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2015

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Articles 451 - 480 of 505

Full-Text Articles in Geography

Examining The Effects Of Ecotourism In The Lashi Lake Wetlands, China, Caitlin K. Toner Jan 2015

Examining The Effects Of Ecotourism In The Lashi Lake Wetlands, China, Caitlin K. Toner

Geography Honors Projects

The rapid development of ecotourism in Asia encourages new strategies to simultaneously attract tourists and preserve natural environments in formerly isolated and underdeveloped regions. Since the introduction of China’s policy of an open economy in 1978, China has recognized the opportunity to promote tourism in order to foster economic development. Compared to China’s coastal cities, the inland provinces contain few industrial cities and transportation infrastructure. For economic development, inland provinces have taken advantage of their natural areas and ethnic minorities as a commodity to attract foreign and domestic tourists in their region. While the literature addressing ecotourism often focuses on …


Retelling Ebola's "Outbreak Narrative" Through Media Coverage Of The 2014 West African Epidemic, Anoushka Millear Jan 2015

Retelling Ebola's "Outbreak Narrative" Through Media Coverage Of The 2014 West African Epidemic, Anoushka Millear

Geography Honors Projects

The 2014 Ebola Virus Disease epidemic, unprecedented in magnitude, has been the focus of worldwide media attention. How does media coverage of the epidemic seize on anxieties of an interconnected world to reinforce longstanding perceptions of Africa as dangerous and chaotic? I compare this media coverage to the model Ebola "outbreak narrative," using critical discourse analysis to contextualize representations of Africa within an increasingly interconnected world. I argue that media coverage reproduces a constructed Western understanding of Africa that will persist long after the epidemic is brought under control.


Mobile Home Resident Perspectives On Preparedness, Protective Action, And Evacuation For Tornado Hazards, Kevin D. Ash Jan 2015

Mobile Home Resident Perspectives On Preparedness, Protective Action, And Evacuation For Tornado Hazards, Kevin D. Ash

Theses and Dissertations

More than 1,000 tornadoes strike the United States each year, and no population segment has been impacted to a greater degree than those who live in mobile homes. Despite being only about 7% of the total population, mobile home residents have comprised 40% to 50% of all tornado deaths over the past fifty years. Inhabitants of mobile homes must therefore act quickly to protect themselves when they are threatened by tornadoes. Warning messages instruct mobile home occupants to move to a sturdier building until the storm passes, but what are the residents’ perspectives on this recommended behavior? It is unknown …


Economic Losses And Extreme Tornado Events, Rachel Reeves Jan 2015

Economic Losses And Extreme Tornado Events, Rachel Reeves

Theses and Dissertations

Research on tornado impacts has previously focused mainly on analyzing the deaths and injuries associated with tornadoes. While economic loss from multiple hazards is a well-researched field, little has been done to assess the economic losses sustained during tornado events. Additionally, the literature regarding the Enhanced Fujita scale’s comparability to the Fujita scale is limited. This research aims to add to the literature by statistically analyzing the two tornado scales, determining the movement of tornadoes over time using a cluster analysis, comparing the location of extreme tornadoes to those which produce extreme loss, and looking at the statistical relationship between …


The Meaning Of Place Recovery On The Mississippi Gulf Coast, Ronald L. Schumann, Iii Jan 2015

The Meaning Of Place Recovery On The Mississippi Gulf Coast, Ronald L. Schumann, Iii

Theses and Dissertations

Recovery is a post-disaster period of adjustment when individuals, households, neighborhoods, and communities work to overcome the effects of a disaster and regain functionality. Recovery is a multi-scalar process whose outcomes are manifested in the physical landscape; however, assessments of the meaning, progress, and outcomes of recovery are specific to individuals who view the landscape from an embodied perspective within the local social hierarchy. Common recovery measurement techniques used by emergency managers, planners, local leaders, and hazards scholars approximate recovery with reconstruction of physical infrastructure or repopulation of residences. These longitudinal quantitative proxies may claim to represent the status of …


