Continuous stream discharge, salinity, and associated data collected in the lower St. Johns River and its tributaries, Florida, 2020
Patrick J. Ryan
2022, Open-File Report 2022-1024
The U.S. Army Corps of Engineers, Jacksonville District, is deepening the St. Johns River channel in Jacksonville, Florida, from 40 to 47 feet along 13 miles of the river channel beginning at the mouth of the river at the Atlantic Ocean, in order to accommodate larger, fully loaded cargo vessels....
Water quality in the Missouri River alluvial aquifer near the Independence, Missouri, well field, 1997–2018
Robert T. Kay, Heather M. Krempa, Katie M. Hulsey
2022, Scientific Investigations Report 2022-5027
Groundwater-quality data collected from 1997 through 2018 from 68 monitoring locations open to the Missouri River alluvial aquifer (hereafter referred to as the “alluvial aquifer”) near the Independence, Missouri, well field were analyzed by the U.S. Geological Survey, in cooperation with the City of Independence, Missouri. This analysis was done...
Aqueous geochemistry of waters and hydrogeology of alluvial deposits, Pinnacles National Park, California
Kathleen Scheiderich, Claire R. Tiedeman, Paul A. Hsieh
2022, Open-File Report 2022-1026
A cooperative study between the National Park Service (NPS) and the U.S. Geological Survey (USGS) characterized groundwater quality and hydrogeology in parts of Pinnacles National Park. The water-quality investigation assessed the geochemistry of springs, wells, surface water, and precipitation and analyzed geochemistry of rock formations that affect the water chemistry...
2022 Emergency Assistance Act — USGS recovery activities
Jo Ellen Hinck, Joseph Stachyra
2022, Fact Sheet 2022-3031
The Extending Government Funding and Delivering Emergency Assistance Act (Public Law 117-43) was enacted on September 30, 2021. The U.S. Geological Survey received $26.3 million in supplemental funding to repair and replace facilities and equipment, collect high-resolution elevation data, and complete scientific assessments to support direct recovery and rebuilding decisions...
Combining process-based and data-driven approaches to forecast beach and dune change
Michael Itzkin, Laura J. Moore, Peter Ruggiero, Paige A. Hovenga, Sally D. Hacker
2022, Environmental Modelling & Software (153)
Producing accurate hindcasts and forecasts with coupled models is challenging due to complex parameterizations that are difficult to ground in observational data. We present a calibration workflow that utilizes a series of machine learning algorithms paired with Windsurf, a coupled beach-dune model (Aeolis, the Coastal Dune Model, and XBeach), to produce hindcasts and forecasts of...
Hot spots and hot moments in the Critical Zone: Identification of and incorporation into reactive transport models
Bhavna Arora, Martin Briggs, Jay P. Zarnetske, James Stegen, Jesus Gomez-Velez, D. Dwivedi
2022, Book chapter, Biogeochemistry of the Critical Zone
Biogeochemical processes are often spatially discrete (hot spots) and temporally isolated (hot moments) due to variability in controlling factors like hydrologic fluxes, lithological characteristics, bio-geomorphic features, and external forcing. Although these hot spots and hot moments (HSHMs) account for a high percentage of carbon, nitrogen and nutrient cycling within the...
Velocity modeling of supercritical pore fluids through porous media under reservoir conditions with applications for petroleum secondary migration and carbon sequestration plumes
Lauri A. Burke
2022, SEG-AAPG Interpretation (10) SG1-SG9
Computational methods to characterize secondary migration in porous media traditionally rely on fluid transport equations with assumptions of time invariance, such as flowpath modeling of buoyancy vectors, statistical percolation algorithms, capillary pressure curves, or a form of Darcy’s Law which presumes instantaneous fluid transport. However, in petroleum systems modeling, the...
Revealing active Mars with HiRISE digital terrain models
Sarah S. Sutton, Matthew Chojnacki, Alfred S. McEwen, Randolph L. Kirk, Colin M. Dundas, Ethan I Schaefer, Susan J. Conway, Serina Diniega, Ganna Portyankina, Margaret E. Landis, Nicole F Baugh, Rodney Heyd, Shane Byrne, Livio L. Tornabene, Lujendra Ojha, Christopher W. Hamilton
2022, Remote Sensing (14)
Many discoveries of active surface processes on Mars have been made due to the availability of repeat high-resolution images from the High Resolution Imaging Science Experiment (HiRISE) onboard the Mars Reconnaissance Orbiter. HiRISE stereo images are used to make digital terrain models (DTMs) and orthorectified images (orthoimages)....
