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Full-Text Articles in Social and Behavioral Sciences

Toward Energy-Efficient Deep Neural Networks For Forest Fire Detection In An Image, Yali Wang, Chuulabat Purev, Hunter Barndt, Henry Toal, Jason Kim, Luke Underwood, Luis Avalo, Arghya Kusum Das Feb 2024

Toward Energy-Efficient Deep Neural Networks For Forest Fire Detection In An Image, Yali Wang, Chuulabat Purev, Hunter Barndt, Henry Toal, Jason Kim, Luke Underwood, Luis Avalo, Arghya Kusum Das

The Geographical Bulletin

Forest fires cause huge losses and are a serious problem facing many countries worldwide, including the USA, Canada, Brazil, Siberia, and Indonesia, to name a few. Automatic identification of forest fires in an image is thus an important field to research in order to minimize disasters while also helping in mitigation planning and designing rescue tactics. Artificial Intelligence technologies, especially deep neural networks, have emerged recently with promises to detect fires with better accuracy from an image. However, the massive energy consumption of deep neural networks thwarts their widespread adoption, especially when it comes to onsite detection of fire utilizing …


Gis-Based Spatial And Temporal Analyses Of Motor Vehicle Crashes In The Atlanta Metropolitan Region 2017-2021, Heyward Stober, Jeong C. Seong Feb 2024

Gis-Based Spatial And Temporal Analyses Of Motor Vehicle Crashes In The Atlanta Metropolitan Region 2017-2021, Heyward Stober, Jeong C. Seong

The Geographical Bulletin

Motor vehicle crash analysis is among the most insightful metrics for public safety officials, researchers, and drivers. In this article, geographical information systems (GIS) tools were used to study the spatial and temporal trends of traffic crashes and fatal crashes. The methodology involves collecting spatial crash data over time and using computer-based analysis to overlay the road data against various spatial and temporal parameters in the Atlanta metropolitan region. Results show major crash hotspots in the region, such as the cites of Marietta, Kennesaw, and College Park. Hotspots tend to form on interstate highways, while smaller state highways have fewer …


Modeling The Impact Of Ocean Temperature Increases On The Distribution Of Seagrasses Around The Korean Peninsula Using A Machine Learning Technique, Jina Jang, Seohyeon Kim, Jeong Seong Feb 2024

Modeling The Impact Of Ocean Temperature Increases On The Distribution Of Seagrasses Around The Korean Peninsula Using A Machine Learning Technique, Jina Jang, Seohyeon Kim, Jeong Seong

The Geographical Bulletin

Seagrasses are important resources which form a vital part of the ocean ecosystem. They are also considered blue carbon because of their capability of sequestrating carbon. Seagrass distribution can be affected by many factors including ocean temperature. It is highly likely that recent climate change may increase ocean temperature significantly in East Asia and consequently alter seagrass distribution patterns. This study aims at predicting the impact of ocean temperature increases on seagrass habitats around the Korean Peninsula. Using the Maximum Entropy (MaxEnt) Model, seagrass habitat distributions were modeled when sea temperature rises by 1°C, 2°C, 3°C, and 4°C. Results show …


Recovery Of Microtopography Following Prairie Restoration: Implications For Biodiversity Monitoring, Karli Cich, Scott Powell Feb 2024

Recovery Of Microtopography Following Prairie Restoration: Implications For Biodiversity Monitoring, Karli Cich, Scott Powell

The Geographical Bulletin

Tallgrass prairies are often restored from agricultural fields where the natural microtopography has long since been removed. Therefore, our study investigates the degree to which restored prairies recover microtopography. Differences in microtopography were measured using precise elevation data collected from LiDAR to compare differences in microtopography between crop fields, fallow fields, newer restored prairies, and older restored prairies. We also compared plant biodiversity indices between newer and older restored prairies using nested plot vegetation sampling. Our first research question is how microtopography differs between the sites. Our results show that older restored prairies had the most microtopographic variation, followed by …


Predicting Cloud Fraction With Instantaneous Direct And Diffuse Shortwave Solar Irradiance, Jamison Lerma, Emily K. Blackaby, Maosi Chen, Sasha Madronich, Wei Gao Feb 2024

