Mount Redoubt

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

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NASA GSFC Landsat/LDCM EPO Team

Published August 4, 2009
Data acquired March 26, 2009

Source:

Landsat 5 > TM

Topics:

Solid Earth > Volcanoes > Eruption Dynamics

Solid Earth > Volcanoes > Lava

Solid Earth > Volcanoes > Magma

Solid Earth > Volcanoes > Pyroclastics

Solid Earth > Volcanoes > Volcanic Ash/Dust

Solid Earth > Volcanoes > Volcanic Gases