Water-budget accounting for tropical regions model (WATRMod) documentation
Delwyn S. Oki
2022, Open-File Report 2022-1013
Regional groundwater recharge commonly is estimated using a threshold-type water-budget approach in which groundwater recharge is assumed to occur when water in the plant-root zone exceeds the soil’s moisture storage capacity. A water budget of the plant-soil system accounts for water inputs (rainfall, fog interception, irrigation, septic-system leachate, and other...
Lake Ontario April prey fish survey results and Alewife assessment, 2022
Brian Weidel, Lee F G Gutowsky, Jessica Goretzke, Jeremy Holden, Scott P. Minihkeim
2022, Report
The annual Lake Ontario April bottom trawl survey and Alewife, Alosa pseudoharengus, population assessment provide science to inform management decisions related to predator-prey balance and fish community dynamics. The 2022 survey was conducted from March 31 to April 26, included 235 trawls in the main lake and embayments, and sampled...
Late Paleozoic flexural extension and overprinting shortening in the southern Ozark dome, Arkansas, USA: Evolving fault kinematics in the foreland of the Ouachita orogen
Mark R. Hudson, Kenzie J. Turner
2022, Tectonics (41)
Faults and folds on the southern flank of the Ozark dome in northern Arkansas, USA, record flexural extension in a foreland area followed by shortening in response to the late Paleozoic Ouachita orogeny. Map-scale structures and an analysis of fault-slip data collected systematically during geologic mapping demonstrate that most deformation...
Evolving magma temperature and volatile contents over the 2008–2018 summit eruption of Kīlauea Volcano
Joshua Allen Crozier, Leif Karlstrom
2022, Science Advances (8)
Magma rheology and volatile contents exert primary and highly nonlinear controls on volcanic activity. Subtle changes in these magma properties can modulate eruption style and hazards, making in situ inference of their temporal evolution vital for volcano monitoring. Here, we study thousands of impulsive magma oscillations within the shallow conduit...
Luminescence sediment tracing reveals the complex dynamics of colluvial wedge formation
Harrison J. Gray, Christopher DuRoss, Sylvia Nicovich, Ryan D. Gold
2022, Science (8)
Paleoearthquake studies that inform seismic hazard rely on assumptions of sediment transport that remain largely untested. Here, we test a widespread conceptual model and a new numerical model on the formation of colluvial wedges, a key deposit used to constrain the timing of paleoearthquakes. We perform this test by applying...
Inversion of induced polarization-affected towed-transient electromagnetic data in a lateritic regolith geology: A case study from western Tanzania
Pradip Kumar Maurya, Denys Grombacher, John W. Lane, Johan Lind, Esben Auken
2022, Geophysics (87) B247-B254
For several decades, induced polarization (IP) effects on transient electromagnetic (TEM) responses have been observed. These effects can manifest as late-time negative transients or as rapidly decaying curves and are usually associated with highly polarizable bodies. If neglected, IP effects can lead to erroneous resistivity models. Recent work allows IP...
Modeling and estimating co-occurrence between the invasive Shiny Cowbird and its Puerto Rican hosts
Philip T. Patton, Krishna Pacifici, Jaime A. Collazo
2022, Biological Invasions (24) 2951-2960
Invasive species threaten island biodiversity globally. For example, the Shiny Cowbird (Molothrus bonariensis) parasitizes many of Puerto Rico’s endemic species, particularly in the open forests in the island’s southwest. Less is known, however, about cowbird parasitism in the agro-ecological highlands, which contain a patchwork of forests, shaded-coffee plantations, and coffee...
LANDFIRE data and applications
Inga P. La Puma, Timothy D. Hatten
2022, Fact Sheet 2022-3034
LANDFIRE is a Federal program that provides a suite of spatial datasets indicating areas of disturbance, vegetation and fuels distributions and structure, and historical conditions. The level of detail presented in LANDFIRE’s classifications of disturbance, vegetation, and fuels is unparalleled and can be used in a variety of applications, including...
River Metabolism Estimation Tools (RiverMET) with demo in the Illinois River Basin
Jay Choi, Katherine Michelle Bernabe Quion, Ariel Reed, Judson Harvey
2022, ESSOAr
Ecosystem metabolism quantifies the rate of production, maintenance, and decay of organic matter in terrestrial and aquatic systems. It is a fundamental measure of energy flow associated with biomass production by photosynthesizing organisms and biomass oxidation by respiring plants, animals, algae, and bacteria (Bernhardt et al., 2022) . Ecosystem metabolism...
