Data & Decision-Making

Recognizing that water decision making is limited by the quality, availability, and usability of decision-relevant data, this initiative seeks to guide the expansion and improvement of California’s water information systems to meet stakeholders’ needs. 


August 2018

Addressing Institutional Vulnerabilities in California’s Drought Water Allocation

California droughts are likely to become more frequent, longer, and more intense in the future, posing increasing challenges for water management, and raising the stakes for effective drought response.  Past droughts have stress tested California’s water management institutions, revealing vulnerabilities that could impair effective adaptation to climate change. The State Water Resources Control Board (Board) is a key water decision maker whose actions affect how scarce water resources are allocated among different human and environmental uses during droughts.  In a pair of reports published as part of California’s Fourth Climate Change Assessment, we examine how the Board has carried out its water rights responsibilities during past droughts and offer recommendations for improving the agency’s future drought response.


April 2018

Improving California’s Stream Flow Monitoring System

With California’s drought risk, flood risk, and demand for water all increasing, effective monitoring is more important than ever to water decision making. Stream gages monitor the most basic vital sign of California’s waterways—stream flow. Stream flow data support day-to-day decisions about how to manage water and operate water infrastructure—decisions that have important implications for flood control and the water supplies upon which residential, industrial, agricultural, and environmental water users depend.


January 2018

Data for Water Decision Making

A lack of data and information has limited our ability to understand, let alone better manage, all aspects of our water resources. This report supports California’s efforts to develop modern water data systems. It argues that simply providing more data is not enough, and that generating useful and useable information hinges on the development of data systems based on end users’ needs. The report describes lessons learned from a process of stakeholder engagement focused on defining and clarifying uses of water data, and how knowledge of these uses can inform the development of water data systems. 

Also see our Op-Ed in The Sacramento Bee.