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Articles 1 - 30 of 141

Full-Text Articles in Geographic Information Sciences

Caribou Migration And Non-Local Hunting In Northwest Alaska: A Gis Analysis Of Hunting Activity And Its Relationship With Caribou Migration Corridors, Brittney L. Jiménezszabo Nov 2026

Caribou Migration And Non-Local Hunting In Northwest Alaska: A Gis Analysis Of Hunting Activity And Its Relationship With Caribou Migration Corridors, Brittney L. Jiménezszabo

Geography and the Environment: Graduate Student Capstones

Indigenous Alaskans rely on subsistence hunting for food, with Barren-ground caribou making up approximately 27% of their diet. It is believed by subsistence hunters that non-local hunting is forcing a change in caribou migration behavior. This study examined non-local harvesting records from 2013 – 2025 in the northwest and interior Game Management Units (GMU) and Alaksa’s Western Arctic Caribou Herd (WACH) migration range data to answer the question, is there a spatial relationship between non-local harvests and WACH migration behavior. Mixed methods included spatial autocorrelation and local statistics. Findings led to the rejection of the null hypothesis which will help …


From Disaster To Resilience: Developing Smart Settlements In The Himalayas, Keshav Bhattarai, Ambika P. Adhikari Sep 2026

From Disaster To Resilience: Developing Smart Settlements In The Himalayas, Keshav Bhattarai, Ambika P. Adhikari

Himalayan Research Papers Archive

Nepal’s catastrophic 26 August 2026 Bhote Koshi–Trishuli flood should be understood not only as a humanitarian tragedy but also as a potentially major turning point in updating national settlement and reconstruction policy. Engineers and scientists have described the floods as a glacier–bedrock collapse that triggered an ice-rock avalanche and debris flow. As per the live updates on September 7, 2026, the total death toll was 1,355, and 4,996 people were missing (The Hindu, 2026). Indian and Nepali rescuers worked urgently to locate and rescue people buried under hydropower tunnels, buildings, mud, and landslide debris.

UN News reported on September 3, …


From Himalayan Catastrophe To National Resilience: Lessons From The 2026 Bhote Koshi And Trishuli River Floods In Nepal, Keshav Bhattarai, Ambika P. Adhikari Sep 2026

From Himalayan Catastrophe To National Resilience: Lessons From The 2026 Bhote Koshi And Trishuli River Floods In Nepal, Keshav Bhattarai, Ambika P. Adhikari

Himalayan Research Papers Archive

On the morning of 26 August 2026, the mountains above Nepal’s northern frontier delivered a disaster of almost unimaginable speed and scale. A massive mass of ice, rock, and sediment detached in the high Himalayan terrain near the Nepal–Tibet border, descended roughly 1,200 metres, interacted with the Lhende Khola system, and generated a debris-rich flood that surged through the Bhote Koshi and Trishuli river corridors, destroying settlements, markets, roads, bridges, hydropower facilities, and an international border crossing and transforming them into fields of mud, boulders, and wreckage within minutes (ICIMOD, 2026b; Reuters, 2026a). Satellite analysis indicates that a substantial section …


Who Bears The Burden: Tax Incidence And Water Governance In The Middle Rio Grande Conservancy District (Mrgcd) Within Bernalillo County, Michael W. Wilson Jul 2026

Who Bears The Burden: Tax Incidence And Water Governance In The Middle Rio Grande Conservancy District (Mrgcd) Within Bernalillo County, Michael W. Wilson

Economics ETDs

This study examines how property-value-based assessments within a large western irrigation and flood-control district distribute fiscal burdens across property owners. The empirical analysis is restricted to Bernalillo County within the Middle Rio Grande Conservancy District (MRGCD), using parcel-level administrative data from fiscal year 2025 merged with 2021 irrigation service records and geospatial information. The analysis classifies 34,397 parcels by irrigation status, agricultural valuation enrollment, and primary use to evaluate whether non-irrigating residential and commercial parcels, including renter-occupied properties that lack direct irrigation access, bear a disproportionate share of financial responsibility for a district whose first listed priority under their primary …


Redeveloping Mississippi: A Case Study On Brownfields In Central & Southern Mississippi, Sahrah R. Yeroozedek May 2026

