Arc Collector is a GIS tool that is used to collect data in the field. It allows multiple people to contribute to the data collection process. This data can be integrated into any other ArcGIS maps. Some of the uses of this app include ground control points. This can allow for better processing as it relates to UAS data because you know the GPS location on the ground. Figure 1 shows GCPs on the ground.
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| Figure 1. GCPs Collected on the Ground |
Assignment Methods:
For this assignment, I followed this tutorial: https://www.esri.com/arcgis-blog/products/collector/field-mobility/make-your-first-collector-map/
The first step is to prepare the layer, this has to be done on ArcGIS Online before moving it to the Collector app. Figure 2 shows how to create these fields in ArcGIS. Three different layers were created: paths, places, and areas. After creating the layers, assets are created to represent the types of amenities in the park. These are created and the symbology is changed to represent the object. Figure 3 shows these amenities and their symbols.
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| Figure 2. Type of Amenity Field |
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| Figure 3. Types of Amenities |
After your objects are created, you can go into Collector and places the objects in the field. Figures 4 and 5 show how this is done.
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Figure 4. Adding Dirt Paths in Arc Collector
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Assignment Discussion:
Another use of Arc Collector is collecting Ground Control Points, this helps when trying to get more accurate processing as discussed in previous posts. These GCPs could be collected with a phone but should be collected via GPS survey. The following map shows GCPs that I have collected.
This map is only a small glimpse into what can be done with Arc Collector, another way to use it is assessing damage after storms, fallen trees or downed power lines can be marked on the map to come up with different routes.
This map layout is shown in Figure 6.
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| Figure 6. GCPs of a Proposed Construction Project |