Hydrogeologic characterization of the San Antonio Creek Valley watershed, Santa Barbara County, California
Geoffrey Cromwell, Donald S. Sweetkind, Jill N. Densmore, John A. Engott, Whitney A. Seymour, Joshua Larsen, Christopher P. Ely, Christina L. Stamos, Claudia C. Faunt
2022, Scientific Investigations Report 2022-5001
The San Antonio Creek Valley watershed (SACVW) is located in western Santa Barbara County, about 15 miles south of Santa Maria and 55 miles north of Santa Barbara, California. The SACVW is about 135 square miles and encompasses the San Antonio Creek Valley groundwater basin; the SACVW is separated from...
Hydrologic and geochemical characterization of the Petaluma River watershed, Sonoma County, California
Jonathan A. Traum, Nicholas F. Teague, Donald S. Sweetkind, Tracy Nishikawa
2022, Scientific Investigations Report 2022-5009
Executive SummaryThe objectives of the study are to (1) develop an updated assessment of the hydrogeology and geochemistry of the Petaluma valley watershed (PVW) and (2) develop an integrated hydrologic model for the PVW. The purpose of this report is to describe the conceptual model of the hydrologic, hydrogeologic, and water-quality...
The impacts of mangrove range expansion on wetland ecosystem services in the southeastern United States: Current understanding, knowledge gaps, and emerging research needs
Michael Osland, A. Randall Hughes, Anna R. Armitage, Steven B. Scyphers, Just Cebrian, Savannah H. Swinea, Christine C. Shepard, Michael S. Allen, Laura Feher, James A. Nelson, Cherie L. O’Brien, Colt R. Sanspree, Delbert L. Smee, Caitlin M. Snyder, Andrew P. Stetter, Philip W. Stevens, Kathleen M. Swanson, Lauren H. Williams, Janell M. Brush, Joseph Marchionno, Remi Bardou
2022, Global Change Biology (28) 3163-3187
Climate change is transforming ecosystems and affecting ecosystem goods and services. Along the Gulf of Mexico and Atlantic coasts of the southeastern United States, the frequency and intensity of extreme freeze events greatly influences whether coastal wetlands are dominated by freeze-sensitive woody plants (mangrove forests) or freeze-tolerant grass-like plants (salt...
Bathymetric and velocimetric surveys at highway bridges crossing the Missouri River near Kansas City, Missouri, August 2019, August 2020, and October 2020
Richard J. Huizinga
2022, Scientific Investigations Report 2021-5098
Bathymetric and velocimetric data were collected by the U.S. Geological Survey, in cooperation with the Missouri Department of Transportation, near 9 bridges at 8 highway crossings of the Missouri River near Kansas City, Missouri, on August 13–14, 2019. A multibeam echosounder mapping system was used to obtain channel-bed elevations for...
A conterminous USA-scale map of relative tidal marsh elevation
James R. Holmquist, Lisamarie Windham-Myers
2022, Estuaries and Coasts (45) 1596-1614
Tidal wetlands provide myriad ecosystem services across local to global scales. With their uncertain vulnerability or resilience to rising sea levels, there is a need for mapping flooding drivers and vulnerability proxies for these ecosystems at a national scale. However, tidal wetlands in the conterminous USA are diverse with differing...
Tracking spatial regimes in animal communities: Implications for resilience-based management
Caleb Powell Roberts, Daniel R. Uden, Craig R. Allen, David G. Angeler, Larkin A. Powell, Brady W Allred, Matthew O. Jones, Jeremy D Maestas, Dirac Twidwell
2022, Ecological Indicators (136)
Spatial regimes (the spatial extents of ecological states) exhibit strong spatiotemporal order as they expand or contract in response to retreating or encroaching adjacent spatial regimes (e.g., woody plant invasion of grasslands) and human management (e.g., fire treatments). New methods enable tracking spatial regime boundaries via vegetation landcover data, and...
Condition of macroinvertebrate communities in the Buffalo River Area of Concern following sediment remediation
Scott D. George, Brian T. Duffy, Barry P. Baldigo, Damianos Skaros, Alexander J. Smith
2022, Journal of Great Lakes Research (48) 183-194
The lower 10 km of the Buffalo River, a tributary to Lake Erie, was designated as an Area of Concern (AOC) in 1987 through the Great Lakes Water Quality Agreement because sediment contamination and habitat alteration from past industrialization caused several Beneficial Use Impairments (BUIs). Extensive remediation efforts conducted between 2011 and...
Forecasting species distributions: Correlation does not equal causation
Alexej Sirén, Christopher Sutherland, Ambarish V. Karmalkar, Matthew Duveneck, Toni Lyn Morelli
2022, Diversity and Distributions (28) 756-769
AimIdentifying the mechanisms influencing species' distributions is critical for accurate climate change forecasts. However, current approaches are limited by correlative models that cannot distinguish between direct and indirect effects.LocationNew Hampshire and Vermont, USA.MethodsUsing causal and correlational models and new theory on...
