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Drought Preparedness Planning & Drought Response in California Jeanine Jones, CDWR.

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Presentation on theme: "Drought Preparedness Planning & Drought Response in California Jeanine Jones, CDWR."— Presentation transcript:

1 Drought Preparedness Planning & Drought Response in California Jeanine Jones, CDWR

2 Lessons Learned from Past California Droughts Impacts are highly site-specific, and vary depending on the ability of water users to invest in reliability Shortages stem from both hydrologic & regulatory drought Small water systems on fractured rock groundwater sources are most at risk of public health and safety impacts Larger urban water agencies can manage 3-4 years of drought with minimal impacts to their customers The greatest economic impacts of drought in California have been associated with wildfire and forestry damages, not with urban & agricultural water uses

3 Tools for Managing Drought Californias water infrastructure (which facilitates water transfers & exchanges) Groundwater Institutional framework for preparedness Response actions such as outreach & conservation


5 Institutional Framework Historically, $billions in state funding to local agencies to improve water supply and demand management Urban water management planning requirements, water shortage contingency plans Urban & agricultural conservation planning requirements Statutory framework for facilitating water transfers, water recycling

6 Drought Management Challenges Specific to California Water conveyance across the Sacramento – San Joaquin River Delta Ability to monitor statewide groundwater conditions and impacts of pumping (land subsidence) (because groundwater not regulated at state level)

7 Broadly Shared Drought Management Challenges – Small Water Systems Isolated rural communities Systems on fractured rock groundwater Small groundwater basins w/ minimal recharge/storage capacities Impacted soonest and to greatest extent by droughts, typically operate with little margin for error Experience actual public health & safety impacts -- lack of water for human consumption, sanitation, fire protection Lack SDWAs technical, managerial, financial capacity

8 Broadly Shared Drought Management Challenges – Drought Prediction NWS operational weather forecasts – out to about 10 days, good skill NOAA CPC outlooks for precipitation (30 days – 1 year), not skillful/useful for resource management Improved ISI forecasting would be hugely useful for drought management (longer lead time for reservoir ops, planning water transfers, budgeting conservation programs, etc)!

9 What Can Federal Research Programs Do To Help Improve Drought Management? Improve ISI forecasting!!!! – Advance research on MJO and ARs; ARs play big role in Californias water year type – Improve understanding & predictability of decadal-scale natural variability (high priority for Colorado River Basin) – Expand weather/climate monitoring to support week 3/week 4 WX forecasts NASA – timely provide satellite-based InSAR observations (e.g., DESDynI mission) that allow monitoring of land subsidence due to groundwater extraction


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