Predicting Cloud Fraction With Instantaneous Direct And Diffuse Shortwave Solar Irradiance, Jamison Lerma, Emily K. Blackaby, Maosi Chen, Sasha Madronich, Wei Gao

The Geographical Bulletin

The purpose of this study is to compare the different performances of three commonly used models (i.e., linear regression, random forest regression, and deep neural network (DNN)) to predict cloud fraction (CF) using ground-based shortwave solar radiation measurements and analyze the importance of the input features. The CF data are obtained from the Surface Radiation Budget (SURFRAD) and the Atmospheric Radiation Measurement (ARM) and the irradiance data from the USDA UV-B Monitoring and Research Program. The study finds that CF of opaque and total clouds can be best predicted using both Random Forest Regression and DNN with the validation R2 …


A Remote Sensing Investigation Of The 2022 Invasion Of Eastern Ukraine On Agricultural Landcover, Michael S. Agbozo, Luke J. Marzen, Chandana Mitra Feb 2024

A Remote Sensing Investigation Of The 2022 Invasion Of Eastern Ukraine On Agricultural Landcover, Michael S. Agbozo, Luke J. Marzen, Chandana Mitra

The Geographical Bulletin

Ukraine-Russian political relations over the years have alternatively experienced periods of tranquility and turmoil with violent conflicts since 1917, including the events of the 2014 annexation of Crimea and the 2022 Russian invasion of the entirety of Ukraine. These conflicts remain developmental threats and their assessment requires multi-perspective analysis. Understanding the spatial dimensions of such conflicts and their consequences on physical and social spaces at varying scales could provide credible scientific impetuses on which targeted post-conflict remediations could be built. This preliminary study therefore takes advantage of the capabilities of satellite remote sensing, to provide quick and effective spatiotemporal analysis …


Prediction Of Traffic Congestion Using A Time-Series Model And Spatiotemporal Data: A Case Study Of The Atlanta Downtown Connector, Yunsik Kim Feb 2024

Prediction Of Traffic Congestion Using A Time-Series Model And Spatiotemporal Data: A Case Study Of The Atlanta Downtown Connector, Yunsik Kim

The Geographical Bulletin

Traffic congestion poses significant socio-economic challenges, and many urban commuters experience time and cost burdens due to traffic jams. Effectively managing and predicting traffic congestion is crucial for contemporary urban planning and operations. This study aims to predict congestion using time-series deep learning models, focusing on a chronically congested road section. The research area is the Atlanta Downtown Connector, a heavily trafficked route passing through the heart of the city of Atlanta. To address issues often associated with sensor and GPS-based data collection, traffic data was obtained from an open-source online map service, Google Maps. A multivariate time-lagged LSTM model …


Open-Source Based Change Pattern Analysis Of Urban Green Spaces Using Landscape Metrics, Mohammad Anwar Alattar Feb 2024

Open-Source Based Change Pattern Analysis Of Urban Green Spaces Using Landscape Metrics, Mohammad Anwar Alattar

The Geographical Bulletin

A growing number of studies have been conducted on urban green spaces (UGSs), given their essential role in mitigating urbanization externalities. The current available methods for acquiring and analyzing UGSs data suffer from several limitations. For example, free satellite imagery exhibits pixel distortion and fails to account for fine-grained structure such as accurate geometry or size. Moreover, official UGSs datasets are typically updated periodically, not continuously. This work provides a Python-derived open-source based analysis for acquiring, modeling and analyzing UGSs change patterns using landscape metrics. To demonstrate the feasibility of the proposed approach, it is applied on the New York …


Evaluating The Use Of Unpiloted Aerial Systems To Detect And Monitor Beech Bark Disease In New England Forests, Isabelle Lopez, Benjamin T. Fraser, Russell G. Congalton Feb 2024

Evaluating The Use Of Unpiloted Aerial Systems To Detect And Monitor Beech Bark Disease In New England Forests, Isabelle Lopez, Benjamin T. Fraser, Russell G. Congalton

