Slum Area Detection In Dhaka City, Bangladesh, Using Satellite Remote Sensing And Deep Learning,
2025
South Dakota State University
Slum Area Detection In Dhaka City, Bangladesh, Using Satellite Remote Sensing And Deep Learning, Soubhoon Sadeq Shinjini
Electronic Theses and Dissertations
Dhaka City, a rapidly growing megacity and high-density developing area in Bangladesh, faces numerous urbanization challenges. Among these, informal settlements or slum areas pose serious concerns for authorities and policymakers striving to improve living conditions for slum dwellers. Dhaka City’s slums are characterized by high-density, one- or two-story structures made of low-cost materials, often located adjacent to natural water bodies and lacking basic public infrastructure (Ahmed 2014; Iqbal 2014; Jahan 2012). The need for accurate and up-to-date data on these settlements is crucial for researchers and policymakers, particularly for implementing slum upgradation and resettlement programs. However, traditional field surveys for …
Shifting Waters: A 41-Year Time-Series Analysis Of Surface Water Change In The Prairie Pothole Region,
2025
South Dakota State University
Shifting Waters: A 41-Year Time-Series Analysis Of Surface Water Change In The Prairie Pothole Region, Madison Dejarlais
Electronic Theses and Dissertations
The Prairie Pothole Region (PRR) is a landscape defined by a dynamic surface water system, with wetlands, lakes, and rivers playing critical roles in supporting biodiversity, regulating floods, and maintaining hydrological balance. This study conducts a time-series analysis of surface water change in the PPR from 1984 to 2024, using remote sensing tools including Google Earth Engine, ArcGIS Pro, and ENVI. 41 annual surface water presence rasters were compiled into a cumulative dataset, allowing for both year-to-year comparisons and broader trend analysis. Results indicate that the presence of surface water in the PPR has not followed a simple linear trend. …
Satellite And Uas Synergy For Large-Scale Crop Canopy Cover Mapping With Deep Learning,
2025
South Dakota State University
Satellite And Uas Synergy For Large-Scale Crop Canopy Cover Mapping With Deep Learning, Muhammad Ali Irshad
Electronic Theses and Dissertations
No abstract provided.
Remote Sensing - Based Mapping And Analysis Of Winter Cover Crop Adoption For Sustainable Agriculture, Minnehaha County,
2025
South Dakota State University
Remote Sensing - Based Mapping And Analysis Of Winter Cover Crop Adoption For Sustainable Agriculture, Minnehaha County, Belinda Buechler
Electronic Theses and Dissertations
Winter cover crops planted by farmers such as cereal rye, crimson clover, radishes, hairy vetch, and winter wheat are used to conserve and protect the soil during winter. These crops offer numerous benefits such as improving soil health, reducing erosion, fixing nitrogen, increasing carbon sequestration, and weed suppression. Over time, winter cover cropping has been recognized as a sustainable agricultural practice and has gained attention from Federal and State conservation programs, farmers, and non-governmental organizations. Due to their vital benefits, agencies such as the United States Department of Agriculture (USDA), Natural Resources Conversation Services (NRCS) have partnered with cost-share programs …
Methods In Environmental Studies,
2024
University of San Francisco
Methods In Environmental Studies, Erika Dunagan, Maya Mendoza, Posey Graber, Alex Cullins, Emma Mcginnis, Ally Nepomuceno, Isabella Buchan
Featured Student Work
This publication is a collection of undergraduate research conducted in the Methods in Environmental Studies course at the University of San Francisco in Fall 2024. The student-led projects explore the intersections of place, policy, ecology, and cultural identity through applied environmental research methodologies. Topics include a decolonial examination of the Forest Park Mound Group and Indigenous resilience in St. Louis; a comparative study of Navajo cosmology and ecological justice; a social and environmental impact assessment of Costa Rica’s National Decarbonization Plan; a psychogeographical analysis of Golden Gate Park and its impact on the psyche, emotions, behaviour, and health of urban …
William Holmes Interviewing Rosetta Holmes Unm Oral History 300,
2024
UNM
William Holmes Interviewing Rosetta Holmes Unm Oral History 300, William Holmes
Oral Histories HIST 300, Fall 2024
William Holmes interviews his grandmother Rosetta Holmes, a member of the Choctaw Nation, on her upbringing, life, and various stories from her childhood. She goes through how her family ended up in Hugo, Oklahoma. Her small town upbringing, how she met her husband, starting her family, and her education and the various jobs she has worked in her life. This was a project for oral history 300 at the University of New Mexico in which William used this opportunity to hear about his family and learn about his ancestors.
