Contact

Name	Rob Runkel
Type of contact	Model developer
Institute / Organization	USGS
Postal address 1
Postal address 2
Town / City	Boulder
Postal code	80303
State	Colorado
Country	USA"USA" is not in the list (Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, ...) of allowed values for the "Country" property.
Email address	runkel@usgs.gov
Phone
Fax

OTEQ

Also known as
Model type	Single
Model part of larger framework
Note on status model
Date note status model

Supported platforms	Unix, Linux
Other platform
Programming language	Fortran77
Other program language
Code optimized	Single Processor
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development	1991
Does model development still take place?	Yes
If above answer is no, provide end year model development
Code development status
When did you indicate the 'code development status'?
Model availability	As code, As executable"As executable" is not in the list (As code, As teaching tool) of allowed values for the "Model availability" property.
Source code availability (Or provide future intension)	Through web repository
Source web address	http://water.usgs.gov/software/OTEQ/
Source csdms web address
Program license type	Other
Program license type other	http://water.usgs.gov/software/help/notice/
Memory requirements
Typical run time

Describe input parameters	see user documentation
Input format	ASCII
Other input format
Describe output parameters	Solute concentrations as a function of space and time
Output format	ASCII
Other output format
Pre-processing software needed?	Yes
Describe pre-processing software	All I/O is done with flat ASCII files; The 'MINTEQ Input file' is created using the Proteq utility; remaining input files may be created using a text editor
Post-processing software needed?	Yes
Describe post-processing software	All I/O is done with flat ASCII files; Output files are first processed by a utility (posteq) -- resultant files can then be plotted with the user's own software.
Visualization software needed?	No
If above answer is yes
Other visualization software

Describe processes represented by the model	Physical transport: Advection, Dispersion, Inflow, Transient Storage, and Settling. Chemistry: Precipitation/Dissolution, Sorption/Desorption, Oxidation/Reduction, aqueous complexation, and acid-base reactions
Describe key physical parameters and equations	Partial differential equations describing mass transport (Advection-Dispersion-Reaction equations) and algebraic equations describing chemical equilibria are coupled using the Sequential Iteration Approach
Describe length scale and resolution constraints
Describe time scale and resolution constraints
Describe any numerical limitations and issues	see numerical aspects described in Section 4 of the documentation

Describe available calibration data sets	see user documentation; also see applications at http://water.usgs.gov/software/OTEQ/apps/
Upload calibration data sets if available:
Describe available test data sets	see user documentation; also see applications at http://water.usgs.gov/software/OTEQ/apps/
Upload test data sets if available:
Describe ideal data for testing

Do you have current or future plans for collaborating with other researchers?

Is there a manual available?	Yes
Upload manual if available:	Media:TM6ChB6.pdf
Model website if any	http://water.usgs.gov/software/OTEQ/
Model forum / discussion board

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