Images

A flying insect perched on lakeshore grasses, Albemarle County, Virginia.

Sediment acoustics - hydrologists

This photo was taken during a routine site visit to measure streamflow on the Rio Chama in New Mexico. 

Many eyes watch the amount of water running past the important Otowi streamflow gage. On May 23rd, Tyson Hatch from the New Mexico Water Science Center (NMWSC) presented an overview of the streamgaging activities of the Otowi Gage to participants of the Rio Chama Basin and San Juan-Chama Project Tour.

Stephanie Kula is collecting water-quality sample by wading in the Maumee River near Defiance, Ohio, for the Western Lake Erie Basin project. Nutrients (nitrogen and phosphorus) and sediment from urban and agricultural practices are a concern in the Western Lake Erie Basin watersheds in northwester

As part of the Regional Stream Quality Assessments (RSQA), hydrologists, ecologists, and technicians did ecological surveys of aquatic biota and stream habitat.  Here, an ecologist uses a net to collect a sample of aquatic invertebrates for ennumeration and identification.

Graffiti adorns an outfall pipe discharging stormwater into Sausal Creek. Sausal Creek was one of the many urban creeks sampled by the Regional Stream Quality Assessment (RSQA).

As part of the Regional Stream Quality Assessments (RSQA), hydrologists, ecologists, and technicians did ecological surveys of aquatic biota and stream habitat.  Here, two hydrologic technicians record characteristics of stream habitat.

Biofilms take up pesticides in streams. Here, a hydrologic technician collects a sample of biofilm that has colonized an unglazed ceramic tile over 60-90 days. Learn more about biofilms as integrative samplers of pesticides here.

Biofilms take up pesticides in streams. Here, a hydrologic technician collects a sample of biofilm that has colonized an unglazed ceramic tile over 60-90 days. Learn more about biofilms as integrative samplers of pesticides here.

Biofilms take up pesticides in streams. Here, a hydrologic technician hold ups an unglazed ceramic tile that has been colonized by biofilm over 60-90 days. Learn more about biofilms as integrative samplers of pesticides here.

As part of the Regional Stream Quality Assessments (RSQA), hydrologists, ecologists, and technicians did ecological surveys of aquatic biota and stream habitat.  Here, a hydrologist carefully folds a filter used to collect a sample for analysis of eDNA.

Sausal Creek in central Oakland, California, is an urban creek that has been extensively modified for flood control. The USGS Regional Stream Quality Assessment assessed the water quality and ecological integrity of small streams like Sausal Creek in five major regions of the country.

Flowers and graffiti turn urban Sausal Creek into a bizarre wonderland. Water-quality and ecological surveys were done at the creek as part of the USGS Regional Stream Quality Assessment (RSQA) in the summer of 2016.

As part of the Regional Stream Quality Assessments (RSQA), hydrologists, ecologists, and technicians did ecological surveys of aquatic biota and stream habitat.  Here, a hydrologic technician records characteristics of the habitat of a highly urbanized stream.

Sausal Creek in central Oakland, California, is an urban creek that has been extensively modified for flood control. The USGS Regional Stream Quality Assessment assessed the water quality and ecological integrity of small streams like Sausal Creek in five major regions of the country.

A hydrotech prepares to collect a water-quality sample at urban Sausal Creek, with its distinctive graffiti. Water-quality and ecological surveys were done at the creek as part of the USGS Regional Stream Quality Assessment (RSQA) in the summer of 2016.

As part of the Regional Stream Quality Assessments (RSQA), hydrologists, ecologists, and technicians did ecological surveys of aquatic biota and stream habitat.  Here, a geolomorphologist assesses stream banks.

A helicopter towing a large, cylindrical sensor will make low-level flights over parts of Cedar Rapids, Iowa, as part of a groundwater survey in May 2017.

Research Hydrologist Neil Terry (USGS) collects ground-penetrating radar (GPR) data. Using hydrogeophysical tools such as GPR enables scientists to collect images of the structure and conditions of the ice below them. (April 2017)

A helicopter towing a large, cylindrical sensor will make low-level flights over parts of Cedar Rapids, Iowa, as part of a groundwater survey in May 2017.