Modeling subsurface performance of a geothermal reservoir using machine learning
Dmitry Duplyakin, Koenraad F Beckers, Drew L. Siler, Michael J. Martin, Henry E. Johnston
2022, Energies (15)
Geothermal power plants typically show decreasing heat and power production rates over time. Mitigation strategies include optimizing the management of existing wells—increasing or decreasing the fluid flow rates across the wells—and drilling new wells at appropriate locations. The latter is expensive, time-consuming, and subject to many engineering...
Modeling of barrier breaching during Hurricanes Sandy and Matthew
Christie Hegermiller, John C. Warner, Maitane Olabarrieta, Christopher R. Sherwood, Tarandeep S. Kalra
2022, JGR-Earth Surface (127)
Physical processes driving barrier island change during storms are important to understand to mitigate coastal hazards and to evaluate conceptual models for barrier evolution. Spatial variations in barrier island topography, landcover characteristics, and nearshore and back-barrier hydrodynamics can yield complex morphological change that requires models of increasing resolution and physical...
Influences of channel and floodplain modification on expansion of woody vegetation into Catahoula Lake, Louisiana, USA
R.F. Keim, L. Dugue, K.D. Latuso, S. Joshi, Sammy L. King, F.L. Willis
2022, Earth Surface Processes and Landforms (47) 1466-1479
Ecosystem structure of wetlands in managed floodplains depends on hydrological processes controlled by geomorphology and water management. Overlapping effects of direct modifications and geomorphic adjustments to management can combine to trigger changes to floodplain ecosystem structure. We examined the case of woody vegetation encroaching into the depressional Catahoula Lake, Louisiana,...
The potential of wave energy conversion to mitigate coastal erosion from hurricanes
Cigdem Ozkan, Talea Mayo, Davina Passeri
Rafael Morales, editor(s)
2022, Journal of Marine Science and Engineering (10) 1-26
Wave energy conversion technologies have recently attracted more attention as part of global efforts to replace fossil fuels with renewable energy resources. While ocean waves can provide renewable energy, they can also be destructive to coastal areas that are often densely populated and vulnerable to coastal erosion. There have been...
Testing the potential of streamflow data to predict spring migration of an ungulate herds
Jason S. Alexander, Marissa L. Murr, Cheryl A. Eddy-Miller
Stefano Grignolio, editor(s)
2022, PLoS ONE (17) 1-18
In mountainous and high latitude regions, migratory animals exploit green waves of emerging vegetation coinciding with rising daily mean temperatures initiating snowmelt across the landscape. Snowmelt also causes rivers and streams draining these regions to swell, a process referred to as to as the ‘spring pulse.’ Networks of streamgages measuring...
Oxygen isotopes of land snail shells in high latitude regions
Catherine Nield, Yurena Yanes, Jeffrey S. Pigati, Jason A. Rech, Ted von Proschwitz, Jeffrey C. Nekola
P. Rioual, editor(s)
2022, Quaternary Science Reviews (279) 1-15
The present study investigates the environmental significance of the oxygen isotopic composition of several modern land snail species collected along two north-to-south transects in Alaska and Scandinavia at latitudes between 60 and 70 °N. We tested the hypothesis that land snail...
Earthquake early warning for estimating floor shaking levels of tall buildings
S. Farid Ghahari, Annemarie S. Baltay Sundstrom, Mehmet Celebi, Grace Alexandra Parker, Jeffrey J. McGuire, Ertugrul Taciroglu
2022, Bulletin of the Seismological Society of America (112) 820-849
This article investigates methods to improve earthquake early warning (EEW) predictions of shaking levels for residents of tall buildings. In the current U.S. Geological Survey ShakeAlert EEW system, regions far from an epicenter will not receive alerts due to low predicted ground‐shaking intensities. However, residents...
Age-specific survival rates, causes of death, and allowable take of golden eagles in the western United States
Brian Milsap, Guthrie S. Zimmerman, William L. Kendall, Joseph G. Barnes, Melissa A. Braham, Bryan E Bedrosian, Douglas A. Bell, Peter H. Bloom, Ross H. Crandall, Robert Domenech, Daniel Driscoll, Adam E. Duerr, Rick Gerhardt, Samantha E.J. Gibbs, Alan R. Harmata, Kenneth Jacobson, Todd E. Katzner, Robert N. Knight, J. Michael Lockhart, Carol McIntyre, Robert K. Murphy, Steven J. Slater, Brian W. Smith, Jeff P. Smith, Dale W. Stahlecker, James W. Watson
2022, Ecological Applications (32)
In the United States, the Bald and Golden Eagle Protection Act prohibits take of golden eagles (Aquila chrysaetos) unless authorized by permit, and stipulates that all permitted take must be sustainable. Golden eagles are unintentionally killed in conjunction with many lawful activities (e.g., electrocution on power poles, collision with wind...
