New study reveals severe under-monitoring of California's rivers and streams.
California relies heavily on rivers and streams for water supply, flood control, biodiversity conservation, and hydropower.
Only 8% of California's rivers and streams are monitored by stream gauges, devices that measure water flow.
Lack of monitoring hinders efficient water resource management and understanding of climate change effects.
Lead author Lucy Andrews emphasizes the need for comprehensive water information as climate change progresses.
Study finds only 9% of California's large dams have stream gauges, affecting water supply and flood control management.
California's freshwater species are highly imperiled; more monitoring is needed to protect these vulnerable species.
With proper investment, better streamflow monitoring networks can be designed, aiding in sustainable water management.