Publications
All of our publications are accessible through the USGS Publication Warehouse. Publications by scientists of the Oregon Water Science Center are listed below.
Filter Total Items: 791
Integrating depth measurements from gaging stations with image archives for spectrally based remote sensing of river bathymetry Integrating depth measurements from gaging stations with image archives for spectrally based remote sensing of river bathymetry
Remote sensing can be an effective tool for mapping river bathymetry, but the need for direct measurements to calibrate image-derived depth estimates impedes broader application of this approach. One way to circumvent the need for field campaigns dedicated to calibration is to capitalize upon existing data. In this study, we introduce a framework for Bathymetric Mapping using Gage...
Authors
Carl J. Legleiter, Brandon Overstreet, Paul J. Kinzel
Total phosphorus and suspended-sediment concentrations and loads from two main tributaries to Upper Klamath Lake, Oregon, 2014–20 Total phosphorus and suspended-sediment concentrations and loads from two main tributaries to Upper Klamath Lake, Oregon, 2014–20
Total phosphorus (TP) and suspended-sediment concentrations (SSC) and loads were computed at two U.S. Geological Survey (USGS) streamgages in the upper Klamath River Basin on the Sprague (USGS site ID 11501000) and Williamson (USGS site ID 11502500) Rivers using high temporal resolution turbidity and streamflow data to develop surrogate regression models. Regression models were updated...
Authors
Liam N. Schenk, Caelan Simeone
Restoring Pacific Lamprey in the Umpqua River Basin of Oregon: A workshop summary Restoring Pacific Lamprey in the Umpqua River Basin of Oregon: A workshop summary
The Umpqua River Basin in southwestern Oregon (Figure 1) is part of the lands inhabited by the Cow Creek Band of Umpqua Tribe of Indians and an area of active co-management authority. This Basin supports a unique fish fauna, including important populations of Pacific salmon (Oncorhynchus spp.) and steelhead (O. mykiss), and other native fishes that are endemic to the region (Mims et al...
Authors
Jason Dunham, Krista Jones, Kelly C. Coates, Travis Mackie
Reservoir evolution, downstream sediment transport, downstream channel change, and synthesis of geomorphic responses of Fall Creek and Middle Fork Willamette River to water years 2012–18 streambed drawdowns at Fall Creek Lake, Oregon Reservoir evolution, downstream sediment transport, downstream channel change, and synthesis of geomorphic responses of Fall Creek and Middle Fork Willamette River to water years 2012–18 streambed drawdowns at Fall Creek Lake, Oregon
Authors
Mackenzie K. Keith, J. Rose Wallick, Liam N. Schenk, Laurel E. Stratton Garvin, Gabriel W. Gordon, Heather M. Bragg
Comparing modern identification methods for wild bees: Metabarcoding and image-based morphological taxonomic assignment Comparing modern identification methods for wild bees: Metabarcoding and image-based morphological taxonomic assignment
With the decline of bee populations worldwide, studies determining current wild bee distributions and diversity are increasingly important. Wild bee identification is often completed by experienced taxonomists or by genetic analysis. The current study was designed to compare two methods of identification including: (1) morphological identification by experienced taxonomists using images...
Authors
Cassandra Smith, Robert S. Cornman, Jennifer A. Fike, Johanna M. Kraus, Sara J. Oyler-McCance, Carrie E. Givens, Michelle L. Hladik, Mark W. Vandever, Dana W. Kolpin, Kelly L. Smalling
Timing and source of recharge to the Columbia River Basalt groundwater system in northeastern Oregon Timing and source of recharge to the Columbia River Basalt groundwater system in northeastern Oregon
Recharge to and flow within the Columbia River Basalt Group (CRBG) groundwater flow system of northeastern Oregon were characterized using isotopic, gas, and age-tracer samples from wells completed in basalt, springs, and stream base flow. Most groundwater samples were late-Pleistocene to early-Holocene; median age of well samples was 11,100 years. The relation between mean groundwater...
