Water Resources Applications Software

PHRQPITZ

Geochemical calculations in brines

Information

Summary of PHRQPITZ

Version history

UNIX or DOS installation instructions (README file)

How to order U.S. Geological Survey printed documentation

How to register to receive software update and enhancement notices

Software

Selection of the following options preceded by a binary icon retrieves a compressed UNIX tar file or a self-extracting DOS executable. A README file containing installation instructions is included with each of the software distribution files. There are separate README files for the UNIX and DOS distributions.

The Free Software Foundation's gunzip is necessary to uncompress the UNIX tar files available below. However, some World Wide Web browsers automatically uncompress retrieved files. Thus, running gunzip as stated in the installation instructions may be unnecessary.

PHRQPITZ compiled for...

Data General AViiON (190K)

Sun SPARCstation (Solaris) (160K)

IBM-compatible PC, 386 or higher with math coprocessor (530K)

IBM-compatible PC, 386 or higher with math coprocessor (includes source) (588K)

PHRQPITZ source code for compilation under...

UNIX (101K)

DOS (246K)

The above software can also be accessed via anonymous FTP from water.usgs.gov in the /pub/software/geochemical/phrqpitz directory.

Documentation

How to order U.S. Geological Survey printed documentation

Plummer, L.N., Parkhurst, D.L., Fleming, G.W., and Dunkle, S.A., 1988, A computer program incorporating Pitzer's equations for calculation of geochemical reactions in brines: U.S. Geological Survey Water-Resources Investigations Report 88-4153, 310 p.

Plummer, L.N., and Parkhurst, D.L., 1990, Application of the Pitzer Equations to the PHREEQE geochemical model, in Melchior, D.C., and Bassett, R.L., eds., Chemical modeling of aqueous systems II: American Chemical Society Symposium Series 416, Washington, D.C., American Chemical Society, p. 128-137.

Point of contact for PHRQPITZ:

U.S. Geological Survey

Hydrologic Analysis Software Support Program

437 National Center

Reston, VA 20192

(electronic mail: h2osoft@usgs.gov)