Cibin Raj, Ph.D.

Cibin Raj, Ph.D.

  • Associate Professor of Agricultural and Biological Engineering
  • Biological Engineering Coordinator
247 Agricultural Engineering Building
Shortlidge Road

University Park, PA 16802

Areas of Expertise

  • Storm water management
  • Watershed modeling
  • Application of optimization tools in watershed analysis
  • Ecohydrological impacts of climate and land use change

Education

  • B.S. Agricultural Engineering, Kerala Agricultural University, India, 2006
  • M.S. Civil Engineering, Indian Institute of Technology Madras, India, 2008
  • Ph.D. Agricultural and Biological Engineering, Purdue University, 2013

Teaching

  • BE 307: Principles of Soil and Water Engineering (3)
  • BE 487: Watershed Modeling for Water Quality Design (3)
  • ABE/CE 587: Computational Ecohydrology (3)

For information about courses please visit the LionPATH Course Catalog.

Publications

Prioritizing conservation practice locations for effective water quality improvement using the Agricultural Conservation Planning Framework (ACPF) and the Soil and Water Assessment Tool (SWAT)
Journal of Environmental Management, Rohith, A. N., Karki, R., Veith, T. L., Preisendanz, H. E., Duncan, J. M., Kleinman, Peter J A, Cibin, R., 2024

A distributed model parameter optimization toolbox performing multisite calibration in the lump and distributed mode for the SWAT model
Environmental Modelling and Software, Feng, Qingyu, Chen, Liding, Yang, Lei, Yen, Haw, Wang, Ruoyu, Wu, Feng, Feng, Yang, Raj, Cibin, Engel, Bernard A., Omani, Nina, Oikonomou, Panagiotis D., Zia, Asim, 2023

Global Sustainable Water Management: A Systematic Qualitative Review
Water Resources Management, Hasan, Nuru, Pushpalatha, Raji, Manivasagam, V. S., Arlikatti, Sudha, Cibin, Raj, 2023

How does the choice of DEMs affect catchment hydrological modeling?
Science of the Total Environment, Moges, Desalew Meseret, Virro, Holger, Kmoch, Alexander, Cibin, Raj, Rohith, A. N., Martínez-Salvador, Alberto, Conesa-García, Carmelo, Uuemaa, Evelyn, 2023

A deep learning-based novel approach to generate continuous daily stream nitrate concentration for nitrate data-sparse watersheds
Science of the Total Environment, Saha, Gourab Kumer, Rahmani, Farshid, Shen, Chaopeng, Li, Li, Shen, C, Li, Li, Cibin, Raj, 2023

Water quality benefits of weather-based manure application timing and manure placement strategies
Journal of Environmental Management, Saha, Arghajeet, Cibin, Raj, Veith, Tamie, White, Charles, Drohan, Patrick, 2023

USING NONSTATIONARY DEPTH-FREQUENCY CURVES TO CHARACTERIZE LOCAL PRECIPITATION TRENDS
Applied Engineering in Agriculture, Marali, Kalra, Cibin, Raj, 2023

Optimization and reflexivity in interdisciplinary agri-environmental scholarship
Frontiers in Sustainable Food Systems, Chiles, Robert Magneson, Drohan, Patrick, Cibin, Raj, O’Sullivan, Lilian, O'Sullivan, Lilian, Doody, Donnacha, Schulte, Rogier, Grady, Caitlin, Jiang, Fei, Preisendanz, Heather E., Gall, H, Dingkuhn, Elsa Ligaya, Veith, Tamie, Anderson, Aine, 2023

Identifying Sweet Spots for Green Stormwater Infrastructure Implementation: A Case Study in Lancaster, Pennsylvania
Journal of Sustainable Water in the Built Environment, Bajehbaj, Rouhangiz Yavari, Yavari Bajehbaj, Rouhangiz, Wu, Hong, Grady, Caitlin, Brent, Daniel, Clark, Shirley Elizabeth, Cibin, Raj, Duncan, Jonathan, Kumar Chaudhary, Anil, McPhillips, Lauren E., 2023

A Framework to Model the Hydrology of Solar Farms Using EPA SWMM
Environmental Modeling and Assessment, Nair, Adira Ajith, Rohith, A. N., Cibin, Raj, McPhillips, Lauren E., 2023

