Realizations
C. Ozgen Karacan
2021, Book chapter, Encyclopedia of Mathematical Geosciences
In statistics, a realization is an observed value of a random variable (Gubner 2006). In mathematical geology, the most important realizations are those in the form of maps of spatially correlated regionalized variables.Spatial description of random variables within complex domains...
Enhancing marsh elevation using sediment augmentation: A case study from southern California, USA
Evyan Borgnis Sloane, Karen M. Thorne, Christine R Whitcraft, Victoria Touchstone
2021, Shore & Beach (89)
Tidal marshes are an important component of estuaries that provide habitat for fish and wildlife, protection from flooding, recreation opportunities, and can improve water quality. Critical to maintaining these functions is vertical accretion, a key mechanism by which tidal marshes...
Chesapeake Bay: A case study in resiliency and restoration
Richard R Arnold, William C. Dennison, Louis A. Etgen, Peter Goodwin, Michael Paolisso, Gary W. Shenk, Ann Swanson, Nguyen Vargas
2021, Hydrolink (1) 25-28
Chesapeake Bay (“mother of waters” or the “great shellfish Bay” in Algonquin), is the largest estuary in the United States and arguably the best studied estuary in the world. Chesapeake Bay is immense, with the main stem stretching 200 nautical miles (315 km) from the mouth of the Susquehanna River...
Geoelectric survey of the Granite Gravel aquifer, Llano Uplift, Central Texas, to determine locations for water wells
Scott Ikard, David S. Wallace, Andrew Teeple, Gregory Stanton
2021, Journal of Applied Geophysics (195)
An electrical geophysical survey was completed within a small area of the Llano Uplift of central Texas to determine locations to install two water wells in the Granite Gravel aquifer (GGA). Electrical resistivity tomography (ERT) was performed along two 188-m long...
Climate change may impair electricity generation and economic viability of future Amazon hydropower
Rafael M. Almeida, Ayan S. Fleischmann, Joao P.F. Breda, Diego S. Cardoso, Hector Angarita, Walter Collischonn, Bruce R. Forsberg, Roosevelt García-Villacorta, Stephen K. Hamilton, Phillip M. Hannam, Rodrigo Paiva, N. LeRoy Poff, Suresh Sethi, Qinru Shi, Carla P. Gomes, Alexander S. Flecker
2021, Global Environmental Change (71)
Numerous hydropower facilities are under construction or planned in tropical and subtropical rivers worldwide. While dams are typically designed considering historic river discharge regimes, climate change may induce large-scale alterations in river hydrology. Here we analyze how future climate change will affect river hydrology, electricity generation, and economic viability of > 350...
Geohydrologic and water-quality characterization of a fractured-bedrock test hole in an area of Marcellus Shale gas development, Sullivan County, Pennsylvania
Dennis W. Risser, John Williams, Aaron D. Bierly
2021, Open-File Report OFMI 21-02.0
The stratigraphy, water-bearing zones, and quality of groundwater were characterized in a 1,400-ft-deep test hole drilled during 2013 in fractured bedrock in Sullivan County, Pa., by collection and analysis of measurements made during drilling, geophysical logs, and depth-specific hydraulic tests and water samples. The multidisciplinary characterization of the test hole...
Complex evolutionary history of felid anelloviruses
Simona Kraberger, Laurel EK Serieys, Cecile Richet, Nicholas M Fountain-Jones, Guy Baele, Jacqueline M. Bishop, Mary Nehring, Jacob S. Ivan, Eric S. Newkirk, John R. Squires, Michael C. Lund, Seth P. D. Riley, Christopher C. Wilmers, Paul D. van Helden, Koenraad Van Doorslaer, Melanie Culver, Sue VandeWoude, Darren P. Martin, Arvind Varsani
2021, Virology (562) 176-189
Anellovirus infections are highly prevalent in mammals, however, prior to this study only a handful of anellovirus genomes had been identified in members of the Felidae family. Here we characterise anelloviruses in pumas (Puma concolor), bobcats (Lynx rufus), Canada lynx (Lynx canadensis), caracals (Caracal caracal) and domestic cats (Felis catus)....
Elevation and elevation-change maps of Fountain Creek, southeastern Colorado, 2015-20
Laura A. Hempel, Andrea L. Creighton, Andrew R. Bock
2021, Scientific Investigations Map 3481
The U.S. Geological Survey, in cooperation with Colorado Springs Utilities, has collected topographic data annually since 2012 at 10 study areas along Fountain Creek, southeastern Colorado. The 10 study areas were located between Colorado Springs and the terminus of Fountain Creek at the Arkansas River in Pueblo. The purpose of...
Concentration-discharge relationships of dissolved rhenium in Alpine catchments reveal its use as a tracer of oxidative weathering
Robert Hilton, Jens M. Turowski, Matthew Winnick, Mathieu Dellinger, Patrick Schleppi, Kenneth H. Williams, Corey Lawrence, Katharine Maher, Martin West, Amanda Hayton
2021, Water Resources Research (57)
Oxidative weathering of sedimentary rocks plays an important role in the global carbon cycle. Rhenium (Re) has been proposed as a tracer of rock organic carbon (OCpetro) oxidation. However, the sources of Re and its mobilization by hydrological processes remain poorly constrained. Here we examine dissolved Re...
