Research Project: Design and Implementation of Monitoring and Modeling Methods to Evaluate Microbial Quality of Surface Water Sources Used for Irrigation

Location: Environmental Microbial & Food Safety Laboratory

Publications (Clicking on the reprint icon will take you to the publication reprint.)

Prediction of E. coli concentrations in agricultural pond waters: application and comparison of machine learning algorithms - (Peer Reviewed Journal)
Stocker, M., Pachepsky, Y.A., Hill, R. 2022. Prediction of E. coli concentrations in agricultural pond waters: application and comparison of machine learning algorithms. Frontiers in Artificial Intelligence. https://doi.org/10.3389/frai.2021.768650.

Persistent patterns of E. coli concentrations in two irrigation ponds from three years of monitoring - (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.

Persistent spatial patterns of Listeria monocytogenes and Salmonella enterica concentrations in surface waters: Empirical orthogonal function analysis of data from Maryland - (Peer Reviewed Journal)
Kim, S., Paul, M., Negahban-Azar, M., Micallef, S., Rosengerg Goldstein, R., Hashem, F., Parveen, S., Sapkota, A., Kniel, K., Sapkota, A., Pachepsky, Y.A., Sharma, M. 2022. Persistent spatial patterns of Listeria monocytogenes and Salmonella enterica concentrations in surface waters: Empirical orthogonal function analysis of data from Maryland. Applied Sciences. 12:7526. https://doi.org/10.3390/app12157526.

Elucidating spatial patterns of E. coli in two irrigation ponds with empirical orthogonal functions - (Peer Reviewed Journal)
Stocker, M., Pachepsky, Y.A., Hill, R.L., Kim, M.S. 2022. Elucidating spatial patterns of E. coli in two irrigation ponds with empirical orthogonal functions. Journal of Hydrology. 609:127770. https://doi.org/10.1016/j.jhydrol.2022.127770.

Parameters of infiltration models as affected by the measurement technique and land use - (Peer Reviewed Journal)
Karahan, G., Pachepsky, Y.A. 2022. Parameters of infiltration models as affected by the measurement technique and land use. Catena. https://doi.org/10.36783/18069657rbcs20210147.

On shapes of cumulative infiltration curves - (Peer Reviewed Journal)
Pachepsky, Y.A., Karahan, G. 2022. On shapes of cumulative infiltration curves. Geoderma. 412:115715. https://doi.org/10.1016/j.geoderma.2022.115715.

Interactions of E. coli with algae and aquatic vegetation in natural waters - (Peer Reviewed Journal)
Cho, K., Wolny, J., Kase, J., Unno, T., Pachepsky, Y.A. 2021. Interactions of E. coli with algae and aquatic vegetation in natural waters. Water Research. 209:117952. https://doi.org/10.1016/j.watres.2021.117952.

In-stream Escherichia Coli modeling using high-temporal-resolution data with deep learning and process-based models - (Peer Reviewed Journal)
Abbas, A., Baek, S., Silvera, N., Soulileuth, B., Pachepsky, Y.A., Ribolzi, O., Boithias, L., Cho, K. 2021. In-stream Escherichia Coli modeling using high-temporal-resolution data with deep learning and process-based models. Hydrology and Earth System Sciences. https://doi.org/10.5194/hess-25-6185-2021.

In-stream Escherichia coli modeling using high-temporal-resolution data with deep learning and process-based models - (Peer Reviewed Journal)
Abbas, A., Baek, S., Silvera, N., Soulileuth, B., Pachepsky, Y.A., Ribolzi, O., Boithias, L., Cho, K. 2021. In-stream Escherichia coli modeling using high-temporal-resolution data with deep learning and process-based models. Hydrology and Earth System Sciences. 25(12):6185-6202. https://doi.org/10.5194/hess-25-6185-2021.

Fate and transport in environmental quality - (Review Article)
Pachepsky, Y.A., Anderson, R.G., Harter, T., Jacques, D., Jamieson, R., Jeong, J., Kim, H., Ouyang, Y., Wan, Y., Zhang, W. 2021. Fate and transport in environmental quality. Journal of Environmental Quality. 50(6):1282-1289. https://doi.org/10.1002/jeq2.20300.

Temporal stability of phytoplankton functional groups within two agricultural irrigation ponds in Maryland, USA - (Peer Reviewed Journal)
Smith, J.E., Wolny, J.L., Stocker, M.D., Hill, R.L., Pachepsky, Y.A. 2021. Temporal stability of phytoplankton functional groups within two agricultural irrigation ponds in Maryland, USA. Frontiers in Water. https://doi.org/10.3389/frwa.2021.724025.

Escherichia coli reductions in water by zero valent iron sand filtration is based on water quality parameters - (Peer Reviewed Journal)
Kim, S., Eckart, K., Sabet, S., Chiu, P., Sapkota, A.R., Handy, E., East, C.L., Kniel, K.E., Sharma, M. 2021. Escherichia coli reductions in water by zero valent iron sand filtration is based on water quality parameters. Water. 13(19):2702.

