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Filter Total Items: 83
USGS
Date Published: September 6, 2017

Statewide Flood-Frequency Analyses for Streamflow Gaging Stations in South Dakota

Project Period: 2002-2008
Cooperator: South Dakota Department of Transportation
Project Chief: Dan Driscoll

USGS
Date Published: September 6, 2017

Sensitivity of Ground Water to Contamination in Lawrence County, South Dakota

Sensitivity of Ground Water to Contamination in Lawrence County, South Dakota

Arikaree Formation
Date Published: September 6, 2017

Rosebud Sioux Tribe and U.S. Geological Survey Collaboration for Groundwater Flow Modeling of the Ogallala and Arikaree Aquifers

Project Period: 2006-2009
Cooperators: Rosebud Sioux Tribe
Project Chief: Andy Long

Resolve 1
Date Published: September 5, 2017
Status: Active

Geohydrologic Framework and Assessment of Aquifer Characteristics of the Big Sioux Aquifer and Groundwater Flow Model to Determine Sustainable Yield for the City of Sioux Falls

Project Period: 2015-18
Cooperators: City of Sioux Falls
Project Chief: Greg Delzer

Spring Creek
Date Published: September 5, 2017
Status: Active

Simulation of Groundwater Flow in the Madison and Minnelusa Aquifers, Black Hills Area

Project Period: 2011-2018
Cooperator: National Park Service, Black Hills National Forest, City of Rapid City, West Dakota Water Development District
Project Chief: Bill Eldridge

Contacts: Bill Eldridge
Figure 1
Date Published: September 5, 2017
Status: Active

Real-time, Continuous Nitrate Monitoring of the Big Sioux River near Sioux Falls, South Dakota

Project Period: ongoing
Cooperators: City of Sioux Falls and East Dakota Water Development District
Project Chief: Galen Hoogestraat

Mount Rushmore water sampling
Date Published: September 1, 2017

Study to Examine Water-Quality Concerns within Mount Rushmore National Memorial

Project Period: 2011-2016
Cooperators: Mount Rushmore National Memorial
Project Chief: Galen Hoogestraat

USGS
Date Published: September 1, 2017

High-Resolution Hydrographic Mapping in Lincoln and Minnehaha Counties

Project Period: December 1, 2014 to June 30, 2016
Cooperators: Cities of Harrisburg and Sioux Falls, Lincoln County, East Dakota Water Development District, South Dakota Department of Transportation, and the Mid-America GIS Consortium
Project Chief: Ryan Thompson and Dan Driscoll

Oil and Gas 4
Date Published: August 31, 2017
Status: Active

Estimating National Water Use Associated with Unconventional Oil and Gas Development

Project Period: 2016-ongoing
Cooperator: U.S. Geological Survey Water Availability and Use Science Program
Project Chiefs: Kathleen Rowland, Gregory Delzer, Joanna Thamke, and Janet Carter

Cedar Rapids
Date Published: August 29, 2017

Characterizing the Hydrogeological Framework for the Cedar River Alluvial Aquifer System near Cedar Rapids, Iowa, using Airborne Electromagnetic Surveys

Project Period: 2016-18
Cooperators: City of Cedar Rapids
Project Chiefs: Eddie Haj (Iowa/Illinois Water Science Center) and Joshua Valder (Dakota Water Science Center)

Contacts: Joshua Valder
Canyon Lake
Date Published: August 29, 2017

Water-Quality Monitoring of Canyon Lake

Project Period: May 2017 - September 2018
Cooperator: West Dakota Water Development District
Project Chief: Galen Hoogestraat

USGS
Date Published: August 29, 2017
Status: Completed

Implementing a Web-Based Streamflow Statistics Tool for South Dakota (StreamStats)

The objective of this study is to provide a Web-based interactive tool (StreamStats) for determining streamflow statistics for any stream location within South Dakota for which applicable streamflow regression equations have been published.

Contacts: Ryan F Thompson
Filter Total Items: 145
Hydrologic technician making an ice-affected stream discharge measurement.
January 19, 2017

Ice-affected stream discharge measurement.

Hydrologic Technician, James Albrecht, from the North Platte Field Office making a measurement of discharge under ice using a Flowtracker acoustic velocity meter on a top-setting wading rod.  The string going across the picture is a tagline, used for measuring distance across the channel so that he can note the location of the ice hole he is working in.  Typically, the

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Image shows a sample of augelite and quartz on a black background.
December 31, 2016

Augelite and Quartz

A sample of augelite and quartz. Augelite is an aluminum phosphate mineral, primarily prized for collecting rather than as a source for its industrial mineral components.