The Geographical Bulletin

The American beech (Fagus grandifolia) plays a key role throughout eastern North American forests. However, beech bark disease (BBD) causes widespread mortality of beech trees. We investigated whether imagery collected using an unpiloted aerial system (UAS) could differentiate beech tree health. Reference data were collected from 140 beech trees in New Hampshire and were visually classified as having “no/trace damage,” “moderate damage,” or “heavy damage.” Multispectral imagery was collected from a UAS, and 44 image features were derived for each beech crown. We used machine learning to identify the importance of each feature in distinguishing between the three health classes …


High-Mountain Hazards In The Indian Himalaya: An Assessment Of The Causes And Effects Of The Chamoli Flood In 2021, Christina M. Salzmann, Sarah J. Halvorson, Anna E. Klene Feb 2024

High-Mountain Hazards In The Indian Himalaya: An Assessment Of The Causes And Effects Of The Chamoli Flood In 2021, Christina M. Salzmann, Sarah J. Halvorson, Anna E. Klene

The Geographical Bulletin

On 7 February 2021, a devastating flood severely impacted the Ronti Gad, Rishiganga, and Dhauliganga River Valleys in the northwestern District of Chamoli, India. The flood washed away two hydropower projects and caused more than 200 fatalities. This study assessed some of the causes and effects of this catastrophic flood event and aims to provide further documentation that the event was not caused by a glacial lake outburst flood, as many reports initially indicated. Analysis of high-resolution satellite imagery, digital elevation model (DEM) differencing, and precipitation and temperature data showed that an ice-rock avalanche was released as a result of …


Editors' Note, Jc Seong Feb 2024

Editors' Note, Jc Seong

The Geographical Bulletin

Editors' Note


Volume 64-2 Complete Issue, Nancy Hoalst Pullen Feb 2024

Volume 64-2 Complete Issue, Nancy Hoalst Pullen

The Geographical Bulletin

Complete Issue


Front Matters, Nancy Hoalst Pullen Feb 2024

Front Matters, Nancy Hoalst Pullen

The Geographical Bulletin

Front Matter


Volume 63-2 Full Issue, Casey D. Allen Jan 2024

Volume 63-2 Full Issue, Casey D. Allen

The Geographical Bulletin

The complete issue


Cover, Foreword, Editor's Notes, Casey D. Allen Jan 2024

Cover, Foreword, Editor's Notes, Casey D. Allen

The Geographical Bulletin

Cover, Foreword, Editor's Notes


Reflecting On Interdisciplinary Trends In Artificial Reef Design, Monitoring, And Assessment In The Us Southeast: Insight From Recent Developments And Hope In The Restoring Resilient Reefs Act, Johnathan D. Johnson, Clayton J. Whitesides Jan 2024

Reflecting On Interdisciplinary Trends In Artificial Reef Design, Monitoring, And Assessment In The Us Southeast: Insight From Recent Developments And Hope In The Restoring Resilient Reefs Act, Johnathan D. Johnson, Clayton J. Whitesides

The Geographical Bulletin

Geographical Essay


Volume 63-3 Complete Issue, Casey D. Allen Oct 2023

Volume 63-3 Complete Issue, Casey D. Allen

The Geographical Bulletin

The complete issue of Volume 63, Issue 3, originally uploaded to Gamma Theta Upsilon Novemeber 2022


Cover, Forewards, And Editor Note, Casey D. Allen Oct 2023

Cover, Forewards, And Editor Note, Casey D. Allen

The Geographical Bulletin

Volume 63-3 Cover, Forewords, Table of Contents, and Note from the Editor


Gis-Based Spatial Analysis Of Population Density In Kuwait, 1957 To 2020, Nayef Alghais, Saad Algharib Oct 2023

Gis-Based Spatial Analysis Of Population Density In Kuwait, 1957 To 2020, Nayef Alghais, Saad Algharib

The Geographical Bulletin

Population density is among the most insightful demographical metrics for urban planners, land developers and researchers in the geography sector. In this article, a Geographical Information System (GIS) framework is designed to study the spatial and temporal population density trends and investigate whether any notable patterns may be attributed to the socioeconomic factors prevalent in each period. The methodology involves collecting spatial population data over time and using GIS to overlay the population density changes against various socioeconomic parameters in Kuwait. The results indicate that the population density is strongly correlated to the national and international economic and political conditions …