Zero-valent Iron filtration reduces microbial contaminants in irrigation water and transfer to raw agricultural commodities - (Peer Reviewed Journal)
Anderson-Coughlin, B.L., Litt, P.K., Kim, S., Craighead, S., Kelly, A.J., Chiu, P., Sharma, M., Kniel, K.E. 2021. Zero-valent Iron filtration reduces microbial contaminants in irrigation water and transfer to raw agricultural commodities. Microorganisms. 9(2009):1-14. https://doi.org/10.3390/microorganisms9102009.

The site-specific selection of the infiltration model based on the global dataset and random forest algorithm - (Peer Reviewed Journal)
Kim, S., Karahan, G., Sharma, M., Pachepsky, Y.A. 2021. The site-specific selection of the infiltration model based on the global dataset and random forest algorithm. Vadose Zone Journal. https://doi.org/10.1002/vzj2.20125.

Water retention and field soil water states in a vertisol under long-term direct drill and conventional tillage - (Peer Reviewed Journal)
Vanderlinden, K., Pachepsky, Y.A., Pedrera-Padilla, A., Martinez, G., Espejo-Perez, A.J., Perea, F., Giraldez, J.V. 2021. Water retention and field soil water states in a vertisol under long-term direct drill and conventional tillage. European Journal of Soil Science. https://doi.org/10.1111/ejss.12967.

Estimating parameters of empirical infiltration models from the global data set using the machine learning algorithm - (Peer Reviewed Journal)
Kim, S., Pachepsky, Y.A., Karahan, G., Sharma, M. 2021. Estimating parameters of empirical infiltration models from the global data set using the machine learning algorithm. Journal of Hydrology. https://doi.org/10.31545/intagr/132922.

Analysis of spatiotemporal variability of corn yields using empirical orthogonal functions - (Peer Reviewed Journal)
Kim, S., Daughtry, C.S., Russ, A.L., Pedrera-Padilla, A., Pachepsky, Y.A. 2020. Analysis of spatiotemporal variability of corn yields using empirical orthogonal functions. Journal of Environmetrics. 12(12):3339. https://doi.org/10.3390/w12123339.

Editorial for the special issue on “Advances in soil scaling: Theories, techniques and applications” - (Peer Reviewed Journal)
Martin, M., San Jose Martinez, F., Giraldez, J.V., Pachepsky, Y.A., Vogel, H. 2020. Editorial for the special issue on “Advances in soil scaling: Theories, techniques and applications”. European Journal of Soil Science. https://doi.org/10.1111/ejss.13063.

Intraseasonal variation of phycocyanin concentrations and environmental covariates in two agricultural irrigation ponds in Maryland, USA - (Peer Reviewed Journal)
Smith, J.L., Stocker, M., Wolny, J.L., Hill, R.L., Pachepsky, Y.A. 2020. Intraseasonal variation of phycocyanin concentrations and environmental covariates in two agricultural irrigation ponds in Maryland, USA. Environmental Monitoring and Assessment. https://doi.org/10.1007/s10661-020-08664-w.

Modeling the kinetics of the rainfall-induced release of manure-borne fecal indicator bacteria as affected by manure consistency and manure weathering - (Peer Reviewed Journal)
Stocker, M.D., Hill, R., Pachepsky, Y.A. 2020. Modeling the kinetics of the rainfall-induced release of manure-borne fecal indicator bacteria as affected by manure consistency and manure weathering. Journal of Environmental Quality. https://doi.org/10.1002/jeq2.20164.

Modeling the photoinactivation and transport of somatic and F-specific coliphages at a great lakes beach - (Peer Reviewed Journal)
Safaie, A., Nguen, T., Weiskerger, C., Acrey, B., Zepp, R., Molina, M., Cyterski, M., Whelan, G., Pachepsky, Y.A., Phanikumar, M. 2020. Modeling the photoinactivation and transport of somatic and F-specific coliphages at a great lakes beach . Water Research. https://doi.org/10.1002/jeq2.20153.

Using convolutional neural network for predicting cyanobacteria concentrations in river water - (Peer Reviewed Journal)
Pyo, J., Park, L., Pachepsky, Y.A., Baek, S., Kim, K., Cho, K., Kim, S. 2020. Using convolutional neural network for predicting cyanobacteria concentrations in river water. Water Research. https://doi.org/10.1016/j.watres.2020.116349.

Data assimilation in surface water quality modeling: a review - (Review Article)
Cho, K., Pachepsky, Y.A., Ligaray, M., Kwon, Y. 2020. Data assimilation in surface water quality modeling: a review. Water Research. https://doi.org/10.1016/j.watres.2020.116307.