Redeveloping Mississippi: A Case Study On Brownfields In Central & Southern Mississippi, Sahrah R. Yeroozedek

Master's Theses

Brownfields, or properties that are or possibly are contaminated with dangerous materials, represent a common obstacle for communities in Mississippi. The real or potential presence of contaminants at these sites often deters investors due to costly cleanup requirements (EPA, n.d. -b). The Environmental Protection Agency (EPA), through its Brownfield Revitalization Program, implemented guidelines for covering the costs and labor associated with the remediation of these properties. The EPA is not, however, responsible for redevelopment that supports long-term environmental and economic sustainability. Although the EPA maintains inventories of all Brownfields, there is also no comprehensive database of Brownfields and their current …


On The Paleontology Of Belize, Alson Ovando May 2026

On The Paleontology Of Belize, Alson Ovando

Electronic Theses and Dissertations

Paleontology can be considered an underrepresented and emerging area of science in Belize. A primary aim of this thesis is to provide a background of paleontology in Belize and present the first comprehensive study of Quaternary vertebrate fossils known from the country. Quaternary fossil sites across Belize include caves, rivers, and sinkholes. In addition to reviewing and assessing material from known sites, this thesis presents new information and discoveries that were made while investigating Belize’s Quaternary fossil record. This thesis also includes a geospatial model depicting ecoregions in Belize during the last glacial maximum. Overall, the results presented here demonstrate …


Investigating The Relationship Between Noun Classes And Plant Folk Taxonomy In Chasu Language Of Kilimanjaro Region In Tanzania, Peter Rabson Mziray Nov 2025

Investigating The Relationship Between Noun Classes And Plant Folk Taxonomy In Chasu Language Of Kilimanjaro Region In Tanzania, Peter Rabson Mziray

Journal of Humanities and Social Sciences

The current study investigates the relationship between noun classes and plant folk taxonomy in Chasu (G 22). The study focuses on two objectives: the first objective is to describe the plant folk taxonomy in Chasu and the second objective is to determine the relationship between noun classes and plant folk taxonomy in Chasu. Data were collected from rural villages in Same and Mwanga districts by using free listing, field interviews (jungle-walk-and-identify), and written texts containing Chasu plant names. The findings reveal that Chasu folk taxonomy reflects different ethnobotanical categories; including a unique beginner which is mmea/mimea ‘plant(s)’, and three life …


Hybrid Geographies And Nature In The City: A Tale Of Two Greenspaces In Louisville, Ky., Rebecca Dixon Aug 2025

Hybrid Geographies And Nature In The City: A Tale Of Two Greenspaces In Louisville, Ky., Rebecca Dixon

Electronic Theses and Dissertations

Many conservation initiatives position nature and the urban as opposing constructions, which means the possibilities where cities can work with nature are often overlooked. This study uses the lens of relational geographies to examine nature in the city by comparing two greenspaces in the Beargrass Creek watershed in Louisville, Kentucky: Waterfront Botanical Gardens and the Louisville Nature Center. The two organizations are compared by using a combination of content analysis, discourse analysis, and GIS flood analysis methods to determine how their geographical location and history affect the ways in which the dynamic between nature and culture is reproduced. Results show …


Remotely-Sensed Urbanization And Local Perceptions Of Change From 1985-2024 In Southern Indiana., Marlea Ferber Aug 2025

Remotely-Sensed Urbanization And Local Perceptions Of Change From 1985-2024 In Southern Indiana., Marlea Ferber

Electronic Theses and Dissertations

This study is focused on the land cover change of non-built land cover being transformed into built land cover in two counties in Southern Indiana using mixed methods. Remote sensing was used to identify and quantify land cover change, and interviews were used to understand local perceptions of the physical land cover changes. The study area is situated along the rural-urban continuum with Louisville, Kentucky across the Ohio River. It is important to quantify the amount of land change conversion to built settlement as patterns and rate of urbanization help us to better manage transitions along the rural-urban continuum, but …


The Dynamics Of Urbanization And Changes In Ekistics Elements: A Case Study Of Surakarta City, Sarah Astita Jul 2025

The Dynamics Of Urbanization And Changes In Ekistics Elements: A Case Study Of Surakarta City, Sarah Astita