Institutional Resilience Along The Mississippi Gulf Coast In The Context Of Pre- And Post-Hurricane Katrina, Khai Hoan Nguyen Jan 2015

Institutional Resilience Along The Mississippi Gulf Coast In The Context Of Pre- And Post-Hurricane Katrina, Khai Hoan Nguyen

Theses and Dissertations

Building resilience to disasters helps reduce loss of life and property, allowing communities to recover more quickly from shocks and disruptions. Governing institutions are tasked with tremendous responsibility in terms of mitigating risks and enhancing resilience of local communities through proactive planning and policies. It is important to examine how institutional policies have changed pre- and post-disaster to determine their contribution to community resilience. Metrics and indicators can be used to quantitatively assess, establish baseline, track, and monitor resilience at the community level. Few studies have attempted to measure institutional resilience using a set of indicators and metrics, and even …


A Tale Of Two Landscapes: Examining Alienation And Non-Visitation Among Local African American Fishers At Congaree National Park, Janae Davis Jan 2015

A Tale Of Two Landscapes: Examining Alienation And Non-Visitation Among Local African American Fishers At Congaree National Park, Janae Davis

Theses and Dissertations

The Wilderness Act of 1964 limits acceptable activities in federally designated wilderness areas to those associated with leisure, scenic viewing, education and scientific inquiry. These stipulations, which privileged the interests of the early environmental movement’s elite white leaders and disregarded uses valued by racial/ethnic minorities and working class groups, continue to inform wilderness management in national parks. This legacy of exclusion is evidenced by national park visitation statistics showing overrepresentation1 of whites and underrepresentation of African Americans (Meeker, Woods, & Lucas, 1973; P. A. Taylor, Grandjean, & Gramann, 2011). The purpose of this study is to understand how wilderness management …


Institutional Adaptation And Drought Management In The Carolinas, Kirsten Lackstrom Jan 2015

Institutional Adaptation And Drought Management In The Carolinas, Kirsten Lackstrom

Theses and Dissertations

Drought is one of the costliest hazards faced by the United States, having caused billions of dollars in damage and affected all regions of the country over the past two decades. There have been many efforts to strengthen society’s technical and managerial capacity to respond to drought, mitigate risks, and adopt proactive planning and management strategies. Advances entail the adoption of drought plans, improvements to data collection and monitoring systems, and development of networks to disseminate information and foster communications. Despite recent progress, response remains reactive and crisis-oriented. Management is often uncoordinated across the multiple sectors and fragmented jurisdictions affected …


Tree-Sway Frequency And The Turbulent Co-Spectral Gap In A Dense Canopy Environment, Katherine L. Ertell Jan 2015

Tree-Sway Frequency And The Turbulent Co-Spectral Gap In A Dense Canopy Environment, Katherine L. Ertell

Theses and Dissertations

Today, knowledge of canopy turbulence comes solely from field observations. However, measurements or field observations that are taken at a specific location within the canopy cannot accurately capture the interaction of the wind and the canopy it crosses. Without this complete picture of the atmosphere, the temporal fluctuations that exist in turbulent flows cannot be understood. From an atmospheric perspective, the complex structure of forests significantly influences turbulence in the atmospheric boundary layers (ABL) by consistently imposing both mechanical and thermal forces. This study explores the temporal and spatial characteristics of tree-sway motions and their aerodynamic interactions with coherent turbulence …


Ammonium Concentrations Above A Louisiana Sugarcane Field, Wesley Robert Skeeter Jan 2015

Ammonium Concentrations Above A Louisiana Sugarcane Field, Wesley Robert Skeeter

Theses and Dissertations

High concentrations of ammonium (NH4+) aerosols can lead to acidification of soils, forest decline, and eutrophication of water ways (Aneja et al. 2003). NH4+ along with its precursor ammonia (NH3) forms a complicated gas aerosol system that is poorly understood and requires further research. Rotating annular denuder systems actively sampled NH4+ from the northern corner of a sugarcane field at 2.89 m and 5.18 m above the northern corner of a sugarcane field in St. Gabriel, Louisiana over 31 days and 31 nights between May 25th and July 27th of 2011. These data were used to calculate the average NH4+ …


