Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

164439 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 142, results 3526 - 3550

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Revisiting geophysical interpretations of the Midcontinent Rift below Lake Superior— Insights from GLIMPCE seismic-reflection line C
V. J. S. Grauch, Samuel J. Heller, Laurel G. Woodruff, Esther K. Stewart
2024, Conference Paper, Institute on Lake Superior Geology: proceedings
The 1.1 Ga Midcontinent Rift System (MRS) has been investigated in the Lake Superior region for more than a century. The most influential geophysical data for modern paradigms has come from seismic-reflection profiles collected by the Great Lakes International Multidisciplinary Program on Crustal Evolution (GLIMPCE) in the late 1980s. We...
Why do seismic hazard models worldwide appear to overpredict historical intensity observations?
Leah Marschall Salditch, Molly M. Gallahue, Seth Stein, James S. Neely, Norman A. Abrahamson, Susan E. Hough
2024, Science Advances (10)
Probabilistic seismic hazard assessments (PSHAs) provide the scientific basis for building codes to reduce damage from earthquakes. Despite their substantial impact, little is known about how well PSHA predicts actual shaking. Recent PSHA for California, Japan, Italy, Nepal, and France appear to consistently overpredict historically observed earthquake shaking intensities. Numerical...
Evaluation of chronic effects of potassium chloride and nickel on survival, growth, and reproduction of a unionid mussel (Lampsilis siliquoidea)
Ning Wang, James L. Kunz, Danielle M. Cleveland, Rebecca A. Dorman, Jeffery A. Steevens, Sandy Raimondo, Tom Augspurger, M. Christopher Barnhart
2024, Environmental Toxicology and Chemistry (43) 1097-1111
The ASTM International standard test method for freshwater mussels (E2455‐13) recommends 4‐week toxicity testing with juveniles to evaluate chronic effects on survival and growth. However, concerns remain that the method may not adequately address the sensitivity of mussels to longer term exposures (>4 weeks), particularly in relation to potential reproductive...
Regional seismic velocity model for the U.S. Atlantic and Gulf Coastal Plains based on measured shear wave velocity, sediment thickness, and surface geology
Cassie Gann-Phillips, Ashly Cabas, Chunyang Ji, Chris H. Cramer, James Kaklamanos, Oliver S. Boyd
2024, Earthquake Spectra (40) 1269-1300
The Atlantic and Gulf Coastal Plains (CPs) are characterized by widespread accumulations of low-velocity sediments and sedimentary rock that overlay high-velocity bedrock. Geology and sediment thickness greatly influence seismic wave propagation, but current regional ground motion...
Drought, fire, and archeology in the Jemez Mountains, New Mexico
Anastasia Steffen, Jamie Civitello, Rachel A. Loehman, Robert Parmenter
2024, Intermountain Park Science (2)
In the Jemez Mountains of New Mexico, cultural resources and traditional cultural landscapes are vulnerable to compounded impacts of changing climate and wildfires. Here, we discuss impacts to archeological resources observed in recent, high-severity fires, including at Bandelier National Monument and Valles Caldera National Preserve, and describe an interdisciplinary effort...
Using open-science workflow tools to produce SCEC CyberShake physics-based probabilistic seismic hazard models
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
2024, Frontiers Earth Science Journal (2)
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...
Living with wildfire in Santa Fe: 2021 Data Report
James Meldrum, Julia Goolsby, Colleen Donovan, Porfirio Chavarria, Hannah Brenkert-Smith, Patricia A. Champ, Christopher M. Barth, Carolyn Wagner, Chiara Forrester
2024, 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...
Investigating past earthquakes with coral microatolls
Belle E. Philibosian
2024, Past Global Changes (PAGES) Magazine (32) 22-23
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....
Coastal breeding bird phenology on the dredged-material islands of the Baptiste Collette Bayou, US Army Corps of Engineers, New Orleans District, Louisiana
Michael P. Guilfoyle, Amanda Nicole Anderson, Samuel S. Jackson, Jacob F. Jung, Theodore J. Zenzal Jr., Burton C. Suedel, Jeffrey M. Corbino
2024, Report
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...
Integration of rupture directivity models for the US National Seismic Hazard Model
Kyle Withers, Morgan P. Moschetti, Peter M. Powers, Mark D. Petersen, Robert Graves, Brad T. Aagaard, Annemarie S. Baltay Sundstrom, Nico Luco, Erin A. Wirth, Sanaz Rezaeian, Eric M. Thompson
2024, Earthquake Spectra (40) 1066-1098
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...
Evaluating effectiveness of restoration to address current stressors to riverine fish
Jane S. Rogosch, Hadley I. A. Boehm, Ralph W. Tingley III, Kiah D. Wright, Elisabeth B. Webb, Craig P. Paukert
2024, Freshwater Biology (69) 607-622
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...
Accounting for the fraction of carcasses outside the searched area in the estimation of bird and bat fatalities at wind energy facilities
Daniel Dalthorp, Manuela Huso, Mark Dalthorp, Jeffrey Mintz
2024, Techniques and Methods 7-A3
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...
Adult green sturgeon (Acipenser medirostris) movements in the Sacramento–San Joaquin River Delta, California, December 2020–January 2023
Amy C. Hansen, Summer M. Burdick, Ryan P. Johnson, Robert D. Chase, Michael J. Thomas
2024, Open-File Report 2024-1025
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...
