Images

USGS sets out to measure streamflow on the Mississippi River at Baton Rouge, sailing past the USS Kidd, a World War II destroyer.

Hydrologic technician Sylas Daughtrey works at a gagehouse on Columbia River at Stevenson, Washington

A panorama of a flooded stand of cypress trees in the Atchafalaya Basin.

USGS scientist Tammy Caudle demonstrates the acoustic dopplar current profiler onboard that will be used to measure streamflow on the Mississippi River.

Image shows a night-time view of the Natchez-Vidalia Bridge at Natchez, Mississippi.

Flooded land within the Bonnet Carré Spillway. Normally, this land is dry, but when the U.S. Army Corps of Engineers decides to release Mississippi River water from the Bonnet Carré Spillway, this land will be submerged.

Mississippi River water flows through the Bonnet Carré Spillway into the channel, where it will flow to Lake Pontchartrain.

USGS Gage 10032000 Smiths Fork near Border, Wyoming. USGS employee collects a measurement.   

USGS stream gage 1003200 SMITHS FORK NEAR BORDER, WY . 

The USGS Streamgage at Baton Rouge, Louisiana, during the 2015/2016 Mississippi River Valley Flooding.

Sections of Fashion Valley Road, San Diego, were closed by flooding of the San Diego River. Closed roads were a common scene in San Diego and throughout California during the El Niño-related storms, Jan 6 - 7, 2016. Hydrographers from the Poway Field Office closely monitored high-flow conditions throughout the storms.

Jon Newby and Travis Kordiak, USGS Hydrographers from the California Water Science Center Redlands Field Office, take high-water measurements at USGS streamgaging site 11059300. The site is on the Santa Ana River in San Bernardino, California, and is one of more than 500 streamgage locations in California.

USGS hydrologic technician Deena Green collects streamflow data at streamgage station 12413875, St. Joe River at Red Ives Ranger Station, Idaho

USGS hydrologist Jason Ramage collects a groundwater-level measurement using a steel tape in Freeport, Texas. 

A new interactive web application illustrates how groundwater, sediment compaction and land-elevation change are related in the Houston-Galveston region in Texas. 

USGS hydrologic technician Jayson Blom collects a groundwater-level measurement from an aquifer monitoring well at the Idaho National Laboratory.

Experimental laboratory setup to study uranium in aquatic organisms. Bottles contain artificial freshwater amended with dissolved organic matter and a range of uranium concentrations.

Experimental laboratory setup to study uranium in aquatic organisms. Bottles contain artificial freshwater amended with dissolved organic matter and a range of uranium concentrations.

Trask River stage, discharge, and water-quality data are collected and used together to help monitor the current health of the river. Instream equipment is stored in protective housing to protect it from the elements. Data from the river are sent to equipment in the gage house, where it is stored then transmitted to USGS servers.

USGS crews had two research vessels out measuring streamflow on the Mississippi River at St. Louis on New Years Eve, 2015. 

USGS scientist Chris Rowden drives a research vessel measuring streamflow alongside another field crew on the Mississippi River at St. Louis.

USGS crews had two research vessels out measuring streamflow on the Mississippi River at St. Louis on New Years Eve, 2015. USGS scientists Eric Looper and Jason Carron are one of many USGS field crews out in the floodwaters over the holiday.