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Water Resources Management and Modeling
Dr. Samuel Sandoval SolisProfessor and Specialist in Water Management – UC Davis
Dr. Javier Camaño, Dra. Alejandra AcuñaSenior Scientist and Modeler - UC Davis Chile
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• Expectativas• Gestion del agua• Gobernanza del
agua• Modelos de
planeacion• Casos de estudio
• Eel River• Rio Aconcagua
• Recomendaciones
Indice
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• Comunicar un vision general
• Water Resources Management
• Relacionar proyectos de California y Chile
• Discusion
Expectativas
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Road map
Water Resources Planning and Management
Spatial and temporal characterization River Basin Management
Water Governance and
Decision Making Processes
Water Resources M
odelingCharacterization of governance- Roles and responsibilities - Bottom up vs Top-down
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Because water is not equitably distributed in time and place, in the right quantity with the adequate quality, a discipline called water resources planning and management is used to redistribute the resource in a way that satisfies the needs of water users, including the environment, today and in the future”
Discipline: Systematic instruction, series of techniques and methods
Water Planning and Management40%A
60%A
90%
10%
* Hanak et al. (2011). “Managing California’s Water. From Conflict to Reconciliation” <http://watershed.ucdavis.edu/research/waterpolicy.html>
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Water Planning and ManagementWater Supplies
- Mostly in Wet Season
- Mostly in north & east
Water Demands- Mostly in Dry
Season- Mostly central, west
and south
Disconnections Time- Reservoirs, &
groundwater use Space- Aqueducts, canals,
and pipes - Water Imports -
Exports
40%A
60%A
90%
10%
* Hanak et al. (2011). “Managing California’s Water. From Conflict to Reconciliation” <http://watershed.ucdavis.edu/research/waterpolicy.html>
Altered ClassesUrban – high densityUrban – medium densityUrban – low densityAgriculture – high crop LUAgriculture – medium crop LUAgriculture – low crop LUReservoirsLodging – LU changeMixed alteration
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Road map
Water Resources Planning and Management
Spatial and temporal characterization
(what)River Basin Management
Water Governance and
Decision Making Processes
Water Resources M
odelingCharacterization of governance- Roles and responsibilities - Bottom up vs Top-down
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Flood (Minutes & decades)Operation (days, weeks)Planning (months decades)Agriculture (Days, season years)Environment (Days, season, decade)Energy (hour, seasons)
Scales (t,s)
Farm
Small City
Irr. District
Watershed
Med. City
Tributary
Sub Basin
Basin
Polit. Bound.
Overall rules
Medium to long term planning
Definition of investments
Standard operation procedures
Detailed instructions
Day to day operation
Type of DecisionsPlanningOperation
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Road map
Water Resources Planning and Management
Spatial and temporal characterization
(what)
River Basin Management(how)
Water Governance and
Decision Making Processes
Water Resources M
odelingCharacterization of governance- Roles and responsibilities - Bottom up vs Top-down
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River Basin Management
DecisionSupportSystem
Data Measurement
Precipitation, Temperature, Humidity, StreamflowWater Quality, Groundwater, Snow pack,
Evapotranspiration
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Data Processing &
Archiving
Geo DatabaseData/Statistical modelData display
Analysis
Rainfall/runoff, Flooding, Climate Change, Water Allocation,
Water Pollution, Environmental Flows
Decision Making
Allocation rulesExpert systemOptimization, Operation rulesRisk Management, Dispute Resolution
Decision Implementation
Infrastructure control, Institutional policies & incentives
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Road map
Water Resources Planning and Management
Spatial and temporal characterization
(what)
River Basin Management(how)
Water Governance and Decision Making Processes
(who and when)
Water Resources M
odelingCharacterization of governance- Roles and responsibilities - Bottom up vs Top-down
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Scientist(s) Inform
Decision Maker(s)
$$$
Water Governance
Social (Econ. & Political), Physical & Environ. Context
Need
+ Inst.
