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Collection:
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NASA Earth Observatory Collection
Collection
NASA Earth Observatory Collection
Collection
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Title:
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Mount St. Helens
Title
Mount St. Helens
Title
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Description:
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The tip of Mount St. Helens glowed red when the Landsat 5 satellite passed overhead on October 14, 2004. At the time, the volcano was at alert level 2 in a three level warning system; level two indicates that the volcano is restless and may erupt at any time, but an eruption is not imminent. By this time, hot lava had broken to the surface of the growing lava dome inside the crater. The red dot seen here actually represents pixels that were saturated in Landsat’s thermal bands and corresponds to the lava seeping out of the lava dome. The false-color image also emphasizes the contrast between the lush temperate forests and farmland and the lava and ash covered volcano. In this image, all vegetation is bright green and bare land is grey and tan. Spirit Lake is the black lake northeast of the volcano. Image by Pat Scaramuzza provided by Ron Beck, USGS EROS Data Center
Description
The tip of Mount St. Helens glowed red when the Landsat 5 satellite passed overhead on October 14, 2004. At the time, the volcano was at alert level 2 in a three level warning system; level two indicates that the volcano is restless and may erupt at any time, but an eruption is not imminent. By this time, hot lava had broken to the surface of the growing lava dome inside the crater. The red dot seen here actually represents pixels that were saturated in Landsat’s thermal bands and corresponds to the lava seeping out of the lava dome. The false-color image also emphasizes the contrast between the lush temperate forests and farmland and the lava and ash covered volcano. In this image, all vegetation is bright green and bare land is grey and tan. Spirit Lake is the black lake northeast of the volcano. Image by Pat Scaramuzza provided by Ron Beck, USGS EROS Data Center Description
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Satellite - Sensor:
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Landsat 5- TM
Satellite_-_Sensor
Landsat 5- TM
Satellite - Sensor
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facet_what:
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Landsat
facet_what
Landsat
facet_what
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facet_what:
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Crater
facet_what
Crater
facet_what
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facet_what:
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Spirit
facet_what
Spirit
facet_what
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facet_what:
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Landsat 5
facet_what
Landsat 5
facet_what
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facet_when:
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October 14, 2004
facet_when
October 14, 2004
facet_when
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facet_when_year:
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2004
facet_when_year
2004
facet_when_year
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UID:
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SPD-ETOBS-12537
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original url:
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original_url
original url
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