Hydraulic
diffusivity estimation by graphic method of bisecting line is
available from the "Bisecting
line method" dialog box. The
dialog is launched from the main menu "Analysis
>
Bisecting line method" or right mouse
click in the lower right corner of the graph window plotted by
bisecting line method.
"Bisecting line method" dialog boxes.
Explanatory table
"Parameter"
tab


Specify
hydraulic diffusivity value for the plotting the graph

"Option"
tab


Supplementary
options for the method


"Width"
text box

Determine
thickness of the diagonal line used for parameter matching

"Color"
button

Determine color
of the line

"Plot"
option

Use the maximal
drawdown vs recovery plot for calculations

The result is
displayed on the plot of drawdowns in two observation wells: ratio
of measured values is plotted on the ordinate while calculated
values ratio on the abscissa.
Plot window for parameter estimation by method of bisecting
line.
If hydraulic
diffusivity values are deteremined correctly, plotted points lye on
the diagonal line, if not, deviate from it.
To inverse the
ratio and change the ordinate axis (s1
/
s2
change to
s2
/
s1)
use "Tools
>
Inversion"
menu.