Effects Of Temperature Stress On Coral Fluorescence And Reflectance, Andrea Gomez Jan 2015

Effects Of Temperature Stress On Coral Fluorescence And Reflectance, Andrea Gomez

Dissertations and Theses

Around the world, climate change, land-based pollution and fishing impacts are recognized as principal threats to coral reef ecosystems. Sea surface temperatures, in particular, are expected to change dramatically over the next decades and result in high coral mortality in some regions. Through controlled experiments, I examined changes in coral fluorescence and reflectance in response to water temperature alterations to assess the potential of employing these signatures as a diagnostic tool to measure coral health. At the NOAA Coral Culture and Collaborative Research Facility, I conducted controlled laboratory-based heat stress experiments on three Caribbean species of coral: Acropora cervicornis, Orbicella …


Intra- And Inter-Seasonal Variability Of Supra-Glacial 1 Streams And Lakes Over The West Greenland Ice Sheet 2 From High-Resolution Satellite Optical Data, Michael Gregory Brown Jan 2015

Intra- And Inter-Seasonal Variability Of Supra-Glacial 1 Streams And Lakes Over The West Greenland Ice Sheet 2 From High-Resolution Satellite Optical Data, Michael Gregory Brown

Dissertations and Theses

The Greenland ice sheet (GrIS) is one of the largest glacial ice masses on Earth, second only to the Antarctic ice sheet. The surface hydrology of the GrIS plays a crucial role on the surface energy and mass balance budgets of the ice sheet as a whole. Surface water, known as supra-glacial water, is seasonally found in the ablation zone and feeds the en-glacial and sub-glacial hydrological environments of the ice sheet. The spatial distribution of surface streams is poorly understood and their temporal variability is (to our knowledge) unknown. One of the reasons for the lack of knowledge on …


The Hazardous Effects Of Ship Scrapping And Recycling On Workers' Rights And The Environment, Maytee Gomez Salgueiro Jan 2015

The Hazardous Effects Of Ship Scrapping And Recycling On Workers' Rights And The Environment, Maytee Gomez Salgueiro

Dissertations and Theses

No abstract provided.


Exploration Of The Mtsat2 Satellite Capabilities For Real Time Detection And Characterization Of Volcanic Emissions, Nicholas R. Stewart Jan 2015

Exploration Of The Mtsat2 Satellite Capabilities For Real Time Detection And Characterization Of Volcanic Emissions, Nicholas R. Stewart

Dissertations, Master's Theses and Master's Reports - Open

In this report, we attempt to define the capabilities of the infrared satellite remote sensor, Multifunctional Transport Satellite-2 (MTSAT-2) (i.e. a geosynchronous instrument), in characterizing volcanic eruptive behavior in the highly active region of Indonesia. Sulfur dioxide data from NASA's Ozone Monitoring Instrument (OMI) (i.e. a polar orbiting instrument) are presented here for validation of the processes interpreted using the thermal infrared datasets. Data provided from two case studies are analyzed specifically for eruptive products producing large thermal anomalies (i.e. lava flows, lava domes, etc.), volcanic ash and SO2 clouds; three distinctly characteristic and abundant volcanic emissions. Two primary …


Object-Based Classification Of Earthquake Damage From High-Resolution Optical Imagery Using Machine Learning, James Bialas Jan 2015

Object-Based Classification Of Earthquake Damage From High-Resolution Optical Imagery Using Machine Learning, James Bialas

Dissertations, Master's Theses and Master's Reports - Open

Object-based approaches to the segmentation and supervised classification of remotely-sensed images yield more promising results compared to traditional pixel-based approaches. However, the development of an object-based approach presents challenges in terms of algorithm selection and parameter tuning. Subjective methods and trial and error are often used, but time consuming and yield less than optimal results. Objective methods are warranted, especially for rapid deployment in time sensitive applications such as earthquake induced damage assessment.

