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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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Earthquake Signal Visible in GRACE Data
Title
Earthquake Signal Visible in GRACE Data
Title
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Original Caption Released with Image:
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Figure1
This figure shows the effect of the December 2004 great Sumatra earthquake on the Earth?s gravity field as observed by GRACE. The signal is expressed in terms of the relative acceleration of the two GRACE satellites, in this case a few nanometers per second squared, or about 1 billionth of the acceleration we experience everyday at the Earth?s surface.GRACE observations show comparable signals in the region of the earthquake.
Other natural variations are also apparent in the expected places, whereas no other significant change would be expected in the region of the earthquake
GRACE, twin satellites launched in March 2002, are making detailed measurements of Earth's gravity field which will lead to discoveries about gravity and Earth's natural systems. These discoveries could have far-reaching benefits to society and the world's population.
Original_Caption_Rel eased_with_Image
Figure1
This figure shows the effect of the December 2004 great Sumatra earthquake on the Earth?s gravity field as observed by GRACE. The signal is expressed in terms of the relative acceleration of the two GRACE satellites, in this case a few nanometers per second squared, or about 1 billionth of the acceleration we experience everyday at the Earth?s surface.GRACE observations show comparable signals in the region of the earthquake.
Other natural variations are also apparent in the expected places, whereas no other significant change would be expected in the region of the earthquake
GRACE, twin satellites launched in March 2002, are making detailed measurements of Earth's gravity field which will lead to discoveries about gravity and Earth's natural systems. These discoveries could have far-reaching benefits to society and the world's population.
Original Caption Released with Image
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Image Credit:
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NASA/JPL/University of Texas-CSR
Image_Credit
NASA/JPL/University of Texas-CSR
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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Gravity Recovery and Climate Experiment (GRACE)
Mission
Gravity Recovery and Climate Experiment (GRACE)
Mission
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Spacecraft:
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Gravity Recovery and Climate Experiment (GRACE)
Spacecraft
Gravity Recovery and Climate Experiment (GRACE)
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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K-Band Ranging System
Instrument
K-Band Ranging System
Instrument
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Product Size:
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1302 samples x 1326 lines
Product_Size
1302 samples x 1326 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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GRACE
facet_what
GRACE
facet_what
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facet_what:
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Gravity Recovery and Climate Experiment
facet_what
Gravity Recovery and Climate Experiment
facet_what
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facet_what:
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K-Band Ranging System
facet_what
K-Band Ranging System
facet_what
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facet_where:
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Texas
facet_where
Texas
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 2004
facet_when
December 2004
facet_when
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facet_when:
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March 2002
facet_when
March 2002
facet_when
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facet_when_year:
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2002
facet_when_year
2002
facet_when_year
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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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PIA03625
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UID:
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SPD-PHOTJ-PIA03625
UID
SPD-PHOTJ-PIA03625
UID
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orignial url:
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orignial_url
orignial url
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