Hydrologic controls on peat permafrost and carbon processes: New insights from past and future modeling
Claire C. Treat, Miriam C. Jones, Jay R. Alder, Steve Frolking
2022, Frontiers in Environmental Science (10)
Soil carbon (C) in permafrost peatlands is vulnerable to decomposition with thaw under a warming climate. The amount and form of C loss likely depends on the site hydrology following permafrost thaw, but antecedent conditions during peat accumulation are also likely important. We test the role of differing...
Spatially explicit management of genetic diversity using ancestry probability surfaces
Robert Massatti, Daniel E. Winkler
2022, Methods in Ecology and Evolution (13) 2668-2681
1. Ecological restoration and conservation efforts are increasing worldwide and the management of intraspecific genetic variation in plants and animals, an important component of biodiversity, is increasingly valued. As a result, tailorable, spatially explicit approaches to map genetic variation are needed to support decision-making and management frameworks related to the...
Integrated animal movement and spatial capture–recapture models: Simulation, implementation, and inference
B. Gardner, B.T. McClintock, Sarah J. Converse, Nathan J. Hostetter
2022, Ecology (103)
Over the last decade, spatial capture–recapture (SCR) models have become widespread for estimating demographic parameters in ecological studies. However, the underlying assumptions about animal movement and space use are often not realistic. This is a missed opportunity because interesting ecological questions related to animal space use, habitat selection, and behavior...
P- and S-wave velocity estimation by ensemble Kalman inversion of dispersion data for strong motion stations in California
Elif Ecem Bas, Elnaz Seylabi, Alan K. Yong, Hesam Tehrani, Domniki Asimaki
2022, Geophysical Journal International (231) 536-551
This study uses an ensemble Kalman method for near-surface seismic site characterization of 154 network earthquake monitoring stations in California to improve the resolution of S-wave velocity (VS) and P-wave velocity (VP) profiles—up to the resolution depth—coupled with better quantification of uncertainties compared to previous site characterization studies at this network. These...
Stream size, temperature, and density explain body sizes of freshwater salmonids across a range of climate conditions
Robert K. Al-Chokhachy, Benjamin Letcher, Clint C. Muhlfeld, Jason Dunham, Timothy Joseph Cline, Nathaniel P. Hitt, James Roberts, David Schmetterling
2022, Canadian Journal of Fisheries and Aquatic Sciences (79) 1729-1744
Climate change and anthropogenic activities are altering the body sizes of fishes, yet our understanding of factors influencing body size for many taxa remains incomplete. We evaluated the relationships between climate, environmental, and landscape attributes and the body size of different taxa of freshwater trout (Salmonidae) in the USA. Hierarchical...
Comparison of Digital Terrain Models from two photoclinometry methods
Randolph L. Kirk, David Mayer, Colin M. Dundas, Benjamin H Wheeler, Ross A. Beyer, Oleg Alexandrov
2022, International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences (XLIII-B3) 1059-1067
We evaluate the horizontal resolution and vertical precision for digital topographic models (DTMs) of the Moon derived from image radiance information, a process known as photoclinometry (PC) or shape-from-shading (SfS). We use the implementations in two available planetary image processing software systems, single image PC in the U.S. Geological...
Machine learning and data augmentation approach for identification of rare earth element potential in Indiana Coals, USA
Snahamoy Chatterjee, Maria Mastalerz, Agnieszka Drobniak, C. Ozgen Karacan
2022, International Journal of Coal Geology (259)
Rare earth elements and yttrium (REYs) are critical elements and valuable commodities due to their limited availability and high demand in a wide range of applications and especially in high-technology products. The increased demand and geopolitical pressures motivate the search for alternative sources of REYs, and coal, coal waste, and...
Modeling spatiotemporal abundance and movement dynamics using an integrated spatial capture–recapture movement model
Nathan J. Hostetter, E.V. Regehr, R.R. Wilson, J. Andrew Royle, Sarah J. Converse
2022, Ecology (103)
Animal movement is a fundamental ecological process affecting the survival and reproduction of individuals, the structure of populations, and the dynamics of communities. Methods to quantify animal movement and spatiotemporal abundances, however, are generally separate and therefore omit linkages between individual-level and population-level processes. We describe an integrated spatial capture–recapture...
N and P constrain C in ecosystems under climate change: Role of nutrient redistribution, accumulation, and stoichiometry
Ed Rastetter, Bonnie Kwiatkowski, David Kicklighter, Audrey Barker Plotkin, Helene Genet, Jesse Nippert, Kimberly O’Keefe, Steven S. Perakis, Stephen Porder, Sarah Roley, Roger W. Ruess, Jonathan R. Thompson, William Wieder, Kevin WIlcox, Ruth Yanai
2022, Ecological Applications (32)
We use the Multiple Element Limitation (MEL) model to examine responses of twelve ecosystems to elevated carbon dioxide (CO2), warming, and 20% decreases or increases in precipitation. Ecosystems respond synergistically to elevated CO2, warming, and decreased precipitation combined because higher water-use efficiency with elevated CO2 and higher...