Authors
Henry M. Johnson, Kate E. Ely, Anna-Turi Maher
Groundwater model of the Harney Basin, southeastern Oregon Groundwater model of the Harney Basin, southeastern Oregon
Groundwater development, mainly for large-scale irrigation, has increased substantially in the Harney Basin of southeastern Oregon since 2010. Concurrently, some areas of the basin experienced groundwater-level declines of more than 100 feet, and some shallow wells have gone dry. The Oregon Water Resources Department has limited new groundwater development in the basin until an improved
Authors
Stephen B. Gingerich, Darrick E. Boschmann, Gerald H. Grondin, Halley J Schibel
Predicting redox conditions in groundwater at a national scale using random forest classification Predicting redox conditions in groundwater at a national scale using random forest classification
Redox conditions in groundwater may markedly affect the fate and transport of nutrients, volatile organic compounds, and trace metals, with significant implications for human health. While many local assessments of redox conditions have been made, the spatial variability of redox reaction rates makes the determination of redox conditions at regional or national scales problematic. In...
Authors
Anthony J. Tesoriero, Susan Wherry, Danielle Dupuy, Tyler D. Johnson
Prioritizing river basins for nutrient studies Prioritizing river basins for nutrient studies
Increases in fluxes of nitrogen (N) and phosphorus (P) in the environment have led to negative impacts affecting drinking water, eutrophication, harmful algal blooms, climate change, and biodiversity loss. Because of the importance, scale, and complexity of these issues, it may be useful to consider methods for prioritizing nutrient research in representative drainage basins within a...
Authors
Anthony J. Tesoriero, Dale M. Robertson, Christopher Green, J.K. Bohlke, Judson Harvey, Sharon L. Qi
Examining the effect of physicochemical and meteorological variables on water quality indicators of harmful algal blooms in a shallow hypereutrophic lake using machine learning techniques Examining the effect of physicochemical and meteorological variables on water quality indicators of harmful algal blooms in a shallow hypereutrophic lake using machine learning techniques
Two independent machine learning techniques, boosted regression trees and artificial neural networks, were used to examine the physicochemical and meteorological variables that affect the seasonal growth and decline of harmful algal blooms (HABs) in a shallow, hypereutrophic lake in southern Oregon. High temporal resolution data collected at four monitoring locations were aggregated into...
Authors
Susan Wherry, Liam N. Schenk
Multiple lines of evidence point to pesticides as stressors affecting invertebrate communities in small streams in five United States regions Multiple lines of evidence point to pesticides as stressors affecting invertebrate communities in small streams in five United States regions
Multistressor studies were performed in five regions of the United States to assess the role of pesticides as stressors affecting invertebrate communities in wadable streams. Pesticides and other chemical and physical stressors were measured in 75 to 99 streams per region for 4 weeks, after which invertebrate communities were surveyed (435 total sites). Pesticides were sampled weekly in...
Authors
Lisa H. Nowell, Patrick W. Moran, Ian R. Waite, Travis S. Schmidt, Paul M. Bradley, Barbara J. Mahler, Peter Van Metre
Water-level change from a multiple-well aquifer test in volcanic rocks, Umatilla Indian Reservation near Mission, northeastern Oregon, 2016 Water-level change from a multiple-well aquifer test in volcanic rocks, Umatilla Indian Reservation near Mission, northeastern Oregon, 2016
The U.S. Geological Survey, in cooperation with the Confederated Tribes of the Umatilla Indian Reservation (CTUIR), (1) estimated water-level change from a multiple-well aquifer test centered on CTUIR well number 422 and (2) evaluated hydraulic connections between the pumping and observation wells on the Umatilla Indian Reservation near Mission, northeastern Oregon to improve the...
Authors
C. Amanda Garcia, Joseph J. Kennedy, Kate Ely