NASA: It is happening now - Esta sucediendo ahora - Activity at Shiveluch Volcano - Activity at Kizimen Volcano - 02.04.13

Posted by ricardo marcenaro | Posted in | Posted on 1:33

Activity at Shiveluch Volcano

Activity at Shiveluch Volcano
acquired March 2, 2013 download large image (3 MB, JPEG, 2872x2872)
acquired March 2, 2013 download GeoTIFF file (16 MB, TIFF)
Activity at Shiveluch Volcano
acquired March 18, 2013 download large image (2 MB, JPEG, 2872x2872)
acquired March 18, 2013 download GeoTIFF file (14 MB, TIFF)
acquired March 2 - 18, 2013 download Google Earth file (KML)
Snow, ash, and debris cover Shiveluch Volcano in these false-color (near infrared, red, and green) satellite images. The images show changes on Shiveluch over a two week period. On March 2, 2013 (top image), ash was spread over a large area, carried by shifting winds. Debris from Shiveluch’s lava dome was funneled south by a narrow couloir, traveling as much as 14 kilometers (8.7 miles). By March 18 late winter snow had obscured the ash, but fresh debris darkened the slopes directly south of the dome.
These images were collected by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite. In addition to changes caused by the continuing eruption, the landscape appeared brighter on March 18 because the sun was higher above the horizon (both images were acquired at the same local time, and processed identically).
NASA Earth Observatory image by Jesse Allen and Robert Simmon, using data from the NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team.
Instrument: 
Terra - ASTER

Activity at Kizimen Volcano

Activity at Kizimen Volcano
acquired March 2, 2013 download large image (1 MB, JPEG, 2351x1568)
acquired March 2, 2013 download GeoTIFF file (8 MB, TIFF)
Widespread deposits of volcanic debris indicate that frequent pyroclastic flows scour the slopes of Kizimen Volcano. On March 2, 2013, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on the Terra satellite captured a flow as it cascaded down the eastern flank of the volcano. The false-color image (made from near infrared, red, and green light) shows airborne dust and ash lofted by the flow, as well as brown older debris, white snow, dull red forests, and a white gas and ash plume. Poperechny Brook, which flows north from Kizimen, is also partially filled with pyroclastic flow deposits.
NASA Earth Observatory image by Jesse Allen and Robert Simmon, using data from the NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team.
Instrument: 
Terra - ASTER


NASA: It is happening now - Esta sucediendo ahora - Activity at Shiveluch Volcano - Activity at Kizimen Volcano - 02.04.13





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