Improving probabilistic monthly water quantity and quality predictions using a simplified residual-based modeling approach
Environmental Modelling and Software, Guo, Tian, Liu, Yaoze, Shao, Gang, Engel, Bernard A., Sharma, Ashish, Marshall, Lucy A., Flanagan, Dennis C., Cibin, Raj, Wallace, Carlington W., Zhao, Kaiguang, Ren, Dongyang, Vera Mercado, Johann, Aboelnour, Mohamed A., 2022

Minimizing environmental impacts of solar farms: a review of current science on landscape hydrology and guidance on stormwater management
Environmental Research: Infrastructure and Sustainability, Yavari, Rouhangiz, Zaliwciw, Demetrius, Cibin Raj, Fnu, McPhillips, Lauren, 2022

Envisioning the manureshed: Toward comprehensive integration of modern crop and animal production
Journal of Environmental Quality, Kleinman, Peter J.A., Spiegal, Sheri A., Silviera, Maria L., Baker, John M., Dell, Curtis J., Bittman, Shabtai, Cibin, Raj, Vadas, Peter A., Buser, Michael D., Tsegaye, Teferi, 2022

Evaluating water quality benefits of manureshed management in the Susquehanna River Basin
Journal of Environmental Quality, Saha, Arghajeet, Saha, Gourab, Cibin, Raj, Drohan, P, Spiegal, Sheri, Kleinman, Peter, White, C, Veith, Tamie, Klienman, Peter, White, Charles, Spiegel, Sheri, Drohan, Patrick, Tsegaye, Teferi, 2022

Reliability of Hydrology and Water Quality Simulations Using Global Scale Datasets
Journal of the American Water Resources Association, Jayaprathiga, Mahalingam, Cibin, Raj, Sudheer, K. P., 2022

Reconceptualizing HRU Threshold Definition in the Soil and Water Assessment Tool
Journal of the American Water Resources Association, Femeena, Pandara Valappil, Karki, Ritesh, Cibin, Raj, Sudheer, K. P., 2022

Toward a Robust Land Suitability Framework for Manure Management: Modeling Impacts and Evaluating Biophysical Characteristics
Journal of the American Water Resources Association, Saha, Gourab K., Cibin, Raj, Elliott, Herschel Adams, Preisendanz, Heather E., 2022

Evaluating the potential impacts of solar farms on hydrological responses, Nair, Adira Ajith, Rohith, A. N., Raj, Cibin, McPhillips, Lauren E., 2022

Mitigating lake eutrophication through stakeholder-driven hydrologic modeling of agricultural conservation practices: A case study of Lake Macatawa, Michigan
Journal of Great Lakes Research, Iavorivska, Lidiia, Veith, Tamie L., Cibin, Raj, Preisendanz, Heather, Steinman, Alan D., 2021

Integrating daily CO2 concentrations in SWAT-VSA to examine climate change impacts on hydrology in a karst watershed
Transactions of the ASABE, Gunn, Kpoti M., Buda, Anthony R., Preisendanz, Heather E., Cibin, Raj, Kennedy, Casey D., Veith, Tamie L., 2021

Reallocating crop rotation patterns improves water quality and maintains crop yield
Agricultural Systems, Jiang, Fei, Drohan, Patrick, Cibin, Raj, Preisendanz, H, Gall, H, White, Charles M., Veith, Tamie, 2021

Development of a land suitability framework for sustainable manure utilization
Transactions of the ASABE, Saha, Gourab, Cibin, R., Raj, Cibin, Elliott, Herschel, Preisendanz, H, Gall, H, Preisendanz, Heather, Elliott, H, 2021

Manuresheds: Tools to recycle nutrients for the sustainable intensification of agriculture
Agricultural Systems, Spiegal, Sheri, Kleinman, Peter, Endale, Dinku, Bryan, Ray, Goslee, Sarah, Meinen, Robert, Flynn, Colton, Baker, John, Browning, Dawn, McCarty, Greg, Bittman, Shabtai, Carter, Jennifer, Cavigelli, Michel, Duncan, Emily, Gowda, Prasanna, Li, Xia, Ponce-Campos, Uillermo, Cibin, Raj, Silveira, Maria, Smith, Doulas, Arthur, Dan, Yang, Qichun, 2020

