Daniel R Obenour

High‐Resolution Soil Total Phosphorus Mapping for the Conterminous USA Using Machine Learning

Onwuka, I. S., Obenour, D. R., Nelson, N. G., & Duckworth, O. W. (2026, January 1). Journal of Geophysical Research Biogeosciences, Vol. 1.

A critical eutrophication–climate change link

Nature Sustainability, 8(3), 222–223.

A flexible modeling approach for evaluating the effects of hypoxia and other factors on the spatial distributions of brown shrimp Farfantepenaeus aztecus and white shrimp Litopenaeus setiferus on the Louisiana shelf

Katin, A., Craig, J. K., & Obenour, D. R. (2025, November 1). Marine and Coastal Fisheries.

Comparison of Random Forest and Inverse Distance Weighting to Map Soil Phosphorus across the Conterminous USA

International Symposium on Soil and Plant Analysis. Presented at the International Symposium on Soil and Plant Analysis, Durham, NC.

Data from: High-resolution soil total phosphorus mapping for the conterminous USA using machine learning

Onwuka, I., Obenour, D., Nelson, N., & Duckworth, O. (2025, December 22). DRYAD, Vol. 12.

Exploring Algal–Nutrient Patterns Across an Estuarine Biogeochemical Gradient

Annual Southeastern Biogeochemistry Symposium. Presented at the Annual Southeastern Biogeochemistry Symposium, Raleigh, NC.

Exploring algal-nutrient relationships along the freshwater-marine continuum

ASLO Aquatic Sciences Meeting. Presented at the ASLO Aquatic Sciences Meeting, Charlotte, NC.

Exploring internal phosphorus loads and management interventions through Bayesian reservoir modeling

Borah, S. S., Giudice, D. D., Aupperle, M., & Obenour, D. R. (2025, April 30). Journal of Environmental Management, Vol. 384.

Identification of Priority Lakes and Watersheds for Nutrient Intervention

Sustainable Phosphorus Alliance Phosphorus Forum. Presented at the Sustainable Phosphorus Alliance Phosphorus Forum, Raleigh, NC.

Quantifying Summer Internal Phosphorus Loading in Large Lakes across the United States

Borah, S. S., Nelson, N. G., Duckworth, O. W., & Obenour, D. R. (2025, May 20). Environmental Science & Technology, Vol. 5.

Reducing Nutrient Inputs to Coastal and Inland Waters: How Hard Can It Be?

ASLO 2025 Aquatic Sciences Meeting. Presented at the ASLO 2025 Aquatic Sciences Meeting, Charlotte, NC.

Refining chlorophyll-nutrient relationships across the US considering the effects of depth, light availability, temperature, and trophic status

ASLO Aquatic Sciences Meeting. Presented at the ASLO Aquatic Sciences Meeting, Charlotte, NC.

Characterizing Spatiotemporal Variability in Phosphorus Export across the United States through Bayesian Hierarchical Modeling

Karimi, K., & Obenour, D. R. (2024, May 17). Environmental Science & Technology, Vol. 5.

Effective Nutrient Management of Surface Waters in the United States Requires Expanded Water Quality Monitoring in Agriculturally Intensive Areas

Oates, C., Fajardo, H., Grieger, K., Obenour, D., Muenich, R. L., & Nelson, N. G. (2024, November 28). ACS Environmental Au, Vol. 11.

Nutrient monitoring in surface waters of agriculturally-intensive regions of the U.S.: Current status and needs for expansion

AGU Fall Meeting. Presented at the AGU Fall Meeting, Washington, DC.

Nutrient source apportionment through process-based modeling and isotopic source tracing in a sparsely monitored agricultural watershed

Annual International Meeting ASABE. Presented at the Annual International Meeting ASABE, Anaheim, CA.

Phosphorus source apportionment in a sparsely monitored agricultural watershed

NC Water Resources Research Institute (WRRI) Annual Conference. Presented at the NC Water Resources Research Institute (WRRI) Annual Conference, Raleigh, NC.

Predicting HAB Risks along the Freshwater-marine Gradient of the Pamlico River Estuary

North Carolina Coastal Conference. Presented at the North Carolina Coastal Conference, New Bern, NC.

Relationships between soil test phosphorus and county‐level agricultural surplus phosphorus

Journal of Environmental Quality, 53(6), 1127–1139.

Trends and drivers of hypoxic thickness and volume in the Northern Gulf of Mexico: 1985-2018

Matli, V. R. R., & Obenour, D. (2024, April 15).

Trends and drivers of hypoxic thickness and volume in the northern Gulf of Mexico: 1985–2018

Matli, V. R. R., & Obenour, D. (2024, December 5). (A. A. Pokkathappada, Ed.). PLoS ONE, Vol. 19.

