WRIMS: Water Resource Integrated Modeling System

Our Water Resource Integrated Modeling System (WRIMS model engine or WRIMS) (formally named CALSIM) is a generalized water resources modeling system for evaluating operational alternatives of large, complex river basins. WRIMS integrates a simulation language for flexible operational criteria specification, a linear programming solver for efficient water allocation decisions, and graphics capabilities for ease of use. These combined capabilities provide a comprehensive and powerful modeling tool for water resource systems simulation.

WRIMS 2 includes an open source Cbc solver and a commercial solver named XA which needs the users to purchase a license.

License Information: WRIMS 2 is copyrighted by the State of California Department of Water Resources. It is licensed under the Eclipse Public License, Version 1.0. See Eclipse Public License for more details.

The WRIMS 2 software and related guides and references may be downloaded at the following links and unzipped to the local computer:

• WRIMS 2.2.0
• WRIMS 2 GUI Quick Start Manual
• WRIMS 2 GUI Demo
• WRESL Language Reference
• WRESL Plus Language Reference

To purchase a license of the XA solver, please contact Sunset Software Technology.