The Stable Downard Continuation of Potential Field Data
Gordon R. J. Cooper · 2003
P152 THE STABLE DOWNARD CONTINUATION OF POTENTIAL FIELD DATA Abstract 1 It is often necessary to compare aeromagnetic datasets that have been collected at different altitudes (such as ground and airborne magnetic surveys). The upward continuation filter takes a potential field dataset and produces from it the data which would have been measured had the survey been performed at a greater altitude than was actually the case. The upward continuation process smooths the data and it is commonly applied for this purpose. If the continuation filter is instead used to produce the data which would have been measured on a