Landsat: 25 Years of Land-Use Change near Portland, Oregon

  • Released Tuesday, April 2, 2013
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This animation shows land-use changes over 25 years around the area of Portland, Oregon, United States, and Mt. St. Helens in Washington state.

In this visualization, north is to the right and west is up. The city of Portland, Oregon can just be seen on the left edge of the image, while Mt. St. Helens shows up as a large red/purple area in the middle right.

Areas of vegetation are shown in blues, greens and yellows while areas lacking vegetation are shown in reds, oranges, and browns. As the animation cycles through the years 1984-2008, the harvest and regrowth cycle of commercial forestry operations can be seen, along with gradual re-vegetation of areas destroyed by the 1980 volcanic eruption of Mt. St. Helens.

A cropped version of the original wide-screen visualization

A horizontally scaled version of the original wide-screen animation

This is the legend used in the animation described above.

This is the legend used in the animation described above.

This is the compass used to show that north is to the right.

This is the compass used to show that north is to the right.

Credits

Please give credit for this item to:
NASA/Goddard Space Flight Center

This page was originally published on Tuesday, April 2, 2013.
This page was last updated on Tuesday, November 14, 2023 at 12:21 AM EST.

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