Our research takes a systematic approach to evaluating object-based image segmentation and machine learning algorithms for the classification of earthquake damage in remotely-sensed imagery using Trimble’s eCognition …


The History And Evolution Of North American Ski Resort Map Style And Design, Amy Elizabeth Lippus Jan 2015

The History And Evolution Of North American Ski Resort Map Style And Design, Amy Elizabeth Lippus

Graduate Student Theses, Dissertations, & Professional Papers

The first official ski resort in North America opened to the public in 1936 in Sun Valley, Idaho. Today, there are over 400 resorts across the continent in constant competition with one another for customers. Ski maps were first introduced as navigational tools, but quickly became a means for advertising what the resorts had to offer. The desire to outshine rival resorts has produced thousands of unique ski maps over the years, forming a collection of maps that has never been comprehensively analyzed until now. The first phase of the thesis involved the gathering of historical and modern ski maps …


Geog 140: Introduction To Human Geography—A Peer Review Of Teaching Project Inquiry Portfolio, Katherine Nashleanas Jan 2015

Geog 140: Introduction To Human Geography—A Peer Review Of Teaching Project Inquiry Portfolio, Katherine Nashleanas

UNL Faculty Course Portfolios

Large lecture classes of 100 students or more present unique challenges to both teaching and learning. The common method of “delivery” by instructors is lecture, often augmented by a set of Power Point slides; and, while the research literature shows that this is the more traditional way of teaching, increasingly it is becoming apparent that this method of instruction often does not reach students in the way we hope and often assume (Harvard Magazine 2015). Most of the students populating these classes are born of the Digital Age and have different expectations for learning, requiring new approaches in the classroom …


The San Antonio Wash: Addressing The Gap Between Claremont And Upland, Benjamin C. Hackenberger Jan 2015

The San Antonio Wash: Addressing The Gap Between Claremont And Upland, Benjamin C. Hackenberger

Pomona Senior Theses

Access to water from San Antonio Creek was critical in Claremont’s growth from a small stop on the Santa Fe Railroad to an agricultural powerhouse and an elite college town. While Claremont has sought to distinguish itself from surrounding communities since its founding in 1882, the innovative Pomona Valley Protective Association (PVPA) aligned Claremont with the City of Pomona and its other neighbors in a scheme to conserve the Creek’s resources at the turn of the century. Organized around the discovery of local confined aquifers and the development of a strategy to recharge them with water from the San Antonio …


A Migration Analysis Of Demographic Transitions In The Upper-Midwest From 2006-2010, Andrew Brick Jan 2015

A Migration Analysis Of Demographic Transitions In The Upper-Midwest From 2006-2010, Andrew Brick

All Graduate Theses, Dissertations, and Other Capstone Projects

Rural communities in the Upper-Midwest are essential for contributions to agriculture, oil and development of economic networks to larger towns and cities. Concerning rural population stability and transitions, this research study aims to discover complex migration flows by constructing specified groups of Upper-Midwest regions (i.e., Bakken oil, Taconite iron, high agriculture, developing area of rural depopulation and Interstate 94). Research questions on migrant distributions will be answered by investigating (in-) and (out-) flow data by demographic characteristics (e.g., age, gender and ethnicity) on a county-to-county level. By weighing total demographic populations, a more accurate representation of migration trends called Crude …


Identity, Heritage And Memorialization: The Toraja Tongkonan Of Indonesia, Kathleen M. Adams Jan 2015

Identity, Heritage And Memorialization: The Toraja Tongkonan Of Indonesia, Kathleen M. Adams

Anthropology: Faculty Publications and Other Works

No abstract provided.


