Overview of Overview of WEAPWEAP

Water Evaluation and Water Evaluation and Planning SystemPlanning System

WEAPWEAP

A generic, object-oriented, A generic, object-oriented, programmable, integrated water programmable, integrated water resources management modelling resources management modelling platformplatform

WEAP StructureWEAP Structure

Node-link architecture connects water Node-link architecture connects water supplies to demandssupplies to demands

Each demand is assigned a priority and a Each demand is assigned a priority and a preferences among available suppliespreferences among available supplies Determines order in which demands are metDetermines order in which demands are met Determines order in which sources are usedDetermines order in which sources are used

Constrained by link capacitiesConstrained by link capacities LP solution optimizes distribution of water LP solution optimizes distribution of water

at each time stepat each time step

Examples of Examples of AnalysesAnalyses

Sectoral demand analysesSectoral demand analyses Water conservationWater conservation Water rights and allocation prioritiesWater rights and allocation priorities Groundwater and streamflow Groundwater and streamflow

simulationssimulations Reservoir operationsReservoir operations Hydropower generationHydropower generation Pollution trackingPollution tracking Ecosystem requirementsEcosystem requirements

Extent of UseExtent of Use

Visits to WEAP21 WebsiteVisits to WEAP21 WebsiteOct 28, 2007 - May 14, 200832,227 visits from 2564 cities

WEAP ApplicationsWEAP Applications Water Systems PlanningWater Systems Planning

Small Reservoirs Project, Ghana/BrazilSmall Reservoirs Project, Ghana/Brazil California Water Plan, California, USACalifornia Water Plan, California, USA Guadiana River, SpainGuadiana River, Spain

Transboundary Water PolicyTransboundary Water Policy Okavango River, Angola/Namibia/BotswanaOkavango River, Angola/Namibia/Botswana Lower Rio Grande, USA/MexicoLower Rio Grande, USA/Mexico Mekong River, Thailand/Cambodia/Vietnam/LaosMekong River, Thailand/Cambodia/Vietnam/Laos Jordan River, Syria/Israel/JordanJordan River, Syria/Israel/Jordan

Climate Change StudiesClimate Change Studies Sacramento and San Joaquin River Basins, California, USASacramento and San Joaquin River Basins, California, USA Massachusetts Water Resources Authority, Massachusetts, USAMassachusetts Water Resources Authority, Massachusetts, USA Yemen Second National CommunicationYemen Second National Communication Mali Second National CommunicationMali Second National Communication

Ecological FlowsEcological Flows Connecticut Department of Environmental Protection, Connecticut Department of Environmental Protection,

Connecticut, USAConnecticut, USA Town of Scituate, Massachusetts, USATown of Scituate, Massachusetts, USA

Study DefinitionSpatia l Boundary System C om ponentsT im e H orizon N etwork C onfiguration

EvaluationW ater Suffic iency Ecosystem R equirem entsPollu tant Loadings Sensitiv ity Analysis

Current AccountsD em and Pollu tant G enerationR eservoir C haracteristics R esources and SuppliesR iver S im ulation W astewater T reatm ent

ScenariosD em ographic and Econom ic Activ ityPatterns of W ater U se, Pollu tion G enerationW ater System InfrastructureH ydropowerA llocation, P ric ing and Environm ental PolicyC om ponent C ostsH ydrology

WEAP CapabilitiesWEAP Capabilities Easy to use interface facilitates learning, Easy to use interface facilitates learning,

data input, and scenario developmentdata input, and scenario development Input can be from files or user specified functionsInput can be from files or user specified functions Multiple scenarios can be run and displayed Multiple scenarios can be run and displayed

graphically at one timegraphically at one time Use of notes allows for internal documentation of Use of notes allows for internal documentation of

scenariosscenarios Hydrology may be climate driven or from gage dataHydrology may be climate driven or from gage data Several internal modules to choose from (eg Several internal modules to choose from (eg

Hydropower generation, Financial analysis, Water Hydropower generation, Financial analysis, Water quality)quality)

Dynamically links to other modelsDynamically links to other models

WEAP Network SchematicWEAP Network SchematicLinking supply

and demand

Return flows to surface or ground

water or treatment plants

5 Main Views

Menu bar

WEAP CapabilitiesWEAP Capabilities Easy to use interface facilitates learning, data input, Easy to use interface facilitates learning, data input,

and scenario developmentand scenario development Input can be from files or user specified Input can be from files or user specified

functionsfunctions Multiple scenarios can be run and displayed Multiple scenarios can be run and displayed

graphically at one timegraphically at one time Use of notes allows for internal documentation of Use of notes allows for internal documentation of

scenariosscenarios Hydrology may be climate driven or from gage dataHydrology may be climate driven or from gage data Several internal modules to choose from (eg Several internal modules to choose from (eg

Hydropower generation, Financial analysis, Water Hydropower generation, Financial analysis, Water quality)quality)

Dynamically links to other modelsDynamically links to other models

Data ViewData ViewData for the

demand sites is displayed

numerically and graphically

Reading from FilesReading from FilesRead in timeseries data from text files or Access database

Building expressionsBuilding expressionsUse the time series

wizard or expression builder

WEAP CapabilitiesWEAP Capabilities Easy to use interface facilitates learning, data Easy to use interface facilitates learning, data

input, and scenario developmentinput, and scenario development Input can be from files or user specified functionsInput can be from files or user specified functions Multiple scenarios can be run and Multiple scenarios can be run and

displayed graphically at one timedisplayed graphically at one time Use of notes allows for internal documentation of Use of notes allows for internal documentation of

scenariosscenarios Hydrology may be climate driven or from gage Hydrology may be climate driven or from gage

datadata Several internal modules to choose from (eg Several internal modules to choose from (eg

