Publications
Publications
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Regression relations and long-term water-quality constituent concentrations, loads, yields, and trends in the North Fork Ninnescah River, south-central Kansas, 1999–2019 Regression relations and long-term water-quality constituent concentrations, loads, yields, and trends in the North Fork Ninnescah River, south-central Kansas, 1999–2019
Cheney Reservoir, in south-central Kansas, is the primary water supply for the city of Wichita, Kansas. The North Fork Ninnescah River is the largest tributary to Cheney Reservoir and contributes about 70 percent of the inflow. The U.S. Geological Survey, in cooperation with the City of Wichita, has been continuously monitoring water quality (including water temperature, specific...
Authors
Ariele R. Kramer, Brian J. Klager, Mandy L. Stone, Patrick J. Eslick-Huff
Linear regression model documentation and updates for computing water-quality constituent concentrations or densities using continuous real-time water-quality data for the Kansas River, Kansas, July 2012 through September 2019 Linear regression model documentation and updates for computing water-quality constituent concentrations or densities using continuous real-time water-quality data for the Kansas River, Kansas, July 2012 through September 2019
The Kansas River provides drinking water to about 800,000 people in northeastern Kansas. Water-treatment facilities that use the Kansas River as a water-supply source use chemical and physical processes during water treatment to remove contaminants before public distribution. Advanced notification of changing water-quality conditions near water-supply intakes allows water-treatment...
Authors
Thomas J. Williams
Assessment of water availability in the Osage Nation using an integrated hydrologic-flow model Assessment of water availability in the Osage Nation using an integrated hydrologic-flow model
The Osage Nation of northeastern Oklahoma, conterminous with Osage County, covers about 2,900 square miles. The area is primarily rural with 62 percent of the land being native prairie grass, and much of the area is used for cattle ranching and extraction of petroleum and natural gas. Protection of water rights are important to the Osage Nation because of its reliance on cattle ranching...
Authors
Jonathan P. Traylor, Shana L. Mashburn, Randall T. Hanson, Steven M. Peterson
The tide turns: Episodic and localized cross-contamination of a California coastline with cyanotoxins The tide turns: Episodic and localized cross-contamination of a California coastline with cyanotoxins
The contamination of coastal ecosystems from a variety of toxins of marine algal origin is a common and well-documented situation along the coasts of the United States and globally. The occurrence of toxins originating from cyanobacteria along marine coastlines is much less studied, and little information exists on whether toxins from marine and freshwater sources co-occur regularly. The...
Authors
Avery O. Tatters, Jayme Smith, Raphael M. Kudela, Kendra Hayashi, Meredith D. A. Howard, Ariel Donovan, Keith A. Loftin, David A. Caron
Spatial and temporal variability of nutrients and algae in the Republican River and Milford Lake, Kansas, June through November 2017 and May through November 2018 Spatial and temporal variability of nutrients and algae in the Republican River and Milford Lake, Kansas, June through November 2017 and May through November 2018
Milford Lake has been listed as impaired and designated hypereutrophic because of excessive nutrient loading, specifically biologically available orthophosphate. It is the largest lake by surface area in Kansas and is a reservoir built for purposes including water supply and recreation. In 2015, the Kansas Department of Health and Environment (KDHE) divided the lake into three zones...
Authors
Brianna M. Leiker, Justin R. Abel, Jennifer L. Graham, Guy M. Foster, Lindsey R. King, Tom C. Stiles, Riley P. Buley
Environmental and anthropogenic drivers of contaminants in agricultural watersheds with implications for land management Environmental and anthropogenic drivers of contaminants in agricultural watersheds with implications for land management
If not managed properly, modern agricultural practices can alter surface and groundwater quality and drinking water resources resulting in potential negative effects on aquatic and terrestrial ecosystems. Exposure to agriculturally derived contaminant mixtures has the potential to alter habitat quality and negatively affect fish and other aquatic organisms. Implementation of conservation...
Authors
Kelly L. Smalling, Olivia Devereux, Stephanie E. Gordon, Patrick J. Phillips, Vicki S. Blazer, Michelle L. Hladik, Dana W. Kolpin, Michael T. Meyer, Adam Sperry, Tyler Wagner
By
Ecosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Central Plains Water Science Center, California Water Science Center, Central Midwest Water Science Center, Chesapeake Bay Activities, Eastern Ecological Science Center, New Jersey Water Science Center, New York Water Science Center, Pennsylvania Water Science Center
Evaluation of a satellite-based cyanobacteria bloom detection algorithm using field-measured microcystin data Evaluation of a satellite-based cyanobacteria bloom detection algorithm using field-measured microcystin data
Widespread occurrence of cyanobacterial harmful algal blooms (CyanoHABs) and the associated health effects from potential cyanotoxin exposure has led to a need for systematic and frequent screening and monitoring of lakes that are used as recreational and drinking water sources. Remote sensing-based methods are often used for synoptic and frequent monitoring of CyanoHABs. In this study...
