Yellowstone Volcano Observatory Photogallery - Monitoring Photographs

A leveling survey in Fountain Paint Pot
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A volunteer and a US Geological Survey employee conduct a leveling survey north of Fountain Paint Pot. Photograph by David E. Wieprecht on September 1996.
A leveling survey in Hayden Valley
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Volunteers and a US Geological Survey employee conduct a leveling survey in Hayden Valley. Photograph by David E. Wieprecht on September 1988.
Tantalus Creek gauging site
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Photograph of the Tantalus Creek gauging site. More than 97 percent of the outflow from Norris Geyser Basin exits via Tantalus Creek. The discharge from Tantalus Creek is monitored by a weir located about 100 meters from the confluence of Tantalus Creek with the Gibbon River. Photograph by Irving Friedman.
Student lugging a seismometer
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A University of Utah- Swiss post doctoral fellow is lugging a seismometer barrel to a new seismograph station being installed near Old Faithful, Yellowstone National Park. Photograph by Bob Smith, University of Utah, 2001.
Students installing a seismometer
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University of Utah and University of Oregon students install a broadband seismometer as part of the Yellowstone Hotspot Geodynamics project in a gravel pit near Lewis Lake in 2000. Data from these temporarily deployed seismographs are used to monitor Yellowstone's earthquakes and to create seismic "CAT scans" of Yellowstone's crust and mantle magma plumbing chambers. Photograph by Bob Smith, University of Utah, 2000.
Photograph of a GPS campaign survery, Yellowstone National Park
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A high-precision Global Positioning Systems (GPS) antenna used to monitor horizontal and vertical ground motions of the Yellowstone caldera, Yellowstone National Park. This is one of 60 sites that are periodically observed and used to measure how the Yellowstone caldera moves up and down in response to magmatic fluid transport of the Yellowstone volcanic system. Photograph by Bob Smith, University of Utah, August 2000.
Gas sampling at Washburn Hot Springs
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Scientists take gas samples at Washburn Hot Springs to measure sulfur-gas emissions from this thermal area. Photograph by David E. Wieprecht, September 1998.
GPS receiver at Yellowstone Lake.
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High-precision GPS antenna for receiving the signals from orbiting GPS satellites at Lake Junction, Yellowstone. It is connected to the earth by a specially installed 2" Invar rod. This is a special antenna that shields out extraneous microwave signals and allows the precision of measuring ground movements to millimeters. Photograph by Bob Smith, University of Utah, summer 2001.
GPS atenna at Lake Junction, Yellowstone .
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The Lake seismic and GPS observatory. This facility houses a modern digital recording seismograph operated cooperatively by the University of Utah with the USGS National Earthquake Center. The site also includes a high-precision, continuous-recording, GPS receiver. Data from both instruments are transmitted in real-time by satellite (satellite dish shown). From the GPS information, the position of the earth at this point can be determined to a high precision of centimeters. By comparing the positions of the station with time, scientists can determine the velocity of the ground motion that can be affected by magma flow and plate motions. Photograph by Bob Smith, University of Utah, summer 2001.
Broadband seismometer installed at Lake Junction, Yellowstone.
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Modern broadband seismometer installed at Lake Junction, Yellowstone, designed to record three components of ground montion. This seismograph records shear waves that are sensitive to fluid flow such as in hydrothermal and magmatic volcanic systems. Photograph by Bob Smith, University of Utah, summer 2001.
Seismometer being installed near Old Faithful, Yellowstone.
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An engineer from the University of Utah is preparing to install a modern, digitally recorded seismometer near Old Faithful, Yellowstone. Photograph by David Drobeck, University of Utah, 2001.
Scientist relaying telemetry.
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A University of Utah engineer (atop tree in the middle of the photo) is installing a modern spread-spectrum radio relay antenna for transmitting digitally recorded seismograph data from a seismometer, buried in the ground at the bottom of the tree. Photograph by Dave Drobeck, University of Utah, 2001.