System characterization report on Resourcesat-2 Advanced Wide Field Sensor
Shankar N. Ramaseri Chandra, Minsu Kim, Jon Christopherson, Gregory L. Stensaas, Cody Anderson
2021, Open-File Report 2021-1030-G
Executive SummaryThis report addresses system characterization of the Indian Space Research Organisation Resourcesat-2 Advanced Wide Field Sensor (AWiFS) and is part of a series of system characterization reports produced and delivered by the U.S. Geological Survey Earth Resources Observation and Science Cal/Val Center of Excellence in 2021. These reports present...
Behavior and movement of smallmouth bass (Micropterus dolomieu) in the forebay of Bonneville Dam, Columbia River, August–December 2020
Tobias J. Kock, Gabriel S. Hansen, Scott D. Evans
2021, Open-File Report 2021-1099
A telemetry study was conducted during August–December 2020 to evaluate behavior and movement patterns of adult smallmouth bass (Micropterus dolomieu) in the forebay of Bonneville Dam, Washington. A total of 40 smallmouth bass were collected, tagged, and released during August–September in seven distinct areas of the dam forebay and...
Northern bobwhite occupancy patterns on multiple spatial scales across Arkansas
E. V. Lassiter, M. Asher, G. Christie, C. Gale, A. Massey, C. Massery, C. R. MIddaugh, J. Veon, Brett Alexander DeGregorio
2021, Journal of Fish and Wildlife Management (12) 502-512
Northern bobwhite Colinus virginianus populations have been rapidly declining in the eastern, central, and southern United States for decades. Land use change and an incompatibility between northern bobwhite resource needs and human land use practices have driven declines. Here, we applied occupancy analyses on two spatial scales (state level and ecoregion level)...
Synergistic interventions to control COVID-19: Mass testing and isolation mitigates reliance on distancing
Emily Howerton, Matthew J. Ferrari, Ottar N Bjornstad, Tiffany L. Bogich, Rebecca K. Borchering, Chris P. Jewell, James D. Nichols, William J.M. Probert, Michael C. Runge, Michael J. Tildesley, Cecile Viboud, Katriona Shea
2021, PLOS Computational Biology (17)
Stay-at-home orders and shutdowns of non-essential businesses are powerful, but socially costly, tools to control the pandemic spread of SARS-CoV-2. Mass testing strategies, which rely on widely administered frequent and rapid diagnostics to identify and isolate infected individuals, could be a potentially less disruptive management strategy,...
Rapid embryonic development supports the early onset of gill functions in two coral reef damselfishes
LA Prescott, Amy M. Regish, SJ McMahon, Stephen D. McCormick, JL Rummer
2021, Journal of Experimental Biology (224)
The gill is one of the most important organs for growth and survival of fishes. Early life stages in coral reef fishes often exhibit extreme physiological and demographic characteristics that are linked to well-established respiratory and ionoregulatory processes. However, gill development and function in coral...
Estimates of water use associated with continuous oil and gas development in the Permian Basin, Texas and New Mexico, 2010–19, with comparisons to the Williston Basin, North Dakota and Montana
Natalie A. Houston, Grady P. Ball, Amy E. Galanter, Joshua F. Valder, Ryan R. McShane, Joanna N. Thamke, Jeremy S. McDowell
2021, Fact Sheet 2021-3053
The Permian Basin, in west Texas and southeastern New Mexico is one of the largest conventional oil and gas reservoirs in the United States and is becoming one of the world’s largest continuous oil and gas (COG) reservoirs. Advances in technology have enabled oil and gas to be...
Assessment of runoff volume reduction associated with soil amendments added to portions of highway median-strip catchments in Ohio, 2018–20
Matthew T. Whitehead, G. F. Koltun
2021, Scientific Investigations Report 2021-5114
The U.S. Geological Survey installed 10 rain gages and 12 calibrated H-flumes to measure rainfall and runoff volumes at 10 locations in Ohio Department of Transportation highway median-strip catchments. Data were collected to facilitate comparisons of rainfall and runoff volumes at study sites before and after stormwater best management practices...
Riverscape-scale modeling of fundamentally suitable habitat for mussel assemblages in an Ozark River system, Missouri
K. Keymanesh, Amanda E. Rosenberger, G. Lindner, Kristen L. Bouska, Stephen E. McMurray
2021, Freshwater Mollusk Biology and Conservation (24) 43-58
Identifying the physical habitat characteristics associated with riverine freshwater mussel assemblages is challenging but crucial for understanding the causes of mussel declines. The occurrence of mussels in multispecies beds suggests that common physical factors influence or limit their occurrence. Fine-scale geomorphic and hydraulic factors (e.g., scour, bed stability) are predictive...
