PLOTCHEM - water-quality data plotting program; create piper (trilinear), stiff, radial, pie and bar diagrams
PLOTCHEM Categories: hydrogeochemical models, water quality
Graphical Presentation of Water-Quality Data & Mixing
Easy to Learn and Simple to Use
PLOTCHEM has the common Windows look and feel making the software easy to learn and simple to use. Sample data may be easily added, deleted or modified.
Data may either be entered manually or imported via a comma-delimited ASCII file. Project specific information, Well ID's, dates and other data may be entered. Existing PLOTCHEM batch files may be imported.
Hundreds of diagrams may be generated. Graphics may be saved in DXF or HPGL format.
The procedure for running the program is extremely simple. The user first enters all data samples (up to 1,000) through the main window (Figure 1). Then, options may be selected, plots generated and printed. Toolbar buttons are provided for:
The Cations and Anions are listed with edit boxes for entering the corresponding numerical values. Only those selected for Pie, Bar, Radial, and Stiff diagrams as well as those required for Trilinear diagrams appear in the data entry window.
Specific Gravity may also be entered for each sample. Project/Well/Laboratory data, Labels, and Legends for plots will be entered by default.
The following describes the menu items in PLOTCHEM.
File - File functions
New - Create a new PLOTCHEM (empty) file.
Print Preview - Preview sample data table, mixing analysis results or plots.
Input Data - Input Data Options
Miscellaneous - The user may specify the diagrams which may be generated and input/output units. The Miscellaneous dialog box is shown in Figure 3.
Two constituent components may be specified for each Cation and Anion. Each component of the three Cation and Anion constituents are selected from dropdown lists. A "blank" line indicates that no selection is made.
The possible Cation and Anion constituents are:
Two constituent components may be specified for each Cation and Anion. Each component of the four Cation and Anion constituents are selected from dropdown lists. A "blank" line indicates that no selection is made. The possible Cations and Anions are shown above.
The Stiff diagrams are constructed using four horizontal lines and eight constituents (or combinations). The two dashed middle lines may be omitted, if desired.
Three methods are available for generating Trilinear Diagrams:
The cross-hatches on the triangular and diamond areas of the Trilinear diagram may be omitted for clarity.
The size of the Trilinear diagram may be maximized by omitting Labels and Legends from the diagram.
NO3, if selected, is included with Cl, and PO4, if selected, is included with HCO3 and CO3 on the Trilinear diagram.
Circles whose radii represent the total concentrations expressed in meq/l may be drawn in the diamond field of the diagram. Either an arithmetic or logarithmic scale may be used. The maximum Arithmetic Concentration circle radius may be specified.
Labels and Legends may be placed on the Trilinear diagram. The labels may be omitted, if desired, by leaving blank fields.
Sample - Show sample data in main Window.
PLOTCHEM Options - Colors - The colors for various parts of the plots may be selected. See Figure 7.
PLOTCHEM Analysis - Perform Mixing Analysis
As all possible sets of three points are checked, if a postulated mixing point falls away from a straight line by more than this tolerance, that set of three points is rejected from consideration as a mixing system.
PLOTCHEM Printing - Prints either Mixing results or Sample data.
Mixing Results - Two- and/or Three-way mixing analyses results may be printed if they were generated.
Sample Data - Sample data in all units may be printed. Anion/Cation balances may be printed.
This product is no longer commercially available. However, it can be downloaded for free on our download site.
Please reference the link below for updated products with simular functionality.
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Scientific Software Group P.O. Box 708188 Sandy, Utah 84070
Phone (801) 208-3011 Toll Free (U.S.) 1-866-620-9214 Fax (801) 302-1160 E-mail firstname.lastname@example.org
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