Accounting for the three-dimensional distribution of E. coli concentrations in pond water in simulations assessment of microbial quality of water withdrawn for irrigation - (Peer Reviewed Journal)
Jeon, D., Stocker, M.D., Sokolova, E., Lee, H., Baek, I., Kim, M.S., Pachepsky, Y.A. 2020. Accounting for the three-dimensional distribution of E. coli concentrations in pond water in simulations assessment of microbial quality of water withdrawn for irrigation. Irrigation Science. 12(6):1708. https://doi.org/10.3390/w12061708.

Analysis of spatial variability of soil water retention using the CDF matching - (Peer Reviewed Journal)
Gummatov, N., Pachepsky, Y.A. 2020. Analysis of spatial variability of soil water retention using the CDF matching. Soil Science. https://doi.org/10.1139/cjss-2019-0130.

A novel water quality module of the SWMM model for assessing Low Impact Development (LID) in Urban watersheds - (Peer Reviewed Journal)
Baek, S., Ligaray, M., Pyo, J., Park, J., Kang, J., Pachepsky, Y.A., Chun, J., Cho, K. 2020. A novel water quality module of the SWMM model for assessing Low Impact Development (LID) in Urban watersheds. Journal of Hydrology. 586:124886. https://doi.org/10.1016/j.jhydrol.2020.124886.

Identification and enumeration of cyanobacteria species using a deep neural network - (Peer Reviewed Journal)
Baek, S., Pyo, J., Pachepsky, Y.A., Park, Y., Ligaray, M., Ahn, C., Kim, Y., Chunjong Ahn, Cho, K. 2020. Identification and enumeration of cyanobacteria species using a deep neural network. Harmful Algae. 115:106395. https://doi.org/10.1016/j.ecolind.2020.106395.

Manure consistency and weathering affect the removal of fecal indicator bacteria from grass-covered soil - (Peer Reviewed Journal)
Stocker, M., Hill, R., Pachepsky, Y.A. 2020. Manure consistency and weathering affect the removal of fecal indicator bacteria from grass-covered soil. Science of the Total Environment. 231:1-11. https://doi.org/10.1007/s11270-020-04556-4.

Impact of marble powder amendment on hydraulic properties of a sandy soil - (Peer Reviewed Journal)
Farhadi-Machekposhti, M., Valdes-Abellan, J., Pla, C., Benavente, D., Pachepsky, Y.A. 2020. Impact of marble powder amendment on hydraulic properties of a sandy soil. International Agrophysics. 34(2):223-232. https://doi.org/10.31545/intagr/118245.

Assessment of a low impact development (LID) practice using the coupled SWMM and HYDRUS models - (Peer Reviewed Journal)
Baek, S., Pachepsky, Y.A., Chun, J., Yoon, K., Park, Y., Cho, K. 2020. Assessment of a low impact development (LID) practice using the coupled SWMM and HYDRUS models. Journal of Environmental Modeling and Software. 261:109920. https://doi.org/10.1016/j.jenvman.2019.109920.

Drone-based imaging to assess the microbial water quality in an irrigation pond: a pilot study - (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 the time scale on the uncertainty of geometric mean concentrations of fecal indicators in creek water under baseflow conditions - (Peer Reviewed Journal)
Jeon, D., Pachepsky, Y.A., Harriger, D., Picard, R., Coppock, C.R. 2019. Effect of the time scale on the uncertainty of geometric mean concentrations of fecal indicators in creek water under baseflow conditions. Environmental Research Letters. 10:1-5. https://doi.org/10.1038/s41598-020-58603-5.

The effect of temperature oscillations and sediment texture on fecal indicator bacteria survival in sediments - (Peer Reviewed Journal)
Smith, J.E., Stocker, M.D., Pachepsky, Y.A. 2019. The effect of temperature oscillations and sediment texture on fecal indicator bacteria survival in sediments. Water, Air, and Soil Pollution. 230(11):270. https://doi.org/10.1007/s11270-019-4278-7.

Seasonality of E. coli and enterococci concentrations in creek water, sediment, and periphyton - (Peer Reviewed Journal)
Stocker, M.D., Smith, J.E., Hernandez, C., Macarisin, D., Pachepsky, Y.A. 2019. Seasonality of E. coli and enterococci concentrations in creek water, sediment, and periphyton. Water, Air, and Soil Pollution. 230(9):223. https://doi.org/10.1007/s11270-019-4263-1.

Intra-seasonal variation of E. coli and environmental covariates in two irrigation ponds in Maryland, USA - (Peer Reviewed Journal)
Stocker, M.D., Pachepsky, Y.A., Hill, R.L., Sellner, K.G., Macarisin, D., Staver, K.W. 2019. Intra-seasonal variation of E. coli and environmental covariates in two irrigation ponds in Maryland, USA. Science of the Total Environment. https://doi.org/10.1016/j.scitotenv.2019.03.121.

