Unzen Volcano, Japan


This is a space radar image of the area around the Unzen volcano, on the west coast of Kyushu Island in southwestern Japan. Unzen, which appears in this image as a large triangular peak with a white flank near the center of the peninsula, has been continuously active since a series of powerful eruptions began in 1991. The image was acquired by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on its 93rd orbit on April 15, is toward the upper left of the image. The radar illumination is from the top of the Imaging Radar-C and X-Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity.


Size: 2620px × 3320px
Photo credit: © Photo Researchers / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -sar, aerial, aperture, asia, caldera, dome, endeavour, flow, formation, geological, geology, image, imaging, island, japan, kyushu, lava, peninsula, photography, pyroclastic, radar, radar-/-band, satellite, shimabara, shuttle, sir-/, space, spaceborne, synthetic, topography, unzen, volcanic, volcano, volcanoes, volcanology