Authors
Sachidananda Mishra, Richard P. Stumpf, Blake Schaeffer, P. Jeremy Werdell, Keith A. Loftin, Andrew Meredith
Multiple co-occurring and persistently detected cyanotoxins and associated cyanobacteria in adjacent California lakes Multiple co-occurring and persistently detected cyanotoxins and associated cyanobacteria in adjacent California lakes
The global proliferation of toxin producing cyanobacterial blooms has been attributed to a wide variety of environmental factors with nutrient pollution, increased temperatures, and drought being three of the most significant. The current study is the first formal assessment of cyanotoxins in two impaired lakes, Canyon Lake and Lake Elsinore, in southern California that have a history of
Authors
Meredith D. A. Howard, Raphael M. Kudela, Kendra Hayashi, Avery O. Tatters, David A. Caron, Susanna Theroux, Stuart Oehrle, Miranda Roethler, Ariel Donovan, Keith A. Loftin, Zachary R. Laughrey
Streamflow—Water year 2019 Streamflow—Water year 2019
The maps and graphs in this summary describe national streamflow conditions for water year 2019 (October 1, 2018, to September 30, 2019) in the context of streamflow ranks relative to the 90-year period of water years 1930–2019. Annual runoff in the Nation’s rivers and streams during water year 2019 (13.62 inches) was much higher than the long-term (1930–2019) mean annual runoff of 9.37...
Authors
Xiaodong Jian, David M. Wolock, Harry F. Lins, Steven J. Brady
Interpretation of hydrogeologic data to support groundwater management, Bazile Groundwater Management Area, northeast Nebraska, 2019—A case demonstration of the Nebraska Geocloud Interpretation of hydrogeologic data to support groundwater management, Bazile Groundwater Management Area, northeast Nebraska, 2019—A case demonstration of the Nebraska Geocloud
Nitrate, age tracer, and continuous groundwater-level data were interpreted in conjunction with airborne electromagnetic (AEM) survey data to understand the movement of nitrate within the Bazile Groundwater Management Area (BGMA) in northeastern Nebraska. Previously published age tracer data and nitrate data indicated vertical stratification of groundwater quality. Younger groundwater...
Authors
Christopher M. Hobza, Gregory V. Steele
Exploring the potential value of satellite remote sensing to monitor chlorophyll-a for U.S. lakes and reservoirs Exploring the potential value of satellite remote sensing to monitor chlorophyll-a for U.S. lakes and reservoirs
Assessment of chlorophyll-a, an algal pigment, typically measured by field and laboratory in situ analyses, is used to estimate algal abundance and trophic status in lakes and reservoirs. In situ-based monitoring programs can be expensive, may not be spatially, and temporally comprehensive and results may not be available in the timeframe needed to make some management decisions, but can...
Authors
Michael Papenfus, Blake Schaeffer, Amina Pollard, Keith A. Loftin
Ecological forecasting—21st century science for 21st century management Ecological forecasting—21st century science for 21st century management
Natural resource managers are coping with rapid changes in both environmental conditions and ecosystems. Enabled by recent advances in data collection and assimilation, short-term ecological forecasting may be a powerful tool to help resource managers anticipate impending near-term changes in ecosystem conditions or dynamics. Managers may use the information in forecasts to minimize the...
Authors
John B. Bradford, Jake Weltzin, Molly L. McCormick, Jill Baron, Zack Bowen, Sky Bristol, Daren M. Carlisle, Theresa Crimmins, Paul C. Cross, Joe DeVivo, Mike Dietze, Mary Freeman, Jason Goldberg, Mevin Hooten, Leslie Hsu, Karen Jenni, Jennifer L. Keisman, Jonathan G. Kennen, Kathy Lee, David P. Lesmes, Keith A. Loftin, Brian W. Miller, Peter S. Murdoch, Jana Newman, Karen L. Prentice, Imtiaz Rangwala, Jordan Read, Jennifer Sieracki, Helen Sofaer, Steve Thur, Gordon Toevs, Francisco Werner, C. LeAnn White, Timothy White, Mark T. Wiltermuth
By
Ecosystems Mission Area, Water Resources Mission Area, Science Synthesis, Analysis, and Research Program, Contaminant Biology, Environmental Health Program, Science Analytics and Synthesis (SAS) Program, Central Plains Water Science Center, Eastern Ecological Science Center, Fort Collins Science Center, Maryland-Delaware-D.C. Water Science Center, National Wildlife Health Center, New Jersey Water Science Center, Pacific Island Ecosystems Research Center, Southwest Biological Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center