|Last modified date:||2012-06-13|
Trend Enforcement gridding can be used to alleviate a traditional problem in gridding geophysical data, i.e. the aliasing problem that occurs due to the presence of more samples "along the lines" than across lines. This problem leads to obvious effects including ellipsoids or ellipsoidal "beads" between lines in gridded data. There are various solutions to these types of effects including filtering and gridding along trend directions. However, these techniques may reduce geologic signal or obscure local trends.
The Trend Enforcement Gridding algorithm is designed to provide a solution that preserves the character of local trends while eliminating aliasing effects.
For more detailed information see Tutorial 16, in the OasismontajTutorialnew.pdf available from the Help menu > Technical Documentation > Tutorials > Oasis montaj and Extensions.