Conference Papers
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Magnetotelluric monitoring of the Geysers Steam Field, northern California: Phase 2 Magnetotelluric monitoring of the Geysers Steam Field, northern California: Phase 2
An original magnetotelluric (MT) survey collected in 2017 included 42 MT stations mainly in the northwestern part of The Geysers geothermal field in northern California. These data were modeled in 3D and imaged the electrically conductive cover, the electrically resistive steam field, and the electrically resistive Geysers plutonic complex (Peacock et al., 2020; Peacock et al. 2020a)...
Authors
Jared R. Peacock, David Alumbaugh, Michael Albert Mitchell, Craig Hartline
Reconstructing the geomorphic evolution and sediment budget history of a dynamic barrier island: Anclote Key, Florida Reconstructing the geomorphic evolution and sediment budget history of a dynamic barrier island: Anclote Key, Florida
Decadal to centennial variations in sediment availability are a primary driver of coastal change within barrier systems. Models help explore how barrier morphology relates to past changes in magnitude of sediment availability, but this requires insights and validation from field efforts. In this study, we investigate the progradation of Anclote Key via its morphostratigraphy, a presently...
Authors
Daniel J. Ciarletta, Jennifer L. Miselis, Julie Bernier, Arnell S. Forde, Shannon A. Mahan
City-scale geothermal energy everywhere to support renewable resilience – A transcontinental cooperation City-scale geothermal energy everywhere to support renewable resilience – A transcontinental cooperation
Cities have important and varying incentives to transform their energy sector to all-electric with low carbon emissions. However, they often encounter a number of impediments when attempting to implement such a change. For example, while urban areas have the highest energy demand-density, cities often lack the space for installing additional energy generation and/or long-duration energy...
Authors
Gregor Goetzl, Erick R. Burns, Andrew J. Stumpf, Yu-Feng Lin, Amanda Kolker, Maciej R. Klonowski, Cornelia Steiner, Ryan Cain Cahalan, Jeffrey D. Pepin
Effect of thermal and mechanical processes on hydraulic transmissivity evolution Effect of thermal and mechanical processes on hydraulic transmissivity evolution
Fracture healing is a critical component of enhanced geothermal systems, the earthquake cycle, and induced seismicity. Accordingly, there is significant interest in understanding the process of healing and its effects on fluid transport. The creation, reactivation, and sustainability of fracture networks depend on complex coupling among thermal, hydraulic, mechanical, and chemical...
Authors
Tamara Nicole Jeppson, David A. Lockner, Joshua M. Taron, Diane E. Moore, Brian D. Kilgore, Nicholas M. Beeler, Stephen H. Hickman
Proceedings of the Fiscal Year 2022 Annual Reporting Meeting to the Glen Canyon Dam Adaptive Management Program Proceedings of the Fiscal Year 2022 Annual Reporting Meeting to the Glen Canyon Dam Adaptive Management Program
(Hartwell) This report is prepared primarily to account for work conducted and products delivered in FY 2022 by GCMRC and to inform the Technical Work Group of science conducted by GCMRC and its cooperators in support of the Glen Canyon Dam Adaptive Management Program (GCDAMP). It includes a summary of accomplishments, modifications to work plans, results, and recommendations related to...
Authors
David J. Topping, Paul E. Grams, Emily C. Palmquist, Joel B. Sankey, Helen C. Fairley, Bridget R. Deemer, Charles B. Yackulic, Theodore Kennedy, Anya Metcalfe, Maria C. Dzul, David Ward, Mariah Aurelia Giardina, Lucas Bair, Thomas M. Gushue, Caitlin M. Andrews, Ronald E. Griffiths, David J. Dean, Keith A. Kohl, Michael J Moran, Nicholas Voichick, Thomas A. Sabol, Laura A. Tennant, Kimberly Dibble, Michael C. Runge
Appendix 1: Lake Powell water quality monitoring Appendix 1: Lake Powell water quality monitoring
No abstract available.
Authors
Bridget R. Deemer, Nicholas Voichick, Thomas A. Sabol, Caitlin M. Andrews, Bryce Anthony Mihalevich
New maps of conductive heat flow in the Great Basin, USA: Separating conductive and convective influences New maps of conductive heat flow in the Great Basin, USA: Separating conductive and convective influences
Geothermal well data from Southern Methodist University and the U.S. Geological Survey (USGS) were used to create maps of estimated background conductive heat flow across the Great Basin region of the western United States. These heat flow maps were generated as part of the USGS hydrothermal and Enhanced Geothermal Systems resource assessment process, and the creation process seeks to...
Authors
Jacob DeAngelo, Erick R. Burns, Emilie Gentry, Joseph F. Batir, Cary Ruth Lindsey, Stanley Paul Mordensky
Inferring geologic structure from gravity anomalies: Proceed with caution Inferring geologic structure from gravity anomalies: Proceed with caution
Characterization of key geologic structures within a study region, such as basin depths, fault offsets, and fault dip, are often derived from gravity data. Gravity modeling of such subsurface geologic structure generally assumes either homogeneous or spatially uncorrelated densities within modeled rock bodies and overlying sediments. This assumption allows modeling to focus on the shape...
Authors
Geoffrey Phelps
During Nearshore Event Experiment (DUNEX): A collaborative community field data collection effort During Nearshore Event Experiment (DUNEX): A collaborative community field data collection effort
The DUring Nearshore Event eXperiment (DUNEX) is an academic, federal agency, and non-government collaborative community experiment supported by and planned under the U.S. Coastal Research Program (USCRP) to study nearshore coastal processes during storms. The motivation for DUNEX is to improve understanding, numerical representation, and prediction of storm processes and impacts; to...
Authors
Mary Cialone, Nicole Elko, Jeff Lillycrop, Hilary F Stockdon, Britt Raubenheimer, Julie D. Rosati
Vulnerability and resilience of ice-rich permafrost to thermal erosion gullying in the Arctic Foothills infrastructure corridor, Alaska Vulnerability and resilience of ice-rich permafrost to thermal erosion gullying in the Arctic Foothills infrastructure corridor, Alaska
The Arctic and its permafrost terrains are inherently dynamic, complex, and sensitive environments. Understanding the past and current changes occurring in these systems is key in predicting future variations, including the response of permafrost to climate change and to surface disturbances resulting from natural processes or anthropogenic activities. Here, we focus on advancing our...
Authors
Eva Anne Stephani, M.M. Darrow, Mikhail Kanevskiy
Ground motion selection for nonlinear response history analyses of concrete dams Ground motion selection for nonlinear response history analyses of concrete dams
Evaluating the seismic performance of a 3D concrete dam using nonlinear response history analysis (NLRHA) requires three orthogonal components of ground acceleration histories, or ground motions (GMs) for brevity. Although much progress has been made for the topic of ground motion selection and modification (GMSM) in the context of multistory buildings, NLRHA of dams requires at least...
Authors
N. Simon Kwong
Three-decades of Rocky Intertidal Photo Series Documenting interannual variability in western Prince William Sound Three-decades of Rocky Intertidal Photo Series Documenting interannual variability in western Prince William Sound
During summer 2021 we re-visited and re-photographed intertidal community scenes at seven rocky intertidal sites in Western Prince William Sound, adding another year of photos to a 32-year monitoring effort. The sites include both previously-oiled and un-oiled locations that were the subject of repeated annual photos beginning in 1990, one year after the March 24, 1989 Exxon Valdez Oil...
Authors
Alan Mearns, Dave Janka, Scott Pegau, Robert Campbell, Brian H. Robinson