| Function type | Interval velocity is a linear function of isopach time. |
| Definition of parameters |
A= acceleration factor. Vint0= constant interval velocity factor. DT = DT isopach time (automatically computed by UDOMORE Depth as the difference between the time interpretation map at the top of the considered layer and the time interpretation map at the top of the layer immediately above). |
| Operational applications | Useful when there is a relation due to the opposition between fast and slow facies in an aggradational basin. |
$$
V_{int}= V_{int0} + α \times DT
$$
$$
DZ = V_{int} \times DT = \left( α \times DT + V_{int0} \right) \times DT
$$
$$
DZ = α \times DT^2 + V_{int0} \times DT
$$