Digital Commons Network^™

Change And Persistence In Land Surface Phenologies Of The Don And Dnieper River Basins, V. Kovalskyy, G. M. Henebry

Natural Resource Management Faculty Publications

The formal collapse of the Soviet Union at the end of 1991 produced major socio-economic and institutional dislocations across the agricultural sector. The picture of broad scale patterns produced by these transformations continues to be discovered. We examine here the patterns of land surface phenology (LSP) within two key river basins—Don and Dnieper—using AVHRR (Advanced Very High Resolution Radiometer) data from 1982 to 2000 and MODIS (Moderate Resolution Imaging Spectroradiometer) data from 2001 to 2007. We report on the temporal persistence and change of LSPs as summarized by seasonal integration of NDVI (normalized difference vegetation index) time series using accumulated …

Dual Scale Trend Analysis Distinguishes Climatic From Anthropogenic Effects On The Vegetated Land Surface, K. M. De Beurs, C. K. Wright, G. M. Henebry

Natural Resource Management Faculty Publications

We present a dual scale trend analysis for characterizing and comparing two contrasting areas of change in Russia and Kazakhstan that lie less than 800 km apart. We selected a global NASA MODIS (moderate resolution imaging spectroradiometer) product (MCD43C4 and MCD43A4) at a 0.05◦ (∼5.6 km) and 500 m spatial resolution and a 16-day temporal resolution from 2000 to 2008. We applied a refinement of the seasonal Kendall trend method to the normalized difference vegetation index (NDVI) image series at both scales. We only incorporated composites during the vegetative growing season which was delineated by start of season and end …

A Study Of The East African Slave Trade In Bagamoyo, Jake Salyers

Independent Study Project (ISP) Collection

The purpose of my study was to learn about the east African Slave trade and its relationship to the town of Bagamoyo. Bagamoyo was an important trading town on the coast of Tanzania during the peak of the Arab run slave and ivory trade. Slavery was only abolished in Tanganyika in 1922, so there are still many monuments and memories remaining in the town concerning the slave trade. I had two main methods of collecting information about the town, interviewing the descendants of slaves and slave owners and researching the history of Bagamoyo. I was able to get three different …

American Treasures (Exhibit Guide), Osher Map Library And Smith Center For Cartographic Education

Osher Map Library Miscellaneous Publications

American Treasures (Exhibit Guide). October 18, 2009 to August 21, 2010

Maps offer such compelling insights into the past that anyone, regardless of age or educational level, can enjoy and learn from them. To celebrate OML's renovation and expansion, this exhibition explores the library’s rich and varied collections and its mission to preserve those collections and make them accessible.

Curated by Matthew Edney.

Norumbega News, No.13 (Fall 2009), Osher Library Associates

Friends of OML, Occasional Publications

Issue No.13, Fall 2009

Osher Map Library and the Smith Center for Cartographic Education

Portland, Maine

Long-Term Agricultural Land-Use Trends In Nebraska, 1866–2007, Tim L. Hiller, Larkin A. Powell, Tim D. Mccoy, Jeffrey J. Lusk

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Although landscape changes from anthropogenic causes occur at much faster rates than those from natural processes (e.g., geological, vegetation succession), human perception of such changes is often subjective, inaccurate, or nonexistent. Given the large-scale land-use changes that have occurred throughout the Great Plains, the potential impacts of land-use changes on ecological systems, and the insight gained from knowledge of land-use trends (e.g., to compare to wildlife population trends), we synthesized information related to land-use trends in Nebraska during 1866–2007. We discussed and interpreted known and potential causes of short- and long-term land-use trends based on agricultural and weather data; farm …

Modeling The Influence Of Water Waves Upon Remote Sensing Imagery: The Underwater Radiance Distribution And Shape Factors, Charles R. Bostater, Luce Bassetti, Lisa H. Huddleston

Ocean Engineering and Marine Sciences Faculty Publications

This paper describes the results of modeling the water wave surface and underwater light field as influenced by water waves using a Monte Carlo model (MCHSIM). Model and sensor data related to water column properties and benthic properties that influence the light upwelled from below the water - as observed from a sensor looking from below or above the water surface is presented. Synthetic image results using Monte Carlo techniques show the influence of water waves upon subsurface shape factors and these factors can be used in shallow water remote sensing algorithms that are based on underlying analytical models. The …

