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Collection:
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NASA Planetary Photo Journal Collection
Collection
NASA Planetary Photo Journal Collection
Collection
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Title:
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Ambae Island, Vanuatu (South Pacific)
Title
Ambae Island, Vanuatu (South Pacific)
Title
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Original Caption Released with Image:
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The recently active volcano Mt. Manaro is the dominant feature in this shaded relief image of Ambae Island, part of the Vanuatu archipelago located 1400 miles northeast of Sydney, Australia. About 5000 inhabitants, half the island's population, were evacuated in early December from the path of a possible lahar, or mud flow, when the volcano started spewing clouds of steam and toxic gases 10,000 feet into the atmosphere.
Last active in 1996, the 1496 meter (4908 ft.) high Hawaiian-style basaltic shield volcano features two lakes within its summit caldera, or crater. The ash and gas plume is actually emerging from a vent at the center of Lake Voui (at left), which was formed approximately 425 years ago after an explosive eruption.
Two visualization methods were combined to produce the image: shading and color coding of topographic height. The shade image was derived by computing topographic slope in the northwest-southeast direction, so that northwest slopes appear bright and southeast slopes appear dark. Color coding is directly related to topographic height, with green at the lower elevations, rising through yellow and tan, to white at the highest elevations.
Elevation data used in this image were acquired by the Shuttle Radar Topography Mission aboard the Space Shuttle Endeavour, launched on Feb. 11, 2000. SRTM used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. SRTM was designed to collect 3-D measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter (approximately 200-foot) mast, installed additional C-band and X-band antennas, and improved tracking and navigation devices. The mission is a cooperative project between NASA, the National Geospatial-Intellige nce Agency (NGA) of the U.S. Department of Defense and the German and Italian space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, Calif., for NASA's Earth Science Enterprise,Washingto n, D.C.
Location: 15.4 degree south latitude, 167.9 degrees east longitude
Orientation: North toward the top, Mercator projection
Size: 36.8 by 27.8 kilometers (22.9 by 17.3 miles)
Image Data: shaded and colored SRTM elevation model
Date Acquired: February 2000
Original_Caption_Rel eased_with_Image
The recently active volcano Mt. Manaro is the dominant feature in this shaded relief image of Ambae Island, part of the Vanuatu archipelago located 1400 miles northeast of Sydney, Australia. About 5000 inhabitants, half the island's population, were evacuated in early December from the path of a possible lahar, or mud flow, when the volcano started spewing clouds of steam and toxic gases 10,000 feet into the atmosphere.
Last active in 1996, the 1496 meter (4908 ft.) high Hawaiian-style basaltic shield volcano features two lakes within its summit caldera, or crater. The ash and gas plume is actually emerging from a vent at the center of Lake Voui (at left), which was formed approximately 425 years ago after an explosive eruption.
Two visualization methods were combined to produce the image: shading and color coding of topographic height. The shade image was derived by computing topographic slope in the northwest-southeast direction, so that northwest slopes appear bright and southeast slopes appear dark. Color coding is directly related to topographic height, with green at the lower elevations, rising through yellow and tan, to white at the highest elevations.
Elevation data used in this image were acquired by the Shuttle Radar Topography Mission aboard the Space Shuttle Endeavour, launched on Feb. 11, 2000. SRTM used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. SRTM was designed to collect 3-D measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter (approximately 200-foot) mast, installed additional C-band and X-band antennas, and improved tracking and navigation devices. The mission is a cooperative project between NASA, the National Geospatial-Intellige nce Agency (NGA) of the U.S. Department of Defense and the German and Italian space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, Calif., for NASA's Earth Science Enterprise,Washingto n, D.C.
Location: 15.4 degree south latitude, 167.9 degrees east longitude
Orientation: North toward the top, Mercator projection
Size: 36.8 by 27.8 kilometers (22.9 by 17.3 miles)
Image Data: shaded and colored SRTM elevation model
Date Acquired: February 2000
Original Caption Released with Image
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Image Credit:
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NASA/JPL/NGA
Image_Credit
NASA/JPL/NGA
Image Credit
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Produced By:
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JPL
Produced_By
JPL
Produced By
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Mission:
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Shuttle Radar Topography Mission (SRTM)
Mission
Shuttle Radar Topography Mission (SRTM)
Mission
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Spacecraft:
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Space Shuttle Endeavour
Spacecraft
Space Shuttle Endeavour
Spacecraft
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Target Name:
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Earth
Target_Name
Earth
Target Name
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Is a satellite of:
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Sol (our sun)
Is_a_satellite_of
Sol (our sun)
Is a satellite of
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Instrument:
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X-Band Radar
Instrument
X-Band Radar
Instrument
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Instrument:
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C-Band Radar
Instrument
C-Band Radar
Instrument
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Product Size:
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1234 samples x 899 lines
Product_Size
1234 samples x 899 lines
Product Size
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facet_what:
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Sun
facet_what
Sun
facet_what
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facet_what:
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Crater
facet_what
Crater
facet_what
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facet_what:
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Earth
facet_what
Earth
facet_what
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facet_what:
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C/X-Band Synthetic Aperture Radar
facet_what
C/X-Band Synthetic Aperture Radar
facet_what
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facet_what:
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Spaceborne Imaging Radar
facet_what
Spaceborne Imaging Radar
facet_what
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facet_what:
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Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar
facet_what
Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar
facet_what
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facet_what:
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Space Shuttle Endeavour
facet_what
Space Shuttle Endeavour
facet_what
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facet_what:
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Shuttle Radar Topography Mission
facet_what
Shuttle Radar Topography Mission
facet_what
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facet_what:
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SRTM
facet_what
SRTM
facet_what
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facet_what:
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C-Band Radar
facet_what
C-Band Radar
facet_what
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facet_what:
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X-Band Radar
facet_what
X-Band Radar
facet_what
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facet_what:
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Space Shuttle Orbiter
facet_what
Space Shuttle Orbiter
facet_what
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facet_where:
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Jet Propulsion Laboratory
facet_where
Jet Propulsion Laboratory
facet_where
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facet_where:
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Australia
facet_where
Australia
facet_where
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facet_where:
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Washington
facet_where
Washington
facet_where
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facet_where:
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Sydney
facet_where
Sydney
facet_where
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facet_where:
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Vanuatu
facet_where
Vanuatu
facet_where
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facet_where:
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Jet Propulsion Laboratory (JPL)
facet_where
Jet Propulsion Laboratory (JPL)
facet_where
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facet_where:
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Washington, D.C.
facet_where
Washington, D.C.
facet_where
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facet_when:
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1994
facet_when
1994
facet_when
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facet_when:
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1996
facet_when
1996
facet_when
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facet_when:
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February 2000
facet_when
February 2000
facet_when
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facet_when_year:
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1994
facet_when_year
1994
facet_when_year
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facet_when_year:
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1996
facet_when_year
1996
facet_when_year
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facet_when_year:
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2000
facet_when_year
2000
facet_when_year
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Image #:
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PIA06675
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UID:
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SPD-PHOTJ-PIA06675
UID
SPD-PHOTJ-PIA06675
UID
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orignial url:
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orignial_url
orignial url
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