Open Access. Powered by Scholars. Published by Universities.®

Geography Commons

Open Access. Powered by Scholars. Published by Universities.®

9,566 Full-Text Articles 10,621 Authors 1,980,448 Downloads 228 Institutions

All Articles in Geography

Faceted Search

9,566 full-text articles. Page 3 of 314.

Investigating Smoke Aerosol Emission Coefficients Using Modis Active Fire And Aerosol Products – A Case Study In The Conus And Indonesia, Xiaoman Lu, Xiaoyang Zhang, Fangjun Li, Mark Cochrane 2018 Geospatial Sciences Center of Excellence, Department of Geography, South Dakota State University, Brookings, SD 57007, USA

Investigating Smoke Aerosol Emission Coefficients Using Modis Active Fire And Aerosol Products – A Case Study In The Conus And Indonesia, Xiaoman Lu, Xiaoyang Zhang, Fangjun Li, Mark Cochrane

Global Land Surface Season Data Sets

This data set is in relation to the paper of the same title, which has been submitted to the Journal of Geophysical Research: Biogeosciences.

Instructions for viewing the data in “Readme.txt”





The Evacuation Of Phnom Penh During The Cambodian Genocide: Applying Spatial Video Geonarratives To The Study Of Genocide, James A. Tyner, Andrew Curtis, Sokvisal Kimsroy, Chhunly Chhay 2018 Kent State University

The Evacuation Of Phnom Penh During The Cambodian Genocide: Applying Spatial Video Geonarratives To The Study Of Genocide, James A. Tyner, Andrew Curtis, Sokvisal Kimsroy, Chhunly Chhay

Genocide Studies and Prevention: An International Journal

On April 17, 1975 Khmer Rouge soldiers began the forcible evacuation of Phnom Penh, Cambodia’s capital city. The evacuation has been the subject of considerable debate surrounding the Cambodian genocide and remains a topic of prime importance toward the understanding of Khmer Rouge policy and practice. In this field note, we present a geographically-informed account of the evacuation in order to provide a more fine-grained analysis of Khmer Rouge practice. More specifically, employing spatial video geonarratives, we provide a systematic investigation of the evacuation, as retraced by six evacuees. In so doing we contribute also to the emergent use ...


The Heat Is On! Perspectives And Practices Regarding Extreme Heat Risk, Emily D. Esplin 2018 Utah State University

The Heat Is On! Perspectives And Practices Regarding Extreme Heat Risk, Emily D. Esplin

All Graduate Theses and Dissertations

Remembering negative experiences with extreme heat may promote future protective actions and provide insight to improve heat risk awareness and communication practices. This two-part thesis found 1) that experiencing heat-related health symptoms predicted what Americans would do to protect themselves and others during subsequent heat waves; and 2) that Utah professionals regard heat-related experience as an important factor in how they responded to extreme heat events.

In the first study, a US national survey showed that personal experience with heat-related health symptoms was related to the tendency to say that one engaged in different protective behaviors, while other factors like ...


Spatio-Temporal Reconstruction Of Remote Sensing Observations, Kamrul Khan 2018 University of Arkansas, Fayetteville

Spatio-Temporal Reconstruction Of Remote Sensing Observations, Kamrul Khan

Theses and Dissertations

The USDA Forest Service aims to use satellite imagery for monitoring and predicting changes in forest conditions over time within the country. We specifically focus on a 230, 400 hectares region in north-central Wisconsin between 2003 - 2012. The auxiliary data collected from the satellite imagery of this region are relatively dense in space and time and can be used to efficiently predict how the forest condition changed over that decade. However, these records have a significant proportion of missing values due to weather conditions and system failures. To fill in these missing values, we build spaciotemporal models based on fixed ...


Managing Electric Utility Assets For The City Of Aspen, Colorado, Hamish Henderson 2018 University of Redlands

Managing Electric Utility Assets For The City Of Aspen, Colorado, Hamish Henderson

MS GIS Program Major Individual Projects

This project describes how an electric network can be modeled in GIS. In particular it will look at the City of Aspen’s electric distribution network. The City of Aspen, Colorado has a small underground electric network that has historically only been understood by a few individuals. These individuals are nearing retirement which has sparked a need for a transfer of knowledge. Over the last few years, the electric network has been slowly moved into a GIS database with a built in Geometric Network. The City of Aspen wants to move all of its utility assets, water, storm water and ...


