Bulding Corrections to Gravitational Surveys

Gravitational surveys are an important tool for geophysicists. In these gravitational surveys, changes in the local gravitational field are measured and the variations are used to develop models of the subsurface geology. The measurements are subject to many corrective factors, including nearby buildings. Buildings are often conveniently modelled as solid prisms with an average density where the average density is generally inferred from building make up via modelling. An introduction to gravitation surveys, their corrections, and a direct method to measure the average density of a building is presented here.