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Figure 4-9: Elevation sub-menu (for Zone conceptual features).
The ‘Partial Penetration’ options for the Top Elevation and Bottom Elevation (‘Bot Elevation’) allow zone
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features to partially penetrate a prescribed thickness of the aquifer . For example, users may wish to restrict
a contaminant source to the topmost portion of the aquifer system (see Figure 4-10), or insert a “clay lens”
of lower hydraulic conductivity at some locations in the subsurface.
Check the radio box(es) next to ‘Top Elevation’ and/or ‘Bot Elevation:’ to apply partial penetration
elevation extents for the top and bottom elevation of the zone feature, respectively. The default values of
‘99999’ mean that the elevation will be extracted from the domain-wide elevation inputs. Enter different
Figure 4-10: Example Cross-section results (see Section 5.4) of using and not using Partial Penetration for a zone
feature in MAGNET. When partial penetration is not used, the solute source is distributed throughout the aquifer
system (i.e., across all computational layers. When it is used, the solute source is restricted to the topmost
computational layer.
8 Partial penetration only applies when multiple (vertical) sub-layers are used (see Section 3.2).
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