Geography Commons^™

Understanding Small Town Sprawl Using Gis, Priscilla Lema, Francis Koti

Geography

No abstract provided.

No. 26: Supermarkets And Informal Food Vendors In Windhoek, Namibia, Ndeyapo Nickanor, Lawrence Kazembe, Jonathan Crush

Hungry Cities Partnership

Much of the literature on urban food systems has focused on the expansion of supermarkets and their ability to reach urban consumers. However, the current pace of urbanization and rising urban poverty have been accompanied by a major upsurge in informality and a growing role for the informal food sector. One of the persistent arguments in the literature on supermarkets is that the expansion of modern retail undermines the informal food sector. Critics of this argument suggest that there are two conditions under which this may not occur: first, when there is spatial differentiation with supermarkets servicing higher income areas …

No. 16: Inclusive Growth And The Informal Food Sector In Cape Town, South Africa, Godfrey Tawodzera, Jonathan Crush

Hungry Cities Partnership

This report on the informal food sector in Cape Town is the third on the city’s food system published by the Hungry Cities Partnership in collaboration with the African Centre for Cities at the University of Cape Town. The earlier reports provided background and context on the nature of the food system (Haysom et al 2017) and the importance of the informal food sector in household food consumption (Crush et al 2018). Additional context is provided by HCP Discussion Paper No. 23, which situates this research in relation to literature on the South African informal economy in general, and the …

No. 24: Achieving Urban Food Security Through A Public-Private Hybrid Food Provisioning System: A Case Study Of Nanjing, China, Taiyang Zhong, Zhenzhong Si, Jonathan Crush, Xianjin Huang, Steffanie Scott, Menglu Yan, Shuangshuang Tang, Xiang Zhang

Hungry Cities Partnership

Private and public markets are two models of urban food retailing governance. This paper examines the public-private hybrid model of urban food provisioning system and its governance in Nanjing, China. Based on data from surveys, non-structured interviews, and bibliographical material analysis, we examine the public-private hybrid model and its linkages with urban food security. Our analysis shows that the public-private hybrid model of food markets and its governance ensures a relatively high-level urban food security in Nanjing. We argue that the hybrid food market governance system effectively integrates public and private capital into a government-supported and regulated, small-business-based system in …

No. 23: Food Vending And The Urban Informal Sector In Cape Town, South Africa, Godfrey Tawodzera

Hungry Cities Partnership

In South Africa, the informal food sector is either criminalized or ignored, despite the important role it plays in the economy in terms of employment, income generation, food distribution, and general livelihoods. This paper assesses the nature, operations, strategies, and challenges of the informal food sector in Cape Town. Data was collected through a survey of over 1,000 informal food vendors in the city. Survey results indicate that most of the enterprises were single-owner businesses, financed from personal savings, and started by owners seeking employment, independence, and improved financial security for their families. Most businesses had little or no access …

No. 34: The Political Economy Of Informal Food Vending In Kingston, Jamaica, Robert Kinlocke, Elizabeth Thomas-Hope

Hungry Cities Partnership

Small-scale food enterprises occupy a critical space in the food system of Kingston, Jamaica. While smallscale food retailers serve the entire population, they are disproportionately relied on by poor urban households. The nodes and networks of retailers play an important role in the value and commodity chain by providing access to comparatively cheap food but are often affected by economic vagaries and state-level regulation, among other factors that potentially challenge the sustainability of trade. These issues are potentially offset by a highly dynamic system where entry into the trade is maintained by the high levels of unemployment and limited alternatives. …

Anthropogenic Influence On Falco Sparverius Populations Within Washington State, Jesse Squibb

Undergraduate Honors Theses

American Kestrel (Falco sparverius) populations have been fluctuating throughout the United States. A primary focus in studying these birds has been on the decline of the small raptor along the East Coast of the United States. This project focuses on the American Kestrel populations within Washington State between 2005 and 2011. The goal of this project was to determine whether or not the trend in Washington are similar to those along the East Coast. This study uses data from Global Biodiversity Information Facility, Christmas Bird Count, and North American Breeding Bird Survey for American Kestrel Sightings. The United …

Subglacial Roughness Of The Greenland Ice Sheet: Relationship With Contemporary Ice Velocity And Geology, Michael A. Cooper, Thomas M. Jordan, Dustin M. Schroeder, Martin J. Siegert, Christopher N. Williams, Jonathan L. Bamber

