L03_GravCorrAnalysis-page4

L03_GravCorrAnalysis - Then the free-air anomaly is φ g C g g F obs F − = ∆ Have not corrected for topography • Onshore anomaly map similar

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Applied Geophysics – Corrections and analysis Hammer correction Terrain correction Applied Geophysics – Corrections and analysis Free-air anomaly A gravity “anomaly” suggests the difference between a theoretical and observed value. Î Tie survey to base station where absolute gravity is known
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Unformatted text preview: Then the free-air anomaly is: φ g C g g F obs F − + = ∆ Have not corrected for topography • Onshore: anomaly map similar to topography • Free-air anomaly mainly used for offshore...
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This note was uploaded on 01/07/2012 for the course PHYSICS 384 taught by Professor Wei during the Spring '09 term at SUNY Stony Brook.

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