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Using open-science workflow tools to produce SCEC CyberShake physics-based probabilistic seismic hazard models Using open-science workflow tools to produce SCEC CyberShake physics-based probabilistic seismic hazard models
The Statewide (formerly Southern) California Earthquake Center (SCEC) conducts multidisciplinary earthquake system science research that aims to develop predictive models of earthquake processes, and to produce accurate seismic hazard information that can improve societal preparedness and resiliency to earthquake hazards. As part of this program, SCEC has developed the CyberShake...
Authors
Scott Callaghan, Phillip J. Maechling, Fabio Silva, Mei-Hui Su, Kevin R. Milner, Robert Graves, Kim Olsen, Yifeng Cui, Karan Vahi, Albert Kottke, Christine A Goulet, Ewa Deelman, Tom Jordan, Yehuda Ben-Zion
Living with wildfire in Santa Fe: 2021 Data Report Living with wildfire in Santa Fe: 2021 Data Report
The City of Santa Fe is well known for arts, food, and architecture, but it also faces significant risk of wildfire. In 2020, the City of Santa Fe partnered with the Wildfire Research (WiRē) team with the goal of better understanding the needs of residents within the study area and their level of support for wildfire risk mitigation programs. The resulting project centers on two types of...
Authors
James R. Meldrum, Julia Goolsby, Colleen Donovan, Porfirio Chavarria, Hannah Brenkert-Smith, Patricia A. Champ, Christopher M. Barth, Carolyn Wagner, Chiara Forrester
Investigating past earthquakes with coral microatolls Investigating past earthquakes with coral microatolls
Intertidal corals (microatolls) preserve evidence of past uplift or subsidence with annual precision. Microatoll records are particularly useful along subduction zones, and can reveal past earthquake ruptures at a level of detail that is ordinarily limited to the instrumental era.
Authors
Belle E. Philibosian
Coastal breeding bird phenology on the dredged-material islands of the Baptiste Collette Bayou, US Army Corps of Engineers, New Orleans District, Louisiana Coastal breeding bird phenology on the dredged-material islands of the Baptiste Collette Bayou, US Army Corps of Engineers, New Orleans District, Louisiana
Coastal bird populations in North America have experienced significant population declines over the past four decades, and many species have become dependent upon human-made islands and other sediment-based habitats created through dredged material deposition. We monitored the breeding phenology of coastal bird populations utilizing dredged-material islands and open depositional areas in...
Authors
Michael P. Guilfoyle, Amanda Nicole Anderson, Samuel S. Jackson, Jacob F. Jung, Theodore J. Zenzal, Burton C. Suedel, Jeffrey M. Corbino
Evaluating effectiveness of restoration to address current stressors to riverine fish Evaluating effectiveness of restoration to address current stressors to riverine fish
River restoration programmes with the goal of conserving and rehabilitating inland fishes have a multi-decadal history, but evaluation and synthesis of past restoration actions have been limited by a lack of monitoring and reporting. Given that calls for both monitoring and systematic reviews of restoration have increased, we were interested in the influence that restoration has had on...
Authors
Jane S. Rogosch, Hadley I. A. Boehm, Ralph W. Tingley, Kiah D. Wright, Elisabeth B. Webb, Craig P. Paukert
Integration of rupture directivity models for the US National Seismic Hazard Model Integration of rupture directivity models for the US National Seismic Hazard Model
Several rupture directivity models (DMs) have been developed in recent years to describe the near-source spatial variations in ground motion amplitudes related to propagation of rupture along the fault. We recently organized an effort towards incorporating these directivity effects into the USGS National Seismic Hazard Model (NSHM), by first evaluating the community's work and potential...
Authors
Kyle B. Withers, Morgan P. Moschetti, Peter M. Powers, Mark D. Petersen, Robert Graves, Brad T. Aagaard, Annemarie S. Baltay, Nico Luco, Erin A. Wirth, Sanaz Rezaeian, Eric M. Thompson
Manganese-rich sandstones as an indicator of ancient oxic lake water conditions in Gale crater, Mars Manganese-rich sandstones as an indicator of ancient oxic lake water conditions in Gale crater, Mars
Manganese has been observed on Mars by the NASA Curiosity rover in a variety of contexts and is an important indicator of redox processes in hydrologic systems on Earth. Within the Murray formation, an ancient primarily fine-grained lacustrine sedimentary deposit in Gale crater, Mars, have observed up to 45× enrichment in manganese and up to 1.5× enrichment in iron within coarser grained...
