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ARS Home » Northeast Area » Beltsville, Maryland (BARC) » Beltsville Agricultural Research Center » Environmental Microbial & Food Safety Laboratory » People & Locations » Billie Morgan
Billie Morgan
Environmental Microbial & Food Safety Laboratory
Physical Scientist

Phone: (301) 504-9181
Fax:

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Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Estimating concentrations of Escherichia coli across a farm pond from the sUAS-based RGB imagery and water quality variables with machine learning techniques Reprint Icon - (Peer Reviewed Journal)
Hong, S., Morgan, B.J., Stocker, M.D., Smith, J.E., Kim, M.S., Cho, K., Pachepsky, Y.A. 2024. Estimating concentrations of Escherichia coli across a farm pond from the sUAS-based RGB imagery and water quality variables with machine learning techniques. Water Research. 260: Article e121861. https://doi.org/10.1016/j.watres.2024.121861.
Persistent patterns of E. coli concentrations in two irrigation ponds from three years of monitoring Reprint Icon - (Peer Reviewed Journal)
Stocker, M., Pachepsky, Y.A., Smith, J., Morgan, B.J., Hill, R., Kim, M.S. 2021. Persistent patterns of E. coli concentrations in two irrigation ponds from three years of monitoring. Water, Air, and Soil Pollution. https://doi.org/10.1007/s11270-021-05438-z.
Drone-based imaging to assess the microbial water quality in an irrigation pond: a pilot study Reprint Icon - (Peer Reviewed Journal)
Morgan, B.J., Stocker, M.D., Valdes-Avellan, J., Kim, M.S., Pachepsky, Y.A. 2019. Drone-based imaging to assess the microbial water quality in an irrigation pond: a pilot study. Science of the Total Environment. 716:135757. https://doi.org/10.1016/j.scitotenv.2019.135757.
Effect of shallow subsurface flow pathway networks on corn yield spatial variation under different weather and nutrient management - (Peer Reviewed Journal)
Griffith, B.J., Daughtry, C.S., Russ, A.L., Dulaney, W.P., Gish, T.J., Pachepsky, Y.A. 2019. Effect of shallow subsurface flow pathway networks on corn yield spatial variation under different weather and nutrient management. International Agrophysics. 33:271-276.
GIS-based smartphone application to support water quality data collection - (Abstract Only)
Griffith, B.J., Pachepsky, Y.A. 2017. GIS-based smartphone application to support water quality data collection. BARC Poster Day. 28th Annual BARC Poster Day, Beltsville, MD on April 26, 2017.
Effect of weather, subsurface topography and fertilizer type on corn yields at the BARC experimental OPE3 site - (Abstract Only)
Griffith, B.J., Daughtry, C.S., Dulaney, W.P., Russ, A.L., Pachepsky, Y.A. 2016. Effect of weather, subsurface topography and fertilizer type on corn yields at the BARC experimental OPE3 site. BARC Poster Day. 27th Annual Beltsville Poster Day on April 27, 2016.
Pilot study of using UAV to reveal spatial patterns of indicator bacteria concentrations in ponds and reservoirs used for irrigation - (Abstract Only)
Griffith, B.J., Stocker, M., Pachepsky, Y.A., Shelton, D.R. 2015. Pilot study of using UAV to reveal spatial patterns of indicator bacteria concentrations in ponds and reservoirs used for irrigation. BARC Poster Day. 26th Annual Beltsville Poster Day, National Agriculture Library on May 20, 2015.