Kurt Spicer
Long term monitoring of water and sediment discharge at Mount St. Helens.
Science and Products
Filter Total Items: 22
Estimating concentrations of fine-grained and total suspended sediment from close-range remote sensing imagery Estimating concentrations of fine-grained and total suspended sediment from close-range remote sensing imagery
Fluvial sediment, a vital surface water resource, is hazardous in excess. Suspended sediment, the most prevalent source of impairment of river systems, can adversely affect flood control, navigation, fisheries and aquatic ecosystems, recreation, and water supply (e.g., Rasmussen et al., 2009; Qu, 2014). Monitoring programs typically focus on suspended-sediment concentration (SSC) and...
Authors
Adam R. Mosbrucker, Kurt R. Spicer, Tami S. Christianson, Mark A. Uhrich
Correlations of turbidity to suspended-sediment concentration in the Toutle River Basin, near Mount St. Helens, Washington, 2010-11 Correlations of turbidity to suspended-sediment concentration in the Toutle River Basin, near Mount St. Helens, Washington, 2010-11
Researchers at the U.S. Geological Survey, Cascades Volcano Observatory, investigated alternative methods for the traditional sample-based sediment record procedure in determining suspended-sediment concentration (SSC) and discharge. One such sediment-surrogate technique was developed using turbidity and discharge to estimate SSC for two gaging stations in the Toutle River Basin near...
Authors
Mark A. Uhrich, Jasna Kolasinac, Pamela L. Booth, Robert L. Fountain, Kurt R. Spicer, Adam R. Mosbrucker
Hydrothermal monitoring in a quiescent volcanic arc: Cascade Range, northwestern United States Hydrothermal monitoring in a quiescent volcanic arc: Cascade Range, northwestern United States
Ongoing (1996–present) volcanic unrest near South Sister, Oregon, is accompanied by a striking set of hydrothermal anomalies, including elevated temperatures, elevated major ion concentrations, and 3He/4He ratios as large as 8.6 RA in slightly thermal springs. These observations prompted the US Geological Survey to begin a systematic hydrothermal-monitoring effort encompassing 25 sites...
Authors
Steven E. Ingebritsen, N. G. Randolph-Flagg, Katrina D. Gelwick, Elizabeth A. Lundstrom, Ilana M. Crankshaw, Anna M. Murveit, M.E. Schmidt, Deborah Bergfeld, Kurt R. Spicer, David S. Tucker, Robert H. Mariner, William C. Evans
Geomorphic response of the Sandy River, Oregon, to removal of Marmot Dam Geomorphic response of the Sandy River, Oregon, to removal of Marmot Dam
The October 2007 breaching of a temporary cofferdam constructed during removal of the 15-meter (m)-tall Marmot Dam on the Sandy River, Oregon, triggered a rapid sequence of fluvial responses as ~730,000 cubic meters (m3) of sand and gravel filling the former reservoir became available to a high-gradient river. Using direct measurements of sediment transport, photogrammetry, airborne...
Authors
Jon J. Major, Jim E. O'Connor, Charles J. Podolak, Mackenzie K. Keith, Gordon E. Grant, Kurt R. Spicer, Smokey Pittman, Heather M. Bragg, J. Rose Wallick, Dwight Q. Tanner, Abagail Rhode, Peter R. Wilcock
Evolving fluvial response of the Sandy River, Oregon, following removal of Marmot Dam Evolving fluvial response of the Sandy River, Oregon, following removal of Marmot Dam
The October 2007 removal of Marmot Dam on the Sandy River, Oregon, triggered a rapid sequence of fluvial responses as ~730,000 m3 of sand and gravel that filled the former reservoir were suddenly exposed to an energetic river. Using direct measurements of sediment transport, photogrammetry, and repeat surveys between transport events, we monitored the erosion, transport, and redeposition...
Authors
Jon J. Major, Jim O’Connor, Charles J. Podolak, Mackenzie K. Keith, Kurt R. Spicer, J. Rose Wallick, Heather M. Bragg, Smokey Pittman, Peter R. Wilcock, Abagail Rhode, Gordon E. Grant
Time-lapse imagery of the breaching of Marmot Dam, Oregon, and subsequent erosion of sediment by the Sandy River– October 2007 to May 2008 Time-lapse imagery of the breaching of Marmot Dam, Oregon, and subsequent erosion of sediment by the Sandy River– October 2007 to May 2008
In 2007, Marmot Dam on the Sandy River, Oregon, was removed and a temporary cofferdam standing in its place was breached, allowing the river to flow freely along its entire length. Time-lapse imagery obtained from a network of digital single-lens reflex cameras placed around the lower reach of the sediment-filled reservoir behind the dam details rapid erosion of sediment by the Sandy...
