Boundary Water Fluxes
Graphs showing distributions versus time of water boundary fluxes across boundaries having different types of boundary conditions.
Available options for the independent variable:
Potential Atmospheric flux |
A potential flux across the atmospheric boundary; a combination of precipitation, irrigation, or potential evaporation fluxes, potential atmospheric flux = potential evaporation - precipitation |
Potential root water uptake |
Potential transpiration |
Actual Atmospheric flux |
An actual flux across the atmospheric boundary; infiltration (negative) or actual evaporation (positive) |
Actual root water uptake |
Actual transpiration |
Variable boundary flux |
This information is provided for all four time-variable pressure head/flux boundaries. Note that HYDRUS adds fluxes across the "Time-Variable Flux 1" and "Time-Variable Head 1" boundaries and reports the resulting value as "Variable Boundary Flux 1". Similarly for "Time-Variable Flux 2" and "Time-Variable Head 2", and so on. |
Constant boundary flux |
HYDRUS adds fluxes across both Constant Head and Constant Flux boundaries. |
Seepage face flux |
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Drain boundary flux |
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Gradient boundary flux |
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All atmospheric fluxes |
Shows potential and actual fluxes across the atmospheric boundary, as well as potential and actual transpiration. |
All non-atmospheric fluxes |
Shows all other boundary fluxes not displayed in the previous graph (i.e., all atmospheric fluxes) |
Surface Runoff |
Actual surface runoff (difference between precipitation/irrigation and actual infiltration) |
Evaporation |
Actual evaporation |
Infiltration |
Actual infiltration |
All fluxes are positive out of the domain (except for Infiltration - a variable not displayed in the graph, but listed in the output file v_mean.out).
Units are [L/T] for atmospheric fluxes and for root water uptake. For all other fluxes, the units are [L2/T] for two dimensional applications and [L3/T] for three dimensional applications.
Use the list box to select the independent variable to be displayed.
Information displayed in this graph is read from the V_MEAN.OUT output file. This output file is a Text File, and as such it can be opened with any text editor (e.g., Notepad) or a spreadsheet software (e.g., Microsoft Excel). Numbers in the output file are separated by spaces (i.e., not by commas or Tabs) and therefore it may be necessary to organize them into columns using some Excel commands, such as "Data->Text to Columns", "Original Data Type: Delimited", and "Delimiters: Spaces". The output files are located, similarly as all input files, in the Working Directory. The exact location of the project folder can be found in the Project Manager.
See the X-Y Graph topic for more information on this graph.
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