B002
Advances in Driver Attribution Studies to Support Water Quality Improvement

Session ID#: 158251

Session Description:
Trends in groundwater and surface water biogeochemistry signals, including constituent (e.g. nutrients, salinity, metals) concentrations or loads or shifts in pH and oxygen status have important implications for water quality and aquatic ecosystems. Trends are controlled by a wide array of factors including geomorphological, hydrological, biogeochemical, climatic, and anthropogenic processes. This session seeks contributions that address model development and key drivers of temporal and spatial changes in water quality indicators at larger spatial scales, with an objective to advance our understanding of key mechanisms that lead to changes in water quality. Consideration of studies that address 1) anthropogenic drivers (BMPs, conservation practices, dam construction, groundwater extraction) and those less controlled by humans (climate change, groundwater/surface interactions), 2) exploration of processes, drivers, or factors, which are not measured or well-represented in typical national-scale geospatial datasets, and 3) studies that can facilitate discussion on process-based versus machine learning models are welcome.
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0496 Water quality [BIOGEOSCIENCES]
1831 Groundwater quality [HYDROLOGY]
1871 Surface water quality [HYDROLOGY]

Primary Convener:  Sarah M Stackpoole, USGS Geological Survey, Menlo Park, CA, United States and Lin, Jiajia
Conveners:  Jiajia Lin, Oak Ridge Institute for Science and Education, Oak Ridge, TN, United States, Jana Compton, U.S. Environmental Protection Agency, Pacific Ecological Systems Division, Corvallis, United States, Robert Daniel Sabo, U.S. Environmental Protection Agency, Washington, DC, United States and Lin, Jiajia
 
The Roles of Forests on Water Supply and Quality Across the Mississippi River Basin: a Quantitative Assessment with DLEM Model. (1173206)
Zihao Bian, USDA Forest Service, Eastern Forest Environmental Threat Assessment Center, Research Triangle Park, United States; Boston College, Department of Earth and Environmental Sciences, Boston, United States, Hanqin Tian, Boston College, Schiller Institute for Integrated Science and Society, Department of Earth and Environmental Sciences, Chestnut Hill, United States, Ge Sun, USDA Forest Service, Eastern Forest Environmental Threat Assessment Center, Research Triangle Park, NC, United States, Steve McNulty, USDA Forest Service, Eastern Forest Environmental Threat Assessment Center, Southern Research Station, Rtp, NC, United States, Shufen Pan, Auburn University, International Center for Climate and Global Change Research and College of Forestry, Wildlife and Environment, Auburn, United States and Peter V Caldwell, USDA Forest Service, Southern Research Station, Otto, United States
 
Spatial and temporal patterns of groundwater-transported nitrogen loading, travel time, and flowpath depth - and their response to management actions - in watersheds across coastal Connecticut (1180227)
Janet R Barclay, USGS New England Water Science Center, East Hartford, United States, John R Mullaney, USGS Connecticut Water Science Center, East Hartford, CT, United States and Madeleine J Holland, USGS New England Water Science Center - Massachusetts Office, Northborough, United States
 
Hydrology Predominates over Harvesting and Physiography to Control Water Quality and Treatability in Forested Watersheds on Canada’s Pacific Coast (1049146)
Alyssa Bourgeois1, Suzanne Tank1, Bill C Floyd2, David Olefeldt3, Monica B Emelko4 and Fariba Amiri4, (1)University of Alberta, Department of Biological Sciences, Edmonton, AB, Canada, (2)Vancouver Island University, Coastal Hydrology Research Lab, Nanaimo, BC, Canada, (3)University of Alberta, Department of Renewable Resources, Edmonton, AB, Canada, (4)University of Waterloo, Civil and Environmental Engineering, Waterloo, ON, Canada
 
A Bayesian Hierarchical Approach to understanding concentration, flux and processing of fluvial in UK rivers (Invited) (1052732)
Fred Worrall, University of Durham, Durham, United Kingdom
 
Developing Typologies of River Silicon Seasonality Across Biomes to Understand Controls on Changing Exports. (1109517)
Keira Johnson, Oregon State University, Corvallis, OR, United States, Joanna C Carey, Babson College, Mathematics and Science Division, Babson Park, MA, United States, KathiJo Jankowski, USGS Upper Midwest Environmental Sciences Center, La Crosse, WI, United States, Paul Julian, Sanibel-Captiva Conservation Foundation, Sanibel, United States, Ruth Chaves Heindel, Kenyon College, Environmental Studies Program, Gambier, OH, United States, Jeremy Jones, University of Alaska Fairbanks, Fairbanks, AK, United States, William H McDowell, University of New Hampshire, Department of Natural Resources and the Environment, Durham, NH, United States, Benjamin W Abbott, Brigham Young University, Department of Plant and Wildlife Sciences, Provo, United States, Diane M McKnight, University of Colorado Boulder, Civil, Environmental, and Architectural Engineering, Boulder, United States, Lienne Sethna, Indiana University, Bloomington, IN, United States, Arial Shogren, University of Alabama, Biological Sciences, Tuscaloosa, United States, Patrick Thomas, University of Oldenburg, Oldenburg, Germany, Adam S Wymore, University of New Hampshire, Department of Natural Resources and the Environment, Durham, United States and Pamela Sullivan, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States
 
