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California Water Science Center

The California Water Science Center has adjusted activities in response to the global COVID-19 pandemic. We will carry on the work of the USGS, while also maintaining the health and safety of our employees and community. Based on direction from the White House, the CDC, and state and local authorities, we continue to operate in a hybrid mode.

For assistance, please call: 916-278-3000.

News

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USGS Scientists Gather Data to Better Understand Nutrient Loads Entering the Sacramento–San Joaquin Delta

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Research by California Water Science Center Scientists Focuses on Hydrodynamics in the Upper Sacramento River Deep Water Ship Channel

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USGS Scientists Study Habitat Features in the San Francisco Estuary to Better Inform Conservation Efforts for Aquatic Species

Publications

Geology and hydrogeology of the Yucaipa groundwater subbasin, San Bernardino and Riverside Counties, California

The Yucaipa groundwater subbasin (referred to in this report as the Yucaipa subbasin) is located about 75 miles (mi) east of of Los Angeles and about 12 mi southeast of the City of San Bernardino. In the Yucaipa subbasin, as in much of southern California, limited annual rainfall and large water demands can strain existing water supplies; therefore, understanding local surface water and groundwate

Use case development for earth monitoring, analysis, and prediction (EarthMAP)—A road map for future integrated predictive science at the U.S. Geological Survey

Executive SummaryThe U.S. Geological Survey (USGS) 21st-century science strategy 2020–30 promotes a bureau-wide strategy to develop and deliver an integrated, predictive science capability that works at the scales and timelines needed to inform societally relevant resource management and protection and public safety and environmental health decisions (U.S. Geological Survey, 2021). This is the ove

Climate and land change impacts on future managed wetland habitat: A case study from California’s Central Valley

ConceptCalifornia’s Central Valley provides critical habitat for migratory waterbirds, yet only 10% of naturally occurring wetlands remain. Competition for limited water supplies and climate change will impact the long-term viability of these intensively managed habitats.ObjectivesForecast the distribution, abundance, and connectivity of surface water and managed wetland habitats, using 5 spatiall

Science

New Technologies for Mapping Surface Soil Moisture Over Wildfire-Prone Landscapes

A partnership between the USGS, Pepperwood Preserve, and Black Swift LLC aims to map soil and fuel moisture over wildfire-prone landscapes.
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New Technologies for Mapping Surface Soil Moisture Over Wildfire-Prone Landscapes

A partnership between the USGS, Pepperwood Preserve, and Black Swift LLC aims to map soil and fuel moisture over wildfire-prone landscapes.
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California Drought

The USGS closely monitors the effects of drought through data collection and research. USGS science supports water managers in preparing for possible future drought by providing information that takes into account long-term hydrologic, climatic, and environmental changes. These studies support successful planning and science-based decision-making by water managers who must address complex issues...
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California Drought

The USGS closely monitors the effects of drought through data collection and research. USGS science supports water managers in preparing for possible future drought by providing information that takes into account long-term hydrologic, climatic, and environmental changes. These studies support successful planning and science-based decision-making by water managers who must address complex issues...
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The USGS Monitoring Network and the Continuous Collection of Water Quality Data in the Sacramento-San Joaquin Delta

Water quality in Northern California’s Sacramento-San Joaquin Delta (Delta) is essential to clean drinking water, agricultural activities, and the health of the aquatic food web. Management of this important water resource requires the strategic collection of relevant and timely data. A primary component of this data collection is measuring and monitoring water quality.
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The USGS Monitoring Network and the Continuous Collection of Water Quality Data in the Sacramento-San Joaquin Delta

Water quality in Northern California’s Sacramento-San Joaquin Delta (Delta) is essential to clean drinking water, agricultural activities, and the health of the aquatic food web. Management of this important water resource requires the strategic collection of relevant and timely data. A primary component of this data collection is measuring and monitoring water quality.
Learn More