Cities and Urban Development Journal

Urbanization has become a driving force behind significant spatial, environmental, and socio-economic transformations in urban areas, including Surakarta, the most densely populated city in Central Java. The rapid increase in population and urban expansion has led to drastic changes in land use and the structure of human settlements. This study aims to analyze the impact of urbanization on the ekistic elements of Surakarta (nature, humans, society, space/shells, and networks) and how these changes manifest spatially over time. A descriptive qualitative approach is employed using literature analysis and the interpretation of Landsat satellite imagery from 2011 and 2022. The findings show …


Protecting Cultural Heritage In A Changing Climate: A Risk Assessment Model For Galleries, Libraries, Archives, And Museums In Florida, United States, Emily E. Fisher Jul 2025

Protecting Cultural Heritage In A Changing Climate: A Risk Assessment Model For Galleries, Libraries, Archives, And Museums In Florida, United States, Emily E. Fisher

LSU Master's Theses

The aim of this research is to develop a climate threat risk assessment scale for galleries, libraries, archives, and museums within the State of Florida. Current research neglects the localized impact of tropical cyclones, inland flash flooding, and exposure to SLR on cultural institutions. Tropical cyclone events bring in flooding, intense wind speeds, and power outages which affect these institutions. Tropical cyclone data from the National Hurricane Center are used to represent historical wind occurrence. Finally, flash flood warning data are used to represent the flooding likelihood in each county. Each threat is assessed individually across Florida counties. The range …


Cannabis Impacts On Native Lands: On The Need For Inclusion Of Native Perspectives In Extension Work, Jeremy Sorgen, Seth Larosa, Jennifer Sowerwine, Van Butsic, Peter Nelson, Melanie Mccavour, Shasta Gaughen, Anna Starkey May 2025

Cannabis Impacts On Native Lands: On The Need For Inclusion Of Native Perspectives In Extension Work, Jeremy Sorgen, Seth Larosa, Jennifer Sowerwine, Van Butsic, Peter Nelson, Melanie Mccavour, Shasta Gaughen, Anna Starkey

Journal of Extension

This article highlights the need for Cooperative Extension to increase awareness of Tribal concerns around activities that impact land, natural resources, and water. A research team at UC Berkeley worked with a Tribal Advisory Committee to conduct a survey of Tribal representatives’ perceptions of cannabis impacts on Native lands and cultural resources. The results show that there is widespread concern among Native communities about the environmental impacts of cannabis cultivation, especially to water quality, access, and availability. These concerns underscore the need to include Native communities in Extension’s agricultural and natural resource activities across all regions and sectors.


Gis And The 1944 U.S.–Mexico Treaty: Rethinking Transboundary Governance Under Climate And Demographic Stress, Pedro L. Sarabia May 2025

Gis And The 1944 U.S.–Mexico Treaty: Rethinking Transboundary Governance Under Climate And Demographic Stress, Pedro L. Sarabia

Master's Theses

This thesis examines the structural limitations of the 1944 U.S.–Mexico Water Treaty in the context of intensifying climate stress and growing population demand. Using GIS-based raster analysis of precipitation from 1981 to 2024, it maps hydrological trends in treaty-bound basins—particularly the Rio Grande and Lower Colorado—which exhibit persistently low and variable precipitation. These conditions, coupled with institutional rigidity, threaten the sustainability of binational water management. In addition to quantitative analysis, the study includes a qualitative assessment of transboundary governance dynamics, highlighting how institutional fragmentation and policy contention impede adaptive responses. The Treaty’s current surface-water-only framework excludes groundwater management, real-time data …


Who Owns The Wind: The Absence Of Community Wind Farms In California, Sky Berry-Weiss May 2025

Who Owns The Wind: The Absence Of Community Wind Farms In California, Sky Berry-Weiss

Master's Projects and Capstones

Community ownership structures for wind farms have been around for decades, particularly in European countries, due to high socioeconomic benefits. Given these significant benefits, one might expect community wind to thrive in the United States—especially in a state like California, which prides itself on progressive climate policy and renewable energy leadership. Yet utility-scale community wind remains largely absent from research on California’s energy system, raising questions about its existence in the state. To pinpoint how many utility-scale community owned wind farms are in California, this study surveys every operational wind turbine in the state. After classifying each wind farm by …


