Geography 292: Geospatial Analysis with Web GIS

App 1: Parcels and Street Centerlines Viewer

This web app offers a side-by-side map of Delaware County’s parcel data and street centerlines, allowing users to explore the layout and organization of land and infrastructure. I built this using ArcGIS Experience Builder, which let me create a clean layout with both a map and supplementary visuals, like the Delaware County crest and a vintage map image, to make the experience feel more polished and contextual.

Users can:

• Click on individual parcels to view details like acreage, land use, and ownership

• Select street features to identify road names, highways, and street classifications
  
• Use the app to explore the spatial relationship between land divisions and the road network

This tool can be helpful for local planners, real estate professionals, or residents curious about land ownership and how streets and parcels intersect across the county.

https://experience.arcgis.com/experience/9e93ee35c4474c41a858e178718ad14a

App 2: Delaware County Hydrology Dashboard

The second app is a hydrology dashboard that displays rivers, streams, and water bodies throughout Delaware County. Built using ArcGIS Dashboards, it combines a zoomable map with sidebar visuals and a data box that updates with feature-specific information. Users can either scroll through key hydrologic features or click directly on the map to get more info through pop-ups.

Features include:

• A dynamic map interface showing streams, lakes, and other water features

• A sidebar with notable hydrology images and names

• Attribute details like water feature names and area size

This app would be valuable for environmental planners, educators, or anyone interested in the geography of Delaware’s water systems. It provides a visual reference for where hydrologic features are located and how they are distributed across the landscape.

I could not get the link for this to work as it kept saying that there was a data source error. I tried to troubleshoot, but was not able to get anywhere. Included here is a screenshot of the map part however.

Chapter 7 introduced 3D web maps, or web scenes, and demonstrated how they enhance data interpretation by making it more intuitive and visually engaging. I learned about various scene elements like surfaces, textures, and atmospheric effects—especially how textures improved map readability. The chapter also covered Lidar, which uses laser-based point clouds to capture elevation and surface details. I explored Web AppBuilder and found it useful for creating interactive apps with themes and widgets. Tools like the Query and Filter widgets helped make the apps more dynamic and functional. I was especially intrigued by how 3D technologies such as VR, AR, and indoor GIS are being used to build immersive and highly detailed maps.

An idea I had for an application was to use a 3D map to mark Cardinal sightings in my hometown of Atlanta, GA. The bird is extremely common down south, but I would be interested to see if they are still as prevalent as they used to be back in 2013.

For the first part of my final, I created an Attachment Viewer app featuring four historical locations at Ohio Wesleyan University. The project included four attribute fields: the building’s name, a brief description of its historical significance, and its latitude and longitude coordinates. The descriptions were sourced from the official Ohio Wesleyan website. I successfully mapped each point and used the Instant App tool to display them. Overall, the result is a simplified version of the interactive map available on the university’s website. I couldn’t get the link to work so I have provided screenshots below.  

For the second part of my final. This app identifies potential emergency shelter sites across Delaware County, Ohio, and evaluates their accessibility based on proximity to population centers and major roads. It integrates spatial data management, geoprocessing, and digitizing/editing techniques from Chapters 5–7. The final result is an interactive map that helps planners and emergency responders evaluate shelter distribution and identify coverage gaps. The app allows users to click on each shelter and view its attributes, including distance to roads and capacity details. Again I couldn’t get the link to work so I have provided screenshots below. 

In lieu of recent events with the library, I chose to make a survey on where students like to study. Having the library freshman year was quintessential to my education, but I had to quickly adapt. With the class, I was curious where other students turned to. This is the link: https://survey123.arcgis.com/share/fd95f65f47b84959895513a4e8d39efe?portalUrl=https://owugis.maps.arcgis.com.

Secondly, I thought the camera trap data from the redlands was interesting, so I chose to make it applicable to somewhere I am a little more familiar with. Not quite my home, but close to Maryland. I think it is so interesting that the data can be updated every 5 minutes. this is the link https://owugis.maps.arcgis.com/apps/mapviewer/index.html?webmap=fe3447587d2d42208af4cf0407f4b546

Link to Delaware Data Inventory from 291

Application 1: Chapter 3 – Web Experience

My first application is a web experience, or interactive map app, built using ArcGIS Experience Builder that provides users with a comprehensive view of Delaware County, Ohio, displaying important features such as parcels, streets, building outlines, hydrology, and emergency jurisdiction boundaries. Its primary purpose is to assist emergency responders, urban planners, and decision-makers in planning response routes, assessing environmental risks, and understanding jurisdictional responsibilities. By making various datasets available and easily accessible, it enhances situational awareness, allowing users to quickly analyze and access critical location-based information, which can improve response times during emergency situations. To create this web experience, I first downloaded relevant GIS data from the Delaware County GIS Hub, including layers for address points, street centerlines, parcels, building outlines, and hydrology. These datasets were then uploaded and published as hosted feature layers in ArcGIS Online. I used ArcGIS Experience Builder to construct the app, selecting a map-centric template to display the data interactively. The app includes tools such as layer toggles, feature pop-ups, and search functionality, allowing users to explore the data and make informed decisions. I configured various widgets like the Layer List and Feature Info to provide users with an intuitive, easy-to-navigate interface. This tool is now a resource for anyone needing to analyze the spatial relationships between the various data layers in Delaware County, particularly for emergency management and planning purposes.