Legionnaires' Disease - A Prototype Tool To Identify At-Risk Hospital Rooms, Jonathan T. Quinn 2018 University of Redlands

Legionnaires' Disease - A Prototype Tool To Identify At-Risk Hospital Rooms, Jonathan T. Quinn

MS GIS Program Major Individual Projects

Nosocomial diseases are diseases that originate within hospital or healthcare facilities. Those types of diseases pose significant risks to patients staying within hospital or healthcare facilities as patients are often elderly or already have compromised immune systems. Often, the diseases are airborne or waterborne and frequently spread through the building’s utility systems, such as the heating, ventilation, and air conditioning, (HVAC), or water system. This report describes a proof of concept to identify parts of an HVAC system that may be affected by a contaminate, and which rooms within the building are at risk of spreading the contaminate. The ...


Decadal Land Surface Phenology And Water Quality In The Headwaters Illinois River Watershed, Justin Ray Rollans 2018 University of Arkansas, Fayetteville

Decadal Land Surface Phenology And Water Quality In The Headwaters Illinois River Watershed, Justin Ray Rollans

Theses and Dissertations

Over 25 percent of the world’s population either lives on or obtains water from karst aquifers. The complex interactions between subsurface karst geologic features, the constant motion of the plant life cycle, and significant water resource demand all suggest the need to better define those interactions. The relationship of historical land surface phenology and water quality in karst topography were investigated in the Headwaters Illinois River watershed in Northwest Arkansas (NWA). This area represents high vulnerability to surface water and groundwater contamination, with both natural and anthropogenic processes such as over application of broil litter for enhanced cattle browse ...


Carter Family Tree, Mattison Griffin 2018 Ouachita Baptist University

Carter Family Tree, Mattison Griffin

History Class Publications

This research paper looks at the family tree of Mattison Griffin following the Cart line. The lineage is traced back centuries and looks at the location of the family and how they traveled from England to Arkansas.


Earth-Observation-Based Estimation And Forecasting Of Particulate Matter Impact On Solar Energy In Egypt, Panagiotis G. Kosmopoulos, Stelios Kazadzis, Hesham el-Askary, Michael Taylor, Antonis Gkikas, Emmanouil Proestakis, Charalampos Kontoes, Mohamed Mostafa El-Khayat 2018 National Observatory of Athens

Earth-Observation-Based Estimation And Forecasting Of Particulate Matter Impact On Solar Energy In Egypt, Panagiotis G. Kosmopoulos, Stelios Kazadzis, Hesham El-Askary, Michael Taylor, Antonis Gkikas, Emmanouil Proestakis, Charalampos Kontoes, Mohamed Mostafa El-Khayat

Mathematics, Physics, and Computer Science Faculty Articles and Research

This study estimates the impact of dust aerosols on surface solar radiation and solar energy in Egypt based on Earth Observation (EO) related techniques. For this purpose, we exploited the synergy of monthly mean and daily post processed satellite remote sensing observations from theMODerate resolution Imaging Spectroradiometer (MODIS), radiative transfer model (RTM) simulations utilizing machine learning, in conjunction with 1-day forecasts from the Copernicus Atmosphere Monitoring Service (CAMS). As cloudy conditions in this region are rare, aerosols in particular dust, are the most common sources of solar irradiance attenuation, causing performance issues in the photovoltaic (PV) and concentrated solar power ...


Developing And Testing A Novel Intervention To Reduce Household Food Waste, Paul van der Werf 2018 The University of Western Ontario

Developing And Testing A Novel Intervention To Reduce Household Food Waste, Paul Van Der Werf

Electronic Thesis and Dissertation Repository

The amount of food wasted is a topic of societal and academic interest. As academic research in this area is nascent, there are significant knowledge gaps, which this dissertation seeks to narrow, pertaining to: (1) the measurement of food waste; (2) the human behaviors that lead to wasting of food; and (3) the development of efficacious food waste reduction interventions.

A systematic literature review of 55 food waste estimates showed that on average 114.3 kg/capita/year is wasted from consumption (i.e., household) and 198.9 kg/capita/year across the entire food supply chain. There is considerable ...


