Adam Stonewall
Adam Stonewall is a supervisory hydrologist and the surface water specialist at the USGS Oregon Water Science Center.
I have been a Hydrologist in the Oregon Water Science Center since 2001. My background is primarily in flood frequency analysis. I also have strong interest and/or experience in statistical testing for nonstationarity, climate change, monte-carlo simulations and nonparametric statistics.
Education and Certifications
B.S. in hydrology from the University of Arizona
M.S. in forest hydrology from the University of British Columbia. Thesis: “The Use of Monte-Carlo Simulations in the Detection of Nonstationarity in Peak-Annual Flood Time Series of British Columbia"
Science and Products
Filter Total Items: 19
Simulations of a hypothetical temperature control structure at Detroit Dam on the North Santiam River, northwestern Oregon
Water temperature models of Detroit Lake, Big Cliff Lake, and the North Santiam River in northwestern Oregon were used to assess the potential for a hypothetical structure with variable intake elevations and an internal connection to power turbines at Detroit Dam (scenario SlidingWeir) to release more natural, pre-dam temperatures year round. This hypothetical structure improved outflow temperatur
Authors
Norman L. Buccola, Adam J. Stonewall, Stewart A. Rounds
Development of a HEC-RAS temperature model for the North Santiam River, northwestern Oregon
A one-dimensional, unsteady streamflow and temperature model (HEC-RAS) of the North Santiam and Santiam Rivers was developed by the U.S. Geological Survey to be used in conjunction with previously developed two-dimensional hydrodynamic water-quality models (CE-QUAL-W2) of Detroit and Big Cliff Lakes upstream of the study area. In conjunction with the output from the previously developed models, th
Authors
Adam J. Stonewall, Norman L. Buccola
Comparison of historical streamflows to 2013 Streamflows in the Williamson, Sprague, and Wood Rivers, Upper Klamath Lake Basin, Oregon
In 2013, the Upper Klamath Lake Basin, Oregon, experienced a dry spring, resulting in an executive order declaring a state of drought emergency in Klamath County. The 2013 drought limited the water supply and led to a near-total cessation of surface-water diversions for irrigation above Upper Klamath Lake once regulation was implemented. These conditions presented a unique opportunity to understan
Authors
Glen W. Hess, Adam J. Stonewall
Development of CE-QUAL-W2 models for the Middle Fork Willamette and South Santiam Rivers, Oregon
Hydrodynamic (CE-QUAL-W2) models of Hills Creek Lake (HCL), Lookout Point Lake (LOP), and Dexter Lake (DEX) on the Middle Fork Willamette River (MFWR), and models of Green Peter Lake and Foster Lake on the South Santiam River systems in western Oregon were updated and recalibrated for a wide range of flow and meteorological conditions. These CE-QUAL-W2 models originally were developed by West Cons
Authors
Norman L. Buccola, Adam J. Stonewall, Annett B. Sullivan, Yoonhee Kim, Stewart A. Rounds
Suspended-sediment characteristics for the Johnson Creek basin, Oregon, water years 2007-10
Significant Findings An analysis of suspended-sediment transport in the Johnson Creek basin, Oregon, during water years 2007–10 indicated that: Streamflow characteristics for the 4 years of study were not extremely dry or wet, and represented near-average conditions. Computed average annual suspended-sediment loads were 1,890 and 4,640 tons at the Gresham and Milwaukie stations, respectively. More
Authors
Adam J. Stonewall, Heather M. Bragg
Development of an Environmental Flow Framework for the McKenzie River Basin, Oregon
The McKenzie River is a tributary to the Willamette River in northwestern Oregon. The McKenzie River is approximately 90 miles in length and has a drainage area of approximately 1,300 square miles. Two major flood control dams, a hydropower dam complex, and two hydropower canals significantly alter streamflows in the river. The structures reduce the magnitude and frequency of large and small flood
Authors
John Risley, J. Rose Wallick, Ian Waite, Adam J. Stonewall
Estimating Flow-Duration and Low-Flow Frequency Statistics for Unregulated Streams in Oregon
