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(Web Site Last Updated: July 3, 2008)
CalLite: Central Valley Water Management Screening Model
OVERVIEW
Department of Water Resources, CA (DWR) and US Bureau of Reclamation mid-pacific region (USBR), have recently developed a screening model for planning and management of State Water Project and Central Valley Project in California. This screening model, named CalLite, simulates the hydrology of the Central Valley, reservoir operations, project operations and delivery allocation decisions, delta salinity responses to river flow and export changes, and habitat-ecosystem flow indices. While CalLite maintains the hydrologic, operational and institution integrity as represented in CalSim, the tool is easy to use and reduces runtime significantly. The simulation results obtained from a typical CalLite run are within 5% of a corresponding CalSim run while CalLite run time is less than 5 minutes.
CalLite simulates water conditions in the Central Valley over an 82-yr planning period ( water years 1922-2003) and allows interactive modification of a variety of water management actions including alternative conveyance options, storage options, and river and Delta channel flow and salinity targets. The screening tool is designed for use in a variety of stakeholder processes for improved understanding of water system operations and future management. CalLite can simulate observed hydrologic regimes or future possible climate change hydrologic regimes. The tool bridges the gap between more detailed system models (CalSim) managed by DWR and USBR and policy/stakeholder demand for rapid and interactive policy evaluations. CalLite can be applied to assist in the screening of a variety water management options and to educate decision makers on system responses.
CalLite uses proprietary software called GoldSim , which is system dynamics software and enables simulation of complex process through a build-up of simple object relationships, incorporates Monte-Carlo stochastic methods, and includes dynamic, interactive user interfaces. The player and developer versions of model and documentation for the current and past versions of CalLite can be downloaded through the following links.
Current CalLite Version
License
CalLite is copyrighted by the State of California Department of Water Resources. It is licensed under the GNU General Public License. This means it can be copied, distributed, and modified freely, but you may not restrict others in their ability to copy, distribute, and modify it. See GNU General Public License for more details.
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