
%0 Journal Article
%A Heath, Philip 
%A Reed, Gary 
%A Dhu, Tania 
%A Keeping, Tim 
%A Katona, Laszlo 
%T Regional Gravity Terrain Corrections: examples from South Australia
%J ASEG Extended Abstracts
%D 2012/04/01
%V 2012
%N 1
%P 1-3
%K 
%R https://doi.org/10.1071/ASEG2012AB180
%U https://www.publish.csiro.au/paper/ASEG2012AB180 
%X Traditional Bouguer corrections assume that the Earth behaves as a flat slab (Bouguer reduction), an assumption that is incorrect. A more accurate method of removing the effects of an Earth model is to take into account the terrain information, and assume a curved Earth. Terrain corrections are becoming more commonplace in individual surveys as computer power increases. We have produced a regional (state-wide) scale terrain corrected gravity grid, using a 1-second DEM to calculate the correction. The correction adds a subtle change to the state wide gravity, removing some regional lows. It can be used as a simple visual tool to determine where terrain corrections are more appropriately undertaken. 