Precision Navigation Using Pre-Georegistered Map Data, Frederick C. Webber

Theses and Dissertations

Navigation performance in small unmanned aerial vehicles (UAVs) is adversely affected by limitations in current sensor technology for small, lightweight sensors. Because most UAVs are equipped with cameras for mission-related purposes, it is advantageous to utilize the camera to improve the navigation solution. This research improves navigation by matching camera images to a priori georegistered image data and combining this update with existing image-aided navigation technology. The georegistration matching is done by projecting the images into the same plane, extracting features using the techniques Scale Invariant Feature Transform (SIFT) [5] and Speeded-Up Robust Features (SURF) [3]. The features are matched …

Analysis Of Simulated And Actual Airborne Remote Sensing Imagery For Characterization Of Surface Water Wave Effects, Charles R. Bostater, Heather Frystacky, Mate Nemes, Luce Bassetti

Ocean Engineering and Marine Sciences Faculty Publications

Simulated and airborne imagery demonstrate the ability to see manmade and natural objects below the water wave surface. Traditional photogrammetric imagery and airborne digital imagery both suffer from a loss in image clarity due to a number of factors, including the forward motion of the airborne platform. Blurring due to this effect can be calculated and an opto-mechanical system has been designed in order to help remove this effect. Forward motion blur can be shown to occur on the order of a several centimeters and calculation results are presented. The system is described and imagery is shown to demonstrate image …

The Climate Of Cities, Matthew J. Downing

Social Sciences

An overall survey of the factors involved in creating the climate of cities, how that climate differs from rural ones, and future implications of urban climates.

Object-Oriented Building Extraction And Three-Dimensional Representation Of Building Temperatures In Indianapolis, U.S.A., Jing Han

All-Inclusive List of Electronic Theses and Dissertations

With a rapid development of world population, urbanization has become an important issue in the past century and generated great pressure on the environment. In order to assist urban decision-makers to present, analyze, and solve related issues, accurate and timely spatial information is n~eded in urban areas. This research focused on building information extraction and the relationship analysis of buildings and temperatures in the downtown Indianapolis, IN. Through object-oriented classification, the image derived from LiDAR data was segmented into objects, and spectral, spatial, and textual attributes of objects were measured and selected to extract buildings. Moreover, each building's surface temperature …

Grades 2-3 Urban Communities, Amanda Bub

Social Studies

This is a social studies lesson for second and third graders on Urban Communities. Through this lesson students will be able to identify and understand the characteristics of an urban community and the benefits and disadvantages of that community. Students will learn to apply these ideas to understand the influence of environment on a person’s life. The lesson is tiered using a shape contract where the student on each level will choose three different shapes to complete the task based on their level and interest.

The Very Basics Of Sustainability - An Alternative Viewpoint (Slides With Audio) (Large File! To Speed Up Download, Right-Click On "Download" Link To Save To Own Pc.), Jim Mcgovern

Other resources

This presentation sets out the very basics of ‘sustainability’, although a definition of sustainability is not attempted. Some of the very basics are the context in which the Earth and humankind exist in space and time, the Earth’s climate, the Earth’s population and humankind’s options and choices. The author advocates keeping an open mind on all available options, including the use of oil, gas, coal, tar sands, carbon capture and sequestration, nuclear power etc., as well as the technologies that are more widely considered ‘green’. The author also argues that, in addressing the challenges that humankind faces, globally concerted effort …

Intersections Of Place, Time, And Entertainment In Rural Nebraska In The Late 19th And Early 20th Centuries, Rebecca A. Buller

Department of Geography: Dissertations, Theses, and Student Research

As newcomers developed Nebraska settlements in the late 19th and early 20th centuries, they began to shape the space. This study explores the intersections of place, time, and entertainment in rural Nebraska from the beginning of European American settlement in the late 19th century to the end of the Great Depression. Through such examinations, we can better understand the historical geographies of individual and collective human experience. With such knowledge, we can then recognize how entertainment reflected social life, sense of place, place attachment, and the intricacies and larger scale trends of race, ethnicity, gender, age, class, nationality, and religion. …

Spatio-Temporal Cluster Analysis Of County-Based Human West Nile Virus Incidence In The Continental United States, Ramanathan Sugumaran, Scott R. Larson, John P. Degroote

