Regionalization of groundwater residence time using metamodeling
J. Jeffrey Starn, Kenneth Belitz
2019, Water Resources Research (54) 6357-6373
Groundwater residence-time distributions (RTDs) are critical for assessing susceptibility of water resources to degradation. A novel combination of numerical modeling and statistical methods allows estimation of regional RTDs with unprecedented speed. In this method, particle RTDs are generated in 30 type locales in the northeastern glaciated U.S using automated...
Genomic pedigree reconstruction identifies predictors of mating and reproductive success in an invasive vertebrate
Brenna A Levine, Marlis R Douglas, Amy A. Yackel Adams, Bjorn Lardner, Robert Reed, Julie A. Savidge, Michael E Douglas
2019, Ecology and Evolution (9) 11863-11877
The persistence of an invasive species is influenced by its reproductive ecology, and a successful control program must operate on this premise. However, the reproductive ecology of invasive species may be enigmatic due to factors that also limit their management, such as cryptic coloration and behavior. We explored the mating...
In vitro immune function in laboratory-reared age-0 smallmouth bass (Micropterus dolomieu) relative to diet
Christopher Ottinger, Cheyenne R. Smith, Vicki S. Blazer
2019, Fish & Shellfish Immunology (95) 1-10
Smallmouth bass (Micropterus dolomieu) are used as an indicator species in environmental monitoring and assessment studies. However, laboratory-based studies for methods development and effector assessment are limited for this species. Nutrition, a known modulator of teleost physiological responses including immune function, is a critical knowledge-gap sometimes overlooked in the design...
Landscape genetics reveals unique and shared effects of urbanization for two sympatric pool-breeding amphibians
Jared J. Homola, Cynthia S. Loftin, Michael T. Kinnison
2019, Ecology and Evolution (9) 11799-11823
Metapopulation-structured species can be negatively affected when landscape fragmentation impairs connectivity. We investigated the effects of urbanization on genetic diversity and gene flow for two sympatric amphibian species, spotted salamanders (Ambystoma maculatum) and wood frogs (Lithobates sylvaticus), across a large (>35,000 km2) landscape in Maine, USA, containing numerous natural and...
Burial history reconstruction of the Appalachian Basin in Kentucky, West Virginia, Ohio, Pennsylvania, and New York, using 1D petroleum system models
Debra K. Higley, Catherine B. Enomoto
2019, Mountain Geologist (56) 365-396
Nine 1D burial history models were built across the Appalachian Basin to reconstruct the burial, erosional, and thermal maturation histories of contained petroleum source rocks. Models were calibrated to measured downhole temperature and to vitrinite reflectance (% Ro) data from Devonian through Pennsylvanian petroleum source rocks. The highest levels...
Spatial fingerprinting of biogenic and anthropogenic volatile organic compounds in an arid unsaturated zone
Christopher Green, Wentai Luo, Christopher H. Conaway, Karl B. Haase, Ronald J. Baker, Brian J. Andraski
2019, Vadose Zone Journal (18)
Subsurface volatile organic compounds (VOCs) can pose risks to human and environmental health and mediate biological processes. VOCs have both anthropogenic and biogenic origins, but the relative importance of these sources has not been explored in subsurface environments. This study synthesizes 17 years of VOC data from the Amargosa Desert...
Wetland biomass and productivity in Coastal Louisiana: Base line data (1976-2015) and knowledge gaps for the development of spatially explicit models for ecosystem restoration and rehabilitation initiatives
Victor H. Rivera-Monroy, Courtney Elliton, Siddhartha Narra, Ehab Meselhe, Xiaochen Zhao, Eric White, Charles E. Sasser, Jenneke M. Visser, X. Meng, Hongqing Wang, Zuo Xue, Fernando Jaramillo
2019, Water (11)
Coastal Louisiana host 37% of the coastal wetland area in the conterminous US, including one of the deltaic coastal regions more susceptible to the synergy of human and natural impacts causing wetland loss. As a result of the construction of flood protection infrastructure, dredging of channels across wetlands for oil/gas...
Seasonal, spring-neap, and tidal variation in cohesive sediment transport parameters in estuarine shallows
Rachel Allen, Jessica R. Lacy, Mark T. Stacey, Evan A Variano
2019, Journal of Geophysical Research: Oceans (124) 7265-7284
Numerical models for predicting sediment concentrations and transport rely on parameters such as settling velocity and bed erodibility that describe sediment characteristics, yet these parameters are rarely probed directly. We investigated temporal and spatial variation in sediment parameters in the shallows of San Pablo Bay, CA. Flow, turbulence, and suspended...