Water Quality along the Pamlico River Estuary: State-of-the-Art Technologies and Community Partnerships

NC Coastal Conference. Presented at the NC Coastal Conference, New Bern, NC.

Water quality–fisheries tradeoffs in a changing climate underscore the need for adaptive ecosystem–based management

Scavia, D., Ludsin, S. A., Michalak, A. M., Obenour, D. R., Han, M., Johnson, L. T., … Zhou, Y. (2024, October 28). Proceedings of the National Academy of Sciences, Vol. 121.

An estuary stress index based on nekton relationships with thematic watershed stressors

Li, K., Blackhart, K., Miller, J., & Obenour, D. (2023, July 23). Ecological Indicators, Vol. 154.

Are legacy phosphorus predictive of in situ phosphorus concentration?

NC Commodities Conference. Presented at the NC Commodities Conference, Durham, NC.

Assessing Uncertainties in Internal Phosphorus Loading Estimates in Large Lakes and Reservoirs across the United States

AGU Fall Meeting. Presented at the AGU Fall Meeting, San Francisco, CA.

Bayesian hierarchical modeling characterizes spatio-temporal variability in phosphorus export across the contiguous United States

Karimi, K., & Obenour, D. (2023, February 25).

Convergent Research to Manage Human Interactions with the Phosphorus Cycle

American Geophysical Union Fall Meeting. Presented at the American Geophysical Union Fall Meeting, San Francisco, CA.

Coupling process-based modeling and isotopic source tracking for phosphate source attribution in an agricultural watershed

American Society of Agricultural and Biological Engineers. Poster presented at the American Society of Agricultural and Biological Engineers, Omaha, NE.

Estimating and Projecting Internal Phosphorus Loading in Piedmont Reservoirs

Falls Lake Nutrient Management Study Research Symposium. Presented at the Falls Lake Nutrient Management Study Research Symposium, Chapel Hill, NC.

Estimating the benefits of stream water quality improvements in urbanizing watersheds: An ecological production function approach

Haefen, R. H., Houtven, G. V., Naumenko, A., Obenour, D. R., Miller, J. W., Kenney, M. A., … Waters, H. (2023, April 24). Proceedings of the National Academy of Sciences.

Modeling Phosphorus Export from Anthropogenic and Geogenic Sources across the United States

AGU Fall Meeting. Presented at the AGU Fall Meeting, San Francisco, CA.

Multi-fidelity techniques to improve prediction of hydrological and water quality models, decision support and risk analysis, and their Bayesian applications

EGU General Assembly. Presented at the EGU General Assembly, Vienna, Austria.

The Intersection of Machine Learning and Process-based Water Resources Modeling

Environmental, Water Resources, and Coastal Engineering Seminar. Presented at the Environmental, Water Resources, and Coastal Engineering Seminar, NC State University, Raleigh, NC.

Variability of Internal Phosphorus Loading in Large Water Bodies across the United States

Recycle 2023 Conference. Online. presented at the Recycle 2023 Conference, Indian Institute of Technology Guwahati, Assam, India.

Watershed Modeling to Inform Jordan Lake Nutrient Management

Jordan Lake One Water/NC DEQ DWR Stakeholder meeting. Presented at the Jordan Lake One Water/NC DEQ DWR Stakeholder meeting, Chapel Hill, NC.

Advancing freshwater ecological forecasts: Harmful algal blooms in Lake Erie

Scavia, D., Wang, Y.-C., & Obenour, D. R. (2022, September 22). The Science of The Total Environment, Vol. 856.

Are Legacy Phosphorus Estimates Predictive of in situ Soil Phosphorus Concentrations?

AGU Fall Meeting. Presented at the AGU Fall Meeting, Chicago, IL.

Contrasting Annual and Summer Phosphorus Export Using a Hybrid Bayesian Watershed Model

Karimi, K., Miller, J. W., Sankarasubramanian, A., & Obenour, D. R. (2022, December 23). Water Resources Research, Vol. 59.

Estimating spatial and temporal variability of Phosphorus hydrologic losses across the contiguous United States

Sustainable Phosphorus Summit. Presented at the Sustainable Phosphorus Summit, Raleigh, NC.

Per- and polyfluoroalkyl substances (PFAS) in river discharge: Modeling loads upstream and downstream of a PFAS manufacturing plant in the Cape Fear watershed, North Carolina

Pétré, M.-A., Salk, K. R., Stapleton, H. M., Ferguson, P. L., Tait, G., Obenour, D. R., … Genereux, D. P. (2022, March 23). The Science of The Total Environment, Vol. 831.

Temporally resolved coastal hypoxia forecasting and uncertainty assessment via Bayesian mechanistic modeling

Katin, A., Giudice, D. D., & Obenour, D. R. (2022, February 28). Hydrology and Earth System Sciences, Vol. 26, pp. 1131–1143.