Hydrology of the Yucaipa groundwater subbasin: Characterization and integrated numerical model, San Bernardino and Riverside Counties, California
Geoffrey Cromwell, Ayman H. Alzraiee, editor(s)
2022, Scientific Investigations Report 2021-5118
Executive SummaryWater management in the Santa Ana River watershed in San Bernardino and Riverside Counties in southern California is a complex task with various water purveyors navigating geographic, geologic, hydrologic, and political challenges to provide a reliable water supply to stakeholders. As the population has increased throughout southern California, so...
Ready for real time: Performance of Global Navigation Satellite System in 2019 Mw 7.1 Ridgecrest, California, rapid response products
Dara Elyse Goldberg, Kirstie Lafon Haynie
2022, Seismological Research Letters (93) 517-530
Global Navigation Satellite Systems (GNSSs) have undergone notable advancement in the last few decades, leading to the availability of a dataset with capabilities well beyond its original intended purpose. The proliferation of high‐rate (1 Hz or greater) GNSS receivers in areas of seismological interest now allows for routine consideration of dynamic...
Kinematic slip model of the July 8, 2021 M6.0 Antelope Valley, California, earthquake
Frederick Pollitz, Charles Wicks, William M Hammond
2022, The Seismic Record (2) 20-28
We present a kinematic slip model of the July 8, 2021 Antelope Valley earthquake from a finite-source inversion based on regional seismic waveforms and static offsets from GPS and InSAR. Seismic waveforms are employed at 6s dominant period out to 100 km from the epicenter, and the combined GPS and...
Redundancy analysis reveals complex den use patterns by eastern spotted skunks, a conditional specialist
Emily D. Thorne, W. Mark Ford
2022, Ecosphere (13)
Wildlife managers tasked with understanding habitat and resource selection at the population level attempt to characterize patterns in nature that aid and inform conservation. Resource selection functions (RSFs), such as discrete choice analyses, are the standard convention to characterize the effects of habitat attributes on resource selection patterns. These tools...
Groundwater hydrology in the area of Savannah and Gunstocker Creeks in northeastern Hamilton, southern Meigs, and northwestern Bradley Counties, Tennessee, 2007–09
John K. Carmichael
2022, Scientific Investigations Report 2021-5135
The U.S. Geological Survey, in cooperation with the Savannah Valley Utility District, evaluated the groundwater hydrology of the Valley and Ridge carbonate rock aquifer in northeastern Hamilton, southern Meigs, and northwestern Bradley Counties, Tennessee, from 2007 through 2009. The evaluation included, and built on, the results of test drilling conducted...
Photomosaics and logs associated with study of West Napa Fault at Ehlers Lane, north of Saint Helena, California
Belle E. Philibosian, Robert R. Sickler, Carol S. Prentice, Alexandra J. Pickering, Patrick Gannon, Kiara N. Broudy, Shannon A. Mahan, Jazmine N. Titular, Eli A. Turner, Cameron Folmar, Sierra F. Patterson, Emilie E. Bowman
2022, Open-File Report 2022-1002
The West Napa Fault has previously been mapped as extending ~45 kilometers (km) from northern Vallejo to southern Saint Helena, California, dominantly running along the western edge of Napa Valley. A zone of fault strands (some previously unmapped) along a ~15-km section of the fault ruptured during the 2014 magnitude...
Terrestrial ecosystem modeling with IBIS: Progress and future vision
Jinxun Liu, Xuehe Lu, Qiuan Zhu, Wenping Yuan, Quanzhi Yuan, Zhen Zhang, Qingxi Guo, Carol Deering
2022, Journal of Resources and Ecology (13) 2-16
Dynamic Global Vegetation Models (DGVM) are powerful tools for studying complicated ecosystem processes and global changes. This review article synthesizes the developments and applications of the Integrated Biosphere Simulator (IBIS), a DGVM, over the past two decades. IBIS has been used to evaluate carbon, nitrogen, and water cycling in terrestrial...
A novel regression method for harmonic analysis of time series
Qiang Zhou, Zhe Zhu, George Z. Xian, Congcong Li
2022, ISPRS Journal of Photogrammetry and Remote Sensing (185) 48-61
Harmonic analysis of time series is an important technique in remote sensing to reveal seasonal land surface dynamics. However, frequency selection in the harmonic analysis is often difficult because high-frequency components are useful for delineating seasonal dynamics but sensitive to noise and gaps in time series. On the other hand,...
A model-independent tool for evolutionary constrained multi-objective optimization under uncertainty
Jeremy White, Matthew Knowling, Michael N. Fienen, Adam Siade, Otis Rea, Guillermo Martinez
2022, Environmental Modelling & Software (149)
An open-source tool has been developed to facilitate constrained single- and multi-objective optimization under uncertainty (CMOU) analyses. The tool uses the well-known PEST interface protocols to communicate with the underlying forward simulation, making it non-intrusive. The tool contains a built-in parallel...