Monitoring, forecasting collapse events, and mapping pyroclastic deposits at Sinabung volcano with satellite imagery
John S. Pallister, Rick Wessels, Julia P. Griswold, Wendy A. McCausland, Nugraha Kartadinata, Hendra Gunawan, Agus Budianto, Sofyan Primulyana
2019, Journal of Volcanology and Geothermal Research (382) 149-163
During the ongoing (2013–present) eruption of Sinabung volcano, north Sumatra, we have routinely used a variety of satellite remote sensing data to observe and forecast lava dome and lava flow collapse events, to map the resulting pyroclastic deposits, and to estimate effusion rates. In this paper, we focus on the first two years of the current eruption...
Formation pressure and fluid flow measurements in marine gas hydrate reservoirs, NGHP-02 expedition, offshore India
Pushpendra Kumar, Timothy S. Collett, U.S. Yadav, Juli Singh
2019, Journal of Marine and Petroleum Geology (108) 609-618
Open Hole Modular Dynamic Testing (MDT) measurements were conducted in a gas hydrate-bearing sand-rich reservoir offshore India during the National Gas Hydrate Program 02 (NGHP-02) Expedition. The primary goal of this test was to obtain effective reservoir petrophysical properties in the presence of gas hydrates. The test plan included a...
India National Gas Hydrate Program Expedition-02: Operational and technical summary
Pushpendra Kumar, Timothy S. Collett, K. M. Shukla, U. S. Yadav, M. V. Lall, Krishna Vishwanath
2019, Journal of Marine and Petroleum Geology (108) 3-38
The India National Gas Hydrate Program is being steered by the government of India's Ministry of Petroleum and Natural Gas (MoPNG) with participation of Directorate General of Hydrocarbons (DGH), Oil and Natural Gas Corporation Limited (ONGC), and the National Oil Companies and Research Institutes of India. The India National Gas...
National Gas Hydrate Program expedition 02: Identification of gas hydrate prospects in the Krishna-Godavari Basin, offshore India
K.M. Shukla, U.S. Yadav, Pushpendra Kumar, Timothy Collett, R. Boswell, M. Frye, M. Riedel, I. Kaurf, K. Vishwanathf
2019, Journal of Marine and Petroleum Geology (108) 167-184
After completing the first expedition of India's National Gas Hydrate Program (NGHP-01) in 2006, it was concluded that for the next expedition (National Gas Hydrate Program 02; NGHP-02), a new drill site review effort should focus on identifying potential deep-water offshore gas hydrate accumulations in sand dominated depositional environments. Therefore,...
Numerical simulations of depressurization-induced gas production from an interbedded turbidite gas hydrate-bearing sedimentary section in the offshore India: Site NGHP-02-16 (Area-B)
Evgeniy M. Myshakin, Yongkoo Seol, Jeen-Shang Lin, Shun Uchida, Timothy Collett, Ray Boswell
2019, Journal of Marine and Petroleum Geology (108) 619-638
The recent National Gas Hydrate Program Expedition 02 (NGHP-02) identified the existence of gas hydrate-bearing sand reservoirs at a number of sites in the offshore of India including Site NGHP-02-16 in Area-B of the Krishna-Godavari Basin. The architecture of that gas hydrate accumulation is characterized by thin, gas hydrate-bearing, high...
India National Gas Hydrate Program Expedition 02 summary of scientific results: Numerical simulation of reservoir response to depressurization
Ray Boswell, Evgeniy Myshakin, George Moridis, Yoshihiro Konno, Timothy S. Collett, Matthew Reagan, Taiwo Ajayi, Yongkoo Seol
2019, Journal of Marine and Petroleum Geology (108) 154-166
The India National Gas Hydrate Program Expedition 02 (NGHP-02) discovered gas hydrate at high saturation in sand reservoirs at several sites in the deepwater Bay of Bengal. To assess the potential response of those deposits to scientific depressurization experiments, comprehensive geologic models were constructed to enable numerical simulation for...
Discrete Zr and REE mineralization of the Baerzhe rare-metal deposit, China
Kunfeng Qiu, Haocheng Yu, Mingqian Wu, Jianzhen Geng, Xiangkun Ge, Zongyang Gou, Ryan D. Taylor
2019, American Mineralogist (104) 1487-1502
Although REE (lanthanides + Y) mineralization in alkaline silicate systems is commonly accompanied with Zr mineralization worldwide, our understanding of the relationship between Zr and REE mineralization is still incomplete (e.g. Škoda and Novák, 2007; Linnen et al., 2014; Petrella et al., 2014; Möller and Williams-Jones, 2016; Wu et al.,...
Ensembles of ETAS models provide optimal operational earthquake forecasting during swarms: Insights from the 2015 San Ramon, California swarm
Andrea L. Llenos, Andrew J. Michael
2019, Bulletin of the Seismological Society of America (109) 2145-2158
Earthquake swarms, typically modeled as time-varying changes in background seismicity that are driven by external processes such as fluid flow or aseismic creep, present challenges for operational earthquake forecasting. While the time decay of aftershock sequences can be estimated with the modified Omori law, it is difficult to forecast...