Key Descriptors of Nutrient Concentrations in Flood-Impacted Surface Waters (1116925)
Emine Fidan, North Carolina State University Raleigh, Raleigh, NC, United States, Ryan E Emanuel, Duke University, Durham, United States, Brian J Reich, North Carolina State University Raleigh, Statistics, Raleigh, NC, United States, Angela Harris, North Carolina State University Raleigh, Department of Civil, Construction, and Environmental Engineering, Raleigh, NC, United States and Natalie Nelson, North Carolina State University Raleigh, Raleigh, United States
 
Escherichia coli Drivers in Surface Water in Arid and Semiarid Regions of Arizona (1120978)
Maria Menchu, Arizona State University, Hydrosystems Engineering, Tempe, AZ, United States, Enrique R Vivoni, Arizona State University, School of Sustainable Engineering and the Built Environment, Tempe, AZ, United States and Rebecca Logsdon Muenich, Arizona State University, School of Sustainable Engineering and the Built Environment, Ira A. Fulton Schools of Engineering, Tempe, United States
 
The source of phosphorus in an agricultural area revealed by oxygen isotope ratio of phosphate signatures (1121681)
Shinah Lee, University of Florida, Engineering School of Sustainable Infrastructure & Environment, Gainesville, United States, Natalie Nelson, North Carolina State University Raleigh, Raleigh, United States, Rebecca Logsdon Muenich, Arizona State University, School of Sustainable Engineering and the Built Environment, Ira A. Fulton Schools of Engineering, Tempe, United States, Daniel R Obenour, North Carolina State University Raleigh, Civil, Construction and Environmental Engineering, Raleigh, United States and Elise S Morrison, University of Florida, Ft Walton Beach, United States
 
Transferability of Machine Learning-Based Frameworks in Watershed-Scale Water Quality Predictions (1150446)
Itunu Adedeji, FAMU-FSU College of Engineering, Tallahassee, United States and Ebrahim Ahmadisharaf, FAMU-FSU College of Engineering, Department of Civil and Environmental Engineering, Tallahassee, United States
 
Using Data Analytics to Assess Drivers of Spatiotemporal Variability in Drinking Water Quality in the United States (1160079)
John Malito1, Bridget R Scanlon2, Sarah Fakhreddine3, Robert C Reedy2 and Qian Yang2, (1)University of Texas, Jackson School of Geosciences, Bureau of Economic Geology, Austin, United States, (2)University of Texas at Austin, Bureau of Economic Geology, Jackson School of Geosciences, Austin, TX, United States, (3)University of Texas at Austin, Jackson School of Geosciences, Austin, United States
 
Global change effects on calcium promotes shifts in zooplankton community compositions in northern lakes (Invited) (1160230)
Irena F Creed1, Ann-Kristin Bergström2, Aleksey Paltsev3, Dag Olav Hessen4, Heleen De Wit5, Danny CP Lau6, Tobias Vrede6, Stina Drakare6, Anders Jonsson2, Peter DF Isles7, Erik Geibrink2, Pirkko Kortelainen8, Jussi Vuorenmaa8 and Kristiina Vuorio8, (1)University of Toronto, Toronto, ON, Canada, (2)Umeå University, Department of Ecology and Environmental Science, Umeå, Sweden, (3)University of Saskatchewan, School of Environment and Sustainability, Saskatoon, SK, Canada, (4)University of Oslo, Oslo, Norway, (5)Norwegian Institute for Water Research, Catchment processes, Oslo, Norway, (6)SLU Swedish University of Agricultural Sciences Uppsala, Department of Aquatic Sciences and Assessment, Uppsala, Sweden, (7)Vermont Department of Environmental Conservation, Watershed Management Division, Montpelier, United States, (8)Finnish Environment Institute, Helsinki, Finland
 
Characterizing Dynamics of Edge-of-Field Nitrogen/Phosphorus Ratios via Random Forest (1161634)
Qiang Li1, Matthew Ruark1, Anita Thompson2, Amber Radatz3, Eric Cooley3, Timothy Radatz4 and Kelsey Kruger1, (1)University of Wisconsin-Madison, Soil Science, Madison, United States, (2)University of Wisconsin-Madison, Biological Systems Engineering, Madison, United States, (3)University of Wisconsin-Extension, Discovery Farms, Pigeon Falls, United States, (4)Discovery Farms Minnesota, Eagan, United States
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