Authors
Patrick J. Gasda, Nina L. Lanza, Pierre-Yves Meslin, Sarah N. Lamm, Agnes Cousin, Ryan Anderson, Olivier Forni, Elizabeth D. Swanner, Jonas L'Haridon, Jens Frydenvang, Nancy Thomas, Nathan Stein, Woody W. Fischer, Joel A. Hurowitz, Dawn Sumner, Frances Rivera-Hernandez, Laura Crossey, Ann M. Ollila, Ari Essunfeld, Horton E. Newsom, Benton C. Clark, Roger C. Wiens, Olivier Gasnault, Sam M. Clegg, Sylvestre Maurice, Dorothea Delapp, A. Reyes-Newell
Accounting for the fraction of carcasses outside the searched area in the estimation of bird and bat fatalities at wind energy facilities Accounting for the fraction of carcasses outside the searched area in the estimation of bird and bat fatalities at wind energy facilities
Accurate estimation of bird and bat mortality at wind energy facilities requires accounting for carcasses that lie outside the search plots because they lie beyond the search radius or in areas within the search radius that remain unsearched due to sub-optimal search conditions such as thick vegetation, rough or dangerous ground, water, or restricted access to the land. However, carcass...
Authors
Daniel Dalthorp, Manuela Huso, Mark Dalthorp, Jeffrey Mintz
Adult green sturgeon (Acipenser medirostris) movements in the Sacramento–San Joaquin River Delta, California, December 2020–January 2023 Adult green sturgeon (Acipenser medirostris) movements in the Sacramento–San Joaquin River Delta, California, December 2020–January 2023
The U.S. Army Corps of Engineers American River Watershed Common Features project (ACRF) seeks to reduce flood risk for the City of Sacramento, California, and surrounding areas. The project includes levee-remediation measures to address seepage, stability, erosion, and height concerns as well as the widening of the Sacramento Weir and Bypass. The project reach is in the lower extent of...
Authors
Amy C. Hansen, Summer M. Burdick, Ryan P. Johnson, Robert D. Chase, Michael J. Thomas
Quantifying the relative importance of biotic and abiotic factors in landscape-based models of stream fish distributions Quantifying the relative importance of biotic and abiotic factors in landscape-based models of stream fish distributions
Lotic fish species distributions are frequently predicted using remotely sensed habitat variables that characterize the adjacent landscape and serve as proxies for instream habitat. Recent advancements in statistical methodology, however, allow for leveraging fish assemblage data when predicting distributions. This is important because assemblage composition likely provides better...
Authors
Christopher A. Custer, Douglas P. Fischer, Geoffrey Smith, Aaron Henning, Megan Kepler Schall, Matthew K. Shank, Timothy A. Wertz, Daniel A. Isermann
Late-Quaternary surface displacements on accretionary wedge splay faults in the Cascadia Subduction Zone: Implications for megathrust rupture Late-Quaternary surface displacements on accretionary wedge splay faults in the Cascadia Subduction Zone: Implications for megathrust rupture
Because splay faults branch at a steep dip angle from the plate-boundary décollement in an accretionary wedge, their coseismic displacement can potentially result in larger tsunamis with distinct characteristics compared to megathrust-only fault ruptures, posing an enhanced hazard to coastal communities. Elsewhere, there is evidence of coseismic slip on splay faults during many of the...
Authors
Anna Ledeczi, Madeleine C. Lucas, Harold Tobin, Janet Watt, Nathaniel C. Miller
Ancient permafrost and past permafrost in the Northern Hemisphere Ancient permafrost and past permafrost in the Northern Hemisphere
The existence and dynamics of permafrost depend on the prevailing climate conditions. Therefore, the study of ancient permafrost (existing since the Pleistocene or earlier) and past permafrost (Late Pleistocene or older permafrost that no longer exists) and their dynamics may inform about climate and environmental changes in the past. In this chapter, we provide a brief overview of...
Authors
Thomas Opel, Pascal Bertran, Guido Grosse, Miriam C. Jones, Marc Luetscher, Lutz Schirrmeister, Kim Stadelmeier, Alexandra Veremeeva