Dip and Azimuth volumes are used in several ways in GeoTeric, from processes such as Noise Cancellation (SO FMH & SO Noise filters) to attribute generation (SO Semblance, SO Dip Derivative, SO Discontinuity, Flexure, etc...). The majority of these filters/attributes have the symbol SO in front of them, indicating they are Structurally Oriented. In GeoTeric, structurally oriented indicates that Dip and Azimuth volumes are needed to steer the filters/attributes along the regional geological trends of the input cube to give an improved result. The use of steering volumes guides the filters in the direction of the geology rather than the grid or in the direction of the noise in the volume. In this blog post, an example of Noise Cancellation is used to show the importance of choosing the correct steering volumes for your purpose.