1. General Model Information

Name: CE-QUAL-W2 V3: hydrodynamic and water quality model

Acronym: CE-QUAL-W2

Main medium: aquatic
Main subject: hydrodynamics, biogeochemistry, population dynamics, hydrology, other
Organization level: Ecosystem, Not applicable
Type of model: partial differential equations, partial differential equations (2D), not specified
Main application: Management tool, decision support/expert system, research, education
Keywords: reservoir, river, lake, estuary, water quality, hydrodynamics, laterally averaged, water quality, hydrodynamics, reservoir, estuary, river, lake,laterally averaged, flow, transport


Tom Cole
3909 Halls Ferry Road
Vicksburg, MS 39180-6199
Phone: (601) 634-3283
Fax: (601) 634-3129
email: Thomas.M.Cole@erdc.usace.army.mil


Tom Cole and Scott Wells


CE-QUAL-W2 is a longitudinal/vertical hydrodynamic and water quality model that has received extensive use throughout the US and the world as a management and research tool with more than 300 applications worldwide. V3 is a significant update to CE-QUAL-W2 V2 that now includes the ability to model multiple waterbodies and the river reaches in between them. The model can now be applied to entire waterbasins including rivers, reservoirs, and estuaries.

A number of additional capabilities have been added to the kinetic routines in V3 including multiple algal, suspended solids, and CBOD groups, residence time, derived variables such as TN, TKN, TOC, chl a, total dissolved gas, etc. The model now has the ability to be as simple or complicated as the application demands and the data allow. With the addition of sloping river sections, the user now has the option to choose between various vertical turbulence closure and rearation schemes depending upon the type of waterbody being simulated. Version 3 also includes enhancements that allow modeling of weirs/spillways, gates, pipes, and pumps for highly engineered systems. Planned future enhancements include sediment transport, contaminants, zooplankton, periphyton, macrophytes, and sediment diagenesis capabilities.

Author of the abstract:


II. Technical Information

II.1 Executables:

Operating System(s): Windows 95/98/NT/Me/2000, Unix, Linux


II.2 Source-code:

Programming Language(s): FORTRAN 90/95

II.3 Manuals:

CE-QUAL-W2: A Two-Dimensional, Laterally Averaged Hydrodynamic and Water Quality Model, Version 3.0

II.4 Data:

Meteorlology, inflow/outflow, inflow temperature/constituent concentrations, water surface elevations

III. Mathematical Information

III.1 Mathematics


III.2 Quantities

Residence time
Inorganic suspended solids (multiple groups)
Total dissolved solids/salinity
Bioavailable phosphorus
Labile dissolved organic matter
Refractory dissolved organic matter
Labile particulate organic matter
Multiple algal groups
Multiple CBOD groups

III.2.1 Input

Inflow/outflow and/or head boundary conditions
Inflow/constituent concentrations

III.2.2 Output

Spreadsheet, profile, contour, vector, and time series output at any frequency

IV. References

User's manual:
Cole, T.M. and S. Wells., 2000. CE-QUAL-W2: A Two-Dimensional, Laterally Averaged, Hydrodynamic and Water Quality Model, Version 3.

Wells, S. A. , 2000: Hydrodynamic and Water Quality River Basin Modeling Using CE-QUAL-W2 Version 3. in: Development and Application of Computer Techniques to Environmental Studies, ed by G. Ibarra-Berastegi, C. Brebbia, P. Zannetti, WIT Press, Boston, 195-204.

Wells, S. A., 2000: CE-QUAL-W2 Version 3: Hydrodynamic and Water Quality River Basin Modeling. Proceedings, HydroInformatics 2000, IAHR, CDROM_EM5. Classes Fall 2001: CE 572/672 Environmental Fluid Mechanics

Wells, S. A., 1999: River Basin Modeling Using CE-QUAL-W2 Version 3. Proc. ASCE Inter.Water Res. Engr. Conf., Seattle, WA, 1999.

Wells, S. A., 1997: Theoretical Basis for the CE-QUAL-W2 River Basin Model," Dept. of Civil Engr., Tech. Rpt. EWR-6-97, Portland St. Univ., Portland, OR, 1997.

Berger, C. and Wells, S., 1999: Hydraulic and Water Quality Modeling of the Columbia Slough, Volume 1: Model Description, Geometry, and Forcing Functions. Dept. of Civil Engr., Tech. Rpt. EWR-2-99, Port. St. Univ., Portland, OR, 1999.

Over 200 reports and journal articles are listed in the manual

V. Further information in the World-Wide-Web

VI. Additional remarks

A search for CE-QUAL-W2 at http://www.google.com will generate hundreds of links to the model including model applications, journal articles, conference abstracts, and reports. Additionally, a number of GUI pre/postprocessors have been developed by others for free/fee for V2 (a web search at google.com will generate the relevant links). Several developers have or are planning to upgrade the GUI's to V3. V2 is still available for use on single lakes, rivers, reservoirs, and estuaries and can be obtained by e-mailing a request to Thomas.M.Cole@erdc.usace.army.mil

Last review of this document by: Tom Cole, Wed May 23 15:59:42 2001
Status of the document: contributed by Tom Cole
last modified by Tobias Gabele Wed Aug 21 21:44:40 CEST 2002

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