Geography Commons^™

Satellite Monitoring Of Harmful Algal Blooms In The Western Basin Of Lake Erie: A 20-Year Time-Series, Michael Sayers, Amanda Grimm, Robert Shuchman, Karl Bosse, Gary L. Fahnenstiel, Steven A. Ruberg, George A. Leshkevich

Michigan Tech Publications, Part 1

Blooms of harmful cyanobacteria (cyanoHABs) have occurred on an annual basis in western Lake Erie for more than a decade. Previously, we developed and validated an algorithm to map the extent of the submerged and surface scum components of cyanoHABs using MODIS ocean-color satellite data. The algorithm maps submerged cyanoHABs by identifying high chlorophyll concentrations (>18 mg/m3) combined with water temperature >20 °C, while cyanoHABs surface scums are mapped using near-infrared reflectance values. Here, we adapted this algorithm for the SeaWiFS sensor to map the annual areal extents of cyanoHABs in the Western Basin of Lake Erie for the …

Are Walkable Places Tech Incubators? Evidence From Nebraska’S ‘Silicon Prairie’, Bradley Bereitschaft

Geography and Geology Faculty Publications

This study examines the spatial association between science- and technology-related entrepreneurship and neighbourhood walkability in eastern Nebraska, often referred to as the northern ‘Silicon Prairie’. Tech start-up firms are expected to gravitate toward more walkable or pedestrian-oriented urban locations to benefit from heightened social interaction, knowledge spillovers and a more vibrant, creative atmosphere. Data on start-up firms collected from the online database Crunchbase.com and a walkability index provided by the popular online service Walk Score® were used to evaluate the walkability–tech entrepreneurship nexus. The spatial relationship between walkability and firm location may have important implications for metropolitan areas seeking to …

The Use Of Geospatial Modeling And Novel Diagnostics To Detect And Map Risk Factors Of Soil-Transmitted Helminths In Feira De Santana, Brazil, Ryan Harry Avery

LSU Doctoral Dissertations

Soil-transmitted helminth (STH) infections impact billions of people worldwide. The traditional STH control approach is a morbidity control strategy implementing mass drug administration (MDA) programs targeting school-aged children (SAC). In Brazil, this control strategy has decreased STH prevalence to less than 20% in most of the country and providing an opportunity to transition from the morbidity control program and towards a surveillance and response system geared towards STH elimination. Surveillance and response systems geared towards elimination require the implementation higher accuracy diagnostics to detect infection in low-transmission communities, surveillance of entire households, high-resolution modeling at the household-habitat scale, and targeted …

"Oh, Those Horsemen!" Regulatory Change And Cultural Peculiarity In Finland, Pauliina Raento

International Conference on Gambling & Risk Taking

Abstract

Finland's three gambling monopoly operators merged into one state-owned entity in 2017. A particular challenge to the process came from its smallest constituent, the tote company Fintoto, its owner, the national Trotting and Horse Breeding Association, and the equine industry’s cultural peculiarity.

The process is examined from the perspective of the equine industry, which had to choose between joining or not joining the merger. The exchanges between 'horse people' and state regulators, the equine industry’s resistance and decision to participate in the merger, and concerns about impact are traced from Finland's leading equine newspaper, in 2015–2017. The articles are …

Rediscovery Of The Endangered Carchi Andean Toad, Rhaebo Colomai (Hoogmoed, 1985), In Ecuador, With Comments On Its Conservation Status And Extinction Risk, Carolina Reyes-Puig, Gabriela B. Bittencourt-Silva, María Torres-Sánchez, Mark Wilkinson, Jeffrey W. Streicher, Simon T. Maddock, Ramachandran Kotharambath, Hendrik Müller, Francesca Nicole Angiolani Larrera, Diego Amieda-Reinoso, Santiago R. Ron, Diego Francisco Cisneros-Heredia

Neuroscience Faculty Publications

Since 1984 there have been no records of Rhaebo colomai (Hoogmoed, 1985) within the territory of Ecuador. This species was known from 2 localities in the province of Carchi, northwestern Ecuador, and the department of Nariño, southwestern Colombia, which were reported in 1979 and 2015, respectively. We report the recent sightings of R. colomai at 3 new localities in Ecuador and discuss and evaluate this species’ extinction risk and conservation status.

