Author: amdondero

Chapter 7:

• 3D scenes are an important part of GIS, since they allow for another dimension of data visualization, and thus ArcGIS Online allows you to make 3D web scenes.
• 3D scenes can be grouped into 2 categories, Photorealistic, and Cartographic, and depending on scope can also be separated into global and local categories.
• 3D GIS is helpful for displaying conditions like topographic height, visibility, or for giving additional insight that a 2D map would be unable to provide
• There are many ways to display 3D layers, such a rasters or point cloud images, or even using 3D objects, each with distinct advantages and disadvantages
• VR and AR can also be used in conjunction with 3D GIS, allowing for users to view data as if they were within the scene.
• Indoor 3D GIS has important applications in warehouse management, where it can be used to effectively map and manage resources within a building.

One application that could be created using a 3D scene would be a topographic map of Delaware county with the rail lines overlaid on top of it, in order to give a better understanding of the various track grades present throughout the county.

Chapter 5:

• On premises and hybrid web GIS are two alternative forms of ArcGIS, where the infrastructure used to host ArcGIS Online and its capabilities is owned by the organization using it, rather than Esri’s own hosting
• This has a variety of uses, including for organizations with unreliable internet access, or in the case where enterprise ArcGIS is needed, to access additional functionalities such as geoprocessing and image services, or for sensitive or secure data.
• ArcGIS Enterprise can be deployed either on local or cloud infrastructure, and is designed to integrate with cloud hosts such as AWS or Microsoft Azure
• There are many components to ArcGIS Enterprise, such as the server that hosts it, Portal, Web Explore and Data Store
• Enterprise can host a variety of data types, including specialized feature layers, and allows for interdepartmental operability through use of groups
• By first joining an Enterprise portal, and then sharing layers, you can add data to an ArcGIS enterprise group.

Chapter 6:

• Spatial-temporal data is GIS data collected where both time and location are important factors.
• This includes data like current traffic conditions, changing temperatures, weather or even things such as urban growth or road development
• IoT is the Internet of Things, which is a term describing the distribution of internet connected technologies with sensors, or other data collection means that allow them to interact with the world around them.
• Smart cities are cities that utilize IoT devices to constantly monitor and react to changing conditions, in order to function more efficiently
• ArcGIS GeoEvent Server is used to collect, ingest and process spatial-temporal data for GIS uses, allowing for real time monitoring of events and changes in the world.
• Additionally, GeoEvent server allows you to archive data for future reference or investigation, and allows for real time data delivery
• ArcGIS Online allows you to create maps with real time data layers, and operations dashboards for monitoring data and conditions in real time.
• Actions can also be used to trigger certain in case of certain events, or to active tools such as  filtering or graph generation

One possible application of real time maps would be for a shipping company to use it to monitor traffic patterns and accidents, so they could efficiently reroute their drivers to ensure packages arrive on time.

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