Images

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.

Low water drought conditions at Folsom Lake, California, on June 23, 2021. 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.

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).

Real-time monitoring station on the Pepperwood Preserve, Sonoma County, CA.  This station measures precipitation, air temperature, humidity, wind speed and direction, soil moisture, electric conductivity, and soil temperature.

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.

Complex aquifer system simulated in the Los Angeles Coastal Plain, California.

The Mojave River is the largest of the streams and rivers that flow through southwestern San Bernardino County, CA. It extends more than 100 miles east from its source in the San Bernardino Mountains to the end east of Afton Canyon. This 3D animation takes the viewer on a tour of the entire length of the river.

The Clear Lake Hitch was formerly highly abundant and a staple food for the Pomo tribes of the Clear Lake region. The original abundance of this fish species is unknown but is believed to have declined 100-fold.

Scientists aboard R/V Aiken conduct water-quality mapping in support of wastewater-derived nutrients project

USGS scientist, Katy O'Donnell, monitoring instruments onboard a high-speed mapping boat. 

Hydrologic technicians deploying a flow sensor on a shoal in San Francisco Bay.

Scientists heading out to deploy sensors for sediment nutrient storage and release.

Delta wetland near Rio Vista, California.

A concrete-lined stretch of the Los Angeles River that runs near Sepulveda Dam.  USGS streamgage 11092450 can be seen in the lower left along the river wall. Restoration is planned for this stretch of the river that runs through the San Fernando Valley.

Irrigated land-use in the Adelaida Area of San Luis Obisbo County, CA for 1984, 1996, 2004, 2014, and 2016. Numbers indicate acres and percent of total acres.

Channel in Sacramento-San Joaquin Delta with lots of vegetation and clouds and blue sky.

Solar-powered LoRa cellular gateway installed at Pepperwood Preserve to support water and soil moisture sensor deployments in the Santa Rosa, California area

EnviSense data-logger/transmitter developed by Carnegie Mellon University actively deployed with stage sensor at USGS streamgage at Beale Air Force Base near Marysville, California.     

Trace 1310 GC with a TSQ 9000 triple quadrupole MS (Thermo Scientific)