Assessing inter-annual variability in nitrogen sourcing and retention through hybrid Bayesian watershed modeling

Hydrology and Earth System Sciences, 2.

Assessing interannual variability in nitrogen sourcing and retention through hybrid Bayesian watershed modeling

Miller, J. W., Karimi, K., Sankarasubramanian, A., & Obenour, D. R. (2021, May 26). Hydrology and Earth System Sciences, Vol. 25, pp. 2789–2804.

Daily hypoxia forecasting and uncertainty assessment via Bayesian mechanistic model for the Northern Gulf of Mexico

Katin, A., Giudice, D. D., & Obenour, D. R. (2021, April 29).

Simulating algal dynamics within a Bayesian framework to evaluate controls on estuary productivity

Katin, A., Giudice, D. D., Hall, N. S., Paerl, H. W., & Obenour, D. R. (2021, March 5). Ecological Modelling, Vol. 447.

Supplementary material to "Assessing inter-annual variability in nitrogen sourcing and retentionthrough hybrid Bayesian watershed modeling"

Miller, J. W., Karimi, K., Sankarasubramanian, A., & Obenour, D. R. (2021, February 9).

Supplementary material to "Daily hypoxia forecasting and uncertainty assessment via Bayesian mechanistic model for the Northern Gulf of Mexico"

Katin, A., Giudice, D. D., & Obenour, D. R. (2021, April 29).

Application of packed bed reactor theory and Bayesian inference to upweller culture of juvenile oysters

Campbell, M. D., Hall, S. G., & Obenour, D. R. (2020, June 2). Aquacultural Engineering, Vol. 90.

Assessing within-lake nutrient cycling through multi-decadal Bayesian mechanistic modeling

Obenour, D., Giudice, D. D., Aupperle, M., & Sankarasubramanian, A. (2020, March 9).

Elucidating controls on cyanobacteria bloom timing and intensity via Bayesian mechanistic modeling

Giudice, D. D., Fang, S., Scavia, D., Davis, T. W., Evans, M. A., & Obenour, D. R. (2020, September 24). The Science of The Total Environment, Vol. 755.

Exploring nutrient and light limitation of algal production in a shallow turbid reservoir

Han, Y., Aziz, T. N., Giudice, D. D., Hall, N. S., & Obenour, D. R. (2020, December 4). Environmental Pollution, Vol. 269.

Fusion-Based Hypoxia Estimates: Combining Geostatistical and Mechanistic Models of Dissolved Oxygen Variability

Matli, V. R. R., Laurent, A., Fennel, K., Craig, K., Krause, J., & Obenour, D. R. (2020, September 3). Environmental Science & Technology, Vol. 54, pp. 13016–13025.

Quantifying uncertainty cascading from climate, watershed, and lake models in harmful algal bloom predictions

Scavia, D., Wang, Y.-C., Obenour, D. R., Apostel, A., Basile, S. J., Kalcic, M. M., … Steiner, A. L. (2020, November 11). The Science of The Total Environment, Vol. 759.

Assessing potential anthropogenic drivers of ecological health in Piedmont streams through hierarchical modeling

Miller, J. W., Paul, M. J., & Obenour, D. R. (2019, September 19). Freshwater Science, Vol. 38, pp. 771–789.

Assessing vertical diffusion and cyanobacteria bloom potential in a shallow eutrophic reservoir

Han, Y., Smithheart, J. W., Smyth, R. L., Aziz, T. N., & Obenour, D. R. (2019, December 20). Lake and Reservoir Management, Vol. 36, pp. 169–185.

Bayesian mechanistic modeling characterizes Gulf of Mexico hypoxia: 1968–2016 and future scenarios

Giudice, D. D., Matli, V. R. R., & Obenour, D. R. (2019, November 2). Ecological Applications, Vol. 30.

Hierarchical modeling assessment of the influence of watershed stressors on fish and invertebrate species in Gulf of Mexico estuaries

Ecological Indicators, 90, 142–153.

Hypoxic volume is more responsive than hypoxic area to nutrient load reductions in the northern Gulf of Mexico—and it matters to fish and fisheries

Scavia, D., Justić, D., Obenour, D. R., Craig, J. K., & Wang, L. (2018, December 18). Environmental Research Letters, Vol. 14.

Leveraging Spatial and Temporal Variability to Probabilistically Characterize Nutrient Sources and Export Rates in a Developing Watershed

Strickling, H. L., & Obenour, D. R. (2018, July 1). Water Resources Research.

Relating soil geochemical properties to arsenic bioaccessibility through hierarchical modeling

Journal of Toxicology and Environmental Health, Part A, 81(6), 160–172.

