This Landsat image was created from data collected on 6 May 1992. Bands 5, 4, and 2 were used from the Thematic Mapper. A x3 vertical exaggeration was applied to the elevation data.
A flyby of Mt. St. Helens from Landsat data, with the terrain elevation growing to three times exaggeration
A flyby of Mt. St. Helens, using a Landsat image draped over terrain data
A flyby of Mt. St. Helens, Washington, using Landsat imagery draped over elevation data.
These images show Mt. St. Helens almost a decade before the May 18, 1980, eruption, approximately three years after the eruption, then a pair of images over the following decade, as the landscape recovered. Notice in particular the area northwest of the mountain, past the Toutle River, where forest coverage has recovered somewhat in the past ten years. North is up in all these images. The 1973 Landsat 1 image used MSS bands 7, 5, and 4 (called MSS 4, 2, and 1 on the later Landsat satellites) displayed as red, green, and blue respectively. The other images mapped TM bands 4, 3, and 2 to red, green, and blue. This color combination is often referred to as false color infrared since it has a similar appearance and tone to color infrared photography. Reds represent vegetation (which is a strong reflector of near infrared light), greys are exposed land, and light blues show snow on the peaks of Mt. St. Helens and neighboring Mt. Adams. The Columbia River snakes into view in the lower left corner, just north of Portland, Oregon.
A flyby of Mt. St. Helens from Landsat imagery draped over terrain data
A slow flyby of the Pacific Northwest from Crater Lake to Mt. Rainier, using Landsat imagery draped over elevation data.
Looking at time through the Landsat Satellite series. We see Mount St. Helens in 1973, 1983, and 2000. Scientist can see how the local area is healing after the 1980 eruption of the volcano.
Looking at time through the Landsat Satellite series. We see Mount St. Helens in 1973, 1983, and 2000. Scientist can see how the local area is healing after the 1980 eruption of the volcano.