On the information content of coarse data with respect to the particle size distribution of complex granular media: rationale approach and testing - (Peer Reviewed Journal)
Garcia-Gutierrez, C., Pachepsky, Y.A. 2019. On the information content of coarse data with respect to the particle size distribution of complex granular media: rationale approach and testing. Entropy Journal. 21(6):601. https://doi.org/10.3390/e21060601.

Analysis of E. coli and enterococci concentrations patterns in a Pennsylvania creek using empirical orthogonal functions - (Peer Reviewed Journal)
Jeon, D., Pachepsky, Y.A., Harriger, D., Picard, R., Coppock, C.R., Wells, E., Hong, E. 2019. Analysis of E. coli and enterococci concentrations patterns in a Pennsylvania creek using empirical orthogonal functions. Environmental Quality. https://doi.org/10.2134/jeq2019.05.0191.

Analysis of E. coli and enterococci concentrations patterns in a Pennsylvania creek using empirical orthogonal functions - (Peer Reviewed Journal)
Jeon, D., Pachepsky, Y.A., Harriger, D., Picard, R., Coppock, C.R., Wells, E., Hong, E. 2019. Analysis of E. coli and enterococci concentrations patterns in a Pennsylvania creek using empirical orthogonal functions. Environmental Quality. 48(6): 1703-1710. https://doi.org/10.2134/jeq2019.05.0191.

Deep learning model for membrane biofouling prediction using optical coherence tomography imaging - (Peer Reviewed Journal)
Park, S., Baek, S., Chun, J., Park, Y., Pachepsky, Y.A., Park, J., Cho, K. 2019. Deep learning model for membrane biofouling prediction using optical coherence tomography imaging. Journal Membrane Science. 587:117164. https://doi.org/10.1016/j.memsci.2019.06.004.

Temporal stability of E. coli and Enterococci Concentrations in a Pennsylvania creek - (Peer Reviewed Journal)
Jeon, D., Pachepsky, Y.A., Coppock, C.R., Harriger, D., Picard, R., Wells, E. 2019. Temporal stability of E. coli and Enterococci Concentrations in a Pennsylvania creek. Journal of Hydrology. https://doi.org/10.1007/s11356-019-07030-9.

Depth-dependent response of fecal indicator bacteria in sediments to changes in water column nutrient levels - (Peer Reviewed Journal)
Smith, J.E., Kiefer, L.A., Stocker, M., Blaustein, R., Ingram, S., Pachepsky, Y.A. 2019. Depth-dependent response of fecal indicator bacteria in sediments to changes in water column nutrient levels. Environmental Quality. 48:1074–1081.

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.

Intra-seasonal variation of E. coli and environmental covariates in two irrigation ponds in Maryland, USA - (Peer Reviewed Journal)
Stocker, M., Pachepsky, Y.A., Hill, R., Sellner, K., Staver, K. 2019. Intra-seasonal variation of E. coli and environmental covariates in two irrigation ponds in Maryland, USA. Science of the Total Environment. 670:732-740.

How critical is the frequency of water content measurements for obtaining soil hydraulic properties with data assimilation? - (Peer Reviewed Journal)
Valdes-Abellan, J., Pachepsky, Y.A., Martinez, G., Pla, C. 2019. How critical is the frequency of water content measurements for obtaining soil hydraulic properties with data assimilation? Vadose Zone Journal. https://doi.org/10.2136/vzj2018.07.0142.

New methodology to develop high-resolution rainfall data using weather radar for watershed-scale water quality model - (Peer Reviewed Journal)
Jeon, D., Pachepsky, Y.A., Kim, B., Kim, J. 2019. New methodology to develop high-resolution rainfall data using weather radar for watershed-scale water quality model. Desalination and Water Treatment. 138:248-256.

Evaluating the influence of climate change on the fate and transport of fecal coliform bacteria using the modified SWAT model - (Peer Reviewed Journal)
Jeon, D., Ligaray, M., Kim, M., Kim, G., Lee, G., Pachepsky, Y.A., Cha, D., Cho, K. 2018. Evaluating the influence of climate change on the fate and transport of fecal coliform bacteria using the modified SWAT model. Science of the Total Environment. 658:753-762.

Obtaining soil hydraulic parameters from data assimilation and calibration under different climatic/soil conditions - (Peer Reviewed Journal)
Valdes-Abellan, J., Pachepsky, Y.A., Martinez, G. 2018. Obtaining soil hydraulic parameters from data assimilation and calibration under different climatic/soil conditions. Catena. 163:311-320.

Microbial water quality: monitoring and modeling - (Peer Reviewed Journal)
Pachepsky, Y.A., Allende, A., Boithias, L., Cho, K., Hofstra, N., Jamieson, R., Molina, M. 2018. Microbial water quality: monitoring and modeling. Environmental Quality. 47(5):931-938.