Aerosol Concentration And Atmospheric Conditions: A Case Study At Granite Island, Michigan, Elizabeth Hoffmann, Fred Denn, Bryan Fabbri, Susy S. Ziegler Oct 2023

Aerosol Concentration And Atmospheric Conditions: A Case Study At Granite Island, Michigan, Elizabeth Hoffmann, Fred Denn, Bryan Fabbri, Susy S. Ziegler

The Geographical Bulletin

The Granite Island Aerosol Robotic Network (AERONET) location became a new ground-based remote sensing aerosol site in 2018, and is the first site to collect aerosol data in Michigan’s Upper Peninsula using a Cimel sun photometer. The purpose of this study was to analyze the first complete year (2019) of AERONET data collected at Granite Island, Michigan, and to seek explanations for sudden increases in aerosol optical depth (AOD) values. The Moderate Resolution Imaging Spectroradiometer (MODIS) satellite imagery, solar irradiance data, and meteorological data were used in conjunction with AERONET data for further validation. Granite Island had fairly low AOD …


Examining The Perspectives Of Practitioners And Educators Toward A Geospatial Competency Matrix: A Q Methodology Approach, Rodney D. Jackson, Thomas R. Mueller Oct 2023

Examining The Perspectives Of Practitioners And Educators Toward A Geospatial Competency Matrix: A Q Methodology Approach, Rodney D. Jackson, Thomas R. Mueller

The Geographical Bulletin

This study intended to provide insight into geospatial practitioners’ and educators’ viewpoints toward the National Geospatial Technology Center of Excellence (GeoTech Center) Geospatial Competency Matrix. These viewpoints are significant since educators and business professionals use workplace competencies for curriculum development, professional certification, and defining workforce requirements. The research question sought to determine the viewpoints toward the geospatial competencies and provides the field an understanding of how practitioners perceive these competency statements. Seventy participants sorted 72 cards (with Geospatial Competency Matrix Statements) on a scale of -6 to 6 and completed two short surveys with demographic and open-ended questions. The data …


“Leaves From My Journal”: William T. Beatty’S Civil War Account Of The 2nd Ohio Volunteer Infantry, H. Jason Combs, Tate Combs, Paul R. Burger Oct 2023

“Leaves From My Journal”: William T. Beatty’S Civil War Account Of The 2nd Ohio Volunteer Infantry, H. Jason Combs, Tate Combs, Paul R. Burger

The Geographical Bulletin

During his time in service, Beatty kept a journal and meticulously recorded dates and key events, though Beatty was not unique in doing so, as diaries, journals, and letters were essential correspondence during the Civil War (Maness and Combs 2010). However, Beatty, who moved to Gibbon, Nebraska following the war in 1872, later shared his original journal entries which were reprinted in the Buffalo County Beacon (Gibbon, Nebraska’s newspaper). Over the course of thirty-three newspaper articles – running from February 1, 1883 to September 21, 1883 – Beatty provided his personal account in the Buffalo County Beacon and referred to …


Of Revolution Or Postcoloniality? Identity Practices Of Algerian Immigrants And Their Descendants In France, Elizabeth Nelson Oct 2023

Of Revolution Or Postcoloniality? Identity Practices Of Algerian Immigrants And Their Descendants In France, Elizabeth Nelson

The Geographical Bulletin

Using qualitative research techniques, this article demonstrates how colonial memory and postcolonial dynamics permeate the everyday lives and encounters of Algerian-origin people in France and inform the ways they conceive of, and experience, social membership and belonging. This work investigates what it means to be a racialized minority in a postcolonial context and to learn and experience the boundaries of ‘Frenchness’ and ‘Algerianness.’ It is based on the narratives of Algerian immigrants who have migrated to Paris, France and their French-born children. The empirical evidence highlights how Algerian immigrants and their descendants encounter and structure their interactions with French society. …


A Seasonal Wind Climatology Of The Great Lakes Region Of The United States: 1990-2019, Anna Allen, Michael A. Davis May 2023

