GGU-2D-SSFLOW: "Individual blankets" menu item (only for "leaky aquifer")

If you are analysing a horizontal-plane system with a "leaky aquifer", proceed as for a simple horizontal-plane system when generating the system. However, a water level above the blanket must be additionally assigned for elements below a blanket layer. If you forget to do this the system will be analysed as a horizontal-plane problem without a blanket. Regardless of this, the Aq. top entry (= top of aquifer) governs the analysis in terms of confined or unconfined. If you do not assign a water above the blanket layer to individual elements, these elements are also dealt with as if the problem is a horizontal-plane without a blanket. This may well be the actual case in parts of the system and may therefore be very useful.

Note on water level above the blanket layer:
Although the designation Water level above the blanket layer has been used for this manual, this does not represent the value between the top of the blanket and the water level; instead, the absolute height is always meant.

For example, if the top of the blanket is at 31.08 m AD and the water level above the blanket is at 33.28 m AD, the water level above the blanket layer to be entered is 33.28 (m AD) and not the difference of 1.2 m between these two values.

The water level above the blanket is defined for each element. If you click a single element the following dialog box opens:

Enter the water level above the blanket and assign it to the selected element by clicking the "Define" button. Alternatively, you can also edit an existing water level or remove it completely using the "Delete" button.