River Confinement And Braiding Loss In Canterbury Region, Aotearoa New Zealand,
2024
University of Western Ontario
River Confinement And Braiding Loss In Canterbury Region, Aotearoa New Zealand, Victoria Barlow, Peter Ashmore
Geography & Environment Publications
In relation to the wider concern that rivers in Aotearoa New Zealand have been narrowed by river control and land-use encroachment, and that iconic braided patterns are being lost, nine braided rivers from the Canterbury region were studied to compare river width, pattern type and braiding intensity between the mid-1900s and the present based on mapping from aerial images. Channel narrowing occurred along >90% (~490km) of the length of the rivers studied, 375km of which were historically braided. In total, the rivers narrowed by an average of 43% (48% for braided reaches). Coinciding with narrowing, braided reaches lost 1.3 channels, …
Using Simulations Of Future Extreme Weather Events To Escape The Resilience Trap: Experimental Evidence From Hong Kong,
2024
Singapore Management University
Using Simulations Of Future Extreme Weather Events To Escape The Resilience Trap: Experimental Evidence From Hong Kong, Terry Van Gevelt, J. Yang, K. N. Chan, L. Li, Fiona Williamson, B. G. Mcadoo, A. D. Switzer
Research Collection College of Integrative Studies
Hong Kong is a hyper-dense coastal city that has long learned to live with a potentially disastrous extreme weather event: tropical cyclones. This was largely a reactionary process, with investments in soft and hard infrastructure made in the aftermath of devastating tropical cyclones. While the experiences of devastating tropical cyclones remain strong in the collective memory of the city, Hong Kong's present-day resilience has led to complacency, especially among the general public. We suggest that Hong Kong may be caught in a resilience trap, where previous success in building resilience may be hindering the city's ability to adapt to the …
Navigating The Anglo-Irish Landscape: Imaginative Geographies In Bram Stoker And Elizabeth Bowen's Novels,
2024
University of Nebraska at Omaha
Navigating The Anglo-Irish Landscape: Imaginative Geographies In Bram Stoker And Elizabeth Bowen's Novels, Natalie Pearson
Theses/Capstones/Creative Projects
There has been great work done by scholars of Anglo-Irish Gothic tradition to assess the place of classic fictional characters within that tradition. Could a character’s identity contain an Irish dimension? Could they be, perhaps, an allegorical embodiment of the Anglo-Irish Protestant Ascendancy or native Irish peasantry? All excellent questions; however, this present study looks to explore a different perspective by considering “place” itself across four Anglo-Irish Gothic novels: that of Bram Stoker’s The Snake’s Pass (1890) and Dracula (1897) and Elizabeth Bowen’s The Last September (1929) and Bowen’s Court (1942). I seek to highlight the physical landscape in each …
Lengthening Atlantic Hurricane Seasons With Earlier Storm Formation Dates Including Implications From 2020,
2024
LSU Health Sciences Center - New Orleans
Lengthening Atlantic Hurricane Seasons With Earlier Storm Formation Dates Including Implications From 2020, Barry D. Keim, L. C. Hamilton, V. M. Brown, P. J. Klotzbach, A. B. Lewis, D. T. Thompson
School of Public Health Faculty Publications
This paper analyzes the formation dates of the nth storm in a sequence for all named North Atlantic tropical cyclones (TCs) and assesses whether the intraseasonal length of the Atlantic hurricane season has changed temporally. The record-breaking 2020 season, with 30 named storms, set records for the earliest third TC formation (Cristobal) and from the sixth TC (Fay) onward. Analysis of season length from 1851 to 2022 identifies only one statistically significant breakpoint detected in the early 1970s, roughly coinciding with the introduction of satellite observations. Since 1970, we also find a trend toward longer North Atlantic hurricane seasons. The …
Effects Of Longitudinal Training Walls On Two-Dimensional Flow Structure, Sediment Transport, And Bed Aggredation Using Numerical Methods And Sediment Core Analyses In Grand River, Michigan,
2024
Louisiana State University and Agricultural and Mechanical College
Effects Of Longitudinal Training Walls On Two-Dimensional Flow Structure, Sediment Transport, And Bed Aggredation Using Numerical Methods And Sediment Core Analyses In Grand River, Michigan, Sumaiya Tul Siddique
LSU Doctoral Dissertations
Longitudinal training walls (LTWs) are structures oriented parallelly with the main flow and separate the channel into two sub-channels. One channel acts as the main navigational channel and the other is considered a secondary side channel. The long-term effects of the LTWs on morphodynamics and deposition remain poorly understood. This study investigated the long-term effects of the LTWs on flow, sediment transport and long-term deposition of the Grand River using numerical approaches and sediment core analysis. The effects of LTWs on 2D flow dynamics and sediment transport were investigated by using numerical approaches. The long-term deposition under the influence of …
