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Integrated Data and Analysis to Support the California Water Plan

This project aims to support the California Water Plan vision by improving analytical tools and data integration. Decision-making under uncertainties, promoting collaboration, and addressing various water management aspects are key goals. The initiative targets filling information gaps, addressing challenging issues, and quantifying management responses. Collaboration and feedback are integral to refining strategies. Key focus areas include regional water management, flood control, ecosystem restoration, and climate change adaptation.

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Integrated Data and Analysis to Support the California Water Plan

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  1. Integrated Data and Analysis to Support the California Water Plan

  2. Vision & Purposefor Analytical Tool and Data Improvements • Support decision making in light of uncertainties • Promote collaborative decision making, Shared Vision Planning • Support integrated water management regionally and statewide • Supply reliability, flood management, environmental restoration, water quality, economic efficiency, social equity

  3. Information and Modeling Needs • Information gaps and limitations • Land use, groundwater balances, local diversions, environmental conditions • 4 examples of technically challenging problems • Integrated regional water management • Integrated flood management • Ecosystem restoration • Adapting to climate change

  4. Water Plan Quantitative Deliverables • Accurately describe recent water management conditions (Water Portfolios) • Develop multiple baseline future conditions (Scenarios) • Identify alternative water management response packages (management strategies) • Evaluate performance of strategies in terms of benefits, costs, and tradeoffs • Evaluate interaction between local, regional, and statewide water management • Support Water Planning Information Exchange

  5. Water Plan team is developing tools to quantify costs, benefits, tradeoffs • Represent physical water management system • Quantify strategy benefits

  6. Some Limitations • More comprehensive look at three regions in Central Valley • Cannot represent all strategies • Cannot quantify all strategy benefits • Coarse representation of regional groundwater system *Tulare Lake excluded from pilot

  7. SWAN WorkshopAugust 2010 • Improve integration of analyses conducted for the Water Plan with analyses for Bay‐Delta Conservation Plan, Delta Plans, salinity studies, San Joaquin restoration studies, etc. 27 votes • Improve calibration of snowmelt and rainfall‐runoff processes of the upper watersheds. 16 votes. • Decouple consideration of land use and population in the scenarios. 11 votes. • Analyze flood management strategies in conjunction with water supply strategies. 10 votes.

  8. SWAN WorkshopMay 2011 • Breakout sessions • Model Output and Analysis Metrics • Water Management Response Packages • Evaluating Response Packages under Uncertainty (RDM) • Follow-up Survey • Next Steps

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