After you have extracted the water balance data from the MIKE SHE results files, then you can switch to the post-processing tab. Here you can create any number of individual water balances by simply clicking on the Add item icon and specifying the water balance parameters in the parameter dialogue.
A single Postprocessing item is created by default when the water balance file is created. The default Postprocessing name can be change to a more appropriate name. Postprocessing items that are no longer needed can be deleted using the Delete button.
Use default Config file
Unchecking the Use default Config file checkbox, allows you to specify the location of a custom water balance Config file. Development of custom water balance configuration files is described in detail in Making Custom Water Balances (V1 p. 131).
For each item in the Postprocessing list above, a new item will be added to the data tree. If you expand the data tree, each will have the following dialogue.
Water Balance
Multiple postprocessings can be run on each water balance extraction. More detail on the types of available water balances data are discussed in the Available Water Balance Items (V1 p. 103) section. In brief, the available types include
· The total water balance of the entire model catchment or sub-catchments in an ASCII table, a dfs0 file, a dfs2 map file,
· A graphical cartoon (“Chart” type) of the total water balance (such as Figure 6.1),
· Model errors for each hydrologic component (overland, unsaturated zone, etc.) in an ASCII table, a dfs0 file, or a dfs2 map file (also by layer),
· The snow melt and canopy/interception water balance in an ASCII table, or a dfs0 file,
· An abbreviated or detailed water balance for overland or unsaturated flow in an ASCII table, or a dfs0 file, and
· An abbreviated or detailed water balance by layer for saturated flow in an ASCII table, or a dfs0 file.
Output Period
An output period different from the total simulation period can be specified by unchecking Use default period and setting the Start date and End date to the period of interest
Output Time Series Specification
Incremental or Accumulated water balances can be calculated. An incremental water balance is calculated (summed) for each output time step in the Output period. An accumulated water balance each output time step is accumulated over the Output period
Layer Output Specifications
If you are using water balance types that calculate data on a layer basis, you can specify whether you want All layers or just the Specified layer, where you also must specify a layer number.
Sub-catchment Selection
If you extracted sub-catchment data from the WM results, then you must specify a subcatchment number or the name of the polygon for which you want the water balance for. The combobox contains a list of valid ID numbers or polygon names.
Single Cell Location
If you extracted the WM data by cell and you are not creating a map output, you have to specify a cell location for which you want a water balance.
Output File
If you are creating a table or time series water balance, then you can write the output to either a dfs0 file or to a tab-delimited ASCII file for import to MSExcel, or other post-processing tool. If you are creating a map, then the output will be to a dfs2 file, with the same grid dimensions and spacing as the model grid. If you are creating a chart, then the output will be written to an ASCII file, with a special format for creating the chart graphic.
Run the Post Processing
To run the post processing, you have two choices. You can click on the Run Selected Post-Processing icon, 
, which runs only the current post-processing item. Or, you can click on the Run All Post-Processing icon, 
, which runs all of the post-processing items in the list. These two options are also available in the Run top menu.