Safety First: Unpacking Key Roles Of Arctic Adventure Guides,
2024
University of Iceland
Safety First: Unpacking Key Roles Of Arctic Adventure Guides, Barbara Olga Hild, Betty Weiler Professor
International Journal of Tour Guiding and Visitor Attraction Research
Building on past research on tour guides and guiding, this paper provides an in-depth examination of the safety management role of tour guides leading adventure trips. A review of previous literature identifies broad dimensions of tour guiding and, within these dimensions, specific guiding roles mainly in relation to communication. The current study’s qualitative examination of experienced Arctic guides, however, illustrates how environmental conditions contribute to near misses and points to safety management as an adventure guide’s fundamental role. The findings highlight the need for guide competence and certification and underpin recommendations for research in relation to guide education and practices …
Enhanced Lithological Mapping In Arid Crystalline Regions Using Explainable Ai And Multi-Spectral Remote Sensing Data,
2024
Chapman University
Enhanced Lithological Mapping In Arid Crystalline Regions Using Explainable Ai And Multi-Spectral Remote Sensing Data, Hesham Morgan, Ali Elgendy, Amir Said, Mostafa Hashem, Wenzhao Li, Surendra Maharjan, Hesham El-Askary
Mathematics, Physics, and Computer Science Faculty Articles and Research
Lithological classification is essential for understanding the spatial distribution of rocks, especially in arid crystalline areas. Artificial intelligence (AI) recent advancements with multi-spectral satellite imagery have been utilized to enhance lithological mapping in these areas. Here we employed different AI models namely, Support Vector Machine (SVM), Random Forest Classification (RFC), Logistic Regression, XGBoost, and K-nearest neighbors (KNN) for lithological mapping. This was followed by the application of explainable AI (XAI) for lithological discrimination (LD) which is still not widely explored. Based on the highest accuracy and F1 score of the previously mentioned models, RFC model outperformed all of them, and …
Seasonal Dynamics In Land Surface Temperature In Response To Land Use Land Cover Changes Using Google Earth Engine,
2024
Chinese Academy of Sciences
Seasonal Dynamics In Land Surface Temperature In Response To Land Use Land Cover Changes Using Google Earth Engine, Lei Feng, Sajjad Hussain, Narcisa G. Pricope, Sana Arshad, Aqil Tariq, Li Feng, Muhammad Mubeen, Rana Waqar Aslam, Mohammed S. Fnais, Wenzhao Li, Hesham El-Askary
Mathematics, Physics, and Computer Science Faculty Articles and Research
Changes in land use and land cover (LULC) are critical for evaluating global spatiotemporal trends, especially regarding climate change and urbanization. This study investigates the dynamics of Landsat surface temperature (LST) in response to LULC changes and their effects on the seasonal microclimate in Kasur District, Pakistan. Using the Google Earth Engine platform, we employed a random forest algorithm to detect LULC changes (cropland, forest, built-up, fallow, barren, and water) and analyze seasonal spectral indices from Landsat imagery for 1988, 2002, and 2022. Significant LULC changes were observed, including a 9.8% increase in built-up areas, a 4.2% decrease in cropland, …
Urban Heat And Within-City Residential Sorting,
2024
Singapore Management University
Urban Heat And Within-City Residential Sorting, Stefan Borsky, Eric Fesselmeyer, Lennart Vogelsand
Research Collection College of Integrative Studies
This study presents new causal evidence on how urban heat contributes to sorting within a city. We estimate a discrete choice residential sorting model that includes census-tract fixed effects and controls for open space and green coverage to analyze how differences in urban heat at the census-tract level influence the location choices of New York City homeowners given their race, ethnicity, and income. Our results show clear patterns of residential sorting, with whites and high-income households outcompeting other racial/ethnic groups and low-income households for housing in cooler neighborhoods. Our counterfactual exercise, inspired by Cool Neighborhoods NYC, reveals that heat-mitigation policies …
Reclaiming Healing Spaces: A Phenomenological Study On The Transformative Power Of Outdoor Therapy From The Lived Experiences Of Black Clinicians Working With Black Clients,
2024
National Louis University
Reclaiming Healing Spaces: A Phenomenological Study On The Transformative Power Of Outdoor Therapy From The Lived Experiences Of Black Clinicians Working With Black Clients, Lynn Murphy
Dissertations