Hydrogeology and groundwater quality in the San Agustin Basin, New Mexico, 1975–2019
Jeff D. Pepin, Rebecca E. Travis, Johanna M. Blake, Alex Rinehart, Daniel Koning
2022, Scientific Investigations Report 2022-5029
This report describes the findings of a U.S. Geological Survey study, completed in cooperation with the Bureau of Land Management, focused on better understanding the present-day (1975–2019) hydrogeology and groundwater quality of the San Agustin Basin in west-central New Mexico to support sustainable groundwater resource management. The basin hosts a...
Fundamental science and engineering questions in planetary cave exploration
J. Judson Wynne, Timothy N. Titus, Ali-akbar Agha-Mohammadi, Armando Azua-Bustos, Penelope J. Boston, Pablo de Leon, Cansu Demirel-Floyd, Jo de Waele, Heather Jones, Michael J. Malaska, Ana Z. Miller, Haley M. Sapers, Francesco Sauro, Derek L. Sonderegger, Kyle Uckert, Uland Y. Wong, E. Calvin Alexander Jr., Leroy Chiao, Glen E. Cushing, John DeDecker, Alberto G. Fairen, Amos Frumkin, Gary L. Harris, Michelle L. Kearney, Laura A. Kerber, Richard J. Leveille, Kavya Manyapu, Matteo Massironi, John E. Mylroie, Bogdan P. Onac, Scott E. Parazynski, Charity M. Phillips-Lander, T. H. Prettyman, Dirk Schulze-Makuch, Robert V. Wagner, William L. Whittaker, Kaj E. Williams
2022, JGR Planets (127)
Nearly half a century ago, two papers postulated the likelihood of lunar lava tube caves using mathematical models. Today, armed with an array of orbiting and fly-by satellites and survey instrumentation, we have now acquired cave data across our solar system—including the identification of potential cave entrances on the Moon,...
Advances in the study and understanding of groundwater discharge to surface water
Carlos Duque, Donald O. Rosenberry
2022, Water (14)
Groundwater discharge is vitally important for maintaining or restoring valuable ecosystems in surface water and at the underlying groundwater-surface-water ecotone. Detecting and quantifying groundwater discharge is challenging because rates of flow can be very small and difficult to measure, exchange is commonly highly heterogeneous both in space and time, and...
Constructing a large-scale landslide database across heterogeneous environments using task-specific model updates
Savinay Nagendra, Daniel Kifer, Benjamin B. Mirus, Te Pei, Kathryn Lawson, Srikanth Banagere Manjunatha, Weixin Li, Hien Nguyen, Tong Qiu, Sarah Tran, Chaopeng Shen
2022, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing (15) 4349-4370
Preparation and mitigation efforts for widespread landslide hazards can be aided by a large-scale, well-labeled landslide inventory with high location accuracy. Recent smallscale studies for pixel-wise labeling of potential landslide areas in remotely-sensed images using deep learning (DL) showed potential but were based on data from very small, homogeneous regions...
#TheSmoreYouKnow and #emergencycute: A conceptual model on the use of humor by science agencies during crisis to create connection, empathy, and compassion
Sara K. McBride, Jessica L. Ball
2022, International Journal of Disaster Risk Reduction (27)
Studies from a variety of disciplines reveal that humor can be a useful method to reduce stress and increase compassion, connection, and empathy between agencies and people they serve during times of crisis. Despite this growing evidence base, humor's use during...
Status and understanding of groundwater quality in the Sacramento Metropolitan Domestic-Supply Aquifer study unit, 2017—California GAMA Priority Basin Project
George L. V Bennett V
2022, Scientific Investigations Report 2022-5021
Groundwater quality in the Sacramento Metropolitan Domestic-Supply Aquifer study unit (SacMetro-DSA) was studied from August to November 2017 as part of the second phase of the Priority Basin Project of the California Groundwater Ambient Monitoring and Assessment (GAMA) Program. The study unit is in parts of Amador, Placer, Sacramento, and...
Monitoring the movements of juvenile Pacific Lamprey (Entosphenus tridentatus) in the Yakima River, Washington, using acoustic telemetry, 2019–20
Theresa L. Liedtke, Ralph T. Lampman, Patrick Monk, Amy C. Hansen, Tobias J. Kock, Tyler E. Beals, Daniel Z. Deng, Michael S. Porter
2022, Open-File Report 2022-1052
Anthropogenic barriers to main-stem and tributary passage are one of the primary threats associated with declining populations of Pacific Lamprey (Entosphenus tridentatus) in the Columbia River Basin. Juvenile lamprey are of special interest because their downstream migration to the ocean may be affected by barriers such as dams or water...
