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Collection:
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NASA Earth Observatory Collection
Collection
NASA Earth Observatory Collection
Collection
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Title:
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New Island and Pumice Raft, Tonga
Title
New Island and Pumice Raft, Tonga
Title
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Description:
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New Island and Pumice Raft, Tonga In August 2006, a pumice raft in the Tonga islands alerted sailors to the emergence of a new volcanic island known as Home Reef. After its appearance, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite tracked the new island’s progress. Although prominent in early October, the island had retreated somewhat by mid-November. Compared to the October image (inset), the image acquired on November 12, 2006, shows a smaller island with a different shape. Cloud cover overhead also obscures the November view. For underwater volcanoes, erosion is not uncommon. The constant activity of the seawater eats away at the volcanic material. Volcanoes can grow in spurts of eruptive activity followed by periods of erosion that partially offset the growth. NASA images created by Jesse Allen, Earth Observatory, using data provided courtesy of the NASA/GSFC/MITI/ERSDA C/JAROS, and U.S./Japan ASTER Science Team.
Description
New Island and Pumice Raft, Tonga In August 2006, a pumice raft in the Tonga islands alerted sailors to the emergence of a new volcanic island known as Home Reef. After its appearance, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite tracked the new island’s progress. Although prominent in early October, the island had retreated somewhat by mid-November. Compared to the October image (inset), the image acquired on November 12, 2006, shows a smaller island with a different shape. Cloud cover overhead also obscures the November view. For underwater volcanoes, erosion is not uncommon. The constant activity of the seawater eats away at the volcanic material. Volcanoes can grow in spurts of eruptive activity followed by periods of erosion that partially offset the growth. NASA images created by Jesse Allen, Earth Observatory, using data provided courtesy of the NASA/GSFC/MITI/ERSDA C/JAROS, and U.S./Japan ASTER Science Team.
Description
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Satellite - Sensor:
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Terra- ASTER
Satellite_-_Sensor
Terra- ASTER
Satellite - Sensor
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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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ASTER
facet_what
ASTER
facet_what
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facet_what:
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Advanced Spaceborne Thermal Emission and Reflection Radiometer
facet_what
Advanced Spaceborne Thermal Emission and Reflection Radiometer
facet_what
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facet_what:
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Terra
facet_what
Terra
facet_what
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facet_where:
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Japan
facet_where
Japan
facet_where
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facet_where:
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Tonga
facet_where
Tonga
facet_where
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facet_where:
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Goddard Space Flight Center (GSFC)
facet_where
Goddard Space Flight Center (GSFC)
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_when:
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August 2006
facet_when
August 2006
facet_when
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facet_when:
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November 12, 2006
facet_when
November 12, 2006
facet_when
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facet_when_year:
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2006
facet_when_year
2006
facet_when_year
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UID:
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SPD-ETOBS-13978
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original url:
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original_url
original url
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