Space-Time Geostatistical Assessment of Hypoxia in the Northern Gulf of Mexico

Matli, V. R. R., Fang, S., Guinness, J., Rabalais, N. N., Craig, J. K., & Obenour, D. R. (2018, September 28). Environmental Science & Technology, Vol. 52, pp. 12484–12493.

Ensemble modeling informs hypoxia management in the northern Gulf of Mexico

Scavia, D., Bertani, I., Obenour, D. R., Turner, R. E., Forrest, D. R., & Katin, A. (2017, July 31). Proceedings of the National Academy of Sciences.

Ensemble modeling informs hypoxia management in the northern Gulf of Mexico

Proceedings of the National Academy of Sciences, 201705293.

Relationship Between Total and Bioaccessible Lead on Children’s Blood Lead Levels in Urban Residential Philadelphia Soils

Bradham, K. D., Nelson, C. M., Kelly, J., Pomales, A., Scruton, K., Dignam, T., … Thomas, D. J. (2017, August 8). Environmental Science & Technology.

Relationship Between Total and Bioaccessible Lead on Children�s Blood Lead Levels in Urban Residential Philadelphia Soils

Environmental Science & Technology, 51(17), 10005–10011.

Tracking cyanobacteria blooms: Do different monitoring approaches tell the same story?

Science of the Total Environment, 575, 294–308.

Non-Point Source Evaluation of Groundwater Contamination from Agriculture under Geologic and Hydrologic Uncertainty

Ayub, R., Obenour, D. R., Messier, K. P., Serre, M. L., & Mahinthakumar, K. (2016, May 16). World Environmental and Water Resources Congress 2016, pp. 329–336.

Probabilistically assessing the role of nutrient loading in harmful algal bloom formation in western Lake Erie

Bertani, I., Obenour, D. R., Steger, C. E., Stow, C. A., Gronewold, A. D., & Scavia, D. (2016, May 5). Journal of Great Lakes Research.

Probabilistically assessing the role of nutrient loading in harmful algal bloom formation in western Lake Erie

Journal of Great Lakes Research, 42(6), 1184–1192.

Satellite‐based empirical models linking river plume dynamics with hypoxic area and volume

Geophysical Research Letters, 43(6), 2693–2699.

Tracking cyanobacteria blooms: Do different monitoring approaches tell the same story?

Bertani, I., Steger, C. E., Obenour, D. R., Fahnenstiel, G. L., Bridgeman, T. B., Johengen, T. H., … Scavia, D. (2016, October 12). The Science of The Total Environment.

Assessing biophysical controls on Gulf of Mexico hypoxia through probabilistic modeling

Ecological Applications, 25(2), 492–505.

Independent Data Validation of an in Vitro Method for the Prediction of the Relative Bioavailability of Arsenic in Contaminated Soils

Bradham, K. D., Nelson, C., Juhasz, A. L., Smith, E., Scheckel, K., Obenour, D. R., … Thomas, D. J. (2015, May 12). Environmental Science & Technology.

Independent data validation of an in vitro method for the prediction of the relative bioavailability of arsenic in contaminated soils

Environmental Science & Technology, 49(10), 6312–6318.

Mapping the spatial distribution of the biomass and filter-feeding effect of invasive dreissenid mussels on the winter-spring phytoplankton bloom in Lake Michigan

Freshwater Biology, 60(11), 2270–2285.

Mapping the spatial distribution of the biomass and filter‐feeding effect of invasive dreissenid mussels on the winter‐spring phytoplankton bloom in Lake Michigan

Rowe, M. D., Obenour, D. R., Nalepa, T. F., Vanderploeg, H. A., Yousef, F., & Kerfoot, W. C. (2015, August 6). Freshwater Biology.

Using a Bayesian hierarchical model to improve Lake Erie cyanobacteria bloom forecasts

Water Resources Research, 50(10), 7847–7860.

A Scenario and Forecast Model for Gulf of Mexico Hypoxic Area and Volume

Environmental Science & Technology, 47(18), 10423–10428.

Correction to Spatial and Temporal Trends in Lake Erie Hypoxia, 1987–2007

Environmental Science & Technology, 47(9), 4958–4958.

Retrospective Analysis of Midsummer Hypoxic Area and Volume in the Northern Gulf of Mexico, 1985–2011

Environmental Science & Technology, 47(17), 9808–9815.

Quantifying the Impacts of Stratification and Nutrient Loading on Hypoxia in the Northern Gulf of Mexico

Environmental Science & Technology, 46(10), 5489–5496.

Spatial and Temporal Trends in Lake Erie Hypoxia, 1987–2007

Environmental Science & Technology, 47(2), 899–905.

From a NEXRAD rainfall map to a flood inundation map

Journal of Hydrologic Engineering, 11(1), 37–45.

An Interface Data Model for HEC-HMS

Proc. AWRA 2004 Annual Conference.