Airborne Gravity

Course Module: GS 101 – Airborne Gravity Systems and Survey Design

This module addresses what is an airborne gravity system. The module starts with a reference to gravity variation and acceleration. It takes you through the different types of gravity systems. Simply, there are two types of highly sensitive accelerometers used to measure the earth’s gravity field. The instruments and the calibration required are discussed.

2022-05-12T01:33:13-05:00

Course Module: GS 102 – Standard Gravity Corrections Applied to Airborne Gravity

There are several standard corrections that are applied to any gravity data set. The module starts with  a summary on what is a gravity system and a description of the two main types: absolute and relative. We review how gravity can measure density and/or structural variations. That leads you the main objective of the module which is to discuss the different standard gravity corrections that are applied to all gravity data sets: the theoretical ellipsoidal gravity (latitude correction), atmospheric effect, height (Free Air) correction, and terrain effects (Bouguer correction).

2022-05-12T01:32:13-05:00

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