How to Remove Wavelength Bands for Satellites

Satellite imagery has revolutionized the way we map and study the Earth’s surface. In the past, aerial photographers had to take thousands of photos and then stitch these together to create a view of even a small region of the Earth. With the advent of sophisticated satellites like Landsat, it became possible to take a single image encompassing a vast area. Beyond the changes in scale and the elimination of the assembly process, Landsat and its brethren had the ability to view the Earth in multiple wavelength bands. For example, the first Landsat could capture green, blue and two infrared. You can remove the wavelength bands you do not want by selecting the single image you want to use.

Instructions

    • 1

      Go to the USGS EarthExplorer site. Use your mouse to navigate on the map shown on the right side of the screen, to zoom in on the location for which you want satellite images.

    • 2

      Click on the map to choose the coordinates. These will be shown in the area selected on the left. Click on the “Data Sets” tab at the top.

    • 3

      Browse down through the available data sets and click on the “+” next to “Landsat Archive” to expand the list.

    • 4

      Click on “L1-5 MSS.” Click on the “Additional Criteria” tab at the top. Click on the “Data Set” and make sure “L1-5 MSS” is selected. If you have been looking at other data sets, it will sometimes list the wrong one in the entry.

    • 5

      Scroll to the bottom and click “Results.” Browse through the listed images for the one you want to use. Click on the “Browse Overlay” to see the image data you selected overlayed onto the map on the right. You can adjust the “Opacity” of the overlay with the slider on the left.

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