Conference Papers
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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
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Assessing global elevation models for mapping the low elevation coastal zone
Elevation data are critical for assessments of coastal hazards, including sea-level rise (SLR), flooding, storm surge, tsunami impacts, and wave run-up. Previous research has demonstrated that the quality of data used in elevation-based hazard assessments must be well documented and applied properly to assess potential impacts. Global digital elevation models (DEMs), at 30- to 90-meter resolutio
Authors
Dean B. Gesch
Effects of a large flood on sediment and turbidity reduction projects in the Esopus Creek watershed, NY
On December 24-25, 2020, 7.3 to 14.6 cm of rain fell on a large snowpack in the upper Esopus Creek (UEC) watershed in the Catskill Mountains of New York. The resulting flood had an annual exceedance probability (AEP) of 4 to 20% (recurrence intervals of 25 to 5 years) in streams across the watershed, resulted in substantial geomorphic adjustments in some stream channels, and transported the highes
Authors
Jason Siemion, Wae D. Davis, Donald B. Bonville
Coupled upstream-downstream geomorphic responses to deep reservoir drawdowns at Fall Creek Dam, Oregon
No abstract available.
Authors
Mackenzie K. Keith, J. Rose Wallick, Laurel E. Stratton Garvin, Gabriel W. Gordon
State of the science and decision support for measuring suspended sediment with acoustic instrumentation
Acoustic instrumentation can be used to provide time-series and discrete estimates of suspended-sediment concentration, load, and sediment particle sizes in fluvial systems, which are essential for creating informed solutions to many sediment-related environmental, engineering, and land management concerns. Historically, scientists have developed relations between suspended sediment characteristic
Authors
Molly S. Wood, Joel T. Groten, Timothy D. Straub, Dan R.W. Haught, Ronald E. Griffiths, Justin A. Boldt, Zulimar Lucena, Jeb E. Brown, Steven E. Suttles, Patrick J. Dickhudt
Rapid modeling of compound flooding across broad coastal regions and the necessity to include rainfall driven processes: A case study of Hurricane Florence (2018)
In this work, we show that large-scale compound flood models developed for North and South Carolina, USA, can skillfully simulate multiple drivers of coastal flooding as confirmed by measurements collected during Hurricane Florence (2018). Besides the accuracy of representing observed water levels, the importance of individual processes was investigated. We demonstrate that across the area of inte
Authors
Tim Leijnse, Cornelis M. Nederhoff, Jennifer Anne Thomas, Kai Alexander Parker, Maarten van Ormondt, Li H. Erikson, Robert T. McCall, Ap van Dongeren, Andrea C. O'Neill, Patrick L. Barnard
Shoreface sediment availability offshore of a rapidly migrating, mixed-energy barrier island
Less is known about sediment exchanges between shorefaces and mixed-energy barrier islands (MEBI) than between shorefaces and wave-dominated barrier islands. We used seismic stratigraphy from Cedar Island, Virginia, USA to understand the interplay between shoreface deposits and MEBI morphodynamics. Interpretations reveal that the shelf and shoreface are extensively dissected by breach and inlet ch
Authors
Emily A. Wei, Jennifer L. Miselis
Incorporating wave climate complexity into modeling lower shoreface morphology and transport
The lower shoreface, a transitional subaqueous region extending from the seaward limit of the surf zone to beyond the closure depth, serves as a sediment reservoir and pathway in sandy beach environments over annual to millennial time scales. Despite the important role this region plays in shoreline dynamics, the morphodynamics of the lower shoreface remain poorly quantified and understood. To bet
Authors
Megan Gillen, Andrew D. Ashton, Jennifer L. Miselis, Daniel J. Ciarletta, Emily A. Wei, Christopher R. Sherwood
Stream corridor sediment budget for watershed sediment source apportionment for the forested Little Fork River, Minnesota
No abstract available.
Authors
Faith Fitzpatrick, Shelby P. Sterner, Anna C. Baker, Sam Soderman, Karen B. Gran, Andy Kasun, Mike Kennedy, Phil Norvitch, Jesse Anderson, Matt Guntzmann
Preliminary analysis of a horizontal multifrequency hydroacoustic device designed for surrogate measurements of suspended sediment concentration: The Horizontal Acoustic Sediment Current Profiler
Single frequency active hydroacoustic measurements have been correlated with suspended sediment concentration. In river systems that include widely varying suspended sediment particle sizes, a multi-frequency hydroacoustic approach has increased predictive capabilities. However, the multi-frequency approach requires installation and operation of multiple sensors in a river channel and relies on te
Authors
Jeb E. Brown, Tristan Joel Austring, Rodney J. Richards, Tyson Hatch, Joel William Homan
Acoustic measurements on a shallow, sand-bed river: A case study from the Rio Grande
The Middle Rio Grande (MRG) is a dynamic and complex fluvial system where flow and sediment transported from the Upper Rio Grande and MRG tributaries influence the form of the river. How sediment is transported through the MRG is an important planning question as it addresses a wide range of concerns including flood control and river rehabilitation, thus continuous sediment measurements are needed
Authors
Jonathan AuBuchon, David Abraham, Ari Posner, Jeb E. Brown, Tony Jackson, Ronald E. Griffiths
Incorporating uncertainty in susceptibility criteria into probabilistic liquefaction hazard analysis
Most conventional approaches for assessing liquefaction triggering hazards generally rely on simplified procedures that involve identifying liquefaction susceptible layers and calculating a factor of safety against liquefaction (FSL) in each layer. Such procedures utilize deterministic semi-empirical models for standard penetration test (SPT), cone penetrometer test (CPT), or shear wave velocity (
Authors
Andrew James Makdisi
Exploring the geology of the Midcontinent Rift under western Lake Superior using a preliminary velocity model of seismic line GLIMPCE C
Seismic-reflection data were collected in the 1980s as part of the Great Lakes International Multidisciplinary Program on Crustal Evolution (GLIMPCE) to investigate the 1.1 Ga Midcontinent Rift System (MRS). GLIMPCE Line C crosses western Lake Superior from north to south shores (Fig. 1 inset). Many previous workers have interpreted the MRS in Line C as an asymmetric central graben filled with 10–
Authors
V. J. S. Grauch, Samuel J. Heller, Esther K. Stewart, Laurel G. Woodruff