[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

New Phreeqci (interface)




----- Forwarded by Scott R Charlton/WRD/USGS/DOI on 09/06/2001 09:44 AM
-----
|---------+--------------------------->
|         |           "Kavita Gosavi" |
|         |           <kavitagosavi@xx|
|         |           tmail.com>      |
|         |                           |
|         |           09/05/2001 05:29|
|         |           PM              |
|         |                           |
|---------+--------------------------->
  >-----------------------------------------------------------------------------------------------------------------------|
  |                                                                                                                       |
  |        To:      charlton@xxxxxxxx                                                                                     |
  |        cc:                                                                                                            |
  |        Subject: New Phreeqci (interface)                                                                              |
  >-----------------------------------------------------------------------------------------------------------------------|



Hello Scott,

My name is Kavita and I am presently finishing off my PhD in geochemistry.
I
downloaded the new phreeqci graphical interface and ran a test example
through. When compared to the results i got from running the same example
through wateq4f and netpath, i came upon some unusual errors. Firstly the
charge balance, or percent error, was off by more then 8%. As well, there
seemed be some errors in carbonate speciation(about 10x smaller). This then

affected the IAP's of the calulated phases (mostly related to carbonate).
With wateq4f and netpath bicarbonate is entered, however using the
interface
it looks like you enter carbonate concentrations. What confuses me is that
when the input appears C(4) notation is used, which I thought was for
bicarbonate. Am i missing something? I entered by bicarbonate
concentrations
and got errors, should i be entering carbonate concentrations?
Cheers
Kavita

_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp






Project Home Page
Complete Water Resources Division Software
USGS Home Page
Water Resources Division Home Page
NRP Home Page
Help Page
USGS Privacy Statement       

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: https://wwwbrr.cr.usgs.gov/projects/GWC_coupled/phreeqc/mail/msg00304.html
Email:dlpark@usgs.gov
Last modified: $Date: 2005-09-13 21:04:21 -0600 (Tue, 13 Sep 2005) $
Visitor number 3071 since Jan 22, 1998.