MEDIA RELATIONS OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109 TELEPHONE (818) 354-5011
http://www.jpl.nasa.gov


PHOTO CAPTION                    Nicaraguan Volcanoes

The true-color image at left is a downward-looking (nadir) view 
of the area around the San Cristobal volcano, which erupted the 
previous day. This image is oriented with east at the top and 
north at the left. The right image is a stereo anaglyph of the 
same area, created from red band multi-angle data taken by the 
45.6-degree aftward and 70.5-degree aftward cameras on the Multi-
angle Imaging SpectroRadiometer (MISR) instrument on NASA's Terra 
satellite. View this image through red/blue 3D glasses, with the 
red filter over the left eye. A plume from San Cristobal 
(approximately at image center) is much easier to see in the 
anaglyph, due to 3 effects: the long viewing path through the 
atmosphere at the oblique angles, the reduced reflection from the 
underlying water, and the 3D stereoscopic height separation. In 
this image, the plume floats between the surface and the 
overlying cumulus clouds. A second plume is also visible in the 
upper right (southeast of San Cristobal). This very thin plume 
may originate from the Masaya volcano, which is continually 
degassing at a slow rate. The spatial resolution is 275 meters 
(300 yards). MISR was built and is managed by NASA's Jet 
Propulsion Laboratory, Pasadena, CA, for NASA's Office of Earth 
Science, Washington, DC. The Terra satellite is managed by NASA's 
Goddard Space Flight Center, Greenbelt, MD. JPL is a division of 
the California Institute of Technology.


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