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
Assessing roadway contributions to stormwater flows, concentrations, and loads with the StreamStats application Assessing roadway contributions to stormwater flows, concentrations, and loads with the StreamStats application
The Oregon Department of Transportation (ODOT) and other state departments of transportation need quantitative information about the percentages of different land cover categories above any given stream crossing in the state to assess and address roadway contributions to water-quality impairments and resulting total maximum daily loads. The U.S. Geological Survey, in cooperation with...
Authors
Adam Stonewall, Gregory E. Granato, Tana Haluska
Preliminary flood-duration frequency estimates using naturalized streamflow records for the Willamette River Basin, Oregon Preliminary flood-duration frequency estimates using naturalized streamflow records for the Willamette River Basin, Oregon
In this study, “naturalized” daily streamflow records, created by the U.S. Army Corps of Engineers and the Bureau of Reclamation, were used to compute 1-, 3-, 7-, 10-, 15-, 30-, and 60-day annual maximum streamflow durations, which are running averages of daily streamflow for the number of days in each duration. Once the annual maximum durations were computed, the floodduration...
Authors
Greg D. Lind, Adam J. Stonewall
Hydrogeologic framework and selected components of the groundwater budget for the upper Umatilla River Basin, Oregon Hydrogeologic framework and selected components of the groundwater budget for the upper Umatilla River Basin, Oregon
Executive Summary This report presents a summary of the hydrogeology of the upper Umatilla River Basin, Oregon, based on characterization of the hydrogeologic framework, horizontal and vertical directions of groundwater flow, trends in groundwater levels, and components of the groundwater budget. The conceptual model of the groundwater flow system integrates available data and...
Authors
Nora B. Herrera, Kate Ely, Smita Mehta, Adam J. Stonewall, John C. Risley, Stephen R. Hinkle, Terrence D. Conlon
Developing flood-inundation maps for Johnson Creek, Portland, Oregon Developing flood-inundation maps for Johnson Creek, Portland, Oregon
Digital flood-inundation maps were created for a 12.9‑mile reach of Johnson Creek by the U.S. Geological Survey (USGS). The flood-inundation maps depict estimates of water depth and areal extent of flooding from the mouth of Johnson Creek to just upstream of Southeast 174th Avenue in Portland, Oregon. Each flood-inundation map is based on a specific water level and associated streamflow...
Authors
Adam J. Stonewall, Benjamin A. Beal
Evaluation of flood inundation in Crystal Springs Creek, Portland, Oregon Evaluation of flood inundation in Crystal Springs Creek, Portland, Oregon
Efforts to improve fish passage have resulted in the replacement of six culverts in Crystal Springs Creek in Portland, Oregon. Two more culverts are scheduled to be replaced at Glenwood Street and Bybee Boulevard (Glenwood/Bybee project) in 2016. Recently acquired data have allowed for a more comprehensive understanding of the hydrology of the creek and the topography of the watershed...
Authors
Adam Stonewall, Glen Hess
Development of a CE-QUAL-W2 temperature model for Crystal Springs Lake, Portland, Oregon Development of a CE-QUAL-W2 temperature model for Crystal Springs Lake, Portland, Oregon
During summer 2014, lake level, streamflow, and water temperature in and around Crystal Springs Lake in Portland, Oregon, were measured by the U.S. Geological Survey and the City of Portland Bureau of Environmental Services to better understand the effect of the lake on Crystal Springs Creek and Johnson Creek downstream. Johnson Creek is listed as an impaired water body for temperature...
Authors
Norman L. Buccola, Adam J. Stonewall
Science and Products
Filter Total Items: 19
Assessing roadway contributions to stormwater flows, concentrations, and loads with the StreamStats application Assessing roadway contributions to stormwater flows, concentrations, and loads with the StreamStats application
The Oregon Department of Transportation (ODOT) and other state departments of transportation need quantitative information about the percentages of different land cover categories above any given stream crossing in the state to assess and address roadway contributions to water-quality impairments and resulting total maximum daily loads. The U.S. Geological Survey, in cooperation with...
Authors
Adam Stonewall, Gregory E. Granato, Tana Haluska
Preliminary flood-duration frequency estimates using naturalized streamflow records for the Willamette River Basin, Oregon Preliminary flood-duration frequency estimates using naturalized streamflow records for the Willamette River Basin, Oregon
In this study, “naturalized” daily streamflow records, created by the U.S. Army Corps of Engineers and the Bureau of Reclamation, were used to compute 1-, 3-, 7-, 10-, 15-, 30-, and 60-day annual maximum streamflow durations, which are running averages of daily streamflow for the number of days in each duration. Once the annual maximum durations were computed, the floodduration...
Authors
Greg D. Lind, Adam J. Stonewall
Hydrogeologic framework and selected components of the groundwater budget for the upper Umatilla River Basin, Oregon Hydrogeologic framework and selected components of the groundwater budget for the upper Umatilla River Basin, Oregon
Executive Summary This report presents a summary of the hydrogeology of the upper Umatilla River Basin, Oregon, based on characterization of the hydrogeologic framework, horizontal and vertical directions of groundwater flow, trends in groundwater levels, and components of the groundwater budget. The conceptual model of the groundwater flow system integrates available data and...
Authors
Nora B. Herrera, Kate Ely, Smita Mehta, Adam J. Stonewall, John C. Risley, Stephen R. Hinkle, Terrence D. Conlon
Developing flood-inundation maps for Johnson Creek, Portland, Oregon Developing flood-inundation maps for Johnson Creek, Portland, Oregon
Digital flood-inundation maps were created for a 12.9‑mile reach of Johnson Creek by the U.S. Geological Survey (USGS). The flood-inundation maps depict estimates of water depth and areal extent of flooding from the mouth of Johnson Creek to just upstream of Southeast 174th Avenue in Portland, Oregon. Each flood-inundation map is based on a specific water level and associated streamflow...
Authors
Adam J. Stonewall, Benjamin A. Beal
Evaluation of flood inundation in Crystal Springs Creek, Portland, Oregon Evaluation of flood inundation in Crystal Springs Creek, Portland, Oregon
Efforts to improve fish passage have resulted in the replacement of six culverts in Crystal Springs Creek in Portland, Oregon. Two more culverts are scheduled to be replaced at Glenwood Street and Bybee Boulevard (Glenwood/Bybee project) in 2016. Recently acquired data have allowed for a more comprehensive understanding of the hydrology of the creek and the topography of the watershed...
Authors
Adam Stonewall, Glen Hess
Development of a CE-QUAL-W2 temperature model for Crystal Springs Lake, Portland, Oregon Development of a CE-QUAL-W2 temperature model for Crystal Springs Lake, Portland, Oregon
During summer 2014, lake level, streamflow, and water temperature in and around Crystal Springs Lake in Portland, Oregon, were measured by the U.S. Geological Survey and the City of Portland Bureau of Environmental Services to better understand the effect of the lake on Crystal Springs Creek and Johnson Creek downstream. Johnson Creek is listed as an impaired water body for temperature...
Authors
Norman L. Buccola, Adam J. Stonewall