The Long-Run Effects Of Tropical Cyclones On Infant Mortality, Isabel Miranda

Master's Theses

In the United States alone, each tropical cyclone causes an average of $14.6 billion worth of damages. In addition to the destruction of physical infrastructure, natural disasters also negatively impact human capital formation. These losses are often more difficult to observe, and therefore, are over looked when quantifying the true costs of natural disasters. One particular effect is an increase in infant mortality rates, an important indicator of a country’s general socioeconomic level. This paper utilizes a model created by Anttila-Hughes and Hsiang, that takes advantage of annual variation in tropical cyclones using annual spatial average maximum wind speeds and …

3d Canopy Model Reconstruction From Unmanned Aerial System And Automated Single Tree Extraction, Hai Ha Duong

Graduate Theses/Dissertations

This project aims to develop and assess methodology for spatial modeling and extracting individual trees from high spatial resolution Digital Surface Model (DSMs) derived from unmanned aerial system (UAS) or drone-based aerial photos. Those results could be used for monitoring of vegetative response of forests, grasslands and vineyards to regional and localized fluctuations in climate and seasonality. The primary objective of this research is to extract 3D spatial information using drone-based aerial imagery through photogrammetric methods. UAS flights were taken place at phenologically critical times over several locations owned and managed by Missouri State University (MSU). The 3D DSM can …

Determining The Effect Of Mission Design And Point Cloud Filtering On The Quality And Accuracy Of Sfm Photogrammetric Products Derived From Suas Imagery, Daniel Shay Hostens

Graduate Theses/Dissertations

This research investigates the influence that various flight plan and mission design strategies for collecting small unmanned aerial system (sUAS) imagery have on the accuracy of the resulting three-dimensional models to find an optimal method to achieve a result. This research also explores the effect that using gradual selection to reduce the sparse point cloud has on product accuracy and processing details. Imagery was collected in the spring of 2018 during leaf-off conditions at six field sites along the North Fork of the White River. The aerial imagery was collected using a DJI Phantom Pro 4 sUAS. Four different image …

Greenway Trail Viewshed Characteristics: Planning Applications Using Gis And Remote Sensing, Aric Addison Beehler

Graduate Theses/Dissertations

This study applies theoretical findings relating greenway trail viewshed characteristics to a proposed greenway trail. Utilizing geographic information systems and remote sensing techniques, this study compares the viewshed characteristics of two proposed routes to connect an existent greenway trail system to Wilson’s Creek National Battlefield in Greene County, MO. Light Detection and Ranging data is then used to map the viewshed of each route and calculate the openness and interconnectedness of each viewshed. High-resolution multispectral imagery is then used to calculate the Normalized Difference Vegetation Index measuring the “greenness” within each viewshed. Finally, parcel-level land use data is used to …

A Fishy Problem: Effects Of Atlantic Salmon Farming In The Pacific Ocean, Madeleine A. Griffith

Student Theses 2015-Present

In this report, I explore the historical, climatological, economic, and ethical issues created by the contemporary industrial salmon farming practices off Pacific coast of the United States and Canada. Chapter 1 utilizes a variety of sources from Stephen Hume’s A Stain upon the Sea to Miller’s Living in the Environment, to examine the integral part salmon plays in both freshwater and marine ecosystems, the ecosystem services salmon contribute in wild and farmed settings, and the trends in salmon consumption around the world. Chapter 2 examines the historically relevant role salmon held among indigenous societies and how that role has changed …

Circumpolar Status Of Arctic Ptarmigan: Population Dynamics And Trends, Eva Fuglei, John-Andre ́ Henden, Chris T. Callahan, Olivier Gilg, Jannik Hansen, Rolf A. Ims, Arkady P. Isaev, Johannes Lang, Carol L. Mcintyre, Richard A. Merizon, Oleg Y. Mineev, Yuri N. Mineev, Dave Mossop, Olafur K. Nielsen, Erlend B. Nilsen, Ashild Ønvik Pedersen, Niels Martin Martin, Benoıt Sittler, Maria Hørnell Willebrand, Kathy Martin

United States National Park Service: Publications

Rock ptarmigan (Lagopus muta) and willow ptarmigan (L. lagopus) are Arctic birds with a circumpolar distribution but there is limited knowledge about their status and trends across their circumpolar distribution. Here, we compiled information from 90 ptarmigan study sites from 7 Arctic countries, where almost half of the sites are still monitored. Rock ptarmigan showed an overall negative trend on Iceland and Greenland, while Svalbard and Newfoundland had positive trends, and no significant trends in Alaska. For willow ptarmigan, there was a negative trend in mid-Sweden and eastern Russia, while northern Fennoscandia, North America and Newfoundland had no significant trends. …

Wish You Were Here, Janie Stamm, Janie I. Stamm

Graduate School of Art Theses

The State of Florida is under threat from the effects of climate change. Rising sea levels are creeping up on to Florida’s coast, eroding the beaches and encroaching on heavily populated cities. Over my lifetime I will watch the water spill over the streets of my home town. I will watch the water flood the Everglades, pushing saltwater into freshwater habitats. I will watch the water begin to drown the state, taking Florida’s many little known histories along with it. This thesis serves as a document of Floridian life during the Anthropocene.