Faculty Work

Background: West Nile virus (WNV) is a vector-borne illness that can severely affect human health. After introduction on the East Coast in 1999, the virus quickly spread and became established across the continental United States. However, there have been significant variations in levels of human WNV incidence spatially and temporally. In order to quantify these variations, we used Kulldorff's spatial scan statistic and Anselin's Local Moran's I statistic to uncover spatial clustering of human WNV incidence at the county level in the continental United States from 2002– 2008. These two methods were applied with varying analysis thresholds in order …

Complexity In Water And Carbon Dioxide Fluxes Following Rain Pulses In An African Savanna, Christopher A. Williams, Niall Hanan, Robert J. Scholes, Werner Kutsch

Geography

The idea that many processes in arid and semi-arid ecosystems are dormant until activated by a pulse of rainfall, and then decay from a maximum rate as the soil dries, is widely used as a conceptual and mathematical model, but has rarely been evaluated with data. This paper examines soil water, evapotranspiration (ET), and net ecosystem CO2 exchange measured for 5 years at an eddy covariance tower sited in an Acacia-Combretum savanna near Skukuza in the Kruger National Park, South Africa. The analysis characterizes ecosystem flux responses to discrete rain events and evaluates the skill of increasingly complex "pulse models". …

The Status And Evolution Of Laws And Policies Regulating Privately Owned Tigers In The United States, Philip J. Nyhus, Michael Ambrogi, Caitlin Dufraine, Alan Shoemaker, Ronald L. Tilson

Faculty Scholarship

No abstract provided.

The Conservation Value Of Tigers: Separating Science From Fiction, Philip J. Nyhus, Ron L. Tilson

Faculty Scholarship

No abstract provided.

Resistant Place Identities In Rural Charleston County, South Carolina: Cultural, Environmental, And Racial Politics In The Sewee To Santee Area, Cassandra Y. Johnson, Angela C. Halfacre, Patrick T. Hurley

Environment and Sustainability Faculty Publications

The cultural and political implications of landscape change and urban growth in the western U.S. are well-documented. However, comparatively little scholarship has examined the effects of urbanization on sense of place in the southern U.S. We contribute to the literature on competing place meanings with a case study from the rural “Sewee to Santee” region of northern Charleston County, SC. Our research highlights conflicting cultural, environmental, and racial politics and their roles in struggles over place meanings. Using focus groups, interviews with elected officials, and participant observation, we document initial African American resistance and eventual compliance with the prevailing anti-sprawl …

Volunteerism And The Fight Against Hiv/Aids In Post-Katrina Louisiana, Lindsay Elizabeth Jarrell

Honors Capstones

No abstract provided.

Using Geographically Weighted Regression Models To Analyze Crash Harm, Libin Zheng

Civil & Environmental Engineering Theses & Dissertations

Society pays a high cost for collisions in terms of property damage, injuries and loss of life. This paper has two objectives. One is to examine various factors associated with harm caused by highway collisions. Both global OLS and local GWR models are provided to identify specific variables influencing crash harm. Another objective is to demonstrate the use of a Geographically Weighted Regression (GWR) method in this complex safety problem, which can estimate models for each crash location and show spatial variation. The results show that the GWR model is a significant improvement on the OLS model; the test for …

The Burden Of Fetching Water: Using Caloric Expenditure As An Indicator Of Access To Safe Drinking Water—A Case Study From Xieng Khouang Province, Lao Pdr, Jeff La Frenierre

Electronic Theses and Dissertations

The Millennium Development Goals measure ‘access to improved drinking water’ using an indicator that defines access as the presence of an improved water source within 1 kilometer of a person’s dwelling. This purely linear measurement has significant shortcomings, including a lack of consideration for the difficulty of the terrain being traversed and the weight of the loads being carried. This paper examines in detail the human energy costs associated with fetching water, first using two Lao villages as case studies, then applying a predictive energy expenditure model to measure the potential caloric effect of variations in the age and gender …

‘Buried Beneath The Waves’: Using Gis To Examine The Physical And Social Impact Of A Historical Flood, Mathew Novak, Jason Gilliland

Geography & Environment Publications

Natural disasters such as floods can periodically disturb and destroy the built and social fabric of communities. Despite their importance, specific ramifications of natural disasters can be overlooked in local histories due to a paucity of data. In this article we bring together several disparate sources of data within a historical geographic information system (HGIS) to study certain physical and social details of the flood which devastated the Town of London West, Canada on 11 July 1883. The integration of historical and contemporary data sources allow for the construction of a three-dimensional model of where the flood likely occurred. With …