Temporal stability of E. coli concentrations in waters of two irrigation ponds in Maryland - (Peer Reviewed Journal)
Pachepsky, Y.A., Kierzewski, R.A., Stocker, M., Mulbry Iii, W.W., Sellner, K. 2018. Temporal stability of E. coli concentrations in waters of two irrigation ponds in Maryland. Applied and Environmental Microbiology. 84:e01876-17. https://doi.org/10.1007/s11356-019-07030-9.

Challenges in matching permeability observed in macroporous soil with lattice Boltzmann and image analysis methods using segmented pore structures - (Peer Reviewed Journal)
Rahmatil, M., Weihermuller, L., Vanderborght, J., Pachepsky, Y.A., Mao, L., Moosavi, N., Montzka, K., Looy, K. 2018. Challenges in matching permeability observed in macroporous soil with lattice Boltzmann and image analysis methods using segmented pore structures. Earth System Science Data. https://doi.org/10.5194/essd-2018-11.

E. coli export from the manured field depends on the time from rainfall start to runoff initiation - (Peer Reviewed Journal)
Stocker, M., Pachepsky, Y.A., Hill, R. 2018. E. coli export from the manured field depends on the time from rainfall start to runoff initiation. Journal of Environmental Quality. 47(5):1293-1297.

Saturated hydraulic conductivity and textural heterogeneity of soils - (Peer Reviewed Journal)
Garcia-Gutierrez, C., Pachepsky, Y.A., Martin, M.A. 2018. Saturated hydraulic conductivity and textural heterogeneity of soils. Hydrology and Earth System Sciences. 22(7):3923-3932.

Saturated hydraulic conductivity and textural heterogeneity of soils - (Peer Reviewed Journal)
Garcia Gutierrez, C., Pachepsky, Y.A., Martin, M.A. 2018. Saturated hydraulic conductivity and textural heterogeneity of soils. Hydrology and Earth System Sciences. 22(7):3923-3932.

Matlab algorithm to implement soil water data assimilation with the ensemble kalman filter using Hydrus - (Peer Reviewed Journal)
Valdes-Abellan, J., Pachepsky, Y.A., Martinez, G. 2018. Matlab algorithm to implement soil water data assimilation with the ensemble kalman filter using Hydrus. MethodsX. 5:184-203.

Spatial patterns of E. coli concentrations in sediment before and after artificial high-flow events in a first-order creek - (Peer Reviewed Journal)
Stocker, M., Penrose, M., Pachepsky, Y.A. 2018. Spatial patterns of E. coli concentrations in sediment before and after artificial high-flow events in a first-order creek. Journal of Environmental Quality. 47(5):958-966.

Functional evaluation of three manure-borne indicator bacteria release models with multiyear field experiment data - (Peer Reviewed Journal)
Stocker, M.D., Yakirevich, A., Guber, A., Martinez, G., Blaustein, R., Whelan, G., Shelton, D.R., Pachepsky, Y.A., Goodrich, D.C. 2018. Functional evaluation of three manure-borne indicator bacteria release models with multiyear field experiment data. Water, Air, and Soil Pollution. 229:181. https://doi.org/10.1007/s11270-018-3807-0.

Spatial patterns of E. coli concentrations in sediment before and after artificial high-flow events in a first-order creek - (Peer Reviewed Journal)
Stocker, M., Penrose, M., Pachepsky, Y.A. 2018. Spatial patterns of E. coli concentrations in sediment before and after artificial high-flow events in a first-order creek. Journal of Environmental Quality. https://doi.org/10.2134/jeq2017.11.0451.

Development of a nowcasting system using machine learning approaches to predict the level of fecal contamination at recreational beaches in Korea - (Peer Reviewed Journal)
Park, Y., Kim, M., Pachepsky, Y.A., Choi, S., Cho, J., Cho, K. 2018. Development of a nowcasting system using machine learning approaches to predict the level of fecal contamination at recreational beaches in Korea. Journal of Environmental Quality. 47(5):1094-1102.

On soil textural classifications and soil texture-based estimations - (Peer Reviewed Journal)
Martin, M.A., Pachepsky, Y.A., Garcia-Gutierrez, C., Reyes, M. 2018. On soil textural classifications and soil texture-based estimations. Geophysical Research Letters. Solid Earth 9(1):159-165.

Obtaining soil hydraulic parameters from data assimilation and calibration under different climatic/soil conditions - (Peer Reviewed Journal)
Valdes-Abellan, J., Pachepsky, Y.A., Marinez, G. 2018. Obtaining soil hydraulic parameters from data assimilation and calibration under different climatic/soil conditions. Catena. 163:311-320. https://doi.org/10.1016/j.catena.2017.12.022.

Simulating seasonal variability of phytoplankton in stream water using the modified SWAT model - (Peer Reviewed Journal)
Pyo, J., Pachepsky, Y.A., Kim, M., Baek, S., Lee, H., Cha, Y., Park, Y., Cho, K. 2017. Simulating seasonal variability of phytoplankton in stream water using the modified SWAT model. Environmental Modelling & Software. 122:104073. https://doi.org/10.1016/j.envsoft.2017.11.005.