Climate Change And Social Vulnerability: A Case Study Of The Mexico Lerma-Cutzamala Region, Monica Munoz Miranda, Milagros Becerra May 2025

Climate Change And Social Vulnerability: A Case Study Of The Mexico Lerma-Cutzamala Region, Monica Munoz Miranda, Milagros Becerra

Sustainability and Social Justice

Climate change is reshaping precipitation patterns in Mexico, with significant regional and seasonal variations, leading to notable impacts on different components of the hydrological cycle for the whole country. The project focuses on assessing climate change and social vulnerability in the Mexico-Lerma Cutzamala hydrological region, an area that plays a critical role in the water supply to the Mexico City Metropolitan Area and has faced water scarcity issues for years. The analysis was conducted at a municipal level through a study area of 210 municipalities, extended on approximately 31,305 sq.km, with a population of over 23 million people. Using geospatial …


Territorio Anfibio Y Agroalimentario. La Ruralidad Cenagosa, Cristan Abad Restrepo Apr 2025

Territorio Anfibio Y Agroalimentario. La Ruralidad Cenagosa, Cristan Abad Restrepo

Educación

Las comunidades que habitan los ecosistemas cenagosos gestionan su vida en conjunto con el agua. Existe un espacio relacional donde todo es interacción, de allí que el bienestar de las poblaciones depende de la calidad del agua de las ciénagas, de la producción del pescado y de la biodiversidad. Sin estas condiciones, los territorios anfibios no pueden reproducir la vida. Cuando el río, el caño y la ciénaga no realiza el intercambio hídrico, las comunidades entran en crisis, porque materialmente depende de esta para sobrevivir. Gestionar esta relación es fundamental para garantizar la vida local. Esta cartografía social del corregimiento …


Impacts Of Extreme Weather Conditions On Coastal Fisheries Near Bayou Teche, Louisiana From 2019–2023, Georgia C. Davis Apr 2025

Impacts Of Extreme Weather Conditions On Coastal Fisheries Near Bayou Teche, Louisiana From 2019–2023, Georgia C. Davis

LSU Master's Theses

The region of Southcentral Louisiana, particularly around Bayou Teche, thrives on its commercial and recreational fisheries. These fisheries are occasionally subject to events like extreme weather that cause sudden and unexpected losses (NOAA Fisheries, 2024a). Between 2019 and 2023, a series of extreme weather events impacted southcentral Louisiana near Bayou Teche. This series of extreme events includes Hurricane Barry (2019), Hurricane Laura (2020), Hurricane Delta (2020), Hurricane Zeta (2020), Hurricane Ida (2021), and a United States Drought Monitor (USDM) D4 drought (2023). This study analyzes the impacts of the extreme weather series on coastal fish observed species richness (SR) in …


Spatial Implications Of Potential Treeline Campfire Restrictions In Selected Usfs-Managed Colorado Wildernesses, Rebecca Hippensteel Jan 2025

Spatial Implications Of Potential Treeline Campfire Restrictions In Selected Usfs-Managed Colorado Wildernesses, Rebecca Hippensteel

Masters Projects

High-elevation ecosystems in Colorado’s Wilderness areas are ecologically sensitive and particularly vulnerable to campfire impacts, which can damage vegetation, alter soil chemistry, and degrade wilderness character. This study presents a preliminary proof of concept evaluating the spatial implications of banning campfires at or above 11,000 feet—used here as a proxy for treeline—in twelve U.S. Forest Service-managed Wilderness areas. Using 30-meter resolution Digital Elevation Models from the USGS National Map and Earth Explorer, a raster-based analysis in ArcGIS Pro identified and quantified acreage above 11,000 feet. Across the twelve Wilderness areas, 268,601 acres were found to lie above treeline, representing an …


Wildlife Distribution Mapping And Analysis In Gorongosa National Park, Mozambique, Using Site And Satellite Imagery Data, Pinho Joaquim Munhequeira Mr Jan 2025

Wildlife Distribution Mapping And Analysis In Gorongosa National Park, Mozambique, Using Site And Satellite Imagery Data, Pinho Joaquim Munhequeira Mr

