By : Dr Amin Khalil
Gravity field depends on :
 Mass
 Inverse of squared distance
Earth’s Radii
The use of acceleration due to gravity to
study the subsurface it is required to
remove any unwanted effects, so that the
...
• Sea level can be regarded as equipotential
surface.
•Earth’s surface possesses undulations.
•Areas above sea level have ...
Increase in mass
result is increase in g
Reduction of gravity data
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Reduction of gravity data

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Introductory Geophysics course, Reduction of Gravity data

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Reduction of gravity data

  1. 1. By : Dr Amin Khalil
  2. 2. Gravity field depends on :  Mass  Inverse of squared distance
  3. 3. Earth’s Radii
  4. 4. The use of acceleration due to gravity to study the subsurface it is required to remove any unwanted effects, so that the effects from anomalous bodies are the only factors.
  5. 5. • Sea level can be regarded as equipotential surface. •Earth’s surface possesses undulations. •Areas above sea level have less g •Areas below sea level have greater g Thus elevations of the earth’s surface affects g and this effect should be removed.
  6. 6. Increase in mass result is increase in g
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