Images

USGS Hydrologist Bill Eldridge answers questions following his presentation at the 2018
Western South Dakota Hydrology Conference.

Darren Clabo (SDSM&T) presents information about the 2017 Legion Lake Fire at the 2018
Western South Dakota Hydrology Conference.

USGS scientist Janet Carter talks about groundwater conditions in Armenia at the 2018
Western South Dakota Hydrology Conference.

USGS Dakota Water Science Center Director Joyce Williamson moderates the opening
session at the 2018 Western South Dakota Hydrology Conference.

Marshmallow-like formations were photographed on the Cannonball River at Regent, North Dakota (USGS streamgage 06350000) on April 3, 2018. Foam is produced naturally from organic material in the water in combination with turbulence resulting from water flowing over the weir.

USGS scientist Karen Ryberg was interviewed during the conference about drought
conditions in the Dakotas.

USGS Civil Engineer Brent Hanson measuring the streamflow of the Little Missouri River near Watford City, ND (streamgage 06337000). More information about this streamgage is available at https://waterdata.usgs.gov/nwis/uv/?site_no=06337000. 

Ice jam on the White River near White River, SD (USGS streamgage 06447450) on March 15, 2018. Ice jams occur when floating ice carried with a stream’s current accumulate at any obstruction to the stream flow. These ice jams can develop near river bends, mouths of tributaries, areas of decreased river slope, and upstream of obstructions like bridges.

USGS groundwater hydrologist, Bill Eldridge, is lowering a transducer into an observation well near Jewel Cave National Monument to monitor water-level changes in the Madison aquifer. The data collected will be used to update previously published groundwater-altitude maps to help better understand groundwater flow.

This photograph was taken at Little White River near White River, SD (USGS streamgage 06450500) when the streamflow was 138 cubic feet per second.

This photograph was taken at Little White River near White River, SD (USGS streamgage 06450500) when the streamflow was 138 cubic feet per second.

This photograph was taken at Little White River near Rosebud, SD (USGS streamgage 06449500) when the streamflow was 139 cubic feet per second.

This photograph was taken at Little White River near Rosebud, SD (USGS streamgage 06449500) when the streamflow was 139 cubic feet per second.

 During wintry conditions, streamflow is often measured under ice. This often means using an ice auger to cut holes through the ice, at increments across the full width of the stream.

USGS hydrologic technicians Kevin Baker (shown in the picture) and Jarvis Kaderlik found the Souris River near Westhope, ND (streamgage 05124000) to be at zero flow on January 4, 2018.

Hydrologic Technicians from USGS offices across North and South Dakota took part in training on how to make flow measurements under ice using acoustic Doppler technology. This technology increases measurement quality, while decreasing time, effort, and risk to the individuals making the measurements.

Hydrologic Technicians from USGS offices across North and South Dakota took part in training on how to make flow measurements under ice using acoustic Doppler technology. This technology increases measurement quality, while decreasing time, effort, and risk to the individuals making the measurements.

USGS Scientist, Greg Delzer, talking with the local press regarding the AEM flight plan and details on what USGS and others will be collecting and analyzing.

USGS team of scientists were on site before the survey to help answer questions and go over last minute flight and data collection details. (Photo includes individuals from USGS: Iowa/Illinois Water Science Center, Dakota Water Science Center, Denver Crustal Geophysics Group, Office of Communication, and Branch of Geophysics)

Helicopter pilot and crew discussing flight plan and data collection before lifting off.

Helicopter lifting off to start a data collection run.