacialidades De La Niñez, Cindi Katz

Publications and Research

A partir de estudios anteriores que vincularon las geografías de los niños y las niñas con un análisis de los efectos de la reestructuración de la economía global en la reproducción social, este artículo examina las nuevas espacialidades de la niñez en Estados Unidos. Sostengo que los espacios contemporáneos de la infancia, en todas las escalas, desde las del cuerpo hasta las globales, han transigido frente a la seguridad y al avance de la privatización. Recurro al lenguaje del «terror» para indagar estos efectos y sus consecuencias en la vida cotidiana de los niños y las niñas en un entorno …

Once Upon The North Pole, Regina Anne Roselli

Dissertations and Theses

The North Pole can be imagined in two ways. The first, the Magnetic North Pole, is based on the Earth's magnetic field, which is in constant flux. It is a general area of the Arctic that isn't affixed to a specific geographic location but moves to where the lines of magnetic force enter and exit the earth vertically. The second, the true North Pole, refers to its actual physical and fixed geographic location, 90° N. It lays below miles of the Arctic Ocean's water, hundreds of miles from the nearest land.

The North Pole has fueled man's imagination for centuries. …

Keeping An Eye On Privacy Issues With Geospatial Data [4], Andrew Curtis, Jacqueline W. Mills, Michael Leitner

Faculty Publications

No abstract provided.

An Interim Report Of The Viking Age Archaeofauna From Hrísheimar, Mývatn District, N Iceland, Thomas H. Mcgovern, Sophia Perdikaris, Ramona Harrison, Konrad Smiarowski, Norie Manigault

School of Global Integrative Studies: Faculty Publications

The excavations at Hrísheimar in Mývatnssveit in N Iceland are producing a very large archaeofauna, which can now be dated through both radiocarbon and two major volcanic tephra layers (the Landnám tephra of ca AD 871 and the Veiðivötn 930 tephra). While much of the site has been destroyed by wind erosion, substantial midden deposits (which overly earlier structures in some cases) still remain along the NE edge of the site area. While excavation is ongoing and only a small portion of the very substantial archaeofauna has been analyzed so far, it may be useful to present an interim working …

People, Pixels, & Weights: Some Novel Applications Of Remote Sensing And Geographically Weighted Regression For Evansville, Indiana, Eric W. Lafary

All-Inclusive List of Electronic Theses and Dissertations

The exploration of urban-environmental changes and how those transformations co-vary with observed socio-economic realities is currently a major research initiative in geography. To that end, this thesis develops an urban-environmental assessment regime that examines how environmental change co-varies with observed socio-economic conditions. Research has demonstrated existing linkages between observed conditions in regard to socio-economic status (SES) and a particular greenness index, as represented by, normal difference vegetation index (NDVI). However, a gap within the literature has been identified concerning the current methodologies that propose to predict SES using remotely sensed data. Therefore, this thesis addresses this gap within the related …

Bosnia And The Failure Of The New World Order, David Robbie

Renée Crown University Honors Thesis Projects - All

2 Abstract This paper attempts to prove that the United States failed to fulfill its international legislative obligations – namely the Convention on the Prevention and Punishment of the Crime of Genocide – in the conflicts that occurred in the disintegrating state of Yugoslavia during the early 1990s. By doing this, the paper also attempts to discredit the idea promulgated by the first Bush administration that following the Gulf War and the end of the Cold War in 1991 there had emerged a “New World Order” which would combat the dark side of human nature and ensure that human rights …

Bias In Severe Thunderstorm And Tornado Warnings Issued By The National Weather Service In The Doppler Radar Era: A Spatial-Temporal Evaluation, Gary S. Votaw

Theses and Dissertations

A climatology of severe thunderstorm (damaging wind and/or hail) and tornadoes in the United States has established the location of the areas of highest frequency of occurrence. This climatology was attained through analysis of a basic data source, that of observed events, which carries many associated biases. Among these biases is the requirement that someone be on hand to witness the event no matter what time of the day or night, the assumption that the observer had sufficient visibility to see the event clearly, and whether there was something available on location to damage. In this study I use an …

Repopulation As Revitalization? Condominiums In St.Paul And Minneapolis, Minnesota, Fay L. Cleaveland

Geography Honors Projects

Condominium development in downtown business districts has boomed in the last ten years, increasing the size and density of urban neighborhood populations. The design of condos and their immediate surroundings can affect how residents will use these spaces and the quality of life experienced by neighborhood inhabitants. This research applies the design principles of Jane Jacobs and the Congress for the New Urbanism to four condominium developments in St. Paul and Minneapolis, Minnesota, to determine their impact on neighborhood livability in downtowns. I conclude with an analysis of their effectiveness as downtown revitalization tools and policy suggestions for future condominium …

Intersecting Global And Local: Spatial Analysis Of Ethnicities Of Asian Businesses In The Minneapolis-Saint Paul Metro Area, Grace Emiko Guthe

Geography Honors Projects

The changing nature of immigration to the United States and changes in the morphology of American cities challenge traditional theories of ethnic entrepreneurship as a means of success in assimilating into American society. This study, based on data of over 800 businesses in the Minneapolis-Saint Paul area, finds that specific Asian ethnic groups demonstrate distinctive patterns, which often do not conform to traditional theories of ethnic entrepreneurship. Instead, other concepts, such as heterolocalism and transnationalism, add to the discussion concerning a new role for modern ethnic entrepreneurs. This new role must examine ethnic businesses as localities of transnationalism in a …

Food Security In Urban America: A Model Based On Minneapolis-St. Paul, Minnesota, Joel Larson

Geography Honors Projects

Food security, through access and availability, has become a pressing issue in many fields of academia. Until the mid-1990s, research within the United States has been hampered by ill-defined concepts and a subsequent inability for social scientists to contribute to policy on the issues. My research attempts to contribute to the limited body of developed-world food security research by applying a Geographic Information Systems model to Minneapolis and St. Paul, predicting high risk of food insecurity in urban areas. Taking into account factors such as income, ethnicity, and family status, this model finds that it is not the central city …

Spatial Analysis Of Nitrate Contamination Of Groundwater In Dodge County, Wisconsin, Jacob Andrew Maas

Masters Theses

The purpose of this research was to identify the primary variables that lead to high nitrate levels in Dodge County, Wisconsin. Trend surface analysis was used to identify which land use/land cover and aquifer characteristics are responsible for increased nitrate levels. A kriging model with residuals from the trend surface analysis, were then applied to estimate the spatial distribution of nitrate levels in the entire study area. Cross-validation was conducted to assess the uncertainty of the kriging model in the analysis.

The result from the trend surface analysis showed that, soil depth to bedrock, agriculture, urban, barren and shrub land, …