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Records 1 to 25 of 195 records from author John Johnston

2024
Ghimire, S., B. Schumacher, S. Swanson, R. Hall, E. Hall, J. Zambrana, AND J. Johnston. Assessing Riparian Functioning Condition for Improved Ecosystem Services: A Case Study in the Southeastern USA. 2024 International Congress on Environmental Modelling and Software Annual Meeting, East Lansing, MI, June 23 - 27, 2024.
Bawa, A., K. Mendoza, R. Srinivasan, R. Parmar, D. Smith, K. Wolfe, J. Johnston, AND J. Corona. Calibration using R-programming and parallel processing at the HUC12 subbasin scale in the Mid-Atlantic region: Development of national SWAT hydrologic calibration. ENVIRONMENTAL MODELLING & SOFTWARE. Elsevier Science, New York, NY, 176:106019, (2024). https://doi.org/10.1016/j.envsoft.2024.106019
Smith, D., M. Cyterski, K. Wolfe, AND J. Johnston. Comparative Analysis of EPA’s New Environmental Source Apportionment Toolkit and Positive Matrix Factorization 5 Models. 2024 International Congress on Environmental Modelling and Software Annual Meeting, East Lansing, MI, June 23 - 27, 2024.
Schaeffer, B., N. Reynolds, H. Ferriby, W. Salls, D. Smith, J. Johnston, AND M. Myer. Forecasting freshwater cyanobacterial harmful algal blooms for Sentinel-3 satellite resolved U.S. lakes and reservoirs. JOURNAL OF ENVIRONMENTAL MANAGEMENT. Elsevier Science Ltd, New York, NY, 349:119518, (2024). https://doi.org/10.1016/j.jenvman.2023.119518
Venable, K. AND J. Johnston. Improving data acquisition and automation for VELMA initialization and modeling workflow (iEMSs 2024). 2024 International Congress on Environmental Modelling and Software Annual Meeting, East Lansing, MI, June 23 - 27, 2024.
Ghimire, S., K. Wolfe, J. Johnston, S. Kraemer, J. McMahan, AND A. Lindquist. Roof rainwater quality monitoring system using low-cost sensor technologies and Arduino software: A proof-of-concept. 2024 International Congress on Environmental Modelling and Software Annual Meeting, East Lansing, MI, June 23 - 27, 2024.
2023
Johnston, JohnM, S. Ghimire, AND M. Jahne. Data Extraction and Aggregation to Model Microbial Health Risk Associated with Rainwater Harvesting. International Society for Ecological Modelling Global Conference 2023, Scarborough, Ontario, CANADA, May 02 - 06, 2023.
Venable, Karretta AND JohnM Johnston. Enhancing spatial weather dynamics in the LANDIS-VELMA model linkage to assess the effects of wildfire on water quality. 2023 AMS Annual Meeting, Denver, CO, January 08 - 12, 2023.
Ferriby, H., N. Von Tress, B. Schaeffer, W. Salls, D. Smith, AND J. Johnston. Forecasting Cyanobacteria Harmful Algal Blooms Utilizing Spatio-Temporal Integrated Nested Laplace Approximation within the Contiguous United States. 2023 GEO AquaWatch, Tampa, FL, November 13, 2023.
Johnston, J., H. Golden, B. Jarvis, Y. Yuan, C. Lane, J. Christensen, AND B. Rashleigh. Gulf of Mexico Mississippi Region?USEPA/ORD Modeling Capabilities. Integrated Hydro-terrestrial Modeling 2.0, Reston, VA, October 31 - November 02, 2023.
Burke, R., J. Dunken, S. Ghimire, C. Knightes, R. Parmar, D. Smith, Karretta Venable, K. Wolfe, AND J. Johnston. HMS – Hydrologic MicroServices?Using Web Services to Construct Flexible Workflows to Simulate Environmental Flows and Contaminants in Streams. 2023 Association of Clean Water Aministrator's Water Quality Modeling Workshop, Salt Lake City, UT, October 23 - 27, 2023.