Within this thesis, I tell the story of …

Glacial Meltwater Modeling To Simulate Streamflow And Lake Levels In Taylor Valley, Antarctica, Julian M. Cross, Andrew G. Fountain

Student Research Symposium

The McMurdo Dry Valleys (MDV) are the largest ice-free region (4,500 km²) in Antarctica. The MDV are a polar desert with an average annual temperature of -18˚C and minimal precipitation, < 50 mm w.e. a^-1. In Taylor Valley (77°35’ S, 163°00’ E), a closed-basin, perennially ice-covered lakes occupy the valley floor. Ephemeral streams transfer glacier meltwater for ~10 weeks each summer. Glacial meltwater accounts for nearly the total inflow to these streams and lakes, groundwater is essentially non-existent. A microbially-dominated ecosystem in Taylor Valley depends on glacier runoff and thus is highly sensitive to changes to the hydroclimatic regime. A model …

Restoring Eden: The Role Of Christianity On Environmental Conservation, A Case Of Karatu District, Arusha, Tanzania, Taylor Allen

Student Research Symposium

In order for environmental conservation to be effective among citizens, it must have a method of relating to their everyday values. Developing countries account for the majority of bio-diversity hotspot areas and thus are important to maintain sustainable development. Due to most of these countries following an organized religion, predominantly Christian, an alternative method of conservation may be successful to motivate citizens to participate in conservation efforts. In order for this method to be successful, members of the congregation must agree that there is a religious obligation to care for the environment. For Christianity this obligation is discussed by the …

Assessing How Terrain Representations And Scale Affect The Accuracy Of Distance Estimates, Kristian Mueller

Geography ETDs

Terrain is often displayed on maps either as background or foreground. Although terrain representations are ubiquitous, there is not a thorough understanding of map-readers’ cognition of geographic surfaces from various terrain representations. The research described in this thesis empirically assessed map users’ abilities at estimating straight-line distance using maps with two different types of terrain representations and at three different scales. The objective of this research was to assess how accurately map users estimate distance on the ground taking into account variations in elevation. Participant data in the form of demographics and distance estimates were statistically analyzed to determine if …

Rennick, Robert M., 1932-2010 (Sc 3419), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid and scans (Click on "Additional Files" below) for Manuscripts Small Collection 3419. Letters, March 1972, to retired WKU faculty member Frances Richards and her sister Mary Ellen Richards, Franklin, Kentucky, from Robert M. Rennick of the University of Kentucky’s Prestonsburg Community College. Rennick outlines the objectives and methods of a national undertaking to survey all the place names of the United States and his work with a committee to ensure Kentucky’s participation. He requests their help in supervising the research and gathering of data from Simpson County. A second letter thanks Frances for her agreement to participate and …

An Evaluation Of The Impact Of Leading Pedestrian Interval Signals In Nyc, Jeremy J. Sze

Theses and Dissertations

I evaluated the impact of the phased introduction of Leading Pedestrian Interval Signals (LPIs) on collision and injury outcomes at 12,987 signalized traffic intersections in New York City over the course of 25 quarters from 2012 to 2018. An intersection is treated when a LPIs is installed to give pedestrians lead time to cross the street before vehicles are allowed to move. Outcomes from NYPD’s Motor Vehicle Collisions data were matched to signalized intersections. I hypothesize that LPIs would reduce collisions and reduce injuries for pedestrians at intersections. A difference in difference fixed effects panel regression was used to identify …

A Smartphone App Survey To Encourage Sustainable And Healthy Travel Mode Choices, Paul Rivers

Theses and Dissertations

Can access to carbon footprint and health [calorie and fat burn] information influence transportation behavior? Survey methods are used in conjunction with a smartphone GPS mobile app to measure transportation tendencies in weekdays – weekends, and willingness to undertake modal shift based on app experience over one week.

Repurposed Spaces In Berlin And Johannesburg, Rebecca Kukla

Theses and Dissertations

Berlin and Johannesburg are repurposed cities, which were spatially designed to enforce a defunct social order, and which now must be used in new ways by new residents. Through a reading of several sites in each city, I examine how repurposed urban spaces and their inhabitants shape one another.

The Interface Between Invasive Species And The Increased Incidence Of Tick-Borne Diseases, And The Implications For Federal Land Managers, Ed Clark, Janis Mcfarland, Blaine Parker, Slade Franklin

National Invasive Species Council

Includes information on the dynamics of tick-borne disease, factors affecting the occurrence and density of ticks, matrices of ties between habitat, human activities, invasive plants, and ticks, federal resources and programs related to ticks and vector-borne disease in the United States, with references and an annotated bibliography of literature on ticks, vector-borne diseases, and invasive species.