A Seasonal Wind Climatology Of The Great Lakes Region Of The United States: 1990-2019, Anna Allen, Michael A. Davis

The Geographical Bulletin

The Great Lakes region has been the subject of numerous climate related research studies. The seasonal wind and circulation patterns are critical to understanding how weather patterns propagate as well as for potential wind energy generation. Furthermore, wind is a critical component in weather forecasting; thus, additional information on atmospheric circulation tendencies in this area can lead to improvements in weather forecasting. By utilizing monthly average wind speed data from 46 Great Lakes stations, augmented with NCEP/NCAR reanalysis data (Kalnay, et al. 1996; Kistler, et al. 2001), the seasonal differences in wind speeds throughout the region can be analyzed. To …


Cover, Foreword, And Editor Note, Nancy Hoalst Pullen, Mark W. Patterson May 2023

Cover, Foreword, And Editor Note, Nancy Hoalst Pullen, Mark W. Patterson

The Geographical Bulletin

Volume 64-1 Cover, Forewords, Table of Contents, and Note from the Editors


Impacts And Perceptions Of Climate Variability On Shea (Vitellaria Paradoxa) And African Locust Bean (Parkia Biglobosa) In Burkina Faso, Joseph Yaméogo, Isidore Pawendkisgou Yanogo May 2023

Impacts And Perceptions Of Climate Variability On Shea (Vitellaria Paradoxa) And African Locust Bean (Parkia Biglobosa) In Burkina Faso, Joseph Yaméogo, Isidore Pawendkisgou Yanogo

The Geographical Bulletin

This article examines manifestations of climate variability and its impacts on tree species (shea, African locust bean) in agricultural fields through an analysis of the opinion of the field managers. The Likert-type survey form was prepared for this purpose for the collection of primary data in the field. A sample of 110 households out of a total of 480 was selected, and secondary data (rainfall, temperature and wind) were also collected through Burkina Faso’s national meteorological agency. Descriptive statistics were used to analyse the primary data collected. The study revealed that 90% of agroforestry parkland managers perceive climate variability through …


Volume 64-1 Complete Issue, Nancy Hoalst Pullen, Mark W. Patterson May 2023

Volume 64-1 Complete Issue, Nancy Hoalst Pullen, Mark W. Patterson

The Geographical Bulletin

This is the complete volume 64, issue 1 of the Geographical Bulletin.


Heating Up At The Plate: Relationships Between Temperature, Climate Type In Place Of Birth, And Mlb Batting Performance, Nathan M. Hitchens, Reuben J. Allen May 2023

Heating Up At The Plate: Relationships Between Temperature, Climate Type In Place Of Birth, And Mlb Batting Performance, Nathan M. Hitchens, Reuben J. Allen

The Geographical Bulletin

This study seeks to determine whether long-term heat acclimatization affects batting performance of Major League Baseball players based upon the climate in which a player was born. Each player with at least one at-bat from 1980–2018 was linked to a climate class and subdivision based on the Köppen-Geiger climate classification of their place of birth, and the ambient temperature at game time was determined for each game that took place. Games played in temperatures at least one standard deviation below and above the mean were categorized as cold- and hot-weather games, respectively. Common baseball metrics such as batting average, slugging …


Spatial Patterns Of Micromobility Ridership: A Multi-City Analysis, Mohammad Anwar Alattar, Mark Beecroft May 2023

Spatial Patterns Of Micromobility Ridership: A Multi-City Analysis, Mohammad Anwar Alattar, Mark Beecroft

The Geographical Bulletin

Lightweight, electricity-powered vehicles such as electric bicycles and scooters, known as micromobility, are expanding rapidly in urban areas worldwide. Micromobility holds a promising potential in improving transportation by a number of means, including filling public transportation gaps and reducing dependence upon the private car and thereby internal combustion engine emissions. As a result of the proliferation of micromobility sharing schemes around the world, ridership trajectories can be obtained. Through Ridereport (https://www.ridereport.com), datasets have been acquired from several cities (Santa Monica, California, USA; San Francisco, California, USA; Portland, Oregon, USA; Austin, Texas, USA; Auckland, New Zealand; and Melbourne, Victoria, Australia), this …