Use of ‘accommodation space’ in tidal wetlands. A commentary on Kerrylee Rogers’ ‘Accommodation space as a framework for assessing the response of mangroves to relative sea-level rise’
Ken Krauss
2022, Singapore Journal of Tropical Geography (42) 184-189
No abstract available....
Decadal trends of mercury cycling and bioaccumulation within Everglades National Park
Sarah E. Janssen, Michael T. Tate, Brett Poulin, David P. Krabbenhoft, John F DeWild, Jacob M. Ogorek, Matthew S. Varonka, William H. Orem, Jeffrey D Kline
2022, Science of the Total Environment (838)
Mercury (Hg) contamination has been a persistent concern in the Florida Everglades for over three decades due to elevated atmospheric deposition and the system's propensity for methylation and rapid bioaccumulation. Given declines in atmospheric Hg concentrations in the conterminous United States and efforts to...
Global cycling and climate effects of aeolian dust controlled by biological soil crusts
Rodriguez-Caballero, T Stanelle, S Egerer, Yang Cheng, H. E. Suess, Y Canton, Jayne Belnap, M O Andreae, I Tegen, C Reick, Ulrich Poschl, B. Weber
2022, Nature Geoscience (15) 458-463
Biological soil crusts (biocrusts) cover ~12% of the global land surface. They are formed by an intimate association between soil particles, photoautotrophic and heterotrophic organisms, and they effectively stabilize the soil surface of drylands. Quantitative information on the impact of biocrusts on the global cycling and climate effects of aeolian...
Effective conservation of desert riverscapes requires protection and restoration of in-stream flows with rehabilitation approaches tailored to water availability
Casey A. Pennock, Phaedra E. Budy, William W. Macfarlane
2022, Frontiers in Environmental Science (10)
Desert riverscape rehabilitation practitioners must contend with compounding effects of increasing human water demand, persistent drought, non-native species establishment, and climate change, which further stress desert riverine ecosystems such as rivers in the Colorado River basin, United States. Herein, we provide our perspective on the importance of natural flows, large...
Assessing private well contamination in Grant, Iowa, and Lafayette Counties, Wisconsin: The southwest Wisconsin groundwater and geology study
Joel P. Stokdyk, Mark A. Borchardt, Aaron D. Firnstahl, Ken Bradbury, Moe Muldoon, Burney A Kieke
2022, Report
Rural residents of Grant, Iowa, and Lafayette Counties in Wisconsin rely on private wells for their water. Contaminants like nitrate and bacteria from septic systems, fertilizer, and manure can contaminate the groundwater that residents use. Groundwater is vulnerable to contamination where the soil layer is thin and the bedrock is...
Friction in clay-bearing faults increases with the ionic radius of interlayer cations
Hiroshi Sakuma, David A. Lockner, John Solum, Nick Davatzes
2022, Communications Earth & Environment (3)
Smectite can dramatically reduce the strength of crustal faults and may cause creep on natural faults without great earthquakes; however, the frictional mechanism remains unexplained. Here, our shear experiments reveal systematic increase in shear strength with the increase of the ionic radius of interlayer cations among...
Hidden in plain sight: Detecting invasive species when they are morphologically similar to native species
Samuel R Fisher, Robert N. Fisher, Gregory B. Pauly
2022, Frontiers in Conservation Science (3)
Early detection and rapid response (EDRR) can help mitigate and control invasive species outbreaks early on but its success is dependent on accurate identification of invasive species. We evaluated a novel outbreak in San Diego County, California of the Sonoran Spotted Whiptail (Aspidoscelis sonorae) in order to confirm their...
Machine learned daily life history classification using low frequency tracking data and automated modelling pipelines: Application to North American waterfowl
Cory T. Overton, Michael L. Casazza, Joseph Bretz, Fiona McDuie, Elliott Matchett, Desmond Alexander Mackell, Austen Lorenz, Andrea Mott, Mark P. Herzog, Josh T. Ackerman
2022, Movement Ecology (10)
BackgroundIdentifying animal behaviors, life history states, and movement patterns is a prerequisite for many animal behavior analyses and effective management of wildlife and habitats. Most approaches classify short-term movement patterns with high frequency location or accelerometry data. However, patterns reflecting life history across longer time scales can have...
Wildlife associates of nine-banded armadillo (Dasypus novemcinctus) burrows in Arkansas
Brett Alexander DeGregorio, John T. Veon, Andrhea Massey
2022, Ecology and Evolution (12)
The Nine-banded Armadillo (Dasypus novemcinctus) is a widespread burrowing species with an expanding geographic range across the southeastern and midwestern United States. Armadillos dig numerous, large burrows within their home ranges and these burrows are likely used by a diverse suite of wildlife species as has been reported for other...