+Stake
Holders
Water Governance and Decision Making ProcessDecision Making Process
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Road map
Water Resources Planning and Management
Spatial and temporal characterization
(what)
River Basin Management(how)
Water Governance and Decision Making Processes
(who and when)
Water Resources M
odelingCharacterization of governance- Roles and responsibilities - Bottom up vs Top-down
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Water Supply AgencyGov. institutionFinancial InstitutionScience-based OrganizationWater Users
Water AllocationWater OperationWater PlanningRegulatorsFinanceIrrigationCommunication of Knowledge
Roles Responsibilities
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EXPLOTACIÓN DE RECURSOS HÍDRICOS
DIRECCION GENERAL DE AGUAS (DGA)
• Control de extracciones• Patente por no uso• Análisis de disponibilidad hídrica
(estaciones monitoreo)• Conservación (apelando a la
sustentabilidad del recurso)
INSTITUTO DE DESARROLLO AGROPECUARIO (INDAP)
Facilita, gestiona postulación a subsidios para proyectos de riego principalmente pequeños agricultores
DIRECCIÓN DE OBRAS HIDRÁULICAS (DOH)
• Estudio de obras• Proyectos y construcción de
obras hidráulicas mayores• Construcción y mantención de
sistemas de agua potable rural
DIRECCIÓN DE OBRAS HIDRÁULICAS (DOH)
• Estudio de obras• Proyectos y construcción de
obras hidráulicas mayores• Construcción y mantención de
sistemas de agua potable rural
EXPLOTACIÓN DE RECURSOS
HÍDRICOS
Acuña A. (2015). Diagrama Institucional gestión del agua en la comuna de Salamanca. Reporte.
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•Bottom-up or Top-Down•Participatory or Non-participatory
•Centralized or Decentralized
•Single Vs. Multiple laws and regulations
Stakeholder Involvement
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Policies & Policy Outcomes
Policy “X”Social, Political & Env.
Context
Conseq. AConseq. B
…
Conseq. Z
Policy “X”
Social Conditions Economic Conditions Political Conditions
Window of Opportunity
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Eel River Basin
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Context•Cannabis has been grown in CA since 1795
•Cannabis was legal for medicinal (1996) and recreational (2016)
•79% production in US (2010)
•$10-$15 billion
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Eel River Basin
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• Inform decision makers for determining Ecological Flow Criteria (“e-flows”)
• Develop a regional method for e-flows
• Develop guidelines and materials for their implementation in CA
Objectives of the study
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- PRISM
Precipitation Atmospheric Variables- CIMIS
Paradigm (Rainfall– Runoff – GW model )
RunoffSW – GW interactions
Regional Chanel Class
Decision Support Tool
Water rights database
- Permitted- IllegalScenarios- Offstream storage- Forbearance period
WEAP ModelWater Availability Model
Hydrologic
Environmental Flows
HydraulicModeling
Ecosystem Response Curves
Demand and Strategies
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Environmental Flows in CaliforniaReference-based Flow Criteria
Metrics @ 200 metersThroughout the state!
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Environmental Flows in the Age of AI
Flow – Form - FunctionFlows Geomorphology Flow Ecology Response
+ =
Flow Regimes Geomorphology Flow – Ecology Response
Species Preference
Refined Flow Criteria
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River Basin Management
DecisionSupportSystem
Data Measurement
Precipitation, Temperature, Humidity, StreamflowWater Quality, Groundwater, Evapotranspiration
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Data Processing &
Archiving
Geo DatabaseData/Statistical modelData display
Analysis
Rainfall/runoff, Water Availability Model,
Eco-hydraulics Model
Decision Making
Surface water diversion rules
Decision Implementation
Reporting, monitoring, enforcement
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Scientist(s) Inform
Decision Maker(s)
$$$
Water Governance
Social (Econ. & Political), Physical & Environ. Context
Need
+ Inst.
+Stake
Holders
Water Governance and Decision Making ProcessDecision Making Process
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Most importantly …“People don’t care how much you know … people want to know how much you care”
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- San Felipe- Putaendo Rdo. Los Patos- Limache
Precipitación Evaporación- Vilcuya- Quillota
MPL Phyton (Phyton 2.7)
Escorrentía superficial y subterránea cuencas de entrada y laterales
Modelo WEAP*Caudal estaciones fuviométricas
- Aconcagua en Chacabuquito- Aconcagua en Romeral- Aconcagua en San felipe
Recarga agua subterránea
Groundwater VistasNiveles de agua subterránea
Evapotranspiración de cultivos
* El modelo WEAP utiliza la metodología del balance de masas y asigna agua para satisfacer las distintas demandas