Towards the understanding of hydrogeochemical seismic responses in karst aquifers: A retrospective meta-analysis focused on the Apennines (Italy)
Gilberto Binda, Andrea Pozzi, Alessandro Michetti, Paula Noble, Michael R. Rosen
2020, Minerals (10)
Earthquakes are known to affect groundwater properties, yet the mechanisms causing chemical and physical aquifer changes are still unclear. The Apennines mountain belt in Italy presents a rich literature of case studies documenting hydrogeochemical response to seismicity, due to the high frequency of seismic events and the presence of different...
Multiple-well monitoring site adjacent to the North and South Belridge Oil Fields, Kern County, California
Rhett R. Everett, Anthony A. Brown, Janice M. Gillespie, Adam Kjos, Nicole C. Fenton
2020, Open-File Report 2020-1116
The U.S. Geological Survey (USGS), in cooperation with the California State Water Resources Control Board, is evaluating several questions about oil and gas development and groundwater resources in California, including (1) the location of groundwater resources; (2) the proximity of oil and gas operations to groundwater and the geologic materials...
Critical shifts in trace metal transport and remediation performance under future low river flows
Patrick A. Byrne, Patrizia Onnis, Robert L. Runkel, Ilaria Frau, Sarah F. L. Lynch, Paul Edwards
2020, Environmental Science & Technology (54) 15742-15750
Exceptionally low river flows are predicted to become more frequent and more severe across many global regions as a consequence of climate change. Investigations of trace metal transport dynamics across streamflows reveal stark changes in water chemistry, metal transformation processes, and...
Baseflow age distributions and depth of active groundwater flow in a snow‐dominated mountain headwater basin
Rosemary W.H. Carroll, Andrew H. Manning, Richard G. Niswonger, David W Marchetti, Kenneth H. Williams
2020, Water Resources Research (56)
Deeper flows through bedrock in mountain watersheds could be important, but lack of data to characterize bedrock properties limits understanding. To address data scarcity, we combine a previously published integrated hydrologic model of a snow‐dominated, headwater basin of the Colorado River with a new method for dating baseflow age using...
Field comparison of five in situ turbidity sensors
Teri T. Snazelle
2020, Open-File Report 2020-1123
Five commercially available turbidity sensors were field tested by the U.S. Geological Survey Hydrologic Instrumentation Facility for accuracy and data comparability. The tested sensors were the Xylem EXO (EXO), the Hach Solitax sc (Solitax), the In Situ Aqua TROLL sensor installed onto a TROLL 600 sonde (TROLL 600), the Campbell...
Effect of stream permanence on predation risk of lotic crayfish by riparian predators
A.N. Yarra, Daniel D. Magoulick
2020, Southeastern Naturalist (19)-673
Given the importance of crayfish in stream ecosystems, gaining insight into the role of stream permanence in maintaining predator–prey interactions is critical. Our objectives were to determine the influence of stream permanence and season on crayfish predation and assess the role of stream permanence and...
Quality assurance/quality control procedure for New Jersey’s water-use data for the New Jersey Water Transfer Data System (NJWaTr)
Jennifer L. Shourds
2020, Open-File Report 2020-1085
This report is an instructional reference document that describes methods developed and used by the U.S. Geological Survey (USGS) New Jersey Water Science Center (NJWSC) to assure the quality and completeness of water-use data as provided by the New Jersey Department of Environmental Protection (NJDEP) Bureau of Water Allocation. These...
Trends in recent historical and projected climate data for the Colorado River Basin and potential effects on groundwater availability
Fred D. Tillman, Subhrendu Gangopadhyay, Tom Pruitt
2020, Scientific Investigations Report 2020-5107
Understanding recent historical and projected trends in precipitation and temperature in the Colorado River Basin, and estimating what the projected changes in these climate parameters may mean for groundwater resources in the region, is important for water managers and policymakers to sustainably manage water resources in the basin. Historical (1896–2019)...
Trihalomethane precursors: Land use hot spots, persistence during transport, and management options
Robert S. Eckard, Brian A. Bergamaschi, Brian A. Pellerin, Tamara E. C. Kraus, Peter J. Hernes
2020, Science of the Total Environment (742)
To meet drinking water regulations, rather than investing in costly treatment plant operations, managers can look for ways to improve source water quality; this requires understanding watershed sources and fates of constituents of concern. Trihalomethanes (THMs) are one of the major classes of regulated disinfection byproducts, formed when a specific fraction of the organic...