Flow statistical datasets, basin-characteristic datasets, and regression equations were developed to provide decision makers with surface-water information needed for activities such as water-quality regulation, water-rights adjudication, biological habitat assessment, infrastructure design, and water-supply planning and management. The flow statistics, which included annual and monthly period of
Authors
John Risley, Adam J. Stonewall, Tana Haluska
Science and Products
Filter Total Items: 19
Simulations of a hypothetical temperature control structure at Detroit Dam on the North Santiam River, northwestern Oregon
Water temperature models of Detroit Lake, Big Cliff Lake, and the North Santiam River in northwestern Oregon were used to assess the potential for a hypothetical structure with variable intake elevations and an internal connection to power turbines at Detroit Dam (scenario SlidingWeir) to release more natural, pre-dam temperatures year round. This hypothetical structure improved outflow temperatur
Authors
Norman L. Buccola, Adam J. Stonewall, Stewart A. Rounds
Development of a HEC-RAS temperature model for the North Santiam River, northwestern Oregon
A one-dimensional, unsteady streamflow and temperature model (HEC-RAS) of the North Santiam and Santiam Rivers was developed by the U.S. Geological Survey to be used in conjunction with previously developed two-dimensional hydrodynamic water-quality models (CE-QUAL-W2) of Detroit and Big Cliff Lakes upstream of the study area. In conjunction with the output from the previously developed models, th
Authors
Adam J. Stonewall, Norman L. Buccola
Comparison of historical streamflows to 2013 Streamflows in the Williamson, Sprague, and Wood Rivers, Upper Klamath Lake Basin, Oregon
In 2013, the Upper Klamath Lake Basin, Oregon, experienced a dry spring, resulting in an executive order declaring a state of drought emergency in Klamath County. The 2013 drought limited the water supply and led to a near-total cessation of surface-water diversions for irrigation above Upper Klamath Lake once regulation was implemented. These conditions presented a unique opportunity to understan
Authors
Glen W. Hess, Adam J. Stonewall
Development of CE-QUAL-W2 models for the Middle Fork Willamette and South Santiam Rivers, Oregon
Hydrodynamic (CE-QUAL-W2) models of Hills Creek Lake (HCL), Lookout Point Lake (LOP), and Dexter Lake (DEX) on the Middle Fork Willamette River (MFWR), and models of Green Peter Lake and Foster Lake on the South Santiam River systems in western Oregon were updated and recalibrated for a wide range of flow and meteorological conditions. These CE-QUAL-W2 models originally were developed by West Cons
Authors
Norman L. Buccola, Adam J. Stonewall, Annett B. Sullivan, Yoonhee Kim, Stewart A. Rounds
Suspended-sediment characteristics for the Johnson Creek basin, Oregon, water years 2007-10
Significant Findings An analysis of suspended-sediment transport in the Johnson Creek basin, Oregon, during water years 2007–10 indicated that: Streamflow characteristics for the 4 years of study were not extremely dry or wet, and represented near-average conditions. Computed average annual suspended-sediment loads were 1,890 and 4,640 tons at the Gresham and Milwaukie stations, respectively. More
Authors
Adam J. Stonewall, Heather M. Bragg
Development of an Environmental Flow Framework for the McKenzie River Basin, Oregon
The McKenzie River is a tributary to the Willamette River in northwestern Oregon. The McKenzie River is approximately 90 miles in length and has a drainage area of approximately 1,300 square miles. Two major flood control dams, a hydropower dam complex, and two hydropower canals significantly alter streamflows in the river. The structures reduce the magnitude and frequency of large and small flood
Authors
John Risley, J. Rose Wallick, Ian Waite, Adam J. Stonewall
Estimating Flow-Duration and Low-Flow Frequency Statistics for Unregulated Streams in Oregon
Flow statistical datasets, basin-characteristic datasets, and regression equations were developed to provide decision makers with surface-water information needed for activities such as water-quality regulation, water-rights adjudication, biological habitat assessment, infrastructure design, and water-supply planning and management. The flow statistics, which included annual and monthly period of
Authors
John Risley, Adam J. Stonewall, Tana Haluska