Geographic Information Sciences Commons^™

The Southern California Coast, Gilbert Trejo

Humboldt Journal of Social Relations

The purpose of this map was to create a landscape view of my home region of Southern California that adequately displayed the complexity of it’s natural and man-made terrain. One of the challenges I faced was the amount of labeling in the greater Los Angeles (LA) area. I decided to not include any city borders because moving around LA feels more like moving across various neighborhoods and regions than crossing from one city to another. Slanting the text provided more space without making it too difficult to read. The orientation creates a more interesting layout than the usual north-up orientation, …

Salmon Of The Klamath, Melissa Collin

Humboldt Journal of Social Relations

The Klamath is a diverse bioregion widely known for its abundant population of salmon. It extends through the states of Oregon and California, and has a drainage basin of over 15,000 square miles that flows into the Klamath River. The three most prevalent species of salmon in the region (Coho, Steelhead, and Chinook) have all experienced sharp declines in populations since the mid-20th century. This is due to human activity such as commercial fishing, logging, dams, and urban development that has altered the salmon’s historic migration. This map aims to visualize the various waterways and water bodies that flow throughout …

Conflicts On The Klamath, Massimo Lambert-Mullen, Hop Norris

Humboldt Journal of Social Relations

Conflicts on the Klamath is a collaboration between Massimo Lambert-Mullen, a Humboldt State University Geography alumnus, and Hop Norris, a local artist, activist, and water protector based out of Crescent City, California. The inspiration behind this infographic is the complex and rich contemporary history of the Klamath river, including the establishment of reservations and the construction of dams, roads, and monuments that disrupt the flow of salmon and disrespect sacred sites. It is a politically motivated piece that means to convey the cultural and ecological importance of salmon and criticize government and settler actions to disenfranchise local Yurok, Hoopa, and …

Historic Landmarks And Points Of Interest In Mendocino Ca, Jeremy Mcfarland

Humboldt Journal of Social Relations

The Earth’s ocean ties all people together in more ways than one. For centuries, people have been drawn to the ocean for its vast openness and array of resources. Maritime heritage is the protection and preservation of humankind’s past and century old stories of cultures’ use of the ocean. By understanding individual connections to the ocean, more may be inspired to care for it. This map was developed to visualize the unique transition between land and sea, and capture the historic connection of this seascape town.

Book Review, Stanton Morse

Humboldt Journal of Social Relations

Overall, Making Spatial Decisions Using ArcGIS Pro: a Workbook is an excellent text for college-level students who have had a formalized introduction to ArcGIS Pro. The authors expertly provide an expansive list of methods and applicable knowledge yet to be had from previous versions. Surely, the text is not perfect, but what it lacks can be remedied by knowledgeable instruction. Kathryn Keranen and Robert Kolvoord succeed in offering a new lens to view the bright future of ArcGIS Pro to those of us still reluctant to entirely switch.

Cartographies Of Debt: Auto Title Loans And Spatial Inequality, Michihiro C. Sugata

Humboldt Journal of Social Relations

Despite being a decade removed from the 2008 Financial Crisis, an alarming number of Americans are turning to alternative finance service providers (AFSP) for “short term” loans. These loans typically carry triple digit interest rates and can contribute to exacerbating the financial precarity of the borrowers. This article investigates the relationship between the spatial distribution of the AFSP industry and considers the impacts of this saturated presence on the individuals who live in these neighborhoods. Using the Phoenix metropolitan area as a site of exploration, I examine where the industry has pooled and look at the descriptive characteristics of those …

A Geographic Account Of Economic, Health, And Educational Disparities In Hartford’S Sheff Region, Casey D. Cobb

Humboldt Journal of Social Relations

In the current study, I use geographic techniques to examine the distribution of key housing, economic, health, and educational indicators in metropolitan Hartford. I focus in particular on factors that bear upon the lives of children in this area, also known as the Sheff region—a reference to the long-standing Sheff v. O’Neill school desegregation lawsuit. The results reveal substantial disparities in the geographic distribution of important resources and outcomes across the racially and economically stratified region. Despite earnest school desegregation efforts, the opportunities, access, and resources available to children in municipalities across the metro Hartford region remain starkly different. Children …

Mapping Maya Hinterlands: Lidar Derived Visualization To Identify Small Scale Features In Northwestern Belize, Jeremy Mcfarland, Marisol Cortes-Rincon Ph.D.