Analytical framework to estimate water use associated with continuous oil and gas development
Joshua F. Valder, Ryan R. McShane, Theodore B. Barnhart, Spencer L. Wheeling, Janet M. Carter, Kathleen M. Macek-Rowland, Gregory C. Delzer, Joanna N. Thamke
2019, Scientific Investigations Report 2019-5100
An analytical framework was designed to estimate water use associated with continuous oil and gas (COG) development in support of the U.S. Geological Survey Water Availability and Use Science Program. This framework was developed to better understand the relation between the production of COG resources for energy and the amount...
Linking sedimentation and erosion patterns with reservoir morphology and dam operations during streambed drawdowns in a flood-control reservoir in the Oregon Cascades
Mackenzie K. Keith, Laurel E. Stratton
2019, Conference Paper, Proceedings of SEDHYD 2019
Since water-year (WY) 2011, pool levels at Fall Creek Lake, Oregon, are temporarily lowered to an elevation near historical streambed each fall, creating free-flowing channel conditions that facilitate downstream passage of juvenile spring Chinook salmon. These drawdown operations have also mobilized substantial quantities of predominantly fine (<2 mm) reservoir sediment...
Anderson Ranch wetlands hydrologic characterization in Taos County, New Mexico
Amy E. Galanter, Zachary M. Shephard, Pamela Herrera-Olivas
2019, Open-File Report 2019-1100
The Anderson Ranch property (study area), located in Taos County, north-central New Mexico, was transferred from Chevron Mining, Inc. (CMI) to the Bureau of Land Management (BLM) as part of a Natural Resource Damage Assessment and Restoration (NRDAR) court-ordered settlement. The study area supports freshwater emergent wetlands and freshwater ponds....
Can geologic factors be predictive for distinguishing between productive and non-productive geothermal wells?
Drew L. Siler, Erick R. Burns, James E Faulds
2019, Geothermal Resources Council Transactions (43) 884-901
Geologic data are examined to evaluate whether certain geologic characteristics occur in higher abundance or higher magnitude along production geothermal wells relative to non-productive wells. We perform 3D geologic mapping, 3D stress modeling, and fault-slip modeling to estimate fourteen different geologic factors that are hypothesized to control or correlate with...
Integration of eDNA-based biological monitoring within the US Geological Survey’s national streamgage network
David S. Pilliod, Matthew Laramie, Dorene McCoy, Scott Maclean
2019, Journal of the American Water Resources Association (55) 1505-1518
This study explores the feasibility and utility of integrating environmental DNA (eDNA) assessments of species occurrences into the United States (U.S.) Geological Survey’s national streamgage network. We used an existing network of five gages in southwest Idaho to explore the type of information that could be gained as well as...
Water resources on Guam—Potential impacts of and adaptive response to climate change
Stephen B. Gingerich, Adam G. Johnson, Sarah N. Rosa, Mathieu D. Marineau, Scott Wright, Lauren E. Hay, Matthew J. Widlansky, John W. Jenson, Corinne I. Wong, Jay L. Banner, Melissa L. Finucane, Victoria W. Keener
2019, Scientific Investigations Report 2019-5095
The goals of this joint U.S. Geological Survey, University of Hawaiʻi, University of Guam, University of Texas, and East-West Center study were to (1) provide basic understanding about water resources for U.S. Department of Defense installations on Guam and (2) assess the resulting effect of sea-level rise and a changing...
A fuzzy logic approach for estimating recovery factors of miscible CO2-EOR projects in the United States
C. Ozgen Karacan
2019, Journal of Petroleum Science and Engineering (184)
"Recovery factor (RF) is one of the most fundamental parameters that define engineering and economical success of any operational phase in oil and gas production. The effectiveness of the operation, e.g. CO2-EOR (enhanced oil recovery with carbon dioxide injection), is usually defined by multiplying the resultant recovery factor by the...
Finding the sweet spot: Shifting climate optima for maple syrup production in North America
Joshua M. Rapp, David A. Lutz, Ryan H. Huish, Boris Dufour, Selena Ahmed, Toni Lyn Morelli, Kristina A. Stinson
2019, Forest Ecology and Management (448) 187-197
Climate change is affecting the benefits society derives from forests. One such forest ecosystem service is maple syrup, which is primarily derived from Acer saccharum (sugar maple), currently an abundant and widespread tree species in eastern North America. Two climate sensitive components of sap affect syrup production: sugar content...
Using the stream salmonid simulator (S3) to assess juvenile Chinook salmon (Oncorhynchus tshawytscha) production under historical and proposed action flows in the Klamath River, California
John M. Plumb, Russell W. Perry, Nicholas A. Som, Julie Alexander, Nicholas J. Hetrick
2019, Open-File Report 2019-1099
Executive SummaryThe production of Klamath River fall Chinook salmon (Oncorhynchus tshawytscha) in northern California and southern Oregon is thought to be limited by poor survival during freshwater juvenile life stages, in part a result of Ceratonova shasta—a highly infectious disease that can lead to high fish mortality. Higher flushing...
