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WEAP Water Evaluation & Planning System www.weap21.org weap@tellus.org. WEAP Highlights. Integrated water resources planning system. GIS-based, graphical drag & drop interface. Basic methodology: physical simulation of water demands and supplies.
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WEAPWater Evaluation & Planning Systemwww.weap21.orgweap@tellus.org
WEAP Highlights • Integrated water resources planning system. • GIS-based, graphical drag & drop interface. • Basic methodology: physical simulation of water demands and supplies. • Additional simulation modeling: user-created variables and modeling equations. • Scenario management capabilities. • Links to spreadsheets & other models
Can do High level planning and strategic analysis at local, national and regional scales Demand management Water allocation Cannot do Daily operations Least-cost optimization of supply and demand WEAP Capabilities
Examples of Analyses • Sectoral demand analyses • Water conservation • Water rights and allocation priorities • Groundwater and streamflow simulations • Reservoir operations • Hydropower generation • Pollution tracking • Ecosystem requirements
Selected Projects • California • Impacts of climate change and other stressors on ecosystem services • Volta and Syr Darya • Food and environmental security • China • Providing a basis for cooperation/negotiation between Beijing and upstream water users • South Africa • Moving towards equity in water use
WEAP for Vulnerability… …& Adaptation… • Alternative baseline scenarios can examine vulnerability of water supplies to different demographic, technological, & climatalogical/hydrological futures. • Alternative policy scenarios can explore demand and supply management options for adapting to future vulnerability. • Implications for the multiple and competing demands on water systems. • Implications of policies can be evaluated (ability to meet water needs, hydropower availability, pollution loadings, costs, etc.)
Schematic View Click and drag to create a new demand site
Data View Data is displayed numerically and graphically
Results can be displayed in wide range of formats and scales Results View
Overviews Favorite charts can be selected to give quick overviews
Sectoral Water Demands Irrigation Ecosystems Livestock Domestic Total Water Demand Mining Commercial Industrial MajorCities
Illustrative Demand Structure SECTOR SUBSECTOR END-USE DEVICE Furrow Sprinkler Drip Standard Efficient ... Kitchen Bathing Washer Toilet ... Agriculture Industry Municipal Irrigation ... Cooling Processing Others Single Family Multi-family ... Cotton Rice Wheat ... Electric Power Petroleum Paper ... South City West City ...
Supplies • Rivers • Groundwater • storage capacity • maximum monthly withdrawal • natural recharge • Diversions (e.g. canals, pipelines) • Reservoirs • Other (e.g. desalination)
Read-from-File Method Historical or synthetic data, imported from data files Water-Year Method Create a series of water year “types” from very dry through normal to very wet (5 types). For each scenario year specify its type. Use to examine alternative climate scenarios. Hydrology
Hydropower Capacities, efficiencies, and other properties of power generation
Supply Priorities Demand Preferences Allocation Order Priority Allocation of Water Resources
WEAP System Requirements • Windows 95 or later • 32 MB of RAM (64 MB suggested) • Imports from/exports to Excel and Word (not required). • Uses standard ArcView GIS “shape” files. ArcView is not required.
Availability • Evaluation version available at no charge (CDs available here) or download from http://www.weap21.org • Full version requires license, available from SEI-Boston. • Email weap@tellus.org • Training is needed for majority of users, available from SEI-Boston.
