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The Gateway to Astronaut Photography of Earth
(NASA Crew Earth Observations)
Astronaut Photography of Earth - Display Record
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IdentificationMission: ISS038 Roll: E Frame: 25895 Mission ID on the Film or image: ISS038
Country or Geographic Name: IRAN
Features: BAZMAN VOLCANO, LAVA FLOWS, RADIAL DRAINAGE PATTERN
Center Point: Latitude: 28.1 Longitude: 60.0 (Negative numbers indicate south for latitude and west for longitude)
Stereo: (Yes indicates there is an adjacent picture of the same area)
ONC Map ID: JNC Map ID:
CameraCamera Tilt: High Oblique
Camera Focal Length: 400mm
Camera: N5: Nikon D3S
Film: 4256E : 4256 x 2832 pixel CMOS sensor, 36.0mm x 23.9mm, total pixels: 12.87 million, Nikon FX format.
Percentage of Cloud Cover: 10 (0-10)
GMT Date: 20140105 (YYYYMMDD) GMT Time: 115031 (HHMMSS)
Nadir Point Latitude: 23.0, Longitude: 63.8 (Negative numbers indicate south for latitude and west for longitude)
Nadir to Photo Center Direction: Northwest
Sun Azimuth: 236 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 225 nautical miles (417 km)
Sun Elevation Angle: 16 (Angle in degrees between the horizon and the sun, measured at the nadir point)
CaptionsBazman Volcano, Iran
Note: This caption refers to the image versions labeled "NASA's Earth Observatory web site".
Bazman volcano is located in a remote region of southern Iran within the Bazman Protected Area of Sistan and Baluchestan Provinces. While the volcano has the classic cone shape associated with stratovolcanoes, it is also heavily dissected by channels that extend downwards from the 3490 meter above sea level summit. This radial drainage pattern – looking similar to the spokes of a bicycle wheel - is readily observed in this astronaut photograph from the International Space Station. Such patterns can form around high, symmetric peaks when water runoff and erosion is not constrained by the resistance of geologic materials or barriers to flow, leading to essentially even distribution of water runoff channels around the central peak.
While there is no historical record of volcanism at Bazman, and no geologic record of eruptive activity within the past 10,000 years, some fumarolic activity – gas and steam emissions – have been reported, according to the Smithsonian Institution National Museum of Natural History’s Global Volcanism Program. The summit of the volcano is marked by a well-formed explosion crater, and lava cones formed on the flanks of the main volcano are associated with well-preserved lava flows– a particularly striking example is visible on the north flank of Bazman at image center. Together, these observations and features are suggestive that Bazman may be a dormant, rather than extinct, volcano.
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Recommended Citation: Earth Science and Remote Sensing Unit, NASA-Johnson Space Center. "The Gateway to Astronaut Photography of Earth." .