This phenomenological study involved assessing the experiences of Black therapists who engaged Black clients in outdoor therapeutic contexts. The study was founded on the existing literature that shows the quality of the therapeutic relationship is pivotal for client retention and the Western standards that have historically favored treatment within indoor environments. To contextualize this research, a comprehensive literature review was commenced, covering topics such as the decolonization of therapy, the historical and present-day relationship between Blacks and the outdoors in the United States, sedentary lifestyles, the psychological benefits of time spent in nature, various types of outdoor therapy, and the …
Gps Accuracy Of Smartphones For Crowdsourcing Research,
2024
California Polytechnic State University, San Luis Obispo
Gps Accuracy Of Smartphones For Crowdsourcing Research, Derron L. Dike
Master of Science in Environmental Sciences and Management Projects
ABSTRACT GPS Accuracy of Smartphones for Crowdsourcing Research Derron Dike Utilizing crowdsourcing with smartphones as a method for field data collection can contribute an array of data for scientific studies and land management applications. This study used crowdsourcing to examine smartphone built-in GPS performance for providing location-specific information with potential forestry applications. The usability of smartphones for GPS data collection in forestry studies or other practical applications is dependent on the level of accuracy required for those applications. A Smartphone Accuracy Trial was designed to test the GPS accuracy performance of current smartphones. Participants used the ArcGIS Field Maps application …
Sensitivity Of Present And Future Seasonal Precipitation Over Central United States To The Representation Of Rocky Mountain Topography,
2024
University of Nebraska-Lincoln
Sensitivity Of Present And Future Seasonal Precipitation Over Central United States To The Representation Of Rocky Mountain Topography, Ranasinghe Disanayakalage Sherly Shelton Ranathunga
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
Precipitation change across the Central United States (USA) is of great interest to the research community. Studies using global climate simulations suggest that the “100th-Meridian”, which separates the “dry west” from the “moist east” will shift to the east as the climate responds to future emissions pathways. However, these simulations are run at relatively coarse resolutions, which do not accurately represent topography. Here, we perform regional simulations using the Weather Research and Forecasting (WRF) model to explore the sensitivity of present and future precipitation patterns across the central USA to the representation of the Rocky Mountains (RM). We …
A Comparison Of Maxent Models For Aedes Aegypti Species Distribution In South America Utilizing Different Bioclimatic And Environmental Variables,
2024
East Tennessee State University
A Comparison Of Maxent Models For Aedes Aegypti Species Distribution In South America Utilizing Different Bioclimatic And Environmental Variables, Matthew Beer
Electronic Theses and Dissertations
Aedes aegypti is the principal vector for dengue transmission across large areas of the world. Understanding where this critically important vector lives is paramount to preventing the continued expansion of dengue globally. Using 1981-2010 bioclimatic (bioclim) variables, as well as additional environmental variables and elevation data, multiple MaxEnt models were constructed for Ae. aegypti within the South American continent to identify ecologically important variables and areas of persistent high suitability. All models had acceptable AUC scores (> 0.70), indicating accurate model fitting. Annual mean precipitation and temperature were found to be important model variables; however, when added, humidity became the …
Identifying Watershed And Climatic Factors That Influence Headwater Streams In The San Bernardino National Forest - A Framework For Adaptive Management And Conservation,
2024
California State University, San Bernardino
Identifying Watershed And Climatic Factors That Influence Headwater Streams In The San Bernardino National Forest - A Framework For Adaptive Management And Conservation, Christine Sue Seeger
Electronic Theses, Projects, and Dissertations
Headwater streams play a significant role in overall watershed condition. These streams are critical freshwater resources and are imperative for human and ecosystem health. Seasonal variability in climate patterns is becoming increasingly more common as the effects of climate change are studied. The phenomenon known as “weather whiplash,” prolonged periods of drought followed by a sudden increase in precipitation, creates additional challenges for human and ecosystem conditions. Factors adversely impacting headwater streams include climate change, drought, wildfires, and human influence. While climate change continues to be studied, little is known about how weather whiplash patterns affect headwater streams in Southern …
