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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Sediment thickness and ground motion site amplification along the United States Atlantic and Gulf Coastal Plains
Past and present research on earthquake ground motions along the Atlantic and Gulf Coastal Plains and Mississippi Embayment show significant period-dependent site response that is not presently accounted for in ground motion models. These deviations are strongly correlated with the thickness of Mesozoic and younger syn- and post-rift sediments. With the recent incorporation of deep basin depth mea
Authors
Oliver S. Boyd, David Henry Churchwell, Morgan P. Moschetti, Eric M. Thompson, Thomas L. Pratt, Martin C. Chapman, Sanaz Rezaeian
Medium-fidelity CFD modeling of multicopter wakes for airborne sensor measurements
No abstract available.
Authors
Jonathan Chiew, Michael Aftosmis, Kristen L. Manies
Demonstration of a novel quantitative microscopy technique for automated characterization of in situ particulate matter in coal miners with progressive massive fibrosis
Rationale: Increasing exposure to respirable crystalline silica (RCS) linked to changes in mining production processes has been implicated in the resurgence of severe lung disease in U.S. coal miners. Lung mineralogy can provide insight into particle pathogenesis. However, standard approaches to characterizing in situ particulate matter (PM) by pulmonary pathologists have poor inter-rater comparab
Authors
Jeremy T. Hua, Lauren M. Zell-Baran, L. H. Go, Carlyne D. Cool, Heather A. Lowers, K. S. Almberg, Emily A. Sarver, Susan M. Majka, Kathy D. Pang, R. A. Cohen, Cecil S. Rose
Migration of first-year steppe eagles (Aquila nipalensis) from northern Kazakhstan and implications for conservation
Extensive anthropogenic alteration of steppe ecosystems throughout Eurasia leaves central Asia with some of the world’s last remaining large expanses of grassland habitat. Steppe eagles (Aquila nipalensis) are globally endangered breed primarily in these steppe ecosystems. We evaluated migratory movements of first year steppe eagles hatched in northern Kazakhstan, to understand their migration and
Authors
Todd E. Katzner, R. Efrat, A. E. Bragin, Y. Lehnardt, E. A. Bragin, N. Sapir
Preliminary petrographic and geochemical data for potential source rocks for sediment-hosted stratabound copper deposits in the Lake Superior portion of the Midcontinent Rift
No abstract available.
Authors
Timothy S. Hayes, Frank K. Mazdab
Determination of optimal set of spatio-temporal features for predicting burn probability in the state of California, USA
Wildfires play a critical role in determining ecosystem structure and function and pose serious risks to human life, property and ecosystem services. Burn probability (BP) models the likelihood that a location could burn. Simulation models are typically used to predict BP but are computationally intensive. Machine learning (ML) pipelines can predict BP and reduce computational intensity. In this w
Authors
Javier Andres Pastorino Gonzalez, Joseph Willliams Director, Ashis K Biswas, Todd Hawbaker
Volcanoes of the Mojave: The 2022 Desert Symposium field trip road log
Basalt lava fields, some decorated with scoria ‘cinder’ cones, are scattered around the Mojave Desert. Most basalt fields are short-lived, but the Cima volcanic field is unique in having eruptions that span ~7.5 m.y., including the youngest eruption in the Mojave Desert at ~12 ka. Xenolith-bearing basalts that include both mantle and deep crustal rocks are known in several fields. All basalt fi
Authors
David C. Buesch, David M. Miller, Bruce Bridenbecker, Mark Sweeney
Hyperspectral Thermal Emission Spectrometer (HyTES) images of basaltic and sedimentary deposits in the southwest Cima volcanic field, California
The southwestern part of the Cima volcanic field in the Mojave National Monument, California, contains many of the youngest basaltic cinder cones and lava flows in the field (Wilshire and others, 2002). In 2014 the Hyperspectral Thermal Emission Spectrometer (HyTES) collected a swath of data across this area. This summary describes the HyTES instrument, data, and images, and compares two standar
Authors
David C. Buesch, Simon J Hook
Remote sensing and mapping Miocene paleovalleys of the Marble, Bristol, and Old Dad Mountains in the Trilobite and Bristol Mountain Wildernesses, California
Wilderness areas in the Mojave Desert, California, are remote and rugged terrain, but they contain important geology for understanding faults of the eastern California shear zone (ECSZ), and remote sensing offers techniques that can optimize mapping. The Bristol–Granite Mountain fault zone (BGMFZ) is the easternmost fault of the ECSZ with the Marble, Bristol, and Old Dad mountains on either side o
Authors
David C. Buesch, Janet Harvey
Fault-influenced incision in western Grand Canyon, Arizona U.S.A.
Preliminary interpretation of new and updated incision rates in western Grand Canyon shows the effects of Quaternary faulting, which dampens river incision rates in the footwalls and amplifies them in the hanging walls of normal faults. In the reach between Lava Falls and Diamond Creek in western Grand Canyon, about 178 to 225 river miles downstream from Lees Ferry, the river crosses the neotecton
Authors
Ryan S. Crow, Karl Karlstrom, Warren Sharp, Victor Polyak, Yemane Asmerom, Laura Crossey
Temporal relations between the Boulder Batholith and Elkhorn Mountains Volcanics, western Montana: “The Nature of Batholiths” revised
No abstract available.
Authors
Karen Lund, John N. Aleinikoff
Invertibility aware integration of static and time-series data: An application to lake temperature modeling
Accurate predictions of water temperature are the foundation for many decisions and regulations, with direct impacts on water quality, fishery yields, and power production. Building accurate broad-scale models for lake temperature prediction remains challenging in practice due to the variability in the data distribution across different lake systems monitored by static and time-series data. In thi
Authors
Kshitij Tayal, Xiaowei Jia, Rahul Ghosh, Jared Willard, Jordan Read, Vipin Kumar