Images

Water Resources Monitoring Site at Castle Creek

Field visit for data collection at Paul Spring Branch, Fairfax County, Virginia

Flood waters of the Missouri River and its tributaries cause road closures.

Woody debris is picked up and carried downstream by the rising waters of the Missouri River in Jefferson City, Missouri.

This ledge outcrop serves as the control at the USGS station on the Mousam River near West Kennebunk, Maine.

A USGS hydrologist and hydrologic technician install a microsampler in an urban creek in Milwaukee, Wisconsin. The microsampler allows collection of a sample "sip" every 6 hours; the sips are composited into a daily sample. Collection of daily samples revealed the presence of more pesticides and higher concentrations than manual samples collected weekly.

Collection of a suspended-sediment sample by hydrologic technicians at U.S. Geological Survey station 08185000 Cibolo Creek at Selma, Texas, on May 25, 2013.

Johnson County water intake weir on the Kansas River.

Cold-water adapted macroinvertbrates like these are good indicators for the health of an ecosystem.

In 2013, installation of macroinvertebrate sampling devices at seven sites on the Silver Creek Preserve. The sampling devices provide artificial substrate that aquatic insects such as mayflies, caddisflies, and stoneflies can colonize.

Hester Dendy™ samplers like this one provide artificial substrate that aquatic insects can colonize.

Collection and comparison of pre- and post-restoration samples to assess how well the insects adapt to restoration efforts.

USGS, Nature Conservancy, Idaho Fish and Game, and other volunteers collect fish on the Silver Creek Preserve near Picabo, Idaho.

Before The Nature Conservancy established the Silver Creek Preserve, the watershed had been degraded by years of livestock grazing and overfishing. Preserve managers have been concerned about sedimentation, increasing stream temperatures, and invasive species.

USGS hydrologist Dan Thomas places an acoustic Doppler current profiler (ADCP) into Fargo, N.D., floodwaters to measure streamflow on the Red River.

USGS hydrologist Dan Thomas speaks with media about USGS flood response efforts in Fargo, N.D.

A high water marker is submerged by the rising Red River during flooding in Fargo, N.D.

USGS hydrologists measuring streamflow on the Red River during spring flooding in Fargo.

Red River floodwater in downtown Fargo, N.D., overcame a public trail sign in April 2013.

The USGS Red River of the North at Fargo streamgage in Fargo, N.D., takes automatic water level measurements every 15 minutes.

A team of USGS hydrologists and technicians prepares to take an acoustic Doppler current profiler (ADCP) out on the Red River in downtown Fargo, N.D., to measure streamflow during the 2013 flood.