Working with Landsat Imagery

Table of Contents

  1. Working with Landsat Imagery
  2. Setting Up Your Workspace
  3. Downloading Data from the USGS Earth Explorer
  4. Creating New Imagery Files Using the Composite Bands Tool
  5. Creating True and False-Color Composites
  6. Skill Drill: Creating a Custom False-Color Composite

Skill Drill: Creating a Custom False-Color Composite

In the Table of Contents, copy and paste your composite image one more time to create a third layer. Name the new layer “Custom False-color.” Take a moment to review the NASA website to help decide on a custom band combination. Once you have chosen a custom band combination, make a note on what potential applications the sequence might be used based on the portions of the electromagnetic spectrum made visible.

Once done, create a map layout that is 15 by 15 inches. You may display the entire Landsat 8 image, or you may zoom into an area on the image that interests you. Insert a north arrow and a scale bar. Don’t add any other map elements. To make them visible, you may have to change the colors to white. One by one, turn on each layer in the Table of Contents and export as a PNG file with a resolution of 300 dpi. When finished, you should have three maps, one natural color, one near-infrared false-color, and one custom-made false color. Save each image to your final folder.

At the end of this activity, you should have three 15-inch maps exported to your final folder.

Save your map document and close ArcMap. Make a backup of your project folder on Google Drive. Upload the project folder to the cloud using Google Drive. You may remove the original subfolder to save space. Be prepared to retrieve the maps for later use.

Registered students may need to turn in the three maps to recieve credit for the assignment.