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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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Icebergs Adrift in the Amundsen Sea
Title
Icebergs Adrift in the Amundsen Sea
Title
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Original Caption Released with Image:
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The Thwaites Ice Tongue is a large sheet of glacial ice extending from the West Antarctic mainland into the southern Amundsen Sea. A large crack in the Thwaites Tongue was discovered in imagery from Terra's Moderate Resolution Imaging SpectroRadiometer (MODIS). Subsequent widening of the crack led to the calving of a large iceberg. The development of this berg, designated B-22 by the National Ice Center, can be observed in these images from the Multi-angle Imaging SpectroRadiometer, also aboard Terra. The two views were acquired by MISR's nadir (vertical-viewing)ca mera on March 10 and 24, 2002.
The B-22 iceberg, located below and to the left of image center, measures approximately 82 kilometers long x 62 kilometers wide. Comparison of the two images shows the berg to have drifted away from the ice shelf edge. The breakup of ice near the shelf edge, in the area surrounding B-22, is also visible in the later image.
These natural-color images were acquired during Terra orbits 11843 and 12047, respectively. At the right-hand edge is Pine Island Bay, where the calving of another large iceberg (B-21) occurred in November 2001. B-21 subsequently split into two smaller bergs, both of which are visible to the right of B-22.
Antarctic researchers have reported an increase in the frequency of iceberg calvings in recent years. Whether this is the result of a regional climate variation, or connected to the global warming trend, has not yet been established.
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.
Original_Caption_Rel eased_with_Image
The Thwaites Ice Tongue is a large sheet of glacial ice extending from the West Antarctic mainland into the southern Amundsen Sea. A large crack in the Thwaites Tongue was discovered in imagery from Terra's Moderate Resolution Imaging SpectroRadiometer (MODIS). Subsequent widening of the crack led to the calving of a large iceberg. The development of this berg, designated B-22 by the National Ice Center, can be observed in these images from the Multi-angle Imaging SpectroRadiometer, also aboard Terra. The two views were acquired by MISR's nadir (vertical-viewing)ca mera on March 10 and 24, 2002.
The B-22 iceberg, located below and to the left of image center, measures approximately 82 kilometers long x 62 kilometers wide. Comparison of the two images shows the berg to have drifted away from the ice shelf edge. The breakup of ice near the shelf edge, in the area surrounding B-22, is also visible in the later image.
These natural-color images were acquired during Terra orbits 11843 and 12047, respectively. At the right-hand edge is Pine Island Bay, where the calving of another large iceberg (B-21) occurred in November 2001. B-21 subsequently split into two smaller bergs, both of which are visible to the right of B-22.
Antarctic researchers have reported an increase in the frequency of iceberg calvings in recent years. Whether this is the result of a regional climate variation, or connected to the global warming trend, has not yet been established.
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.
Original Caption Released with Image
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Image Credit:
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NASA/GSFC/LaRC/JPL, MISR Team
Image_Credit
NASA/GSFC/LaRC/JPL, MISR Team
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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Earth Observing System (EOS)
Mission
Earth Observing System (EOS)
Mission
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Spacecraft:
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Terra
Spacecraft
Terra
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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Multi-angle Imaging SpectroRadiometer (MISR)
Instrument
Multi-angle Imaging SpectroRadiometer (MISR)
Instrument
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Product Size:
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1017 samples x 1444 lines
Product_Size
1017 samples x 1444 lines
Product Size
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Primary Data Set:
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MISR
Primary_Data_Set
MISR
Primary Data Set
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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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Earth
facet_what
Earth
facet_what
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facet_what:
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Terra
facet_what
Terra
facet_what
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facet_what:
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Earth Observing System
facet_what
Earth Observing System
facet_what
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facet_what:
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EOS
facet_what
EOS
facet_what
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facet_what:
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MISR
facet_what
MISR
facet_what
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facet_what:
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Multi-angle Imaging SpectroRadiometer (MISR)
facet_what
Multi-angle Imaging SpectroRadiometer (MISR)
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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Amundsen Sea
facet_where
Amundsen Sea
facet_where
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facet_where:
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California
facet_where
California
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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Jet Propulsion Laboratory (JPL)
facet_where
Jet Propulsion Laboratory (JPL)
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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Langley Research Center (LaRC)
facet_where
Langley Research Center (LaRC)
facet_where
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facet_when:
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November 2001
facet_when
November 2001
facet_when
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facet_when_year:
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2001
facet_when_year
2001
facet_when_year
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Image #:
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PIA03700
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UID:
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SPD-PHOTJ-PIA03700
UID
SPD-PHOTJ-PIA03700
UID
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orignial url:
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orignial_url
orignial url
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