Credit:
NASA GSFC Landsat/LDCM EPO Team
On March 22, 2009, the Alaskan stratovolcano Mount Redoubt started a succession of eruptions. The volcano, as seen here in this March 26, 2009 Landsat 5 image, is covered in snow and spewing water vapor and volcanic gas into the air. A lahar (a slurry of water and volcanic debris) can be seen flowing North from the volcano.
Using Europe's MetOp-A satellite data, maps of Mt. Redoubt’s sulfur dioxide emissions have been made. These maps enable tracking of volcanic cloud drifts around the world.
The Landsat 5 image above was created using reflected light from the shortwave infrared, near-infrared and green portions of the electromagnetic spectrum (Landsat 5 TM bands 7,4,2).
References
- Alaska Volcano Observatory. Redoubt. Accessed March 26, 2009 - external link
- Wikipedia. Mount Redoubt. Accessed March 26, 2009 - external link
Images & Animations
File
File Dimensions
- 560x560
- JPEG
- 4773x4773
- TIFF 32 MB
Metadata
Sensor:
Landsat 5 - TMData Date:
March 26, 2009Visualization Date:
August 4, 2009
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