Geologic and hydrogeologic characteristics of the White River Formation, Lance Formation, and Fox Hills Sandstone, northern greater Denver Basin, southeastern Laramie County, Wyoming
Timothy T. Bartos, Devin L. Galloway, Laura L. Hallberg, Marieke Dechesne, Sharon F. Diehl, Seth L. Davidson
2021, Scientific Investigations Report 2021-5020
In cooperation with the Wyoming State Engineer’s Office, the U.S. Geological Survey studied the geologic and hydrogeologic characteristics of Cenozoic and Upper Cretaceous strata at a location in southeastern Laramie County within the Wyoming part of the Cheyenne Basin, the northern subbasin of the greater Denver Basin. The study aimed...
Invasive black carp as a reservoir host for the freshwater mollusk parasite Aspidogaster conchicola: Further evidence of mollusk consumption and implications for parasite dispersal
Barry C. Poulton, Jennifer Bailey, Patrick Kroboth, Amy E. George, Duane Chapman
2021, Freshwater Mollusk Biology and Conservation (24) 114-123
Black Carp (Mylopharyngodon piceus) has invaded the Mississippi River and is a potential threat to native mollusks. During prior diet research, we discovered that the fluke Aspidogaster conchicola, a mollusk parasite, occurs regularly in the gastrointestinal tract of Black Carp. The fluke remains in fish intestines for extended periods after the...
Telemetry reveals migratory drivers and disparate space use across seasons and age-groups in American horseshoe crabs
Justin J. Bopp, Matthew Sclafani, Michael G. Frisk, Kim McKown, Catherine Zeigler, David R. Smith, Robert Cerrato
2021, Ecosphere (12)
Identifying mechanisms that underpin animal migration patterns and examining variability in space use within populations is crucial for understanding population dynamics and management implications. In this study, we quantified the migration rates, seasonal changes in migratory connectivity, and residency across population demographics (age and sex) to...
Sustaining transmission in different host species: The emblematic case of Sarcoptes scabiei
E Browne, MM Driessen, Paul C. Cross, L. E. Escobar, Janet E. Foley, Lopez-Olvera, KD Niedringhaus, Liza Rossi, Scott Carver
2021, BioScience
Some pathogens sustain transmission in multiple different host species, but how this epidemiologically important feat is achieved remains enigmatic. Sarcoptes scabiei is among the most host generalist and successful of mammalian parasites. We synthesize pathogen and host traits that mediate sustained transmission and present cases illustrating three transmission mechanisms...
Diagenetic barite-pyrite-wurtzite formation and redox signatures in Triassic mudstone, Brooks Range, northern Alaska
John F. Slack, Ryan J. McAleer, Wayne (Pat) Shanks, Julie A. Dumoulin
2021, Chemical Geology (585)
Mineralogical and geochemical studies of interbedded black and gray mudstones in the Triassic part of the Triassic-Jurassic Otuk Formation (northern Alaska) document locally abundant barite and pyrite plus diverse redox signatures. These strata, deposited in an outer shelf setting at paleolatitudes of ~45 to 60°N, show widespread sedimentological evidence for...
Effects of sea ice decline and summer land use on polar bear home range size in the Beaufort Sea
Anthony M. Pagano, George M. Durner, Todd C. Atwood, David C. Douglas
2021, Ecosphere (12)
Animals responding to habitat loss and fragmentation may increase their home ranges to offset declines in localized resources or they may decrease their home ranges and switch to alternative resources. In many regions of the Arctic, polar bears (Ursus maritimus) exhibit some of the largest home ranges of any quadrupedal...
Grassification and fast-evolving fire connectivity and risk in the Sonoran Desert, United States
Benjamin T. Wilder, Catherine S. Jarnevich, Elizabeth Baldwin, Joseph S. Black, Kim A. Franklin, Perry Grissom, Katherine Hovanes, Aaryn Olsson, Jim Malusa, Abu S.M.G. Kibria, Yue M. Li, Aaron M. Lien, Alejandro Ponce, Julia A. Rowe, Jose Soto, Maya Stahl, Nicholas Young, Julio L. Betancourt
2021, Frontiers in Ecology and Evolution (9)
In the southwestern United States, non-native grass invasions have increased wildfire occurrence in deserts and the likelihood of fire spread to and from other biomes with disparate fire regimes. The elevational transition between desertscrub and montane grasslands, woodlands, and forests generally occurs at ∼1,200 masl and has experienced...
Quantifying non-thermal silicate weathering using Ge/Si and Si isotopes in rivers draining the Yellowstone Plateau Volcanic Field, USA
Francois Gaspard, Sophie Opfergelt, Catherine Hirst, Shaul Hurwitz, R. Blaine McCleskey, Petra Zahajska, Daniel J. Conley, Pierre Delmelle
2021, Geochemistry, Geophysics, Geosystems (22)
In active volcanic regions, high-temperature chemical reactions in the hydrothermal system consume CO2 sourced from magma or from the deep crust, whereas reactions with silicates at shallow depths mainly consume atmospheric CO2. Numerous studies have quantified the load of dissolved solids in rivers that drain volcanic regions to...
