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Figure 1.  2DH View: Water Level menu.

Area ExtentsThis option displays an inundation map and computes areas using a specified minimum depth and duration. The user can change the minimum depths and durations and EFDC_Explorer will recompute the areas and display the results.
If a Compare model or a Compare model and a 3rd model have been loaded (Section 6.3.1) then each model's results will be plotted in the order of Base, Compare then 3rd. The colors displayed for each model can be changed by LMC'ing on the colored boxes beneath the Areal Ext checkboxes.
Hazard Area ExtentsThis option displays the FEMA velocity hazard level defined as depth * velocity head (v2/2g). The areas displayed and the areas computed are based on the computed hazard level over a specified minimum. The user can change the minimum level and EFDC_Explorer will recompute the areas and display the results.
Overtopping Flow
Overtopping HeadThis displays the FEMA defined overtopping depth which is defined as: depth + velocity head (v2/2g). Only available if the velocities have been loaded.
Total HeadDisplays the total head, water surface elevation + velocity head (v2/2g). Only available if the velocities have been loaded.
Water DepthThis option displays water depth of the model.
Water ElevationThis option displays water surface elevation of the model.
Wet/DryProvides a two color display for wet cells (blue) and dry (gray). The wet/dry determination is made using the dry depth unless the Use Wet option is checked, in which case the wetting depth will be used. The areas and the numbers of wet/dry cells are reported.