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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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NASA/French Satellite Data Reveal New Details of Tsunami
Title
NASA/French Satellite Data Reveal New Details of Tsunami
Title
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Original Caption Released with Image:
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Displayed in blue color is the height of sea surface (shown in blue) measured by the Jason satellite two hours after the initial magnitude 9 earthquake hit the region (shown in red) southwest of Sumatra on December 26, 2004. The data were taken by a radar altimeter onboard the satellite along a track traversing the Indian Ocean when the tsunami waves had just filled the entire Bay of Bengal (see the model simulation inset image). The data shown are the changes of sea surface height from previous observations made along the same track 20-30 days before the earthquake, reflecting the signals of the tsunami waves.
The maximum height of the leading wave crest was about 50 cm (or 1.6 ft), followed by a trough of sea surface depression of 40 cm. The directions of wave propagation along the satellite track are shown by the blue arrows.
Model Simulation:
Simulated changes of sea surface height caused by the earthquake two hours after the initial shock. The simulation was performed using a computer model and provided for public access via internet by Kenji Satake, National Institute of Advanced Industrial Science and Technology, Japan (http://www.ioc.unes co.org/itsu/template s/itsu/images/animat ion.gif). Wave crests are shown in red and troughs in blue. The track traversed by the Jason satellite was also shown. The simulated crests and troughs along the track are in agreement with the satellite observations. The map provides a basin-wide perspective for interpreting the satellite observations along a single track.
Original_Caption_Rel eased_with_Image
Displayed in blue color is the height of sea surface (shown in blue) measured by the Jason satellite two hours after the initial magnitude 9 earthquake hit the region (shown in red) southwest of Sumatra on December 26, 2004. The data were taken by a radar altimeter onboard the satellite along a track traversing the Indian Ocean when the tsunami waves had just filled the entire Bay of Bengal (see the model simulation inset image). The data shown are the changes of sea surface height from previous observations made along the same track 20-30 days before the earthquake, reflecting the signals of the tsunami waves.
The maximum height of the leading wave crest was about 50 cm (or 1.6 ft), followed by a trough of sea surface depression of 40 cm. The directions of wave propagation along the satellite track are shown by the blue arrows.
Model Simulation:
Simulated changes of sea surface height caused by the earthquake two hours after the initial shock. The simulation was performed using a computer model and provided for public access via internet by Kenji Satake, National Institute of Advanced Industrial Science and Technology, Japan (http://www.ioc.unes co.org/itsu/template s/itsu/images/animat ion.gif). Wave crests are shown in red and troughs in blue. The track traversed by the Jason satellite was also shown. The simulated crests and troughs along the track are in agreement with the satellite observations. The map provides a basin-wide perspective for interpreting the satellite observations along a single track.
Original Caption Released with Image
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Image Credit:
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NASA/JPL/CNES/Nation al Institute of Advanced Industrial Science and Technology, Japan
Image_Credit
NASA/JPL/CNES/Nation al Institute of Advanced Industrial Science and Technology, Japan
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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Jason-1 (TOPEX/Poseidon)
Mission
Jason-1 (TOPEX/Poseidon)
Mission
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Spacecraft:
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Jason Satellite
Spacecraft
Jason Satellite
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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Altimeter
Instrument
Altimeter
Instrument
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Product Size:
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1590 samples x 1800 lines
Product_Size
1590 samples x 1800 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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Earth
facet_what
Earth
facet_what
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facet_what:
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TOPEX
facet_what
TOPEX
facet_what
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facet_what:
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Jason-1
facet_what
Jason-1
facet_what
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facet_what:
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Poseidon
facet_what
Poseidon
facet_what
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facet_what:
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TOPEX/Poseidon
facet_what
TOPEX/Poseidon
facet_what
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facet_what:
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Altimeter
facet_what
Altimeter
facet_what
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facet_what:
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Jason Satellite
facet_what
Jason Satellite
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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Indian Ocean
facet_where
Indian Ocean
facet_where
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facet_where:
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Bay of Bengal
facet_where
Bay of Bengal
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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December 26, 2004
facet_when
December 26, 2004
facet_when
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facet_when_year:
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2004
facet_when_year
2004
facet_when_year
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Image #:
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PIA07219
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UID:
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SPD-PHOTJ-PIA07219
UID
SPD-PHOTJ-PIA07219
UID
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orignial url:
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orignial_url
orignial url
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