Temporal stability of E. coli concentrations in waters of two irrigation ponds in Maryland - (Peer Reviewed Journal)
Pachepsky, Y.A., Kierzewski, R.A., Stocker, M., Mulbry, W., Sellner, K., Lee, H., Kim, M.S. 2017. Temporal stability of E. coli concentrations in waters of two irrigation ponds in Maryland. Applied and Environmental Microbiology. 84:e01876-17. https://doi.org/10.1128/AEM.01876-17.

Pedotransfer functions in Earth system science: challenges and perspectives - (Review Article)
Van Looy, K., Bouma, J., Herbst, M., Koestel, J., Minasny, B., Montzka, C., Nemes, A., Pachepsky, Y.A., Padarian, J., Schaap, M., Toth, B., Verhoef, A., Vanderborght, J., Van Der Ploeg, M., Weihermuller, L., Zacharias, S., Zhang, Y., Vereechen, H. 2017. Pedotransfer functions in Earth system science: challenges and perspectives. Reviews of Geophysics. 55(4):1199-1256.

Simpler models in environmental studies and predictions - (Peer Reviewed Journal)
Hong, E., Pachepsky, Y.A., Whelan, G. 2017. Simpler models in environmental studies and predictions. Critical Reviews in Environmental Science Technology. 47(18):1669-1712.

FDevelopment and evaluation of the bacterial fate and transport module for the Agricultural Policy/Environmental eXtender (APEX) model - (Peer Reviewed Journal)
Hong, E., Park, Y., Muirhead, R., Jaehak, J., Pachepsky, Y.A. 2018. FDevelopment and evaluation of the bacterial fate and transport module for the Agricultural Policy/Environmental eXtender (APEX) model. Science of the Total Environment. 615:47–58.

Developing the vegetation drought response index for South Korea (VegDRI-SKorea) to assess the vegetation condition during drought events - (Peer Reviewed Journal)
Nam, W., Tadesse, T., Wardlow, B., Hayes, M., Svoboda, M., Hong, E., Pachepsky, Y.A., Jang, M. 2018. Developing the vegetation drought response index for South Korea (VegDRI-SKorea) to assess the vegetation condition during drought events. International Journal of Applied Earth Observation and Geoinformation. 39(5):1548-1574.

Development and evaluation of the bacterial fate and transport module for the agricultural policy/environmental extender (APEX) model - (Abstract Only)

Obtaining soil hydraulic parameters from data assimilation under different climatic/soil conditions - (Abstract Only)

Is the textural classification built on sand? - (Abstract Only)

Effect of phytoplankton on Escherichia coli survival in laboratory microcosms - (Abstract Only)

Soils and public health: a microbially-mediated nexus - (Abstract Only)

Runoff delay exerts a strong control on the field-scale removal of manure-borne fecal bacteria with runoff - (Abstract Only)

Fecal indicator sources in small creeks - (Abstract Only)

Capturing microbial sources distributed in a mixed-use watershed within an integrated environmental modeling workflow - (Peer Reviewed Journal)
Whelen, G., Kim, K., Parmar, R., Laniak, G., Wolfe, K., Galvin, M., Molina, M., Pachepsky, Y.A., Duda, P., Zepp, R., Prieto, L., Kinzelman, J., Kleinheinz, G., Borchardt, M.A. 2018. Capturing microbial sources distributed in a mixed-use watershed within an integrated environmental modeling workflow. Journal of Environmental Modeling and Software. 99:126-146.

Transport of a conservative and "smart" tracers' in a first-order creek: role of transient storage type - (Peer Reviewed Journal)
Yakirevich, A., Shelton, D.R., Hill, R., Kiefer, L., Stoker, M., Blaustein, R., Kuznetsov, M., McCarty, G.W., Pachepsky, Y.A. 2017. Transport of a conservative and "smart" tracers' in a first-order creek: role of transient storage type. Water. 9(7):485.

Optimizing the bio-optical algorithm for estimating chlorophyll-a and phycocyanin concentrations in inland waters in Korea - (Peer Reviewed Journal)
Pyo, J., Pachepsky, Y.A., Baek, S., Kwon, Y., Kim, M., Lee, H., Park, S., Cha, Y. 2017. Optimizing the bio-optical algorithm for estimating chlorophyll-a and phycocyanin concentrations in inland waters in Korea. International Journal of Remote Sensing. 9(6):542.

Upscaling issues in ecohydrological observations - (Book / Chapter)
Vereecken, H., Pachepsky, Y.A., Bogena, H., Javaux, M., Montzka, C. 2019. Upscaling issues in ecohydrological observations. In: Li X., Vereecken H., editors. Observation and Measurement of Ecohydrological Processes. Ecohydrology. Berlin, Heidelberg: Springer. p. 435-454.

