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California Water Science Center Images
Annual time series of precipitation and average air temperature for three future climate models for Indian Wells Valley, California as simulated by the Basin Characterization Model. Three future climate projections were selected from among 20 models used for California’s Fourth Climate Change Assessment for application to Indian Wells Valley.
Annual time series of precipitation and average air temperature for three future climate models for Indian Wells Valley, California as simulated by the Basin Characterization Model. Three future climate projections were selected from among 20 models used for California’s Fourth Climate Change Assessment for application to Indian Wells Valley.
water filtration plant in contra costa county, california
water filtration plant in contra costa county, california
View of Mt. Diablo from Twitchell Island in California's Sacramento-San Joaquin Delta
View of Mt. Diablo from Twitchell Island in California's Sacramento-San Joaquin Delta
Joshua trees dot the desert landscape on Edwards Air Force Base in Antelope Valley, CA.
Joshua trees dot the desert landscape on Edwards Air Force Base in Antelope Valley, CA.
Tableau visualization - Bay-Delta Regional Monitoring Program phytoplankton map showing levels of chlorophyll-a (µg/L) (FP) from May 2018.
Tableau visualization - Bay-Delta Regional Monitoring Program phytoplankton map showing levels of chlorophyll-a (µg/L) (FP) from May 2018.
The Mojave Shallow Groundwater Study focused on two areas — the floodplain aquifer and the regional aquifer surrounding it. Both areas are tapped by private domestic wells with depths ranging from about 90—600 feet deep. A total of 59 domestic and monitoring wells were sampled from January through May 2018 with well depths ranging from about 50-250 feet deep.
The Mojave Shallow Groundwater Study focused on two areas — the floodplain aquifer and the regional aquifer surrounding it. Both areas are tapped by private domestic wells with depths ranging from about 90—600 feet deep. A total of 59 domestic and monitoring wells were sampled from January through May 2018 with well depths ranging from about 50-250 feet deep.
This photo of Lake Shasta in Northern California shows low water levels during recent drought.
This photo of Lake Shasta in Northern California shows low water levels during recent drought.
Photo of Nick Framsted, a Physical Scientist at the California Water Science Center.
Photo of Nick Framsted, a Physical Scientist at the California Water Science Center.
USGS technicians preparing for a streamflow measurement by lowering an acoustic Doppler current profiler from a cable way on the American River near Fair Oaks, California.
USGS technicians preparing for a streamflow measurement by lowering an acoustic Doppler current profiler from a cable way on the American River near Fair Oaks, California.
USGS technicians prepare to board a boat to go out to the center of the channel in the San Joaquin River below Friant Dam to get an accurate measurement of water flow during releases from the Dam for flood control.
USGS technicians prepare to board a boat to go out to the center of the channel in the San Joaquin River below Friant Dam to get an accurate measurement of water flow during releases from the Dam for flood control.
Hypothetical model grid showing A, types of cascading hydrologic response units and B, land-surface altitudes and cascading flow directions.
Hypothetical model grid showing A, types of cascading hydrologic response units and B, land-surface altitudes and cascading flow directions.
USGS hydrographer measuring streamflow using a handheld Acoustic Doppler Velocimeter in fast moving floodwater Cajon Creek near Keenbrook, California.
USGS hydrographer measuring streamflow using a handheld Acoustic Doppler Velocimeter in fast moving floodwater Cajon Creek near Keenbrook, California.
USGS technician measuring streamflow in the Sisquoc River near Garey, California, upstream of the Santa Maria Mesa Road Bridge.
USGS technician measuring streamflow in the Sisquoc River near Garey, California, upstream of the Santa Maria Mesa Road Bridge.
USGS Streamgaging equipment and cableway on the Pit River near Canby, California operates year round.
USGS Streamgaging equipment and cableway on the Pit River near Canby, California operates year round.
Turbid waters in the Little Holland Tract area of the Sacramento-San Joaquin Bay Delta, California. Turbidity affects light penetration and ecological productivity, recreational values, and habitat quality, and causes lakes to fill in faster.
Turbid waters in the Little Holland Tract area of the Sacramento-San Joaquin Bay Delta, California. Turbidity affects light penetration and ecological productivity, recreational values, and habitat quality, and causes lakes to fill in faster.
A USGS hydrologic technician takes streamflow measurements during flooding of the Sisquoc River, a tributary of the Santa Maria River, near the town of Garey in Santa Barbara County.
A USGS hydrologic technician takes streamflow measurements during flooding of the Sisquoc River, a tributary of the Santa Maria River, near the town of Garey in Santa Barbara County.
National Geodetic Survey vertical control bench mark H1235 RESET in Merced County, California. H 1235 RESET is in the median of State Highway 15. This is one of several bench mark locations used to help measure the largest recent subsidence in the area using repeat surveys.
National Geodetic Survey vertical control bench mark H1235 RESET in Merced County, California. H 1235 RESET is in the median of State Highway 15. This is one of several bench mark locations used to help measure the largest recent subsidence in the area using repeat surveys.
National Geodetic Survey vertical control bench mark W990 CADWR in Merced County, California. W 990 CADWR is on the Mariposa Bypass Bridge on Washington Rd. This is one of several bench mark locations used to help measure the largest recent subsidence in the area using repeat surveys.
National Geodetic Survey vertical control bench mark W990 CADWR in Merced County, California. W 990 CADWR is on the Mariposa Bypass Bridge on Washington Rd. This is one of several bench mark locations used to help measure the largest recent subsidence in the area using repeat surveys.
Invasive water primrose (Ludwigia species) and water hyacinth (Eichhornia crassipes) line the marsh edge in Mandeville Cut near the Port of Stockton, California’s third largest port. Invasive aquatic vegetation – dominated by Brazilian waterweed, water hyacinth, and water primrose – has increased exponentially in recent years, cloggi
Invasive water primrose (Ludwigia species) and water hyacinth (Eichhornia crassipes) line the marsh edge in Mandeville Cut near the Port of Stockton, California’s third largest port. Invasive aquatic vegetation – dominated by Brazilian waterweed, water hyacinth, and water primrose – has increased exponentially in recent years, cloggi
Invasive aquatic vegetation chokes Lindsey Slough, creating a potentially challenging environment for fish and other aquatic life. The slough is the site of a 2014 restoration project in the Sacramento-San Joaquin Delta to improve freshwater tidal marsh and spawning habitat for Delta smelt and other fish.
Invasive aquatic vegetation chokes Lindsey Slough, creating a potentially challenging environment for fish and other aquatic life. The slough is the site of a 2014 restoration project in the Sacramento-San Joaquin Delta to improve freshwater tidal marsh and spawning habitat for Delta smelt and other fish.
Landscape ecologist Shruti Khanna uses a threshing rake to collect Brazilian waterweed (Egeria densa) in the Delta. The USGS is conducting research to measure the impact of invasive aquatic vegetation on sediment transport, turbidity, and marsh accretion rates in Delta.
Landscape ecologist Shruti Khanna uses a threshing rake to collect Brazilian waterweed (Egeria densa) in the Delta. The USGS is conducting research to measure the impact of invasive aquatic vegetation on sediment transport, turbidity, and marsh accretion rates in Delta.