Manuresheds: Advancing nutrient recycling in US agriculture
Agricultural Systems, Spiegal, Sheri, Kleinman, Peter, Endale, Dinku M., Bryant, Raymond, Dell, Curtis, Goslee, Sarah, Meinen, Robert, Flynn, K. Colton, Baker, John M., Baker, K., Browning, Dawn M., McCarty, G., Bittman, Shabtai, Carter, Jennifer, Cavigelli, Michel, Duncan, Emily, Gowda, Prasanna, Li, Xia, Ponce-Campos, Guillermo E., Raj, Cibin, Cibin, Raj, Silveira, Maria L., Smith, Douglas, Arthur, Daniel, Yang, Qichun, 2020

Riparian buffer effectiveness as a function of buffer design and input loads
Journal of Environmental Quality, Jiang, Fei, Gall, H, Preisendanz, Heather E., Veith, Tamie, Raj, Cibin, Cibin, Raj, Drohan, Patrick, 2020

Environmental Impacts of Bioenergy Crop Production and Benefits of Multifunctional Bioenergy Systems, Ale, Srinivasalu, Femeena, P, Mehan, S, Cibin, Raj, 2019

Corn stover harvest N and energy budgets in central Iowa
Science of the Total Environment, Malone, R. W., Herbstritt, S., Ma, L., Richard, T. L., Cibin, R., Gassman, P. W., Zhang, H. H., Karlen, D. L., Hatfield, J. L., Obrycki, J. F., Helmers, M. J., Jaynes, D. B., Kaspar, T. C., Parkin, T. B., Fang, Q. X., 2019

Hydrologic responses to projected climate change in ecologically diverse watersheds of the Gulf Coast, United States
International Journal of Climatology, Neupane, Ram P., Ficklin, Darren L., Knouft, Jason H., Ehsani, Nima, Cibin, Raj, 2019

Environmental impacts of bioenergy crop production and benefits of multifunctional bioenergy systems, Ale, Srinivasulu, Femeena, Pandara V., Mehan, Sushant, Cibin, Raj, 2019

Precision conservation for biofuel production, Chaubey, Indrajeet, Cibin, Raj, Feng, Qingyu, 2018

The effects of disproportional load contributions on quantifying vegetated filter strip sediment trapping efficiencies
Stochastic Environmental Research and Risk Assessment, Gall, Heather E., Schultz, Daniel, Veith, Tamie L., Goslee, Sarah C., Mejia, Alfonso, Harman, Ciaran J., Raj, Cibin, Patterson, Paul H., 2018

Parameter estimation of SWAT and quantification of consequent confidence bands of model simulations
Environmental Geology and Water Sciences, Krishnan, Nithya, Raj, Cibin, Chaubey, I., Sudheer, K. P., 2018

Perennial biomass production from marginal land in the Upper Mississippi River Basin
Land Degradation and Development, Feng, Qingyu, Chaubey, Indrajeet, Cibin, Raj, Engel, Bernard, Sudheer, K. P., Volenec, Jeffrey, Omani, Nina, 2018

Spatial optimization of cropping pattern for sustainable food and biofuel production with minimal downstream pollution
Journal of Environmental Management, Femeena, P. V., Sudheer, K. P., Cibin, R., Chaubey, I., 2018

Evaluation of bioenergy crop growth and the impacts of bioenergy crops on streamflow, tile drain flow and nutrient losses in an extensively tile-drained watershed using SWAT
Science of the Total Environment, Guo, Tian, Cibin, Raj, Chaubey, Indrajeet, Gitau, Margaret, Arnold, Jeffrey G., Srinivasan, Raghavan, Kiniry, James R., Engel, Bernard A., 2018

An improved representation of vegetative filter strips in swat
Transactions of the ASABE, Cibin, R., Chaubey, I., Helmers, M., Sudheer, K. P., White, M. J., Arnold, J. G., 2018

Improved filter strip representation in SWAT model to simulate energy crop filter strips
Transactions of the ASABE, Cibin, Raj, Chaubey, Indrajeet, Sudheer, K P, White, MJ, Arnold, J G, Helmers, Matthew, 2018

Geospatial landscape analysis for livestock manure management in Western Pennsylvania, Saha, Gourab, Elkin, None, Raj, Cibin, Elliott, Herschel, Shortle, J, Gall, Heather, Abler, D, Shortle, Jim, Alber, David, Abler, D, 2018

Policy Implications from Multi-scale Watershed Models of Biofuel Crop Adoption across the Corn Belt
Journal of the American Water Resources Association, Kling, Catherine L., Chaubey, Indrajeet, Cibin, Raj, Gassman, Philip W., Panagopoulos, Yiannis, 2017

