Carrie Givens
Science and Products
Quality of surface water in Missouri, water year 2019
The U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, designed and operates a network of monitoring stations on streams and springs throughout Missouri known as the Ambient Water-Quality Monitoring Network (AWQMN). During water year 2019 (October 1, 2018, through September 30, 2019), water-quality data were...
Kay, Robert T.
DGMETA (version 1)—Dissolved gas modeling and environmental tracer analysis computer program
DGMETA (Dissolved Gas Modeling and Environmental Tracer Analysis) is a Microsoft Excel-based computer program that is used for modeling air-water equilibrium conditions from measurements of dissolved gases and for computing concentrations of environmental tracers that rely on air-water equilibrium model results. DGMETA can solve for the...
Jurgens, Bryant C.; Böhlke, J.K.; Haase, Karl; Busenberg, Eurybiades; Hunt, Andrew G.; Hansen, Jeffrey A.
Groundwater discharge impacts marine isotope budgets of Li, Mg, Ca, Sr, and Ba
Groundwater-derived solute fluxes to the ocean have long been assumed static and subordinate to riverine fluxes, if not neglected entirely, in marine isotope budgets. Here we present concentration and isotope data for Li, Mg, Ca, Sr, and Ba in coastal groundwaters to constrain the importance of groundwater discharge in mediating the magnitude and...
Mayfield, Kimberly; Eisenhauer, Anton; Santiago Ramos, Danielle P.; Higgins, John A.; Horner, Tristan; Auro, Maureen; Magna, Tomas; Moosdorf, Nils; Charette, Matthew; Gonneea Eagle, Meagan; Brady, Carolyn; Komar, Nemanja; Peucker-Ehrenbrink, Bernard; Paytan, Adina Muted responses to chronic experimental nitrogen deposition on the Colorado Plateau
Anthropogenic nitrogen (N) deposition is significantly altering both community structure and ecosystem processes in terrestrial ecosystems across the globe. However, our understanding of the consequences of N deposition in dryland systems remains relatively poor, despite evidence that drylands may be particularly vulnerable to increasing N inputs...
Phillips, Michala Lee; Winkler, Daniel E.; Reibold, Robin H.; Osborne, Brooke Bossert; Reed, Sasha
The use of continuous water-quality time-series data to compute total phosphorus loadings for the Turkey River at Garber, Iowa, 2018–20
In support of nutrient reduction efforts, total phosphorus loads and yields were computed for the Turkey River at Garber, Iowa (U.S. Geological Survey station 05412500), for January 1, 2018, to April 30, 2020, based on continuously monitored turbidity sensor data. Sample data were used to create a total phosphorus turbidity-surrogate model....
Garrett, Jessica D.
Trends in groundwater levels in and near the Rosebud Indian Reservation, South Dakota, water years 1956–2017
The U.S. Geological Survey (USGS), in cooperation with the Rosebud Sioux Tribe, completed a study to characterize water-level fluctuations in observation wells to examine driving factors that affect water levels in and near the Rosebud Indian Reservation, which comprises all of Todd County. The study investigates concerns regarding potential...
Valseth, Kristen J.; Driscoll, Daniel G.
Statistical methods for simulating structural stormwater runoff best management practices (BMPs) with the Stochastic Empirical Loading and Dilution Model (SELDM)
This report documents statistics for simulating structural stormwater runoff best management practices (BMPs) with the Stochastic Empirical Loading and Dilution Model (SELDM). The U.S. Geological Survey developed SELDM and the statistics documented in this report in cooperation with the Federal Highway Administration to indicate the risk for...
Granato, Gregory E.; Spaetzel, Alana B.; Medalie, Laura
U.S. Geological Survey Community for Data Integration 2019 Workshop Proceedings—From big data to smart data
The U.S. Geological Survey (USGS) Community for Data Integration (CDI) Workshop was held during June 3–7, 2019, at Center Green in Boulder, Colo. The theme of the workshop was “From Big Data to Smart Data” with the purpose of bringing together the community to discuss current topics, shared challenges, and steps forward to advance twenty-first...
Hsu, Leslie
Landsat collection 2
Landsat Collections ensure that all Landsat Level-1 data are consistently calibrated and processed and retain traceability of data quality provenance. Landsat Collection 2 introduces improvements that harness recent advancements in data processing, algorithm development, data access, and distribution capabilities. Collection 2 includes Landsat...
Water-resource management monitoring needs, State of Hawai‘i
In cooperation with the State of Hawai‘i Commission on Water Resource Management and in collaboration with the University of Hawaiʻi Water Resources Research Center, the U.S. Geological Survey developed a water-resource monitoring program—a rainfall, surface-water, and groundwater data-collection program—that is required to meet State needs for...
Cheng, Chui Ling; Izuka, Scot K.; Kennedy, Joseph; Frazier, Abby G. ; Giambelluca, Thomas W.
Groundwater dynamics at Kīlauea Volcano and vicinity, Hawaiʻi
Kīlauea Volcano, on the Island of Hawaiʻi, is surrounded and permeated by active groundwater systems that interact dynamically with the volcanic system. A generalized conceptual model of Hawaiian hydrogeology includes high-level dike-impounded groundwater, very permeable perched and basal aquifers, and a transition (mixing) zone between freshwater...
Patrick, Matthew R.; Orr, Tim R.; Swanson, Don; Houghton, Bruce F.; Hurwitz, Shaul; Peek, Sara E.; Scholl, Martha A.; Bergfeld, Deborah; Evans, William C.; Kauahikaua, James P.; Gingerich, Stephen B.; Hsieh, Paul A.; Lee, R. Lopaka; Younger, Edward F.; Ingebritsen, Steven E.
The 2008–2018 summit lava lake at Kīlauea Volcano, Hawai‘i
The 2008–2018 lava lake at the summit of Kīlauea marked the longest sustained period of lava lake activity at the summit in decades and provided a new opportunity for observing and understanding lava lake behavior. The individual chapters of this Professional Paper volume cover the basic chronology of the eruption, rich historical background,...
Patrick, Matthew R.; Orr, Tim R.; Swanson, Don; Houghton, Bruce F.