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Re: Transport problem




> In selected output-file of version 2.2 (upward) alkalinities are always
zero

You need to use the identifier -alkalinity in SELECTED_OUTPUT to print the
alkalinity to the selected-output file. Including Alkalinity in the list
for -totals does not work for alkalinity.

> (see excel-sheets) and pH-values are only realistic for cell 1 and cell
2.

Both versions appear to be consistent in calculating a pH of 10. I believe
the program is making the proper calculation for the conditions that you
have specified. You need to look at the changes in the distribution of
species for the surface complexes to see what is causing the high pH
values. It is probably related to the selection of log K values for the
surface complexes and the initial conditions.

David


David Parkhurst (dlpark@xxxxxxxx)
U.S. Geological Survey
Box 25046, MS 413
Denver Federal Center
Denver, CO 80225




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