Assessment of Bioenergy Cropping Scenarios for the Boone River Watershed in North Central Iowa, United States
Journal of the American Water Resources Association, Gassman, Philip W., Valcu-Lisman, Adriana M., Kling, Catherine L., Mickelson, Steven K., Panagopoulos, Yiannis, Cibin, Raj, Chaubey, Indrajeet, Wolter, Calvin F., Schilling, Keith E., 2017

Water Quality Assessment of Large-scale Bioenergy Cropping Scenarios for the Upper Mississippi and Ohio-Tennessee River Basins
Journal of the American Water Resources Association, Panagopoulos, Yiannis, Gassman, Philip W., Kling, Catherine L., Cibin, Raj, Chaubey, Indrajeet, 2017

Influence of Bioenergy Crop Production and Climate Change on Ecosystem Services
Journal of the American Water Resources Association, Cibin, Raj, Chaubey, Indrajeet, Muenich, Rebecca L., Cherkauer, Keith A., Gassman, Philip W., Kling, Catherine L., Panagopoulos, Yiannis, 2017

Integrated Economic and Environmental Assessment of Cellulosic Biofuel Production in an Agricultural Watershed
Bioenergy Research, Song, Jingyu, Gramig, Benjamin M., Cibin, Raj, Chaubey, Indrajeet, 2017

Comparative analysis of HRU and grid-based SWAT models
Water (Switzerland), Pignotti, Garett, Rathjens, Hendrik, Cibin, Raj, Chaubey, Indrajeet, Crawford, Melba, 2017

Biophysical and hydrological effects of future climate change including trends in CO2, in the St. Joseph River watershed, Eastern Corn Belt
Agricultural Water Management, Wang, Ruoyu, Bowling, Laura C., Cherkauer, Keith A., Cibin, Raj, Her, Younggu, Chaubey, Indrajeet, 2017

Marginal land suitability for switchgrass, Miscanthus and hybrid poplar in the Upper Mississippi River Basin (UMRB)
Environmental Modelling and Software, Feng, Qingyu, Chaubey, Indrajeet, Engel, Bernard, Cibin, Raj, Sudheer, K. P., Volenec, Jeffrey, 2017

Simulating establishment periods of switchgrass and miscanthus in the soil and water assessment tool (SWAT)
Transactions of the ASABE, Feng, Q., Chaubey, I., Cibin, R., Engel, B., Sudheer, K. P., Volenec, J., 2017

Precision Conservation for Biofuel Production, Chaubey, Indrajeet, Cibin, Raj, Feng, Qingyu, 2016

Watershed-scale impacts of bioenergy crops on hydrology and water quality using improved SWAT model
GCB Bioenergy, Cibin, Raj, Trybula, Elizabeth, Chaubey, Indrajeet, Brouder, Sylvie M., Volenec, Jeffrey J., 2016

Optimal selection and placement of BMPs and LID practices with a rainfall-runoff model
Environmental Modelling and Software, Liu, Yaoze, Cibin, Raj, Bralts, Vincent F., Chaubey, Indrajeet, Bowling, Laura C., Engel, Bernard A., 2016

The future of ecosystem services in the Upper Mississippi River Basin, Muenich, R L, Omani, N, Cibin, Raj, Chaubey, I, Srinivasan, R, 2016

Predictions in ungauged basins: an approach for regionalization of hydrological models considering the probability distribution of model parameters
Stochastic Environmental Research and Risk Assessment, Athira, P., Sudheer, K. P., Cibin, R., Chaubey, I., 2016

Perennial rhizomatous grasses as bioenergy feedstock in SWAT: Parameter development and model improvement
GCB Bioenergy, Trybula, Elizabeth M., Cibin, Raj, Burks, Jennifer L., Chaubey, Indrajeet, Brouder, Sylvie M., Volenec, Jeffrey J., 2015

Hydrologic and water quality impacts and biomass production potential on marginal land
Environmental Modelling and Software, Feng, Qingyu, Chaubey, Indrajeet, Her, Young Gu, Cibin, Raj, Engel, Bernard, Volenec, Jeffrey, Wang, Xiuying, 2015

A computationally efficient approach for watershed scale spatial optimization
Environmental Modelling and Software, Cibin, R., Chaubey, I., 2015

Application of parallel computing methods for improving efficiency of optimization in hydrologic and water quality modeling
Applied Engineering in Agriculture, Her, Younggu, Cibin, Raj, Chaubey, Indrajeet, 2015