Hydropower generation, Financial analysis, Hydropower generation, Financial analysis, Water quality)Water quality)

Dynamically links to other modelsDynamically links to other models

Results ViewResults ViewResults can be displayed in a

number of formats and

scales

Results Displayed on the Map

Scenario ExplorerScenario Explorer

Favorite charts can be selected to

give quick overviews

WEAP CapabilitiesWEAP Capabilities Easy to use interface facilitates learning, data Easy to use interface facilitates learning, data

input, and scenario developmentinput, and scenario development Input can be from files or user specified functionsInput can be from files or user specified functions Multiple scenarios can be run and displayed Multiple scenarios can be run and displayed

graphically at one timegraphically at one time Use of notes allows for internal Use of notes allows for internal

documentation of scenariosdocumentation of scenarios Hydrology may be climate driven or from gage Hydrology may be climate driven or from gage

datadata Several internal modules to choose from (eg Several internal modules to choose from (eg

Hydropower generation, Financial analysis, Hydropower generation, Financial analysis, Water quality)Water quality)

Dynamically links to other modelsDynamically links to other models

Notes ViewNotes View

Select any part of the tree to enter

notes about assumptions and

references

WEAP CapabilitiesWEAP Capabilities Easy to use interface facilitates learning, data Easy to use interface facilitates learning, data

input, and scenario developmentinput, and scenario development Input can be from files or user specified functionsInput can be from files or user specified functions Multiple scenarios can be run and displayed Multiple scenarios can be run and displayed

graphically at one timegraphically at one time Use of notes allows for internal documentation of Use of notes allows for internal documentation of

scenariosscenarios Hydrology may be climate driven or Hydrology may be climate driven or

from gage datafrom gage data Several internal modules to choose from (eg Several internal modules to choose from (eg

Hydropower generation, Financial analysis, Water Hydropower generation, Financial analysis, Water quality)quality)

Dynamically links to other modelsDynamically links to other models

HydrologyHydrology

Read-from-file Read-from-file MethodMethod

Historical or synthetic Historical or synthetic datadata

Import from ASCII filesImport from ASCII files

Rainfall-RunoffRainfall-Runoff Lumped parameterLumped parameter Semi-distributedSemi-distributed Sub-watershed specificSub-watershed specific Climate inputClimate input

Simplified Water-Simplified Water-Year MethodYear Method

Describe a series of Describe a series of water year types from water year types from very dry to very wetvery dry to very wet

Enter the water year Enter the water year sequencesequence

WEAP CapabilitiesWEAP Capabilities Easy to use interface facilitates learning, data Easy to use interface facilitates learning, data

input, and scenario developmentinput, and scenario development Input can be from files or user specified functionsInput can be from files or user specified functions Multiple scenarios can be run and displayed Multiple scenarios can be run and displayed

graphically at one timegraphically at one time Use of notes allows for internal documentation of Use of notes allows for internal documentation of

scenariosscenarios Hydrology may be climate driven or from gage dataHydrology may be climate driven or from gage data Several internal modules to choose fromSeveral internal modules to choose from

((eg Hydropower generation, Financial analysis, Water eg Hydropower generation, Financial analysis, Water qualityquality))

Dynamically links to other modelsDynamically links to other models

HydropowerHydropower

Specify capacities,

efficiencies, and other properties

of power generation

Financial AnalysisFinancial Analysis

Specify variable and fixed costs and revenues

Water QualityWater Quality

Specify pollutant loadings

WEAP CapabilitiesWEAP Capabilities Easy to use interface facilitates learning, data Easy to use interface facilitates learning, data

input, and scenario developmentinput, and scenario development Input can be from files or user specified functionsInput can be from files or user specified functions Multiple scenarios can be run and displayed Multiple scenarios can be run and displayed

graphically at one timegraphically at one time Use of notes allows for internal documentation of Use of notes allows for internal documentation of

scenariosscenarios Streamflows may be climate driven or from gage Streamflows may be climate driven or from gage

datadata Several internal modules to choose from (eg Several internal modules to choose from (eg

Hydropower generation, Financial analysis, Water Hydropower generation, Financial analysis, Water quality)quality)

Dynamically links to other modelsDynamically links to other models

Linking WEAP to Other Linking WEAP to Other SoftwareSoftware Customized/Programmed links Customized/Programmed links

Groundwater flow model Groundwater flow model MODFLOWMODFLOW

Surface water quality modelSurface water quality model Qual2KQual2K

User-defined links to dynamic-link librariesUser-defined links to dynamic-link libraries California Department of Water ResourcesCalifornia Department of Water Resources

Delta salinity modelDelta salinity model East-Bay Municipal Utilities DistrictEast-Bay Municipal Utilities District

Reservoir operations modelReservoir operations model Call WEAP using application programming Call WEAP using application programming

interface (API)interface (API) Scenario analysisScenario analysis

CARS (RAND Corporation)CARS (RAND Corporation) Model calibration Model calibration

PESTPEST Sensitivity analysisSensitivity analysis

VB scriptVB script

Linking WEAP to Linking WEAP to MODFLOWMODFLOW

Linking WEAP to Linking WEAP to MODFLOWMODFLOW

WEAP HighlightsWEAP Highlights Integrated water resources planning systemIntegrated water resources planning system GIS-based, graphical drag and drop GIS-based, graphical drag and drop

interfaceinterface Model-building tool Model-building tool –– user-created variables user-created variables

and modeling equationsand modeling equations Basic Methodology: physical simulation of Basic Methodology: physical simulation of

demands and suppliesdemands and supplies Scenario management capabilitiesScenario management capabilities Dynamic links to spreadsheets & other Dynamic links to spreadsheets & other

modelsmodels