Attraction, entrance, and passage efficiency of Arctic Grayling, trout, and suckers at Denil fishways in the Big Hole River basin, Montana
Ben Triano, Kevin M. Kappenman, Thomas E. McMahon, Matt Blank, Kurt C. Heim, Albert E. Parker, Alexander V. Zale, Nolan Platt, Katey Plymesser
2022, Transactions of the American Fisheries Society (151) 453-473
The Big Hole River basin in southwestern Montana supports the only indigenous, self‐sustaining fluvial population of Arctic Grayling Thymallus arcticus in the conterminous United States, but the basin is fragmented by numerous low‐head irrigation diversion dams. Denil fishways at 63 diversion dams provide Arctic Grayling and other fishes opportunities for year‐round access...
Credit where credit is due
Mark A. Parsons, Daniel S. Katz, Madison Langseth, Hampapuram Ramapriyan, Sarah Ramdeen
2022, Eos Science News
Credit is the currency of science. Scientists are evaluated and promoted in their jobs and professional communities on the basis of their recognized contributions to science. Unlike a financial contribution, a scientific contribution is difficult to measure. Traditionally, credit for scientific contributions has been given through authorship and citations in...
Geologic maps of the Stephenson and Winchester quadrangles, Frederick and Clarke Counties, Virginia, and Inwood and White Hall quadrangles, Berkeley and Jefferson Counties, West Virginia
David J. Weary, Daniel H. Doctor, Randall C. Orndorff
2022, Scientific Investigations Map 3487
The study area consists of four contiguous 7.5-minute quadrangles and is located in Frederick and Clarke Counties, Virginia, and Berkeley and Jefferson Counties, West Virginia. The individual quadrangles are Stephenson, Winchester, Inwood, and White Hall. The study area lies within the Great Valley subprovince of the Valley and Ridge physiographic...
Earthquakes indicated stress field change during the 2006 unrest of Augustine Volcano, Alaska
Yan Zhan, Diana Roman, Helene Le Mevel, John Power
2022, Geophysical Research Letters (49)
To examine controls on the local stress field at Augustine Volcano, Alaska, before its 2006 eruption, we calculated fault plane solutions for volcano-tectonic earthquakes from 2002 to 2006. The P-axis orientation was first aligned to the regional maximum compression (NW) and then rotated by about 90° (perpendicular to the dike...
Value of information: Exploring behavioral and social factors
Pierre D. Glynn, Scott J. Chiavacci, Charles Rhodes, Jennifer Helgeson, Carl D. Shapiro, Crista L. Straub
2022, Frontiers in Environmental Science (10)
There is growing interest within and beyond the economics community in assessing the value of information (VOI) used in decision making. VOI assessments often do not consider the complex behavioral and social factors that affect the perception, valuation, and use of information by individuals and groups. Additionally, VOI assessments frequently...
Evaluating aromatization of solid bitumen generated in the presence and absence of water: Implications for solid bitumen reflectance as a thermal proxy
Paul C. Hackley, Aaron M. Jubb, Patrick L. Smith, Ryan J. McAleer, Brett J. Valentine, Javin J. Hatcherian, Palma J. Botterell, Justin E. Birdwell
2022, International Journal of Coal Geology (258)
Geological models for petroleum generation suggest thermal conversion of oil-prone sedimentary organic matter in the presence of water promotes increased liquid saturate yield, whereas absence of water causes formation of an aromatic, cross-linked solid <a class="topic-link" title="Learn more about bitumen...
Using a multi-model ensemble approach to determine biodiversity hotspots with limited occurrence data in understudied areas: An example using freshwater mussels in México
Alexander H. Kiser, Kevin S. Cummings, Jeremy S. Tiemann, Chase H. Smith, Nathan A. Johnson, Roel R. Lopez, Charles R. Randklev
2022, Ecology and Evolution (15)
Species distribution models (SDMs) are an increasingly important tool for conservation particularly for difficult-to-study locations and with understudied fauna. Our aims were to (1) use SDMs and ensemble SDMs to predict the distribution of freshwater mussels in the Pánuco River Basin in Central México; (2) determine...
Long-term effects of prescribed fire on large tree growth in mixed conifer forests at Lassen Volcanic National Park, California
Zachary Wenderott, Phillip J. van Mantgem, Micah Wright, Calvin A. Farris, Rosemary L. Sherriff
2022, Forest Ecology and Management (517)
Prescribed fire in dry coniferous forests of the western U.S. is used to reduce fire hazards. How large, old trees respond to these treatments is an important management consideration. Growth is a key indicator of residual tree condition, which can be predictive of mortality and...