Sacred And Mortuary Landscapes In Iron Age Cyprus: A Gis Analysis, James P. Torpy Jan 2015

Sacred And Mortuary Landscapes In Iron Age Cyprus: A Gis Analysis, James P. Torpy

Senior Independent Study Theses

During the Archaic period (750-480 BC) the island of Cyprus underwent a dramatic transformation as new city-kingdoms rose to dominate the political landscape of the island. This shift resulted in increased competition for resources, establishment of political boundaries, and emergence of a pronounced social hierarchy within the new polities. While many of the large settlements that became centers of power during this time have been thoroughly studied, the manifestation of the large scale changes of the Archaic in the periphery have not been as fully investigated. The rural site of Athienou-Malloura, surveyed and excavated by the Athienou Archaeological Project …


New Perspectives On An Iconic Landscape From Comparative International Long-Term Ecological Research, Evelyn E. Gaiser, Elizabeth P. Anderson, Edward Castañeda-Moya, Ligia Collado-Vides, James W.F. Ourqurean, Michael R. Heithaus, Rudolf Jaffé, David Lagomasino, Nicholas J. Oehm, Rene M. Price, Victor H. Rivera-Monroy, Rinku Roy Chowdhury, Tiffany G. Troxler Jan 2015

New Perspectives On An Iconic Landscape From Comparative International Long-Term Ecological Research, Evelyn E. Gaiser, Elizabeth P. Anderson, Edward Castañeda-Moya, Ligia Collado-Vides, James W.F. Ourqurean, Michael R. Heithaus, Rudolf Jaffé, David Lagomasino, Nicholas J. Oehm, Rene M. Price, Victor H. Rivera-Monroy, Rinku Roy Chowdhury, Tiffany G. Troxler

Geography

Iconic ecosystems like the Florida Coastal Everglades can serve as sentinels of environmental change from local to global scales. This characteristic can help inform general theory about how and why ecosystems transform, particularly if distinctive ecosystem properties are studied over long time scales and compared to those of similar ecosystems elsewhere. Here we review the ways in which long-term, comparative, international research has provided perspectives on iconic features of the Everglades that have, in turn, informed general ecosystem paradigms. Studies in other comparable wetlands from the Caribbean to Australia have shed light on distinctive and puzzling aspects such as the …


Preface: Climate Extremes And Biogeochemical Cycles In The Terrestrial Biosphere: Impacts And Feedbacks Across Scales, M. Bahn, M. Reichstein, K. Guan, J. M. Moreno, Christopher A. Williams Jan 2015

Preface: Climate Extremes And Biogeochemical Cycles In The Terrestrial Biosphere: Impacts And Feedbacks Across Scales, M. Bahn, M. Reichstein, K. Guan, J. M. Moreno, Christopher A. Williams

Geography

No abstract provided.


Mapping Cropland In Smallholder-Dominated Savannas: Integrating Remote Sensing Techniques And Probabilistic Modeling, Sean Sweeney, Tatyana Ruseva, Lyndon Estes, Tom Evans Jan 2015

Mapping Cropland In Smallholder-Dominated Savannas: Integrating Remote Sensing Techniques And Probabilistic Modeling, Sean Sweeney, Tatyana Ruseva, Lyndon Estes, Tom Evans

Geography

Traditional smallholder farming systems dominate the savanna range countries of sub-Saharan Africa and provide the foundation for the region's food security. Despite continued expansion of smallholder farming into the surrounding savanna landscapes, food insecurity in the region persists. Central to the monitoring of food security in these countries, and to understanding the processes behind it, are reliable, high-quality datasets of cultivated land. Remote sensing has been frequently used for this purpose but distinguishing crops under certain stages of growth from savanna woodlands has remained a major challenge. Yet, crop production in dryland ecosystems is most vulnerable to seasonal climate variability, …


Geography Standard Posters: Places And Regions, Center For Spatial Analysis And Research. Portland State University Jan 2015

Geography Standard Posters: Places And Regions, Center For Spatial Analysis And Research. Portland State University

Instructional Materials

The poster looks at the physical and human characteristics of place, how people create regions, and the culture influences people's perceptions.