Sample provided by Carlin Green, USGS. Sample originated from Mundo Nuevo Mine, Peru, and is 3.7cm in size.

Image shows a sample of axinite against a black background
December 31, 2016

Axinite

This is a sample of axinite with iron, making it ferroaxinite. Axinite is primarily used as a collectors mineral.

Sample provided by Carlin Green, USGS. Sample originated from Puiva Mount, Russia, and is 3.0cm in size.

Image shows a sample of azurite and malachite against a black background
December 31, 2016

Azurite and Malachite

A sample of azurite, the blue mineral, and malachite, the green mineral. Both azurite and malachite are copper minerals that were once used as pigments but are now mostly valued as collectors minerals. They do serve as good indicators of copper deposits that can be developed. Read more information about copper here.

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Image shows a sample of clinozoisite against a black background
December 31, 2016

Clinozoisite

This sample is clinozoisite, a calcium aluminum silicate mineral. It is mostly prized as a collectors mineral rather than a source of its industrial mineral commodities.

Sample provided by Carlin Green, USGS. Sample originated from Hachupa, Pakistan, and is 6.0cm in size.

Image shows a sample of elbaite on a black background
December 31, 2016

Elbaite

Elbaite is one of the best-known members of the tourmaline mineral family, particularly for its high-quality gemstones. Read more about the tourmaline mineral family here

Sample provided by Carlin Green, USGS. Sample originated from Himalaya Mine, California, and is 4

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Image shows a sample of epidote and quartz against a black background
December 31, 2016

Epidote and Quartz

Epidote is a silicate mineral used mostly as a semiprecious gemstone.

Sample provided by Carlin Green, USGS. Sample originated from Prince of Wales Island, Alaska, and is 6.0cm in size.

Image shows a sample of pyrrhotite against a black background
December 31, 2016

Pyrrohtite

Pyrrhotite is an iron sulfide mineral related to iron pyrite, which is one of the minerals known as Fool's Gold. Pyrrhotite, although not one of the Fool's Gold minerals, is sometimes called magnetic pyrite as it is weakly magnetic. It is most valued as a collectors mineral.

Sample provided by Carlin Green, USGS. Sample originated from Eagle Mine, Michigan, and is 4

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Image shows a sample of torbernite against a black background
December 31, 2016

Torbernite

Torbernite is a copper phosphate mineral that contains uranium, making it somewhat radioactive. Although it can be used as a uranium ore, it's more valued as a collectors mineral. It can be used as a good indicator of uranium deposits, however.

Sample provided by Carlin Green, USGS. Sample originated from Musonoi Mine, Democratic Republic of the Congo, and is 5.0cm

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December 31, 2016

Historic USGS Streamgage on the Wabash River at Lafayette Indiana

This video will provide a brief history and purpose for one of the oldest streamgages in Indiana. The gage is at the Wabash River at Lafayette, Indiana. The site number is 03335500. This video was produced at the request of the West Lafayette Parks Department where this historic gage is located. A QR code is displayed on an interpretive plaque next to the gage which is

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December 31, 2016

An Introduction to MODIS Version 6 Data

This video focuses on the National Aeronautics and Space Administration’s (NASA) Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Version 6 land data distributed by NASA’s Land Processes Distributed Active Archive Center (LP DAAC). This video will cover how to learn more about MODIS Version 6 data using the LP DAAC website, the MODIS file naming

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Image shows a cubical sample of pyrite with a quartz crystal extending beneath it
December 31, 2016

Pyrite and Quartz

A sample of pyrite and quartz. Iron pyrite, also known as Fool's Gold due to its resemblance to gold, often occurs in quartz veins. Pyrite is an important source of sulfur dioxide, which is primarily used to create sulfuric acid, an important industrial acid. In fact, consumption of sulfuric acid has been regarded as one of the best indexes of a nation's industrial

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Filter Total Items: 96
USGS: Science for a changing world
September 26, 2016

Reporters: Do you want to accompany a USGS field crew as they measure flooding? Please contact Jason McVay at 319-430-6962.

Iowa
September 23, 2016

Reporters: Do you want to accompany a USGS field crew as they measure flooding? Please contact Jason McVay at 319-430-6962.

Crop of OK earthquake
September 3, 2016

A magnitude 5.8 earthquake struck in Oklahoma on September 3, 2016 at 12:02:44 UTC (7:02 am local time). 

Iowa
August 24, 2016

Reporters: Do you want to accompany a USGS field crew as they measure flooding? Please contact Jason McVay at 319-430-6962.

Filter Total Items: 109