Humboldt Journal of Social Relations

This paper will discuss the processes and methods of relief visualization of LiDAR-derived digital elevation models (DEM’s) and classification of secondary data to identify archaeological remains on the ancient Maya landscape in northwestern Belize. The basis of the research explores various Geographic Information System (GIS) and cartographic techniques to visualize topographical relief. Graphic terrain maps assist archaeologists with predictive settlement patterns. The Relief Visualization Toolbox (RVT 1.3) aids to visualize raster DEM datasets in the predictive identification and interpretation of small-scale archaeological features. This dataset and methodology can be utilized to answer questions of population estimates, mobility costs, and effectiveness …

Agent-Based Models In Supporting Pedestrian Transportation Planning And Design, Nicholas A. Perdue

Humboldt Journal of Social Relations

Agent-based models offer a new approach to understanding human-urban interactions in transportation systems, allowing individual entities within a system to be characterized with cognitive and behavioral properties. This paper discussed the role of agent-based representations of pedestrian transportation systems, detailing the underlying assumptions and techniques behind different types of pedestrian models and illustrating the differences between aggregate and individual agent representations. It then turns attention to the case study and the development of a cognitive pedestrian model as a way to illustrate the spectrum of potential spatial behaviors that are enabled by material changes to the transportation network. The paper …

A Geospatial Recipe For Identifying Social Values And Fragmentation Issues Of The Friends Of The Dunes Land Trust, Buddhika Madurapperuma, Jess Barger, Melissa Collin, Christine Emerson, Sean Fleming, Brian Murphy

Humboldt Journal of Social Relations

The beach and coastal sand dunes comprise a dynamic and fragile ecosystem that provides a bounty of ecological services. These lands provide protection from coastal erosion and sea level rise, and are home to a rich biodiversity of plant and animal species in addition to their recreational value. The Humboldt Coastal Nature Center and the surrounding coastal dunes (HCNC) are man-aged as a land trust by Friends of the Dunes (FOD). FOD prioritize the restoration of dune habitats and encourages public involvement through community supported education and stewardship programs, guided nature tours, and naturalist training programs. The faculty, students, and …

Introduction, Marisol Cortes-Rincon, Nicholas Perdue

Humboldt Journal of Social Relations

The purpose of this special issue is to highlight the myriad of applications of geographic information systems within the social sciences. As access to geospatial technologies continues to increase, we are seeing new forms of research that highlight how different approaches to spatial analysis can answer complex questions on topics ranging from contemporary urban policy to ancient civilizations.

Full Journal

Humboldt Journal of Social Relations

Geographic Information Systems (GIS) engages with a variety of important policy issues through linking social science data with spatial analysis and by demonstrating the importance of applied GIS in both the public and private sector. GIS, though commonly used in the realms of city planning and natural resource analysis, have a far broader range of applications ranging from analysis of ancient community interactions to modern social media data.

Any Port In A Storm: Vessel Activity And The Risk Of Iuu-Caught Fish Passing Through The World’S Most Important Fishing Ports, Gilles Hosch, Bradley Soule, Max Schofield, Trevor Thomas, Charles Kilgour, Tim Huntington

Journal of Ocean and Coastal Economics

This study assesses the risk of fish from illegal, unregulated and unreported (IUU) sources passing through the world’s most important fishing ports and explores the drivers of this risk.

Like previous studies it has attempted to rank ports and States based on landings and vessel visits reported by governments by using Automatic Identification System (AIS) positional data transmitted by fishing and fish carrier vessels to identify the locations of ports and rank them based on the frequency of visits by foreign-flagged and domestic-flagged vessels. It advances our thinking in that (i) the analysis includes an estimation of the hold capacity …

Aesthetic Perception Of Urban Spaces: New York, Timur Pozhidaev

Theses and Dissertations

Aesthetic perception is an important field of interest in many aspects of everyday human life. It affects individual and social unconscious behavior and is strongly related to the decision-making processes in the human mind. The current study can serve as an important prototype for planning purposes and social and environmental justice among the regional units of New York City. With the current scientific sphere lacking a comprehensive methodology for assessing social superstructure, an aesthetic framework has the potential for success in evaluating the aspects of sustainable and resilient urban development.