Comparison of groundwater storage changes from GRACE satellites with monitoring and modeling of major U.S. aquifers
Ashraf Rateb, Bridget R. Scanlon, Donald R. Pool, Alexander Y. Sun, Zizhan Zhang, Jianli Chen, Brian R. Clark, Dianna M. Crilley, Connor J. Haugh, Christopher M. Hobza, Mary C Hill, Virginia L. McGuire, Meredith Reitz, Hannes Muller Schmied Schmied, Edwin H. Sutanudjaja, Sean Swenson, David Wiese, Youlong Xia, Wesley O. Zell
2020, Water Resources Research (56)
GRACE satellite data are widely used to estimate groundwater storage (GWS) changes in aquifers globally; however, comparisons with GW monitoring and modeling data are limited. Here we compared GWS changes from GRACE over 15 yr (2002–2017) in 14 major U.S. aquifers with groundwater-level (GWL) monitoring data in ~23,000...
Soil moisture product validation good practices protocol, version 1.0
Carsten Montzka, Michael H. Cosh, Bagher Bayat, Ahmad Al Bitar, Aaron Berg, Rajat Bindlish, Heye Reemt Bogena, John D. Bolton, Francois Cabot, Todd Caldwell, Steven Chan, Andreas Colliander, Wade Crow, Narendra Das, Gabrielle De Lannoy, Wouter Dorigo, Steven R. Evett, Alexander Gruber, Sebastian Hahn, Thomas Jagdhuber, Scott F. Jones, Yann Kerr, Seung-bum Kim, Christian Koyama, Mehmed Kurum, Ernesto Lopez-Baeza, Francesco Mattia, Kaighin A. McColl, Susanne Mecklenburg, Binayak Mohanty, Peggy O’Neill, Dani Or, Thierry Pellarin, George P. Petropoulos, Maria Piles, Rolf H. Reichle, Nemesio Rodriguez-Fernandez, Christoph Rudiger, Tracy Scanlon, Robert C. Schwartz, Daniel Spengler, Prashant K. Srivastava, Swati Suman, Robin van der Schalie, Wolfgang Wagner, Urs Wegmuller, Jean-Pierre Wigneron, Fernando Camacho, Jaime Nickeson
Carsten Montzka, Michael H. Cosh, Fernando Camacho, Jaime Nickeson, editor(s)
2020, Report
The Global Climate Observing System (GCOS) included soil moisture in the list of Essential Climate Variables (ECVs) to express its important role in Earth’s water, energy and carbon cycle. Soil moisture has a major impact on agriculture, land surface hydrology, weather, and climate forecasting. This document is a community-based effort to provide recommendations...
Spatial and temporal patterns in streamflow, water chemistry, and aquatic macroinvertebrates of selected streams in Fairfax County, Virginia, 2007–18
Aaron J. Porter, James S. Webber, Jonathan W. Witt, John D. Jastram
2020, Scientific Investigations Report 2020-5061
Urbanization substantially alters the landscape in ways that can impact stream hydrology, water chemistry, and the health of aquatic communities. Stormwater best management practices (BMPs) are the primary tools used to mitigate the effects of urban stressors such as increased runoff, decreased baseflow, and increased nutrient and sediment transport. To...
COVID-19 pandemic impacts on global inland fisheries
Gretchen L. Stokes, Abigail Lynch, Benjamin S. Lowe, Simon Funge-Smith, John Valbo-Jorgensen, Samuel J. Smidt
2020, PNAS (117) 29419-29421
The COVID-19 pandemic has led to environmental recovery in some ecosystems from a global “anthropause,” yet such evidence for natural resources with extraction or production value (e.g., fisheries) is limited. This brief report provides a data-driven global snapshot of expert-perceived impacts of COVID-19 on inland fisheries. We distributed an online...
Hydrologic properties of a highly permeable firn aquifer in the Wilkins Ice Shelf, Antarctica
Lynn Montgomery, C. Miege, Julie MIller, Bruce Wallin, Ted A. Scambos, Olivia L. Miller, D Kip Solomon, Richard Forster, Lora Koenig
2020, Geophysical Research Letters (47)
We present measurements of the density, hydraulic conductivity, and specific discharge of a widespread firn aquifer in Antarctica, within the Wilkins Ice Shelf. At the field site, the aquifer is 16.2 m thick, starting at 13.4 m from the snow surface and transitioning from water‐saturated firn to ice at 29.6 m. Hydraulic conductivity...
Ontogenetic shifts in mesohabitat use of young-of-year Rio Grande blue sucker in the Big Bend region of the Rio Grande
Seiji Miyazono, Allison A. Pease, Sarah Fritts, Timothy B. Grabowski
2020, Environmental Biology of Fishes (103) 1471-1480
Alteration of flow regimes by anthropogenic activities is one of the primary environmental problems in riverine systems. Understanding how hydrologic conditions can affect ontogenetic habitat shifts of imperiled fishes is important in order to develop conservation and management strategies for each life-history stage. We examined relationships between the abundance of...