Hydrological modeling of fecal indicator bacteria in a tropical mountain catchment - (Peer Reviewed Journal)
Kim, M., Boithias, L., Cho, K., Silvera, N., Thammahacksa, C., Latsachack, K., Rochelle-Newall, E., Pachepsky, Y.A., Sengtaheuanghoung, O., Pierret, A., Ribolzi, O. 2017. Hydrological modeling of fecal indicator bacteria in a tropical mountain catchment. Water Research. 119:102-113.

Runoff delay exerts a strong control on the field-scale removal of manure-borne fecal bacteria with runoff - (Abstract Only)
Matthew, S., Pachepsky, Y.A., Hill, R., Daughtry, C.S., Shelton, D.R. 2017. Runoff delay exerts a strong control on the field-scale removal of manure-borne fecal bacteria with runoff. BARC Poster Day. 28th Annual BARC Poster Day, Beltsville, MD on April 26, 2017.

Temporal stability of Escherichia coli concentration patterns in two irrigation ponds in Maryland - (Abstract Only)
Kierzewski, R.A., Pachepsky, Y.A., Stocker, M., Mulbry Iii, W.W., Shelton, D.R. 2017. Temporal stability of Escherichia coli concentration patterns in two irrigation ponds in Maryland. BARC Poster Day. 28th Annual BARC Poster Day, Beltsville, MD on April 26, 2017.

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 high flow events on spatiotemporal variation of E. coli concentrations in creek sediments - (Abstract Only)
Stocker, M., Penrose, M., Shelton, D.R., Pachepsky, Y.A. 2017. Effect of high flow events on spatiotemporal variation of E. coli concentrations in creek sediments. Water Quality Meeting. Water Microbiology Conference 2017. Chapel Hill. CD.ROM. on May 15-19, 2017.

Monitoring and modeling of microbial and biological water quality - (Abstract Only)
Pachepsky, Y.A. 2017. Monitoring and modeling of microbial and biological water quality. Water Quality Meeting. Ulsan, Korea on May 10-15, 2017.

Soil and public health: invisible bridges - (Abstract Only)
Pachepsky, Y.A. 2017. Soil and public health: invisible bridges. European Geosciences Union General Assembly Proceedings. Vienna, Austria on April 23-28, 2017.

Temporal stability of E. coli concentration patterns in two irrigation ponds in Maryland - (Abstract Only)
Pachepsky, Y.A., Kierkzewsky, R., Stocker, M., Mulbry Iii, W.W., Millner, P.D., Shelton, D.R. 2017. Temporal stability of E. coli concentration patterns in two irrigation ponds in Maryland. European Geophysical Society Meeting. Vienna, Austria on April 23-27, 2017.

Development and evaluation of the microbial fate and transport module for the Agricultural Policy/Environmental eXtender (APEX) model - (Abstract Only)
Hong, E., Park, Y., Muirhead, R., Pachepsky, Y.A. 2017. Development and evaluation of the microbial fate and transport module for the Agricultural Policy/Environmental eXtender (APEX) model. European Geophysical Society Meeting. Geophysical Research Abstracts. EUG. 19:1365.

Enrichment of stream water with fecal indicator organisms from bottom sediments during baseflow periods - (Peer Reviewed Journal)
Pachepsky, Y.A., Stocker, M., Olmeda Saldana, M., Shelton, D.R. 2017. Enrichment of stream water with fecal indicator organisms from bottom sediments during baseflow periods. Environmental Monitoring and Assessment. 189(2):51-61.

Scale effects on runoff and soil erosion in rangelands: observations and estimations with predictors of different availability - (Peer Reviewed Journal)
Martinez, G., Weltz, M.A., Pierson, F.B., Spaeth, K., Pachepsky, Y.A. 2017. Scale effects on runoff and soil erosion in rangelands: observations and estimations with predictors of different availability. Catena. 151:161-173.

Modeling the interannual variability of microbial quality metrics of irrigation water in a Pennsylvanian stream - (Peer Reviewed Journal)
Hong, E., Shelton, D.R., Pachepsky, Y.A., Nam, W., Coppock, C.R., Muirhead, R. 2017. Modeling the interannual variability of microbial quality metrics of irrigation water in a Pennsylvanian stream. Journal of Environmental Management. 187:253-264.

E. coli release from streambed to water column during base flow periods: a modeling study - (Peer Reviewed Journal)
Park, Y., Pachepsky, Y.A., Hong, E., Shelton, D.R., Coppock, C.R. 2016. E. coli release from streambed to water column during base flow periods: a modeling study. Journal of Environmental Quality. 46(1):219-226.

Water retention and preferential states of soil moisture in a cultivated vertisol - (Peer Reviewed Journal)
Vanderlinden, K., Pachepsky, Y.A., Pedrera-Parrilla, A., Martinez, G., Espejo-Perez, A., Perea, F., Gyraldez, J.V. 2017. Water retention and preferential states of soil moisture in a cultivated vertisol. Soil Science Society of America Journal. 81(1):1-9.