Geography

The subglacial environment of the Greenland Ice Sheet (GrIS) is poorly constrained both in its bulk properties, for example geology, the presence of sediment, and the presence of water, and interfacial conditions, such as roughness and bed rheology. There is, therefore, limited understanding of how spatially heterogeneous subglacial properties relate to ice-sheet motion. Here, via analysis of 2 decades of radio-echo sounding data, we present a new systematic analysis of subglacial roughness beneath the GrIS. We use two independent methods to quantify subglacial roughness: first, the variability in along-track topography - enabling an assessment of roughness anisotropy from pairs of …

A Deep Dive Into The Land Development Dynamics Of A Complex Landscape, Pariya Pourmohammadi

Graduate Theses, Dissertations, and Problem Reports (ETD)

Land development is a complex and dynamic process simultaneously interacting with numerous environmental, cultural and economic procedures. In this research we studied past, present and future of land transformation in Appalachia. This dissertation is organized in three-essay format and each essay is focused on one aspect of land development processes in a sub-region in the Appalachian region. In the first essay, deep learning techniques are used to build predictive models for the land development. This study presets deconvolutional neural networks models in predicting land development. On the second essay, spatial data analysis and remote sensing are used to investigate the …

Mapa De Amenazas A Territorios Indígenas Y Áreas Protegidas En Las Fronteras Amazónicas En Ucayali Y Madre De Dios (Perú) Y Acre (Brasil), Gtaso, David S. Salisbury Et Al.

Geography and the Environment Maps

Mapa de Amenazas a Territorios Indígenas y Áreas protegidas en las fronteras amazónicas en Ucayali y Madre de Dios (Perú) y Acre (Brasil)

Map of Threats to Indigenous Territories and Protected Areas at the Amazonian borders in Ucayali and Madre de Dios (Peru) and Acre (Brazil)

Mapa De Zonas Vulnerables En Las Fronteras Amazónicas Ucayali Y Madre De Dios (Perú) Y Acre (Brasil), Gtaso, David S. Salisbury Et Al.

Geography and the Environment Maps

Mapa de Zonas Vulnerables en las Fronteras Amazónicas Ucayali y Madre de Dios (Perú) y Acre (Brasil)

Map of Vulnerable Areas in the Amazonian Borders Ucayali and Madre de Dios (Peru) and Acre (Brazil)

Mapa De Territorios Indígenas Y Áreas Naturales Protegidas En Las Fronteras Amazónicas Ucayali Y Madre De Dios (Perú) Y Acre (Brasil), Gtaso, David S. Salisbury Et Al.

Geography and the Environment Maps

Mapa de Territorios Indígenas y Áreas Naturales Protegidas en las Fronteras Amazónicas Ucayali y Madre de Dios (Perú) y Acre (Brasil)

Map of Indigenous Territories and Protected Natural Areas in the Amazonian Borders Ucayali and Madre de Dios (Peru) and Acre (Brazil)

Augmenting Land Cover/Land Use Classification By Incorporating Information From Land Surface Phenology: An Application To Quantify Recent Cropland Expansion In South Dakota, Lan Hoang Nguyen

Electronic Theses and Dissertations

Understanding rapid land change in the U.S. NGP region is not only critical for management and conservation of prairie habitats and ecosystem services, but also for projecting production of crops and biofuels and the impacts of land conversion on water quality and rural transportation infrastructure. Hence, it raises the need for an LCLU dataset with good spatiotemporal coverage as well as consistent accuracy through time to enable change analysis. This dissertation aims (1) to develop a novel classification method, which utilizes time series images from comparable sensors, from the perspective of land surface phenology, and (2) to apply the land …

Mass Wasting Investigation And Assessment In The Midwest: Case Study Of The Minnesota River Valley, New Ulm To St. Peter, Minnesota, Usa, Melissa Kohout

All Graduate Theses, Dissertations, and Other Capstone Projects

Many mass- wasting studies have been conducted worldwide, however, investigations have focused in mountainous or coastal regions. This has proven problematic in areas lacking those features yet are experiencing mass wasting. Several anthropogenic risks, economic loss, and environmental issues are associated with mass wasting such as destruction of property, loss of life, and sediment pollution. The midwestern USA, is generally considered a low relief region, therefore limited data exist for mass wasting occurrence. Within the last decade, however, several events have occurred across Minnesota with little understanding of the ongoing hillslope processes leading to failure. The Minnesota River valley is …

Criar Y Dejarse Criar: Trans-Situ Crop Conservation And Indigenous Landscape Management Through A Network Of Global Food Neighborhoods, Cass Madden