 

Application 2: Chapter 6 – Dashboard

This ArcGIS Dashboard application provides an interactive visualization of school districts, voting precincts, and tax districts within Delaware County, Ohio. Its primary purpose is to help users explore how these three administrative boundaries overlap and vary across the county. By integrating multiple data layers into a single visual interface, the dashboard enables a clearer understanding of local governance structures and how jurisdictions may impact decision-making in education, elections, and taxation. Viewers can quickly see which areas fall within specific school districts or precincts and how tax districts align with those boundaries. This type of insight can be valuable for county officials, school board members, and residents interested in understanding the spatial organization of public services. After downloading geospatial data for school districts, tax districts, and precincts from Delaware County’s GIS open data portal, the layers were uploaded and styled within a web map. This map served as the foundational element for the dashboard. Within the ArcGIS Dashboards interface, the map was enhanced using interactive elements such as selectors, charts, and filter-driven visualizations. The bar chart enables side-by-side comparisons across district names or areas.

For my first application I created a survey that people living in Delaware can use to file complaints about the schools districts they reside in.

My second application I made a 3D map documenting female Covid-19 cases in Ohio

For my first application, I used an idea from Chapter 1 and I created a map tour involving my personal story. Chapter 1 Application

For my second application, I created a 3D map with ideas from chapter 7. This map shows female population in the United States by county with purple meaning there are more females in the county and they appear higher on the map. Chapter 7 Application

I already completed the Delaware Data Inventory in a previous weekly posting, but here is the link to that posting again.

Have a good summer, everyone!

In chapter 7 we covered 3D in GIS applications. 3D would be an interesting topic to explore, maps are mostly 2D but we live in a 3 dimensional world, so it would make sense to develop maps in the world we recognize in order to get a better visualization in storytelling, map planning, and architectural design. Learning about the feature layers was so cool, it reminded me of GIS 291 during the final chapters where we could add 3D trees and things to our map to give it more dimension and recognize how the map is visualized, it was really fun being able to relearn some of that. 

Application idea: something we could use 3D techniques for in Delaware is viewing population density and how populated town is, where it could be more or less populated in order to build more housing, or protect wildlife and not build where it is unnecessary because of the lack of population in that area.

Spatiotemporal data are data that is collected across both pace and time. It can be collected through observational sensors or simulation models. This can be shown in GIS through live observations that are currently changing and updating. Things like social media, weather events can all be tracked with spatiotemporal data. loT is the network of physical objects that use different data and exchange and collect it. I liked that we were able to connect the different first responders into a web app so they could all coordinate, it really helped me grasp the concept of how GIS uses real time locations and incidents. 

Application idea: Something you could use an application for with spatiotemporal data is changing addresses, people are moving in and out of homes in Delaware, we could be able to track how often people move in and out to create a pattern to potentially improve a neighborhood to increase retention in a neighborhood. Using loT we can collect and exchange the data to create a more connected system. We can view how close parks are, the proximity of a nearby city, public parking and proximity to grocery stores and other shops.

(I thought this was posted already but it never did so I am rewriting it now)

Chapter 1:

This chapter had similarities to what I did in Geog 291, but was different since it is applied to ArcOnline. I started strong but quickly got confused when trying to upload the Redlands data. As I continued, I was able to familiarize myself with each of the tools and discovered there is a lot you can do. I think this chapter was well explained, but lacked some necessary pictures, I felt I needed to better understand what I was doing. As I navigated through 1.4 I ran into another issue, I was unable to complete step 11. I could not find the “select layer field of sort by”; anytime I clicked where it would be, it disappeared. I reviewed other students’ maps in our organization to see what they looked like since mine did not end up looking as it should.

Chapter 2:

For chapter 2 it focused on Smart mapping and storytelling with GIS. The first tutorial was to create a feature layer using geocoding. I had to download the data from the main website onto an external drive. The tutorials were relatively easy compared to the first chapter. In tutorial 2.2 I was able to stylize all of the needed arrows and colors however it didn’t look quite right. I ran into another problem in the third tutorial when trying to use expressions to calculate things. Towards the end of the chapter we created a story about US population change. I had trouble stylizing some things in the story but I believe it looks as it should. I didn’t run into very many problems in the last tutorial the chapter. Overall, the story i created conveyed the proper message asked by the book.

Application:

An application could be made about the population change in Delaware. I’ve heard from many people that Delaware has quickly became a very populated area in a short amount of time. I could create a story map showing how many people have moved here within the last ten years and where they chose to within the city.