Unified Interior Regions

South Dakota

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Collecting Water Data Using a Pressure Gage, Armenia
March 2, 2016

Pressure gage water data collection

Field training on how to measure water level using a pressure gage for a flowing well in Sis, Armenia.

The growth of aquaculture to raise trout, sturgeon and other cold-water fish has increased withdrawals of critical groundwater in the Ararat Basin of Armenia. The USGS is working with partners, including USAID, to develop scientific tools for water-resource

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Canyon Lake
February 29, 2016

Canyon Lake February 2017

Waterfowl population on Canyon Lake in Rapid City, SD, during February 2017.

Ice Jam at White River near Interior, SD (06446500)
February 12, 2016

Ice Jam at White River near Interior, SD (06446500)

Ice jam at White River near Interior, SD (USGS streamgage 06446500). More information on this site is available at https://waterdata.usgs.gov/sd/nwis/inventory/?site_no=06446500&agency_cd=USGS&. 

Image: Ice Jam on White River near Interior, SD
February 11, 2016

Ice Jam on White River near Interior, SD

Ice jam at the White River near Interior, SD, USGS streamgage 06446500, on February 12, 2016. An ice streamflow measurement was made a few days prior to the ice breakup on Februrary 9, 2016, and was 235 cubic feet per second.

Graphic of Williston Basin Oil and Gas Wells, North Dakota, South Dakota and Eastern Montana, 2016
January 1, 2016

Graphic of Williston Basin Oil and Gas Wells

This is a graphic showing the boundary of the Williston Basin Province and Oil and Gas Wells, North Dakota, South Dakota and Eastern Montana, 2016

Resolve 1
December 31, 2015

RESOLVE Helicopter's Airborne Electromagnetic “Bird"

Left to right: Greg Delzer, David Smith and Mark Anderson (South Dakota Water Science Center and Denver Crustal Geophysics Group) standing with the RESOLVE helicopter's airborne electromagnetic “bird.” The bird is suspended from a helicopter as it transmits and receives electromagnetic signals to the ground, which are used to interpret characteristics of the aquifer. More

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Resolve 8
December 31, 2015

RESOLVE Bird Used for Collection of Airborne Electromagnetic Data

A low-flying helicopter will carry this large cylindrical sensor, called a bird, to measure physical properties of the Big Sioux aquifer below the Earth's surface. More information on the airborne electromagnetic method is available at https://doi.org/10.3133/fs20163075.

Resolve 10
December 31, 2015

RESOLVE bird flying to collect airborne electromagnetic data

Power lines present challenges in data collection and analyses of airborne electromagnetic data near Sioux Falls, SD. The bird is suspended from a helicopter as it transmits and receives electromagnetic signals to the ground, which are used to interpret characteristics of the aquifer. More information on the airborne electromagnetic method is available at 

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Resolve 11
December 31, 2015

RESOLVE Bird Flying over Corn Field Collecting Airborne EM Data

Airborne electromagnetic data collection a corn field near Sioux Falls, SD. The bird is suspended from a helicopter as it transmits and receives electromagnetic signals to the ground, which are used to interpret characteristics of the aquifer. More information on the airborne electromagnetic method is available at https://doi.

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Resolve 15
December 31, 2015

Airborne Electromagnetic Data Collection Over an Agricultural Field

Airborne electromagnetic data collection over an agricultural field near Sioux Falls, SD. The bird is suspended from a helicopter as it transmits and receives electromagnetic signals to the ground, which are used to interpret characteristics of the aquifer. More information on the airborne electromagnetic method is available at

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December 11, 2015

What's the Big Idea? — Charting Change from the Skies

Tom Loveland, research scientist with the USGS Earth Resources Observation and Science Center, explains how he uses data — both past and present — to help scientists, natural resource managers, and the public better understand how the face of the planet is shifting and what that change means.

Resolve low-level flight system
October 31, 2015

Resolve low-level flight system

In this image, a helicopter towing a large, cylindrical sensor makes low-level flights as part of a USGS remote geophysical survey, which collects data about underground geology. The scientific system, called Resolve, is operated by CGG Canada Services, Ltd.