Murray State Theses and Dissertations

One of Mozambique's most important conservation sites, Gorongosa National Park has seen critical ecological changes over the past several decades resulting from climate variability, habitat loss, and political instability. This research integrates Geographic Information Systems (GIS) and remote sensing to examine the relationship between vegetation dynamics and wildlife population, and distribution. The main goals of this study are to evaluate the spatial distribution of particular wildlife species: buffalo (Syncerus caffer), elephant (Loxodonta africana), hippopotamus (Hippopotamus amphibius), and zebra (Equus quagga), and determine the impact of vegetation density and land cover on their …


Wolverine Habitat Suitability Analysis In Lake County, Colorado, Using Gis, Jake Hostnik Aug 2024

Wolverine Habitat Suitability Analysis In Lake County, Colorado, Using Gis, Jake Hostnik

Geography and the Environment: Graduate Student Capstones

This project explores the reintroduction of the wolverine (Gulo gulo luscus) to Colorado’s mountainous regions, where the species has been extirpated due to habitat destruction and human activities. The study uses Geographic Information Systems (GIS) to identify optimal habitats for wolverine reintroduction, considering factors like snowpack duration, prey availability, and human disturbance. By creating a GIS-based habitat suitability model, this research will guide conservationists in selecting reintroduction sites. The project addresses the species' role in maintaining alpine ecosystem balance and contributes to the broader understanding of biodiversity restoration in the face of climate change. Results will inform future conservation planning …


Gps Accuracy Of Smartphones For Crowdsourcing Research, Derron L. Dike Aug 2024

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 …


A Study Of The Impact And Mitigation Strategies For Community-Defined Historic Places At Immediate (Within Three Decades) Risk Of Sea Level Rise, Isaac Quaye Aug 2024

A Study Of The Impact And Mitigation Strategies For Community-Defined Historic Places At Immediate (Within Three Decades) Risk Of Sea Level Rise, Isaac Quaye

All Theses

The rising sea level casts formidable threats on community-based historic places within coastal communities. These community-defined historic places derive their meaning from local values and are more recognized within the local community. Unlike recognized iconic historic places, these resources are confronted with inadequate resources to address the impacts of punctuated climate events. This study investigates the imminent threats posed by sea level rise (SLR) to community-defined historic places within the next three decades (2025) and explores mitigation strategies proposed by stakeholders. The study used a GIS-based (enhanced bathtub model) to model the impact of coastal inundation on three historic places …


Foreign Object Debris: A Spatial Analysis Of Wildlife At Seatac Airport, Eli Elias Jun 2024

Foreign Object Debris: A Spatial Analysis Of Wildlife At Seatac Airport, Eli Elias

Geography and the Environment: Graduate Student Capstones

This study investigates the relationship between birds and prey within the airport environment at Seattle-Tacoma International Airport (SEATAC). In 2023, instances of bird and prey activity near Runway 16C/34C were recorded using Foreign Object Debris (FOD) detection radar. The study stems from the importance of safety within the airport environment and analyzing these relationships to better protect people and mitigate aircraft damage. Runway 16C/34C is the runway of focus as it is the only runway equipped with FOD detection radar. Temperature and rainfall averages acquired from the National Weather Service (NWS) were also used to expand this analysis. The results …


Gis-Based Dashboard For Data Analysis And Visualization At The Water Hub In Franschhoek, South Africa, Liliana Rosa Simon Jun 2024

Gis-Based Dashboard For Data Analysis And Visualization At The Water Hub In Franschhoek, South Africa, Liliana Rosa Simon

Geography and the Environment: Graduate Student Capstones

This capstone project analyzes the land use change in the Franschhoek Valley, South Africa, and implements this information into an ArcGIS Experience Builder Dashboard. The development of an ArcGIS Experience Builder is utilized as a tool for improved spatial data communication at The Water Hub. An increase in urban development in the informal settlement upstream of the Stiebeuel River in the catchment basin north of the Water Hub research institute is found. The capstone uses geographic information systems, remote sensing, and ArcGIS Experience Builder to integrate spatial data into the Water Hub’s standard operating procedures. It highlights the importance of …


Unearthing The Past: A Comprehensive Study Of Natural And Anthropogenic Changes At An Archaeological Site Through Hydrogeologic Connectivity Utilizing Gis, Mehlich Ii Phosphorus Extractant, And Ph, Dana L. F. Herren Apr 2024