Oil Spills Detection By Means Of Uas And Low-Cost Airborne Thermal Sensors, A. Al-Shammari, Eugene Levin, R. Shults 2018 Michigan Technological University

Oil Spills Detection By Means Of Uas And Low-Cost Airborne Thermal Sensors, A. Al-Shammari, Eugene Levin, R. Shults

School of Technology Publications

This paper provides an overview of oil spill scenarios and the remote sensing methods used for detection and mapping the spills. It also discusses the different kinds of thermal sensors used in oil spills detection. As UAS is becoming an important player in the oil and gas industry for the low operating costs involved, this research involved working with a cheap thermal airborne sensor mounted on DJI Phantom 4 system. Data were collected in two scenarios, first scenario is collecting data in Michigan’s Upper Peninsula at a petroleum company location and the second scenario was an indoor experiment simulating ...


Evaluation Of Spatial Generalization Characteristics Of A Robust Classifier As Applied To Coral Reef Habitats In Remote Islands Of The Pacific Ocean, Justin J. Gapper, Hesham el-Askary, Erik J. Linstead, Thomas Piechota 2018 Chapman University

Evaluation Of Spatial Generalization Characteristics Of A Robust Classifier As Applied To Coral Reef Habitats In Remote Islands Of The Pacific Ocean, Justin J. Gapper, Hesham El-Askary, Erik J. Linstead, Thomas Piechota

Mathematics, Physics, and Computer Science Faculty Articles and Research

This study was an evaluation of the spectral signature generalization properties of coral across four remote Pacific Ocean reefs. The sites under consideration have not been the subject of previous studies for coral classification using remote sensing data. Previous research regarding using remote sensing to identify reefs has been limited to in-situ assessment, with some researchers also performing temporal analysis of a selected area of interest. This study expanded the previous in-situ analyses by evaluating the ability of a basic predictor, Linear Discriminant Analysis (LDA), trained on Depth Invariant Indices calculated from the spectral signature of coral in one location ...


Web-Based Archaeology And Collaborative Research, Fabrizio Galeazzi, Heather Richards-Rissetto 2018 University of York

Web-Based Archaeology And Collaborative Research, Fabrizio Galeazzi, Heather Richards-Rissetto

Anthropology Faculty Publications

While digital technologies have been part of archaeology for more than fifty years, archaeologists still look for more efficient methodologies to integrate digital practices of fieldwork recording with data management, analysis, and ultimately interpretation.This Special Issue of the Journal of Field Archaeology gathers international scholars affiliated with universities, organizations, and commercial enterprises working in the field of Digital Archaeology. Our goal is to offer a discussion to the international academic community and practitioners. While the approach is interdisciplinary, our primary audience remains readers interested in web technology and collaborative platforms in archaeology


Textures Of Transition: Understanding Memorial Spaces In Medellin, Colombia, Hayley Pedrick 2018 University of New Mexico - Main Campus

Textures Of Transition: Understanding Memorial Spaces In Medellin, Colombia, Hayley Pedrick

Shared Knowledge Conference

The past decade has welcomed a surge in the creation of memory and human rights museums with existing scholarship linking concepts of transitional justice and the rush to memorialize. The role of symbolic reparation in transitional justice through memorials in Latin America, in particular, is increasingly prominent at both local and international scales, ranging from recommendations outlined by the Inter-American court system to the state-funded construction of memory sites in rural communities. Colombia, home to the longest ongoing civil conflict in the Americas and currently in transition towards peace, presents unique approaches to symbolic reparation. Apart from land restitution and ...


The Spatialization Of Peace Amidst Militarization And Development In Buenaventura, Colombia., Maria del Pilar File-Muriel 2018 University of New Mexico - Main Campus

The Spatialization Of Peace Amidst Militarization And Development In Buenaventura, Colombia., Maria Del Pilar File-Muriel

Shared Knowledge Conference

Innovative community driven spatial practices are integral to sustaining long lasting peace amidst post-peace-accords times and the continued structural genocide of Afro-Colombians and indigenous communities in Buenaventura, Colombia. This paper illuminates the case of multiple transformative spaces --the Humanitarian Space Puente Nayero and the Comunal Port Punta Icaco in the city of Buenaventura, the rural interethnic humanitarian and biodiversity space of La Esperanza and the Paro Cívico struggle in the district of Buenaventura-- as examples of the creative power of citizens and of the transformative production of spaces of peace that resist local and global violent development and urbanization processes ...