Quantifying the relative importance of biotic and abiotic factors in landscape-based models of stream fish distributions
Christopher A. Custer, Douglas P. Fischer, Geoffrey Smith, Aaron Henning, Megan Kepler Schall, Matthew K. Shank, Timothy A. Wertz, Daniel A. Isermann
2024, Community Ecology (25) 145-196
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 information about...
Late-Quaternary surface displacements on accretionary wedge splay faults in the Cascadia Subduction Zone: Implications for megathrust rupture
Anna Ledeczi, Madeleine C. Lucas, Harold Tobin, Janet Watt, Nathaniel C. Miller
2024, Seismica (2)
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...
NEWTS1.0: Numerical model of coastal Erosion by Waves and Transgressive Scarps
Rose Elizabeth Palermo, J. Taylor Perron, Jason M. Soderblom, Samuel P. D. Birch, Alexander G. Hayes, Andrew D. Ashton
2024, Geoscientific Model Development (17) 3433-3445
Models of rocky-coast erosion help us understand the physical phenomena that control coastal morphology and evolution, infer the processes shaping coasts in remote environments, and evaluate risk from natural hazards and future climate change. Existing models, however, are highly complex, are computationally expensive, and depend on many input parameters; this...
Thick- and thin-skinned contractional styles and the tectonic evolution of the northern Sangre de Cristo Mountains, Colorado, USA
David A. Lindsey, Jonathan Caine
2024, Geosphere (20) 678-710
The Sangre de Cristo Mountains of southern Colorado and northern New Mexico, USA, contain an unusual combination of thick- and thin-skinned contractional structures involving both basement and cover rocks in the Laramide Rocky Mountain foreland. These structures are truncated by down-faulted extensional basins to the east and west. Together with...
Simulation of hydrodynamics and water temperature in a 21-mile reach of the upper Illinois River, Illinois, 2020–22
Michael R. Ament, David C. Heimann
2024, Scientific Investigations Report 2024-5025
This report describes the development of a CE-QUAL-W2 river hydrodynamics and temperature model of a 21-mile reach of the Illinois River including a 3-mile reach of a major tributary, the Fox River. Model outputs consist of streamflow, water velocity, water-surface elevation, and water-temperature time series that can be used to...
Are researchers citing their data? A case study from the U.S. Geological Survey
Grace C. Donovan, Madison Langseth
2024, Data Science Journal (23)
Data citation promotes accessibility and discoverability of data through measures carried out by researchers, publishers, repositories, and the scientific community. This paper examines how a data citation workflow has been implemented by the U.S. Geological Survey (USGS) by evaluating publication and data linkages. Two different methods were used to identify...
Role of edaphic, hydrologic, and land cover variables in determining dissolved organic carbon in Missouri (USA) reservoirs and streams
John R. Jones, Jennifer L. Graham, Daniel V. Obrecht, James D. Harlan, Matthew F. Knowlton, Carol Pollard, Jennifer Parris, Anthony P. Thorpe
2024, Lake and Reservoir Management (40) 177-195
In Missouri, distinct geophysical gradients influence statewide patterns in water quality. Here, we quantify the spatiotemporal variability of dissolved organic carbon (DOC) in reservoirs and streams and the edaphic, hydrologic, and land cover variables that account for cross-system variation. Datasets included statewide inventories collected over decades and studies...
Hiding in plain sight: Federally protected Ringed Map Turtles (Graptemys oculifera) found in a new river system
Brad Glorioso, Will Selman, Brian R. Kreiser, Aidan Ford
2024, Herpetological Conservation and Biology (19) 96-105
Understanding the geographical range of a species is essential to successful conservation and management, but their ranges are not always fully known. Ringed Map Turtles (Graptemys oculifera) have been federally listed as a Threatened species since 1986, and they have long been considered endemic to the Pearl River system...
Challenges creating monarch butterfly management strategies for electric power companies in the United States
Jessica Fox, Kasey Allen, James E. Diffendorfer, Laura Lukens, Wayne E. Thogmartin, Christian Newman
2024, Frontiers in Ecology and Evolution (12)
Returning monarch butterflies (Danaus plexippus) to sustainable levels of abundance will require an array of contributors to protect and restore habitat over broad areas. Due to the diversity and scale of land managed by electric power companies across the monarch range, plus an additional 32 million hectares needed for new...
Global mercury concentrations in biota: Their use as a basis for a global biomonitoring framework
David C. Evers, Josh T. Ackerman, Staffan Akerblom, Dominique Bally, Niladri Basu, Kevin Bishop, Nathalie Bodin, Hans Fredrik Veitberg Braaten, Mark Burton, Paco Bustamante, Celia Y. Chen, John Chetelat, Linroy Christian, Rune Dietz, Paul Drevnick, Collin A. Eagles-Smith, Luis Fernandez, Neil Hammerschlag, Mireille Harmelin-Vivien, Agustin Harte, Eva Kruemmel, Jose Lailson-Brito, Gabriella Medina, Cesar Rodriguez, Iain Stenhouse, Elsie M. Sunderland, Akinori Takeuchi, Timothy Tear, Claudia Vega, Simon Wilson, Pianpian Wu
2024, Ecotoxicology (33) 325-396
An important provision of the Minamata Convention on Mercury is to monitor and evaluate the effectiveness of the adopted measures and its implementation. Here, we describe for the first time currently available biotic mercury (Hg) data on a global scale to improve the understanding of global efforts to reduce the...