Freshwater management challenges are increasingly common. Allocation of limited
water resources between agricultural, municipal and environmental uses now requires
the full integration of supply, demand, water quality and ecological considerations.
The Water Evaluation and Planning system, or WEAP, aims to incorporate these
issues into a practical yet robust tool for integrated water resources planning.
WEAP was developed by the Stockholm
Environment Institute's Boston Center at the Tellus
Institute. This SEI center is now independent of Tellus, and known as the Stockholm
Environment Institute U.S. Center.
WEAP Highlights
Integrated Approach
Unique approach for conducting integrated water resources planning assessments
Stakeholder Process
Transparent structure facilitates engagement of diverse stakeholders in
an open process
Water Balance
A database maintains water demand and supply information to drive mass
balance model on a link-node architecture
Simulation Based
Calculates water demand, supply, runoff, infiltration, crop
requirements, flows, and storage, and pollution generation,
treatment, discharge and instream water quality under varying hydrologic and policy scenarios
Policy Scenarios
Evaluates a full range of water development and management options, and
takes account of multiple and competing uses of water systems
User-friendly Interface
Graphical drag-and-drop GIS-based interface with flexible model output
as maps, charts and tables
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