Accuracy of sample dimension-dependent pedotransfer functions in estimation of soil saturated hydraulic conductivity - (Peer Reviewed Journal)
Ghanbaran, B., Taslimitehrani, V., Pachepsky, Y.A. 2017. Accuracy of sample dimension-dependent pedotransfer functions in estimation of soil saturated hydraulic conductivity. Catena. 149:374-380.

On the role of patterns in understanding the functioning of soil-vegetation-atmosphere systems - (Peer Reviewed Journal)
Vreeecken, H., Pachepsky, Y.A., Simmer, C., Rihani, J., Kunoth, A., Korres, W., Graph, A., Hendricks Frannsen, H., Thiele-Eiche, I., Shao, Y. 2016. On the role of patterns in understanding the functioning of soil-vegetation-atmosphere systems. Journal of Hydrology. doi:10.1016/j.jhydrol.2016.08.053.

Concurrent temporal stability of the apparent electrical conductivity and soil water content - (Peer Reviewed Journal)

New submodel for watershed-scale simulations of fecal bacteria fate and transport at agricultural and pasture lands - (Proceedings)
Park, Y., Pachepsky, Y.A., Hong, E., Shelton, D.R., Whelan, G. 2016. New submodel for watershed-scale simulations of fecal bacteria fate and transport at agricultural and pasture lands. In:ASABE Annual International Meeting, July 17-20, 2016, Oralndo, FL. p.162462856.

Bacteria transport simulation using APEX model in the Toenepi watershed, New Zealand - (Proceedings)
Hong, E., Muirhead, R., Pachepsky, Y.A., Park, Y., Shelton, D.R. 2016. Bacteria transport simulation using APEX model in the Toenepi watershed, New Zealand. ASABE Annual International Meeting. Orlando, FL on July 17-20, 2016.

E. coli in PA streams as affected by climate forcing - (Proceedings)
Hong, E., Pachepsky, Y.A., Park, Y., Shelton, D.R. 2016. E. coli in PA streams as affected by climate forcing. In:ASABE Annual International Meeting, Orlando, FL on July 17-20, 2016. p.162462928.

Assessing the radar rainfall estimates in watershed-scale water quality model - (Abstract Only)
Jeon, D., Kim, J., Pachepsky, Y.A. 2016. Assessing the radar rainfall estimates in watershed-scale water quality model. BARC Poster Day. 2016 BARC Poster Day on April 27, 2016.

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.

Bacteria transport simulation using apex model in the toenepi watershed, New Zealand - (Abstract Only)
Hong, E., Pachepsky, Y.A., Park, Y., Muirhead, R., Shelton, D.R. 2016. Bacteria transport simulation using apex model in the toenepi watershed, New Zealand. BARC Poster Day. 27th Annual Beltsville Poster Day, National Agriculture Library, April 27, 2016..

Escherichia coli survival in the presence of Chlorella vulgaris in a nutrient supplemented freshwater medium - (Abstract Only)
Kierzewski, R.A., Kiefer, L., Kangas, P., Mulbry Iii, W.W., Pachepsky, Y.A., Shelton, D.R. 2016. Escherichia coli survival in the presence of Chlorella vulgaris in a nutrient supplemented freshwater medium. BARC Poster Day. 27th Annual Beltsville Poster Day on April 27, 2016.

Prediction of E. coli release from streambed to water column during base flow periods using SWAT model - (Abstract Only)
Park, Y., Pachepsky, Y.A., Hong, E., Coppock, C.R., Shelton, D.R. 2016. Prediction of E. coli release from streambed to water column during base flow periods using SWAT model. BARC Poster Day. 27th Annual Beltsville Poster Day, National Agriculture Library, April 27, 2016..

Remval of fecal indicator bacteria from manured soils under simulated rainfall events spaced in time - (Abstract Only)
Stocker, M.D., Pachepsky, Y.A., Hill, R., Shelton, D.R. 2016. Remval of fecal indicator bacteria from manured soils under simulated rainfall events spaced in time. BARC Poster Day. 27th Annual Beltsville Poster Day, National Agriculture Library, April 27, 2016..

Derivation of spatial patterns of soil hydraulic properties based on pedotransfer functions - (Abstract Only)

Chlorophyll-a concentration estimation with three bio-optical algorithms: correction for the low concentration range for the Yiam Reservoir, Korea - (Peer Reviewed Journal)
Pyo, J., Haseong, Pachepsky, Y.A., Lee, H., Nam, G., Kim, M.S., Im, J., Cho, K.H. 2016. Chlorophyll-a concentration estimation with three bio-optical algorithms: correction for the low concentration range for the Yiam Reservoir, Korea. Remote Sensing Letters. 7(5):407–416.