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NASA Infrared Images May Provide Clues About Mt. St. Helen's Eruption

One day before Mt. St. Helens erupted Friday, Oct. 1, in southern Washington, NASA scientists took infrared (IR) digital images that revealed signs of heat below the mountain's surface. The images may provide valuable clues as to how the volcano erupted. Scientists flew an infrared imaging system aboard a small Cessna Caravan aircraft over the mountain to acquire the IR data.

*NOTE: Please refer to compass for photograph orientation.

St. Helen band fullcompass

File name: 04-007-08sf.Band44Full.jpg

MASTER band number 44, ( 9.16 um), collects emitted thermal energy over the mountain top. The black in the image is snow covering the ground. The lighter colors indicate warmer areas of the mountain.

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St. Helen band zoomcompass

File name: 04-007-08sf.Band44Zoom.jpg

This is a zoomed in view of the lava dome with MASTER band number 44. The black in the image is snow covering the ground. The white in the image indicate warmer areas of the dome. This may be showing potential cracks in the lava dome.

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St. Helen aerialcompass

File name: 04-007-08sf.R5G3B1Full.jpg

This is a color composite of MASTER bands 5, 3 and 1 (0.66 um, 0.54um and 0.46 um). It simulates a natural color view of the mountain like one would see with the human eye. 

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St. Helen aerialcompass

File name: 04-007-08sf.R5G3B1Zoom1 1.jpg

This is a zoomed in view of the lava dome with MASTER bands 5, 3 and 1, (natural color). It appears that there are small regions of the lava dome that may still have snow. 

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St. Helen aerial colorcompass

File name: 04-007-08sf.R44G12B02Full.jpg

This is a color composite of MASTER bands 44, 12 and 2 (9.16 um, 1.61um and 0.50 um). In this image blue indicates the snow cover, orange and yellow colors are characterizing the rock type and lava age, and the red color is indicating heat.  

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St. Helen color zoomedcompass

File name: 04-007-08sf.R44G12B02Zoom.jpg

This is a zoomed in view of the lava dome with MASTER bands 44, 12 and 2. In this image blue indicates the snow cover, orange and yellow colors are characterizing the rock type and lava age, and the red color is indicating heat. 

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St. Helen aerialcompass

File name: 0400708_01.jpg

Browse level-0 quick-look image of one of the MASTER flight lines flown over Mount St Helens. These images are also posted on the MASTER web-site at: http://masterweb.jpl.nasa.gov/data/

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St. Helen aerialcompass

File name: 0400708_02.jpg

Browse level-0 quick-look image of one of the MASTER flight lines flown over Mount St Helens. These images are also posted on the MASTER web-site at: http://masterweb.jpl.nasa.gov/data/

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St. Helen aerialcompass

File name: 0400708_03.jpg

Browse level-0 quick-look image of one of the MASTER flight lines flown over Mount St Helens. These images are also posted on the MASTER web-site at: http://masterweb.jpl.nasa.gov/data/

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St. Helen aerialcompass

File name: 0400708_04.jpg

Browse level-0 quick-look image of one of the MASTER flight lines flown over Mount St Helens. These images are also posted on the MASTER web-site at: http://masterweb.jpl.nasa.gov/data/

Preview Size| Publication Size

St. Helen aerialcompass

File name: 0400708_05.jpg

Browse level-0 quick-look image of one of the MASTER flight lines flown over Mount St Helens. These images are also posted on the MASTER web-site at: http://masterweb.jpl.nasa.gov/data/

Preview Size| Publication Size


RELATED LINKS
+ NASA Infrared Images May Provide Volcano Clues + NASA MASTER Missions
 

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