La Gota Que Colma La Caguama: How A Brewery Development Sparked Public Participation In Water Decisions, Anthony J. Meluso 2018 University of New Mexico

La Gota Que Colma La Caguama: How A Brewery Development Sparked Public Participation In Water Decisions, Anthony J. Meluso

Shared Knowledge Conference

Broad and diverse participation of actors is well recognized as a prerequisite for effective and equitable water management. However, scholarship in development and social movement literature in Latin America demonstrates that patterns of participation are shifting to more diverse strategies with non-traditional alliances. This project explores how an internationally owned brewery development sparked renewed participation from various urban and rural groups in the Mexicali Valley. I argue that widespread resistance from different groups was underpinned by neoliberal development tensions that have diminished local agency, but the strong symbolic nature of water, beer and politics provided the catalyst for a social ...


From Accessibility And Exposure To Engagement: A Multi-Scalar Approach To Measuring Environmental Determinants Of Children’S Health Using Geographic Information Systems, Martin Healy 2018 The University of Western Ontario

From Accessibility And Exposure To Engagement: A Multi-Scalar Approach To Measuring Environmental Determinants Of Children’S Health Using Geographic Information Systems, Martin Healy

Electronic Thesis and Dissertation Repository

A growing body of research suggests that increasing the accessibility to health-related environmental features and increasing exposure to and engagement in outdoor environments leads to positive benefits for the overall health and well-being of children. Additionally, research over the last twenty-five years has documented a decline in the time children spend outdoors. Outdoor activity in children is associated with increased levels of physical fitness, and cognitive well-being. Despite acknowledging this connection, problems occur for researchers when attempting to identify the child’s location and to measure whether a child has made use of an accessible health-related facility, or where, when ...


Framing Indigenous Bioenergy Partnerships, Melanie Zurba, Ryan Bullock 2018 The School for Resource and Environmental Studies, Dalhousie University

Framing Indigenous Bioenergy Partnerships, Melanie Zurba, Ryan Bullock

The International Indigenous Policy Journal

The rapidly expanding forest bioenergy sector in Canada promises to support low carbon energy options that also support economic development and Indigenous involvement. Little empirical research has been conducted on Indigenous participation in forest bioenergy in Canada, which points to the need for a nuanced and reliable knowledge base to foster innovation in bioenergy that will contribute to community and economic development. However, before empirical research can be conducted it is important to understand the issues that influence Indigenous participation in the bioenergy sector. We therefore look to and conduct a frame analysis of allied sectors to develop insights about ...


Elevation And Azimuth-Aided Channel Estimation Scheme For Airborne Hyperspectral Data Transmission, Vahid Vahidi, Ebrahim Saberinia 2018 Hanover College

Elevation And Azimuth-Aided Channel Estimation Scheme For Airborne Hyperspectral Data Transmission, Vahid Vahidi, Ebrahim Saberinia

Electrical and Computer Engineering Faculty Publications

A channel-estimation (CE) scheme is proposed to estimate the complex amplitude, Doppler shift, angle-of-departure, and angle-of-arrival of the channel taps for sparse and doubly selective channels for hyperspectral image transmission from unmanned aircraft vehicles (UAVs) to ground stations. The proposed method is dubbed as compressed-sensing joint parameter estimation (CS-JPE) and finds the channel parameters matrix by employing a compressed-sensing (CS)-based method. Afterward, a modified version of the joint parameter estimation (JPE) is proposed as CS-JPE and is dubbed as M-CS-JPE, which employs the elevation-azimuth angles of the line-of-sight channel tap to estimate the channel parameters with higher accuracy and ...


How Much Do Purdue's Trees Weigh? Estimating Biomass In Urban Areas, Jacob Klaybor, Gillian Clark, Brady Hardiman 2018 Purdue University

How Much Do Purdue's Trees Weigh? Estimating Biomass In Urban Areas, Jacob Klaybor, Gillian Clark, Brady Hardiman

Purdue GIS Day

Vegetation plays an important role in urban areas by reducing the urban heat island effect, sequestering carbon emissions, and providing socioeconomic benefits to the surrounding areas. However, the roles and distributions of urban forests have historically been ignored or underestimated. This presentation uses the campus of Purdue University in West Lafayette, IN, as a case study to quantify the aboveground vegetative biomass of campus trees. Tree biomass is calculated with data from the Purdue Arboretum and family-specific allometric relationships based on each tree's diameter at breast height to estimate the total carbon storage available within campus trees. Biomass estimates ...


Digital Commons powered by bepress