Statistical methods in water resources
Dennis R. Helsel, Robert M. Hirsch, Karen R. Ryberg, Stacey A. Archfield, Edward J. Gilroy
2020, Techniques and Methods 4-A3
This text began as a collection of class notes for a course on applied statistical methods for hydrologists taught at the U.S. Geological Survey (USGS) National Training Center. Course material was formalized and organized into a textbook, first published in 1992 by Elsevier as part of their Studies in Environmental...
Water resources in the Cheyenne and Arapaho Tribal jurisdictional area, west-central Oklahoma, with an analysis of data gaps through 2015
Carol Becker, Matthew S. Varonka
2020, Scientific Investigations Report 2020-5105
This report provides an overview of existing hydrologic information describing the quality, quantity, and extent of the major surface-water and groundwater resources in the Cheyenne and Arapaho Tribal jurisdictional area, west-central Oklahoma. Hydrologic information is provided for five major river systems (Cimarron River, North Canadian River, Canadian River, Washita River,...
Imperatives for predicting preferential and diffuse flow in the unsaturated zone: 1. Equal emphasis
John R. Nimmo
2020, Hydrological Processes (34) 5690-5693
No abstract available....
Imperatives for predicting preferential and diffuse flow in the unsaturated zone: 2. Disparate formulation
John R. Nimmo
2020, Hydrological Processes (34) 5694-5698
No abstract available....
Injection‐induced earthquakes near Milan, Kansas, controlled by Karstic Networks
Charlene Joubert, Reza Sohrabi, Justin Rubinstein, Gunnar Jansen, Stephen A Miller
2020, Geophysical Research Letters (47)
Induced earthquakes from waste disposal operations in otherwise tectonically stable regions significantly increases seismic hazard. It remains unclear why injections induce large earthquakes on non‐optimally oriented faults kilometers below the injection horizon, particularly since fluids are not injected under pressure, but rather poured, into the well as...
Application of the RSPARROW modeling tool to estimate total nitrogen sources to streams and evaluate source reduction management scenarios in the Grande River Basin, Brazil
Matthew P. Miller, Marcelo L de Souza, Richard B Alexander, Lillian E. Gorman Sanisaca, Alexandre de Amorim Teixeira, Alison P. Appling
2020, Water (12)
Large-domain hydrological models are increasingly needed to support water-resource assessment and management in large river basins. Here, we describe results for the first Brazilian application of the SPAtially Referenced Regression On Watershed attributes (SPARROW) model using a new open-source modeling and interactive decision support system tool (RSPARROW) to quantify the...
Trophic structure of apex fish communities in closed versus leaky lakes of arctic Alaska
Stephen L. Klobucar, Phaedra E. Budy
2020, Oecologia (194) 491-504
Despite low species diversity and primary production, trophic structure (e.g., top predator species, predator size) is surprisingly variable among Arctic lakes. We investigated trophic structure in lakes of arctic Alaska containing arctic char Salvelinus alpinus using stomach contents and stable isotope ratios in two geographically-close but hydrologically-distinct lake clusters to investigate how...
Climate sensitivity of water use by riparian woodlands at landscape scales
Marc Mayes, Kelly K. Caylor, Michael B. Singer, John C Stella, Dar Roberts, Pamela L. Nagler
2020, Hydrological Processes (34) 4884-4903
Semi‐arid riparian woodlands face threats from increasing extractive water demand and climate change in dryland landscapes worldwide. Improved landscape‐scale understanding of riparian woodland water use (evapotranspiration, ET) and its sensitivity to climate variables is needed to strategically manage water resources, as well as to create successful ecosystem conservation and restoration...
Interaction between watershed features and climate forcing affects habitat profitability for juvenile salmon
Timothy E. Walsworth, Jeffrey R Baldock, Christian E. Zimmerman, Daniel E. Schindler
2020, Ecosphere (11)
Opportunities for growth and survival of aquatic organisms are spatially and temporally variable as habitat conditions across watersheds respond to interacting climatic, geomorphic, and hydrologic conditions. As conservation efforts often focus on identifying and protecting critical habitats, it is important to understand how this spatial and...
Soil respiration response to rainfall modulated by plant phenology in a montane meadow, East River, Colorado, USA
Mathew Winnick, Corey R. Lawrence, Maeve McCormick, Jennifer Druhan, Kate Maher
2020, Journal of Geophysical Research Biogeosciences (125)
Soil respiration is a primary component of the terrestrial carbon cycle. However, predicting the response of soil respiration to climate change remains a challenge due to the complex interactions between environmental drivers, especially plant phenology, temperature, and soil moisture. In this study, we use a 1‐D diffusion‐reaction model to calculate...
