> 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
Please note that some U.S. Geological Survey (USGS) information accessed through this page may be preliminary in nature and presented prior to final review and approval by the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the sole responsibility of the user.
Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government.
The URL of this page is:
Last modified: $Date: 2005-09-13 21:04:21 -0600 (Tue, 13 Sep 2005) $
Visitor number 2305 since Jan 22, 1998.