Module 01


Yesterday in the Great Smokies
Webcam archive
GEO 509: Workshop in Geospatial Technologies

Map of trees

EKy audio driving tour

01: Community

Where are we?

Task 1

Field work

  • Using public, open data, can we do field work without going into the field?


  • Area of interest
  • Settlement oriented along stream network.
  • Find a stream: Troublesome Creek


  • Create a base map for our AOI
  • and use that base map on our mobile device.

Sources of data

Let's explore!

  • 🔥 up ArcGIS Pro.

Steps today

  • Find your watershed in the WBDHU12 or WBDHU10 layer.
  • Edit the bridge layer to include private bridges.
  • Steps in Python.
  • Your locations.

Steps outside

  • You might need to work outside of class time.
  • Will make video for all steps.


Lab 1

  • Pick a community watershed; map their bridges.
  • Due date extended one week.
  • Submission

Lab videos

  • Watch videos for each step
  • done with GUI tools in ArcGIS Pro.
  • Great for one-off analysis (i.e., run one tool and see what happens).


  • One-off analysis doesn't scale well.
  • What if your watershed wasn't fruitful?
  • What if we needed dozens of watersheds?


  • What is the goal of our analysis?
  • What are the steps in processing and analysis?
  • What is the most time-consuming step?
  • What steps can we automate?

Workflows design

  • One-off analysis to verify each tool.
  • Chain the output of one tool to the input of another.

Workflows in practice

  • Model Builder
    • Menu-driven, visual coding environment in ArcGIS Pro.
    • Reads like a flowchart.
  • Python Notebook
    • Python code in a Jupyter Notebook.
    • Reads like a recipe.

Let's practice both

  • Then do some cartography!
    • locator map
    • bridge map
    • population map
  • First: start an ArcGIS Pro Map project.