Unearthing The Past: A Comprehensive Study Of Natural And Anthropogenic Changes At An Archaeological Site Through Hydrogeologic Connectivity Utilizing Gis, Mehlich Ii Phosphorus Extractant, And Ph, Dana L. F. Herren

Theses

This thesis aims to thoroughly analyze the Mehlich II Phosphorus Extractant and pH levels at the Bains Gap Village Site in Anniston, AL., while examining the impact of various environmental factors and human activities on them. Phosphorus is often used in archaeology as an indicator of human activity. Soil core samples were collected to analyze anomalies in phosphorus levels.

To establish any relationships, phosphorus and pH levels from soil cores were correlated with findings from past excavation units and features. The potential effects of hydrogeologic connectivity on soil phosphorus and pH levels were investigated. Geospatial technologies were used to manage …


The Ghanaian War Against Malaria: A Geospatial Approach To Malaria And Healthcare Access In Ghana, Emmanuel Aklie Apr 2024

The Ghanaian War Against Malaria: A Geospatial Approach To Malaria And Healthcare Access In Ghana, Emmanuel Aklie

Theses

This geospatial research project aims to analyze the complex factors influencing malaria incidence in Ghana, including healthcare access, cultural beliefs, and preventive measures. Using GIS mapping and spatial analysis, the study examines malaria distribution and healthcare facility locations to identify hotspots and access inequalities. Combining quantitative data from sources like Demographic and Health Surveys with qualitative methods like surveys and interviews, the project analyzes the relationship between malaria prevalence and vaccination rates, bed net usage, and cultural views on treatment. By taking a comprehensive approach focused on evidence-based insights, the research seeks to inform targeted interventions by the Ghanaian government …


Effects Of Social Media Use Disparities On Community Resilience To Disasters, Kejin Wang Mar 2024

Effects Of Social Media Use Disparities On Community Resilience To Disasters, Kejin Wang

LSU Doctoral Dissertations

With the rapid development of social media, many researchers chose to use social media data to conduct studies of disaster resilience. This dissertation addresses three fundamental challenges related to social media use and disaster resilience analysis including: how the spatial analysis scale affects the results of social media use disparity and its impacts on disaster resilience; how different vulnerability and resilience measurement methods can generate very different results; and how social media use disparity can be identified to help improve the fairness of AI-based emergency rescue model development. Therefore, the first part of the dissertation measured the relationships between disparities …


Inventory Of Western United States Glaciers- 2020, Shrinidhi Ambinakudige, Bernard Abubakari Jan 2024

Inventory Of Western United States Glaciers- 2020, Shrinidhi Ambinakudige, Bernard Abubakari

CAS Publications

The dataset employed for delineating glacier boundaries in the Western United States comprises a compilation of original Sentinel-2 images obtained from the European Space Agency's Copernicus website. These images were instrumental in generating the glacier inventory. Additionally, the dataset includes a Python and R script specifically crafted for processing and classifying Sentinel images. The outcome of this process is represented in an ESRI shapefile, which contains an inventory of glaciers extracted from Sentinel images.


A Tale Of Two Working Landscapes, Sage C. Sutcliffe Jan 2024

A Tale Of Two Working Landscapes, Sage C. Sutcliffe

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.


Development Of A Historic Digital Elevation Model (Hdem) From Archival Aerial Imagery Over The Black Mountain Alluvial Fan, Canada, Emma Menio Dec 2023

Development Of A Historic Digital Elevation Model (Hdem) From Archival Aerial Imagery Over The Black Mountain Alluvial Fan, Canada, Emma Menio

Graduate Theses and Dissertations

In a rapidly changing Arctic, reconstructing landscapes pre-warming is essential to understanding impacts due to climate-inducted geomorphic change. High-latitude elevation datasets extend temporally back to the 2000s, while region-wide warming became measurable in the 1980s. Historic aerial imagery archives provide datasets of high-resolution imagery from the mid- to late- 1900s with stereo-capability that can be harnessed to create historic digital elevation models, or hDEMs. A major issue with reconstructing a surface from the past is finding a way to constrain it in space, given a lack of ground control from that era, especially at high latitudes. The main purpose of …