Real Time Habs Mapping Using Nasa Glenn Hyperspectral Imager, Reid W. Sawtell, Robert Anderson, Roger Tokars, John D. Lekki, Robert Shuchman, Karl Bosse, Michael Sayers

Michigan Tech Publications, Part 1

The hyperspectral imaging system (HSI) developed by the NASA Glenn Research Center was used from 2015 to 2017 to collect high spatial resolution data over Lake Erie and the Ohio River. Paired with a vicarious correction approach implemented by the Michigan Tech Research Institute, radiance data collected by the HSI system can be converted to high quality reflectance data which can be used to generate near-real time (within 24 h) products for the monitoring of harmful algal blooms using existing algorithms. The vicarious correction method relies on imaging a spectrally constant target to normalize HSI data for atmospheric and instrument …

Satellite Monitoring Of Harmful Algal Blooms In The Western Basin Of Lake Erie: A 20-Year Time-Series, Michael Sayers, Amanda Grimm, Robert Shuchman, Karl Bosse, Gary L. Fahnenstiel, Steven A. Ruberg, George A. Leshkevich

Michigan Tech Publications, Part 1

Blooms of harmful cyanobacteria (cyanoHABs) have occurred on an annual basis in western Lake Erie for more than a decade. Previously, we developed and validated an algorithm to map the extent of the submerged and surface scum components of cyanoHABs using MODIS ocean-color satellite data. The algorithm maps submerged cyanoHABs by identifying high chlorophyll concentrations (>18 mg/m3) combined with water temperature >20 °C, while cyanoHABs surface scums are mapped using near-infrared reflectance values. Here, we adapted this algorithm for the SeaWiFS sensor to map the annual areal extents of cyanoHABs in the Western Basin of Lake Erie for the …

The Use Of Geospatial Modeling And Novel Diagnostics To Detect And Map Risk Factors Of Soil-Transmitted Helminths In Feira De Santana, Brazil, Ryan Harry Avery

LSU Doctoral Dissertations

Soil-transmitted helminth (STH) infections impact billions of people worldwide. The traditional STH control approach is a morbidity control strategy implementing mass drug administration (MDA) programs targeting school-aged children (SAC). In Brazil, this control strategy has decreased STH prevalence to less than 20% in most of the country and providing an opportunity to transition from the morbidity control program and towards a surveillance and response system geared towards STH elimination. Surveillance and response systems geared towards elimination require the implementation higher accuracy diagnostics to detect infection in low-transmission communities, surveillance of entire households, high-resolution modeling at the household-habitat scale, and targeted …

Determining The Effect Of Mission Design And Point Cloud Filtering On The Quality And Accuracy Of Sfm Photogrammetric Products Derived From Suas Imagery, Daniel Shay Hostens

Graduate Theses/Dissertations

This research investigates the influence that various flight plan and mission design strategies for collecting small unmanned aerial system (sUAS) imagery have on the accuracy of the resulting three-dimensional models to find an optimal method to achieve a result. This research also explores the effect that using gradual selection to reduce the sparse point cloud has on product accuracy and processing details. Imagery was collected in the spring of 2018 during leaf-off conditions at six field sites along the North Fork of the White River. The aerial imagery was collected using a DJI Phantom Pro 4 sUAS. Four different image …

Greenway Trail Viewshed Characteristics: Planning Applications Using Gis And Remote Sensing, Aric Addison Beehler

Graduate Theses/Dissertations

This study applies theoretical findings relating greenway trail viewshed characteristics to a proposed greenway trail. Utilizing geographic information systems and remote sensing techniques, this study compares the viewshed characteristics of two proposed routes to connect an existent greenway trail system to Wilson’s Creek National Battlefield in Greene County, MO. Light Detection and Ranging data is then used to map the viewshed of each route and calculate the openness and interconnectedness of each viewshed. High-resolution multispectral imagery is then used to calculate the Normalized Difference Vegetation Index measuring the “greenness” within each viewshed. Finally, parcel-level land use data is used to …

3d Canopy Model Reconstruction From Unmanned Aerial System And Automated Single Tree Extraction, Hai Ha Duong

Graduate Theses/Dissertations

This project aims to develop and assess methodology for spatial modeling and extracting individual trees from high spatial resolution Digital Surface Model (DSMs) derived from unmanned aerial system (UAS) or drone-based aerial photos. Those results could be used for monitoring of vegetative response of forests, grasslands and vineyards to regional and localized fluctuations in climate and seasonality. The primary objective of this research is to extract 3D spatial information using drone-based aerial imagery through photogrammetric methods. UAS flights were taken place at phenologically critical times over several locations owned and managed by Missouri State University (MSU). The 3D DSM can …