Capstone Collection

As climate change progresses, global food security is likely to become increasingly threatened and crop biodiversity will be a significant source of resiliency and adaptability. However, these adaptations will only be fully realized through cooperative in situ and ex situ conservation and cultivation of domesticated crops, crop wild relatives, and wild foods. This conservation is best realized in places where communities have the cultural resources to invest meaningfully in the cultivation of native crops, and where the cultivation of those crops can reinforce place-specific livelihoods and identities. To this end, the principal objective of this research is to propose a …

Size Estimation Of Pre‐Columbian Caribbean Fish, Sandrine Grouard, Sophia Perdikaris, Nídia Cristina Espíndola Rodrigues, Irvy R. Quitmyer

School of Global Integrative Studies: Faculty Publications

In this contribution, we present a methodological approach to the identification of pre‐Columbian Caribbean fisheries and examine the interrelationships of exploitation according to size for eight fish families, in a diachronic perspective for the Lesser Antilles. Based on the principles of size and growth allometries, biometric repositories have been reconstructed for modern families that represent different ecological environments: Holocentridae, Serranidae, Carangidae, Lutjanidae, Haemulidae, Scaridae, Acanthuridae, and Scombridae. The measured fish bone elements were selected based on their robustness and potential for recovery at archaeological sites. This resulted in a sample size totaling 563 modern osteological specimens, which provided reconstructed standard, …

Characterizing Spatiotemporal Patterns Of White Mold In Soybean Across South Dakota Using Remote Sensing, Confiance L. Mfuka

Electronic Theses and Dissertations

Soybean is among the most important crops, cultivated primarily for beans, which are used for food, feed, and biofuel. According to FAO, the United States was the biggest soybeans producer in 2016. The main soybean producing regions in the United States are the Corn Belt and the lower Mississippi Valley. Despite its importance, soybean production is reduced by several diseases, among which Sclerotinia stem rot, also known as white mold, a fungal disease that is caused by the fungus Sclerotinia sclerotiorum is among the top 10 soybean diseases. The disease may attack several plants and considerably reduce yield. According to …

Classification Of North Africa For Use As An Extended Pseudo Invariant Calibration Sites (Epics) For Radiometric Calibration And Stability Monitoring Of Optical Satellite Sensors, Mahesh Shrestha

Electronic Theses and Dissertations

An increasing number of Earth-observing satellite sensors are being launched to meet the insatiable demand for timely and accurate data to help the understanding of the Earth’s complex systems and to monitor significant changes to them. The quality of data recorded by these sensors is a primary concern, as it critically depends on accurate radiometric calibration for each sensor. Pseudo Invariant Calibration Sites (PICS) have been extensively used for radiometric calibration and temporal stability monitoring of optical satellite sensors. Due to limited knowledge about the radiometric stability of North Africa, only a limited number of sites in the region are …

Methods For Earth-Observing Satellite Surface Reflectance Validation, Moe Talal Badawi

Electronic Theses and Dissertations

In this study an initial validation of the Landsat 8 (L8) Operational Land Imager (OLI) Surface Reflectance (SR) product was performed. The OLI SR product is derived from the L8 Top-of-Atmosphere product via the Landsat Surface Reflectance Code (LaSRC) software and generated by the U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center. The goal of this study is to develop and evaluate proper validation methodology for the OLI L2 SR product. Validation was performed using near-simultaneous ground truth SR measurements during Landsat 8 overpasses at 13 sites located in the U.S., Brazil, Chile and France. The ground …

How Are Interannual Variations Of Land Surface Phenology In The Highland Pastures Of Kyrgyzstan Modulated By Terrain, Snow Cover Seasonality, And Climate Oscillations? An Investigation Using Multi-Source Remote Sensing Data, Monika Anna Tomaszewska

Electronic Theses and Dissertations

In the semiarid, continental climates of montane Central Asia, with its constant moisture deficit and low relative humidity, agropastoralism constitutes the foundation of the rural economy. In Kyrgyzstan, an impoverished, landlocked republic in Central Asia, herders of the highlands practice vertical transhumance—the annual movement of livestock to higher elevation pastures to take advantage of seasonally available forage resources. Dependency on pasture resource availability during the short mountain growing season makes herds and herders susceptible to changing weather and climate patterns. This dissertation focuses on using remote sensing observations over the highland pastures in Kyrgyzstan to address five interrelated topics: (i) …