The Determinants Of First Nation And Inuit Health: A Critical Population Health Approach, Chantelle A.M. Richmond, Nancy A. Ross

Aboriginal Policy Research Consortium International (APRCi)

Environmental dispossession disproportionately affects the health of Canada’s Aboriginal population, yet little is known about how its effects are sustained over time. We use a critical population health approach to explore the determinants of health in rural and remote First Nation and Inuit communities, and to conceptualize the pathways by which environmental dispossession affects these health determinants. We draw from narrative analysis of interviews with 26 Community Health Representa- tives (CHRs) from First Nation and Inuit communities across Canada. CHRs identified six health determinants: balance, life control, education, material resources, social resources, and environmental/ cultural connections. CHRs articulated the role …

Monitoring Al Ain City Urban Growth Dynamics Between 1972 And 2000 By Integrating Remote Sensing And Gis Techniques, Athari Abdullah Ai-Shuwaihi

Accounting Dissertations

We live in a world full of change as a result of either natural process or human activities. This study focuses on evaluating and monitoring the urban changes of Al Ain city by quantifying and visualizing various aspects of that change between 1972 and 2000. The results of the actual study will serve for effective city planning and decision making process for better life quality of the residents of the city. Rapid changes of the land use and land cover especially built up and impervious areas, make it necessary to involve innovative techniques such as remote sensing and GIS to …

Evaluating The Effectiveness Of Widely Available 3-D Visualization Tools In Support Of Public Participation, Laxmi Ramasubramanian, Jennifer L. Weeks, Tim Case

Publications and Research

There is a persistent need for improved tools and techniques to facilitate public involvement in transportation decision making. Despite continuous improvements in increasing public involvement at all phases of transportation decision making, transportation agencies are still seeking more affordable, accessible, and effective means of communicating with a wide range of stakeholders. The report documents a survey of a wide variety of transportation agencies on their use of interactive 3-D visualization for public involvement using an electronic survey. Supplemental qualitative data was generated through telephone interviews with selected survey participants. It concludes with three case studies illustrating applications of interactive 3-D …

Impacts Of Climate Change And Urban Development On Water Resources In The Tualatin River Basin, Sarah Praskievicz

Dissertations and Theses

Potential impacts of climate change on the water resources of the Pacific Northwest of the United States include earlier peak runoff, reduced summer flows, and increased winter flooding. An increase in impervious surfaces, accompanied by urban development, is known to decrease infiltration and increase surface runoff. Alterations of flow amount and pathways can alter water quality through dilution or flushing effects. I used the United States Environmental Protection Agency's Better Assessment Science Integrating Point and Nonpoint Sources (BASINS) modeling system to investigate the relative importance of future climate change and land use change in determining the quantity and quality of …

Migrant Domestic Workers In Asia: The Case Of Singapore, Kayoko Ueno

Migration and Ethnic Relations Colloquium Series

No abstract provided.

The Problem With Eating Money: Remittances And Development Within Senegal's Muridiyya, Rebecca F. Sheff

Political Science Honors Projects

Contemporary development theory is poorly equipped to understand remittance-based development occurring in transnational spaces that partially escape the control of the state. An extended case study of the Muridiyya, a Sufi brotherhood in Senegal, reveals how collective remittances from Mouride transmigrants become tools for community-level development when channeled through transnational religious associations. I argue that remittance-based development projects transform the political, economic, and social contexts in which they are embedded, including the relationship between the Muridiyya and the state. Development theory must be reconceptualized to account for how remittance-based development defies conventional understandings of the scales of economic and social …

At Risk? Exploring The Relationship Between Hiv-Related Knowledge And Risky Behavior In Young Females In Jamaica., Christine E. Chung

Geography Honors Projects

Young females are at three times higher risk of contracting HIV than their male counterparts in Jamaica. Using Jamaica’s 2004 Knowledge, Attitudes, Behaviour and Practices survey, this research investigates factors contributing to HIV/AIDS-related risky behaviors of young females. Risk perception as a function of knowledge and as an influence on behavior is also examined. The findings reveal that only older females, 25 to 49 years, practice safer behaviors in response to increased knowledge. This highlights the disjunction between knowledge and behavior, emphasizing the need for a holistic approach to addressing the social context within which adolescents are put at risk.