Images

Snow falls on USGS Hydrologist, Joe Nawikas, as he collects groundwater samples in Mammoth, California.

Research Hydrologist Paul Hsieh collects seismic data during a groundwater study at Pinnacles National Park in California. The red seismometer on the ground measures ambient seismic noise, which includes microtremors induced by wind, ocean waves, and human activity.

USGS scientists collect sediment cores to examine the amount and distribution of metals within Lake Powell.  

Kelvey Merill ADCP measurement at Perdanales River near Fredricksburg - Lynne Fahlquist USGS. 

Drill rig to collect sediment samples on Lake Powell.

USGS scientists work with heavy machinery to collect sediment through the full thickness of the San Juan and Colorado River deltas. 

Core processing hut provides a sheltered environment for scientists to process the cores for shipment to the National Lacustrine Core Facility

USGS scientists collect sediment cores to examine the amount and distribution of metals within Lake Powell.  

In this photo, a small unoccupied aicraft (sUAS) or drone is being prepared to collect thermal infrared data to assess groundwater discharge into Las Vegas Wash, in Clark County, Nevada. The umbrella provides shade to keep the equipment from getting too hot.

Graph of budget components from a MT3D-USGS simulation versus time generated by GW_Chart based on results from a hypothetical model.

NWQL

USGS Research Oceanographer Lauren Toth and Oceanographer Anastasios Stathakopoulos study a coral-reef core in the USGS’s Core Archive in St. Petersburg, Florida. Photo: Dominique Gallery, USGS.

Yellowstone River Valley, northeast of Billings, from 37,002 feet, Delta Flight 610, Seattle to Atlanta, Yellowstone County, Montana . Photograph by Alan Cressler, USGS

Bussell, Ashley M working on site, with Blue USGS Shirt.

Each one these blue dots represents a site where a storm-tide sensor bracket has been installed for the Gulf of Mexico pre-defined network. There are currently 85 brackets in Florida, 6 in Alabama, 3 in Mississippi, 18 in Louisiana and 26 in Texas, for a total of 138 bracketed sites. (Not all brackets will be used in all storms.)

The USGS creates a Flood Event Viewer for major flooding incidents, as a one-stop, interactive information source. On that website, viewers can click on each red dot (storm-tide sensor) to see details about it.

USGS scientist Scott Grzyb reviews high-water data collected by boat on the Llano River in Llano, Texas in response to a flash flood on October 8, 2018.

USGS scientists Scrott Grzyb and Michael Scheider pause at sunset at the end of a long day collecting high-water measurements along the Llano River on October 8, 2018.

This flood event viewer map, dated Oct. 3, 2018, shows the extent and type of information collected by USGS hydrologists in North and South Carolina in the wake of historic flooding brought on by Hurricane Florence.

Flooding at Vekol Wash today, south of Phoenix, following remnant rains from Hurricane Rosa. 

Chester County, Pennsylvania Observation Well CH 10. The well is 33.5 feet deep, and lies in the local Cockeysville Marble Aquifer, part of the larger Piedmont and Blue Ridge carbonate-rock National Aquifer. The well is relatively new to the Groundwater Quality Monitoring Network (GWMN) consisting of 27 wells distributed over 26 counties in Pennsylvania.