Integrated Water Management Modeling for Climate ... · Integrated Water Management Modeling •...
Transcript of Integrated Water Management Modeling for Climate ... · Integrated Water Management Modeling •...
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NEBRASKA’S WATER MANAGEMENT RESOURCE Providing the sound science and support for managing
Nebraska’s most precious resource.
Integrated Water Management Modeling for Climate Variability Study in Niobrara River Basin
Mahesh Pun, EIT Integrated Water Management Analyst Nebraska Department of Natural Resources
2015 Groundwater Foundation National Conference Lincoln, Nebraska October 21st, 2015
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Nebraska Department of Natural Resources
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What we do:
Provide technical expertise,
planning, and coordination
Develop models
Conduct studies
Help water managers
Collaborate with NRDs and other
stakeholders
To help better understand: • Nebraska’s water supplies and uses • The effects of potential water management strategies
Integrated Water Management Division
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Introduction and Background
• Niobrara River basin Study - a collaborative effort by the Nebraska Department of
Natural Resources and the U.S. Bureau of Reclamation - evaluate the current and future water supply and demand
to identify potential adaptation strategies to reduce any identified gaps
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• Intergovernmental Panel on Climate Change (IPCC) - Couples Model Intercomparison Project Phase 3 (CMIP3) - General Circulation Model (GCM) projections downscaling
Climate Variability Projection
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Climate Variability Projection
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Climate Variability Projection
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Historical Trends in Niobrara Basin
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• Projection Analysis Results
Climate Variability Projection
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Integrated Water Management Modeling
• Change in one hydrological component may affect the other components of the system
• Integrated Water Management (IWM) Model for better
understanding of - interaction between surface water and groundwater systems - response of different hydrological components to stress • Integrated Water Management (IWM) Model for - evaluation of basin water supply and use - effective management of water resources
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Integrated Water Management Modeling
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Framework for IWM Modeling
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Framework for IWM Modeling
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Framework for IWM Modeling
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Application of IWM Modeling
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Total Flow
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Baseflow
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Reservoir Release
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Surface water Diversion
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Alternative water Management Scenario • Mirage Flats Pumping Station Scenario (Alt1)
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Alternative water Management Scenario • Mirage Flats Canal Recharge (Alt2)
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Alternative water Management Scenario • Alternative water management scenario comparison
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Alternative water Management Scenario • Alternative water management scenario comparison
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Alternative water Management Scenario • Alternative water management scenario comparison
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Summary
• Projections of GCM used to analyze the condition of future water availability of Niobrara basin
• Better understanding of the response of hydrological
components to future climate projections with integrated water management model
• Application of Integrated water management model is
necessary for adaptation and effective management of water resources to changing environment
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NEBRASKA’S WATER MANAGEMENT RESOURCE Providing the sound science and support for managing
Nebraska’s most precious resource.
Nebraska Department of Natural Resources 402-471-2363 dnr.nebraska.gov
THANK YOU Mahesh Pun, EIT Integrated Water Management Analyst [email protected] 402-471-3959