Attribute: KFVH [-] (3D models only)

In groundwater modelling, the vertical K-values are often defined using a default ratio between the horizontal and vertical K-values, particularly for 3D models in order to reduce the input effort. In SPRING, if no vertical K-values are specified explicitly then they are taken from the horizontal K-values (KWER) and divided by the KFVH factor. This factor is 10 by default and is stored in the 3D file as the KFVH attribute. It can be edited there or changed via the menu item Attributes Extras Adjust factor KFVH....

For Example: The KWEV attribute is defined for layer 4 (KWEV = 0.0004). Which, due to the automatic successive assignment of attributes in SPRING, means that layer 5 and below are also automatically assigned the value KWEV = 0.0004. In this case, the factor KFVH will only apply to layers 1 to 3.