Airborne surveys are usually designed with wide survey line spacing (i.e. 150-200 metres apart) and flown at an altitude of 100-200 metres above ground, depending on local circumstances. This provides comprehensive and detailed information over the survey area, while ensuring safety and minimal impact to the environment.
The real benefit of any geophysical data set is that it provides valuable information pertaining to conditions below the ground surface. Geologists and engineers can use geophysical data to increase the accuracy of their mapping and geological models, which optimizes any follow-up studies or investigations, such as mineral exploration. This improves quality and makes the overall project much more efficient, safe and successful.