Authors
Jon J. Major, Kurt R. Spicer, Rebecca A. Collins
Science and Products
Filter Total Items: 22
Estimating concentrations of fine-grained and total suspended sediment from close-range remote sensing imagery Estimating concentrations of fine-grained and total suspended sediment from close-range remote sensing imagery
Fluvial sediment, a vital surface water resource, is hazardous in excess. Suspended sediment, the most prevalent source of impairment of river systems, can adversely affect flood control, navigation, fisheries and aquatic ecosystems, recreation, and water supply (e.g., Rasmussen et al., 2009; Qu, 2014). Monitoring programs typically focus on suspended-sediment concentration (SSC) and...
Authors
Adam R. Mosbrucker, Kurt R. Spicer, Tami S. Christianson, Mark A. Uhrich
Correlations of turbidity to suspended-sediment concentration in the Toutle River Basin, near Mount St. Helens, Washington, 2010-11 Correlations of turbidity to suspended-sediment concentration in the Toutle River Basin, near Mount St. Helens, Washington, 2010-11
Researchers at the U.S. Geological Survey, Cascades Volcano Observatory, investigated alternative methods for the traditional sample-based sediment record procedure in determining suspended-sediment concentration (SSC) and discharge. One such sediment-surrogate technique was developed using turbidity and discharge to estimate SSC for two gaging stations in the Toutle River Basin near...
Authors
Mark A. Uhrich, Jasna Kolasinac, Pamela L. Booth, Robert L. Fountain, Kurt R. Spicer, Adam R. Mosbrucker
Hydrothermal monitoring in a quiescent volcanic arc: Cascade Range, northwestern United States Hydrothermal monitoring in a quiescent volcanic arc: Cascade Range, northwestern United States
Ongoing (1996–present) volcanic unrest near South Sister, Oregon, is accompanied by a striking set of hydrothermal anomalies, including elevated temperatures, elevated major ion concentrations, and 3He/4He ratios as large as 8.6 RA in slightly thermal springs. These observations prompted the US Geological Survey to begin a systematic hydrothermal-monitoring effort encompassing 25 sites...
Authors
Steven E. Ingebritsen, N. G. Randolph-Flagg, Katrina D. Gelwick, Elizabeth A. Lundstrom, Ilana M. Crankshaw, Anna M. Murveit, M.E. Schmidt, Deborah Bergfeld, Kurt R. Spicer, David S. Tucker, Robert H. Mariner, William C. Evans
Geomorphic response of the Sandy River, Oregon, to removal of Marmot Dam Geomorphic response of the Sandy River, Oregon, to removal of Marmot Dam
The October 2007 breaching of a temporary cofferdam constructed during removal of the 15-meter (m)-tall Marmot Dam on the Sandy River, Oregon, triggered a rapid sequence of fluvial responses as ~730,000 cubic meters (m3) of sand and gravel filling the former reservoir became available to a high-gradient river. Using direct measurements of sediment transport, photogrammetry, airborne...
Authors
Jon J. Major, Jim E. O'Connor, Charles J. Podolak, Mackenzie K. Keith, Gordon E. Grant, Kurt R. Spicer, Smokey Pittman, Heather M. Bragg, J. Rose Wallick, Dwight Q. Tanner, Abagail Rhode, Peter R. Wilcock
Evolving fluvial response of the Sandy River, Oregon, following removal of Marmot Dam Evolving fluvial response of the Sandy River, Oregon, following removal of Marmot Dam
The October 2007 removal of Marmot Dam on the Sandy River, Oregon, triggered a rapid sequence of fluvial responses as ~730,000 m3 of sand and gravel that filled the former reservoir were suddenly exposed to an energetic river. Using direct measurements of sediment transport, photogrammetry, and repeat surveys between transport events, we monitored the erosion, transport, and redeposition...
Authors
Jon J. Major, Jim O’Connor, Charles J. Podolak, Mackenzie K. Keith, Kurt R. Spicer, J. Rose Wallick, Heather M. Bragg, Smokey Pittman, Peter R. Wilcock, Abagail Rhode, Gordon E. Grant
Time-lapse imagery of the breaching of Marmot Dam, Oregon, and subsequent erosion of sediment by the Sandy River– October 2007 to May 2008 Time-lapse imagery of the breaching of Marmot Dam, Oregon, and subsequent erosion of sediment by the Sandy River– October 2007 to May 2008
In 2007, Marmot Dam on the Sandy River, Oregon, was removed and a temporary cofferdam standing in its place was breached, allowing the river to flow freely along its entire length. Time-lapse imagery obtained from a network of digital single-lens reflex cameras placed around the lower reach of the sediment-filled reservoir behind the dam details rapid erosion of sediment by the Sandy...
Authors
Jon J. Major, Kurt R. Spicer, Rebecca A. Collins