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Re: inverse model for unsat




> Currently, I am working on modeling geochemistry for the acid sulfate
soil
in Thailand and I am intersted in using the PHREEQC inverse modeling to
come up with amount of mass transfer between an upper (upgradient) and
a lower (downgradient) locations. they both are in the same flowpath as
teh water infiltrates downward. However, both locations are in the unsat
zone. I am wondering if PHREEQC will be applicable in this case.

You should be able to use inverse modeling if the downgradient water
evolves from the upgradient water. It is also possible to consider the
evolution of rain to each of the waters, if this is the basic situation you
are considering.

David



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

Project web page: http://wwwbrr.cr.usgs.gov/projects/GWC_coupled




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