Author: amdondero

Chapter 3:

• Web apps allow you to create interactive maps, with objects such as sliders to show how data changes over time, and searches to select specific pieces of data.
• You can use the web app builder to create or modify existing webapps, and use widgets to quickly add features and functionalities to your map that weren’t previously available.
• Chart widgets allow you to display data visualizations beyond just the spatial methods provided by the map.
• Filter and query widgets allow you to parse through the data more efficiently, in order to find the information relevant to your project.

One idea for a web application that could be made using this information would be a map with a timeline showing how the highway system in Ohio has grown over time. Charts could be used to show growth numbers year by year, and a filter widget could be used to select only data from, for example, northeast or central or southern Ohio

Chapter 4:

• Chapter 4 discusses mobile GIS, which has several advantages over traditional desktop based GIS.
• Some of these advantages include the ability to work in areas where it would be infeasible for traditional GIS to operate, the inherent benefits of using a device outfitted with GPS capabilities to collect spatial data, while some of the disadvantages include reduced processing ability, as well as cellular coverage and battery range limitations.
• Mobile GIS also has several unique application types, including VGI, which includes user submitted information like police activity or road accidents, and AR, which overlays additional data onto the world through the mobile device.
• Creating feature layers for Mobile GIS is unique because of the added ability for users to append, update and delete data from their device.
• Additional data infrastructure such as surveys can be integrated into your applications as well, allowing for user input collection.
• Many options exist for data collection, with varying levels of ease of use vs capabilities of the app.

One idea for a mobile GIS application would be an application that would allow users to submit animal sightings at their location, which could be useful for determining rough estimations of populations present in a certain area, if enough people used the application.

Chapter 1:

• One method to create a new feature layer is by importing it into ArcGIS Online
• In your map, you have the options to add layers and tables, change the basemap used, as well as create legends and charts that correspond to your map
• You can also search for and import layers from the ArcGIS database, as well as from living atlas, with the option to change visual characteristics such as transparency, layer style and symbology
• You can share the maps with others within your organization, or publish the map so that anyone can access it.
• You can create story maps that guide the user through your map, with images, videos and other media, similar to a presentation but spatially.

Chapter 2:

• ArcGIS Online has a large variety of templates available, each suitable for different projects such as 3D scenes or collecting and categorizing data.
• Each WebGIS app is formed from 3 components, the basemap, the operational layers and the additional tools specific to that project.
• Living Atlas is an Esri hosted collection of maps, databases and apps that are available for you to add and use within your own apps and maps
• Arcade lets you use expressions to manipulate data that you already have, instead of needing to change the underlying data

One idea I had for a potential application use would be mapping rail lines within Ohio, and cross referencing them with major industry locations, such as steel mills and coal mines.

Below is my attempt at making a map similar to that idea, which has Ohio’s rail lines, as well as markers delineating historical locations throughout the state (Both Layers I found in Living Atlas)

Hi, my name is Aestelle and I am a junior majoring in astrophysics, and I also took GIS 291 earlier this semester.

After receiving the wordpress and ArcGIS emails, I logged into my respective accounts for both services and then completed the quiz and emailed Dr. Krygier. After this, I did the ArcGIS Online Basics training, which explained what ArcGIS Online is and the various functionalities it offers, along with things like the various sharing levels available and when to use each, as well as where to find layers to add to your map.

One use I found for ArcGISOnline was for mapping rail network history: https://journals.sagepub.com/doi/abs/10.7227/tjth.25.1.5, however I couldn’t figure out how to access the article to find any maps.

Another ArcGIS Online application I found was a feature layer showing the locations of the heritage barns in Washington state, which I felt was a cool use of the software.

https://owugis.maps.arcgis.com/apps/mapviewer/index.html?layers=39e31e3c81f34a49a21344100bb46096