Johnston, JohnM, D. Demaree, S. Ghimire, AND M. Jahne. Predicting Microbial Health Risks from Roof Harvested Rainwater using Animal Fecal Pathogens. SWMM 56th International Conference on Water Management, Guelph (Virtual Conference), Ontario, CANADA, March 01 - 02, 2023.
Johnston, J., D. Demaree, S. Ghimire, AND M. Jahne. Risk modeling of pathogens in captured rainwater: Application of QMRA to human exposure from on-site, non-potable, fit-for-purpose reuse (ISEM 2023). International Society for Ecological Modelling Global Conference 2023, Toronto, CANADA, May 02 - 06, 2023.
Johnston, J. Risky Business? Human Health and High-Pressure Washing with Rainwater. UGA College of Public Health DrPH Honors Day and Workshop: Future of Public Health Leadership and Practice, Lawrenceville, GA, April 25, 2023.
Schaeffer, B., W. Salls, N. Von Tress, H. Ferriby, AND J. Johnston. Satellite uses for water quality. NASA HQ, EPA HQ, NOAA HQ, Washington, DC, March 13 - 16, 2023.
Schaeffer, B., W. Salls, N. Von Tress, H. Ferriby, AND J. Johnston. Satellite uses for water quality - EPA_Rec_WQ. EPA Recreational Critera Meeting, Durham, NC, June 07, 2023.
Schaeffer, B., W. Salls, N. Von Tress, H. Ferriby, AND J. Johnston. Satellite uses for water quality - NJ Water Monitoring Council Meeting. NJ Water Monitoring Council Meeting, NA, NJ, May 24, 2023.
Schaeffer, B., W. Salls, N. Von Tress, H. Ferriby, AND J. Johnston. Satellite uses for water quality - R4. Meeting with R4 Administrator, Durham, NC, May 04, 2023.
Schaeffer, B., W. Salls, N. Von Tress, H. Ferriby, AND J. Johnston. Satellite uses for water quality - Wake Forest University. Wake Forest University Biology Department Ecolunch, Durham, NC, April 12, 2023.
Demaree, D., B. Schaeffer, W. Salls, J. Johnston, R. Zimmerman, AND V. Hill. Seagrass scenarios driven with satellite derived bio-optical inputs across Tangier Sound. 2023 International Ocean Colour Science Meeting, St Petersburg, FL, November 14 - 17, 2023.
Rashleigh, B., J. Corona, B. Jarvis, J. Johnston, C. Knightes, AND R. McKane. Water Modeling at U.S. Environmental Protection Agency. Integrated Hydro-Terrestrial Modeling 2.0, Reston, VA, October 31 - November 02, 2023.
2022
Ghimire, S., A. Nayak, JohnM Johnston, R. Parmar, J. Corona, R. Srinivasan, AND K. Mendoza. Assessing Holistic Sustainability of Riparian Buffer Designs using Data Envelopment Analysis. iEMSs 2022, Brussels, BELGIUM, July 03 - 09, 2022.
Patton, Douglas A, D. Smith, M. Muche, K. Wolfe, R. Parmar, AND JohnM Johnston. Catchment scale runoff time-series generation and validation using statistical models for the Continental United States. ENVIRONMENTAL MODELLING & SOFTWARE. Elsevier Science, New York, NY, 149:105321, (2022). https://doi.org/10.1016/j.envsoft.2022.105321
Smith, D. AND JohnM Johnston. Cyanobacteria Assessment Network (CyAN) Web Application. iEMSs 2022, Brussels, BELGIUM, July 04 - 08, 2022.
Schaeffer, B., K. Wolfe, P. Whitman, J. Werdell, E. Urquhart, M. Tomlinson, R. Stumpf, D. Smith, B. Seegers, W. Salls, R. Parmar, M. Papenfus, S. Mishra, A. Meredith, K. Loftin, D. Keith, JohnM Johnston, J. Iiames, E. Hilborn, J. Darling, R. Conmy, M. Coffer, AND S. Bailey. Highlights of the Cyanobacteria Assessment Network: validation, application, and reverberation. Ocean Optics Conference, Binh Dinh, Quy Nhon, VIETNAM, October 02 - 07, 2022.