Geography Standard Posters: The World In Spatial Terms, Center For Spatial Analysis And Research. Portland State University Jan 2015

Geography Standard Posters: The World In Spatial Terms, Center For Spatial Analysis And Research. Portland State University

Instructional Materials

The poster looks at how to use maps, using mental maps, and how to analyze spatial organization.


Quantifying The Interaction Of Wildlife And Roads: A Habitat And Movement Approach, Rebecca Whitehead Loraamm Jan 2015

Quantifying The Interaction Of Wildlife And Roads: A Habitat And Movement Approach, Rebecca Whitehead Loraamm

USF Tampa Graduate Theses and Dissertations

There is a growing need to address the effects of roadway presence on wildlife. Not only do roads directly impact gene dispersal from a movement perspective, but they limit movement of the individual animal from a habitat perspective by presenting an artificial barrier between one area of viable habitat and another. For this reason it is becoming increasingly important to quantify contact between humans and wildlife and to develop better methods for mitigating these types of conflicts. Studying habitat connectivity and animal mobility in the context of roads can provide actionable information on how, where, and when these encounters might …


Throughfall Nutrients In A Degraded Indigenous Fagus Orientalis Forest And A Picea Abies Plantation In The Of North Of Iran, Parisa Abbasian, Pedram Attarod, Seyed Mohammad Moein Sadeghi, John T. Van Stan, Seyed M. Hojjati Jan 2015

Throughfall Nutrients In A Degraded Indigenous Fagus Orientalis Forest And A Picea Abies Plantation In The Of North Of Iran, Parisa Abbasian, Pedram Attarod, Seyed Mohammad Moein Sadeghi, John T. Van Stan, Seyed M. Hojjati

Earth, Environment & Sustainability: Faculty Publications

Aim of study: The objective of this study was to compare the quantity and quality of TF (throughfall) in an indigenous, but degraded, stand of Fagus orientalis and Picea abies plantation.

Area of study: Forests of Kelar-Dasht region located in Mazandaran province, northern Iran.

Material and Methods: TF measured by twenty collectors that were distributed randomly underneath each stand. For 21 storms sampled in 2012 (August-December) and 2013 (April-June), we analyzed pH, EC, Ca2+, Mg2+, K+, NO3-, and P of gross rainfall (GR) and TF.

Main results: Cumulative interception (I) for F. orientalis and P. abies were 114.2 mm and …


Spatial And Temporal Patterns (1973-2012) Of Bushfire In An Arid To Semi-Arid Region Of Western Australia, Megan Ladbrook Jan 2015

Spatial And Temporal Patterns (1973-2012) Of Bushfire In An Arid To Semi-Arid Region Of Western Australia, Megan Ladbrook

Theses: Doctorates and Masters

Aim and background

The aim of this study was to reconstruct fire regimes/history of an extensive arid to semi-arid region of Western Australia for the last 40 years by studying temporal and spatial fire scar patterns using remote sensing in a Geographic Information System environment.

Methods

A fire history database was constructed, for the years 1973-2012 of an area of Western Australia between the Murchison and Minilya Rivers, of all bushfires greater than 1 ha that were visible from Landsat satellite imagery ranging from 30 – 60m ground resolution. The data was analysed to characterise a general bushfire regime for …


A Research Framework For The Geographic Study Of Exotic Pet Mammals In The Usa, Gabrielle C. Tegeder Jan 2015

A Research Framework For The Geographic Study Of Exotic Pet Mammals In The Usa, Gabrielle C. Tegeder

Department of Geography: Dissertations, Theses, and Student Research

Exotic animals are not well-represented in geographic studies, even in the emerging sub-field of animal geography. With the dearth of exotic animal studies, and the relevance of exotic pets in the public consciousness and in the news, a basic, introductory study such as this is necessary to begin examining the myriad ways in which exotic pets intersect with, and have influence in, both the site and situation of modern human-oriented environments.

Exotic pet attack incidents and both state and federal laws regarding the private ownership of exotic mammals as pets were examined in detail within the scope of this research. …