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Map showing principal aquifers (PAs) and wells that were sampled as part of a Nationwide assessment of the quality of groundwater used for public supply.
Map showing principal aquifers (PAs) and wells that were sampled as part of a Nationwide assessment of the quality of groundwater used for public supply.
Remotely sensed chlorophyll estimates during the 2022 HAB event (mg m-3). Data are from the ESA Sentinel-3 satellite and are processed using a locally tuned algorithm for San Francisco Bay.
Remotely sensed chlorophyll estimates during the 2022 HAB event (mg m-3). Data are from the ESA Sentinel-3 satellite and are processed using a locally tuned algorithm for San Francisco Bay.
Webcam image and hydrograph from Truckee River webcam. Truckee River at Boca Bridge near Truckee, CA.
Webcam image and hydrograph from Truckee River webcam. Truckee River at Boca Bridge near Truckee, CA.
USGS scientist Michelle Sneed explaining the extensometer to group from the 2022 Water Education Foundation Central Valley Tour.
USGS scientist Michelle Sneed explaining the extensometer to group from the 2022 Water Education Foundation Central Valley Tour.
Kamahu’ehu’e Pond is covered in non-native pickleweed on the southeast coast of Moloka’i, Hawai’i.
Kamahu’ehu’e Pond is covered in non-native pickleweed on the southeast coast of Moloka’i, Hawai’i.
Bees gathering pollen on tree blossoms near an agricultural location in Northern California.
Bees gathering pollen on tree blossoms near an agricultural location in Northern California.
Rock Drought Barrier on West False River, near Frank's Tract in California's Sacramento-San Joaquin Delta.
Rock Drought Barrier on West False River, near Frank's Tract in California's Sacramento-San Joaquin Delta.
Bees gathering pollen on a wildflower near an agricultural location in Northern California.
Bees gathering pollen on a wildflower near an agricultural location in Northern California.
Info graphic showing the various matrices sampled for this project and how bees might be exposed to pesticides.
Info graphic showing the various matrices sampled for this project and how bees might be exposed to pesticides.
Photo showing a harmful algal bloom (also known as “blue algae”) on the surface of Clear Lake. Photo by Nick Framsted, UC Davis.
Photo showing a harmful algal bloom (also known as “blue algae”) on the surface of Clear Lake. Photo by Nick Framsted, UC Davis.
Methods of addressing problems of subsidence and increasing carbon storage at White Slough include: 1] reuse of sediment to fill subsided areas and restore elevations that support marsh vegetation (left), and 2] breaching historic dikes in order to restore tidal hydrology (right).
Methods of addressing problems of subsidence and increasing carbon storage at White Slough include: 1] reuse of sediment to fill subsided areas and restore elevations that support marsh vegetation (left), and 2] breaching historic dikes in order to restore tidal hydrology (right).
Keswick Reservoir, on the Sacramento River near Redding, receives both water and contaminants via outflow from an upstream dam. Information is needed on dilution rates and how these vary with hydrological/meteorological forcing and reservoir management.
Keswick Reservoir, on the Sacramento River near Redding, receives both water and contaminants via outflow from an upstream dam. Information is needed on dilution rates and how these vary with hydrological/meteorological forcing and reservoir management.
Beneficial re-use of sediment to fill subsided areas and restore elevations that support marsh vegetation at White Slough Unit.
Beneficial re-use of sediment to fill subsided areas and restore elevations that support marsh vegetation at White Slough Unit.
Backhoe being used to breach historic dike in order to restore tidal hydrology at White Slough Unit.
Backhoe being used to breach historic dike in order to restore tidal hydrology at White Slough Unit.
Low water drought conditions at Folsom Lake, California, on June 23, 2021. Photo by Florence Low / California Department of Water Resources.
Low water drought conditions at Folsom Lake, California, on June 23, 2021. Photo by Florence Low / California Department of Water Resources.
Distressed vineyard in Coachella Valley, Calif. Picture taken by Kelly M. Grow of the California Department of Water Resources.
Distressed vineyard in Coachella Valley, Calif. Picture taken by Kelly M. Grow of the California Department of Water Resources.
Lake Oroville showing extremely low water under the Enterprise Bridge during 2021 drought. Photo by Kelly M. Grow of the California Department of Water Resources.
Lake Oroville showing extremely low water under the Enterprise Bridge during 2021 drought. Photo by Kelly M. Grow of the California Department of Water Resources.
Dying trees at Griffith Park in Los Angeles, California. Photo by Florence Low / California Department of Water Resources.
Dying trees at Griffith Park in Los Angeles, California. Photo by Florence Low / California Department of Water Resources.
Pepperwood-USGS-Black Swift Team with Super Swift UAS prior to launch, Pepperwood Preserve, Sonoma County, California. Left-to-right: Jack Elston, Michelle Stern, Maciej Stachura, Ryan Ferrell.
Pepperwood-USGS-Black Swift Team with Super Swift UAS prior to launch, Pepperwood Preserve, Sonoma County, California. Left-to-right: Jack Elston, Michelle Stern, Maciej Stachura, Ryan Ferrell.
Ryan Ferrell (Pepperwood Preserve) collecting field soil moisture data using a HydroSenseII Time Domain Reflectometry (TDR) probe and soil cores to validate remotely sensed soil moisture.
Ryan Ferrell (Pepperwood Preserve) collecting field soil moisture data using a HydroSenseII Time Domain Reflectometry (TDR) probe and soil cores to validate remotely sensed soil moisture.
Working with the USGS and Pepperwood Preserve, Black Swift Technologies LLC deployed radiometers on a UAS, the Super Swift (S2).
Working with the USGS and Pepperwood Preserve, Black Swift Technologies LLC deployed radiometers on a UAS, the Super Swift (S2).