• Water Resources Systems, Hydrology of Natural and Mixed Land Use Systems, Non-point Source Pollution, Water Quality, Conservation Practice Effectiveness, Eco-hydrology, Modeling

Dr. Boll specializations include teaching in the areas of environmental water quality, hydrology, irrigation and water management, and interdisciplinary methods in water resources. His research involves the eco-hydrology, looking at the processes that the landscape influences the quantity and quality of water available for drinking and the natural environment. Dr. Boll has research projects on water and pollutant transport such as nutrients, micro-organisms, and other chemicals. Field observations are combined with modeling using geographic information systems. His involvement with the Waters of the West program gives him the opportunity to work with other scientists and professionals on integrated water resources analysis of watersheds and river basins in the Pacific Northwest. Internationally, Dr. Boll has projects and collaborations in Costa Rica, El Salvador, Indonesia, The Netherlands, and Chile.

• Dijksma, R., E.S. Brooks, and J. Boll. 2010. Groundwater recharge in Pleistocene sediments overlying basalt aquifers in the Palouse Basin, USA: modeling of distributed recharge potential and identifying water pathways. Hydrogeology (in press)
• Tosakana, N.S.P., L.W. Van Tassell, J.D. Wulfhorst, J. Boll, R.L. Mahler, E.S. Brooks, and S. Kane. 2010. Determinants of the Adoption of Conservation Practices by Farmers in the Northwest Wheat and Range Region. Journal of Soil and Water Conservation (in press).
• Brooks, E.S., J. Boll, A. Snyder, K.M. Ostrowski, S.L. Kane, J.D. Wulfhorst, L.W. Van Tassell, and R. Mahler. 2010. Long term sediment loading trends in the Paradise Creek Watershed. Journal of Soil and Water Conservation (in press).
• Bitelli, M., F. Tomei, A. Pistocchi, M. Flury, J. Boll, E.S. Brooks, and G. Antolini. 2010. Development and testing of a physically-based, three-dimensional model of surface and subsurface hydrology. Advances in Water Resources 33:106-22.
• Swiger, N., and J. Boll. 2009. Groundwater sampling to achieve aquifer representativeness. The Professional Geologist, 46(6): 41-49.
• Lin, H.S., E. Brooks, P. McDaniel, and J. Boll. 2008. Hydropedology and Surface/Subsurface Runoff Processes. In M. G. Anderson (Editor-in-Chief) Encyclopedia of Hydrologic Sciences. John Wiley & Sons, Ltd. DOI: 10.1002/0470848944.hsa306.
• Gorsevski, P., J. Boll, E. Gomezdelcampo, and E.S. Brooks. 2008. Dynamic riparian buffer widths from potential non-point source pollution areas in forested watersheds. Forest Ecology and Management 256;664-673.
• McDaniel, P.A., M.P. Regan, E. Brooks, J. Boll, S. Barndt, A. Falena, S.K. Young, J.E. Hammel. 2008. Linking fragipans, perched water tables, and catchment-scale hydrological processes. Catena 73:166-173.
• Brooks, E.S., J. Boll, and P.A. McDaniel. 2007. Distributed and integrated response of a GIS-based distributed hydrologic odel. Hydrologic Processes 21:110-122.
• Hilberts, A.G.J., P.A. Troch, C. Paniconi, and J. Boll. 2007. Low-dimensional modeling of hillslope subsurface flow: the1 relationship between rainfall, recharge, and unsaturated storage dynamics. Water Resour. Res. Vol 43, W03445, doi:10.1029/2006WR004964.
• de Rooij, G. H. O.A. Cirpka, F. Stagnitti, S.H. Vuurens, and J. Boll. 2006. Solute transport and dilution in heterogeneous soils: analyzing multicompartment percolation sampler data. Vadose Zone Journal 5: 1086-1092.
• Gorsevski, P.V., P.E. Gessler, J. Boll, W.J. Elliot, R.B. Foltz. 2006. Spatially and temporally distributed modeling of landslide susceptibility. Geomorphology 80(3-4): 178-198
• Brooks, E.S., J. Boll, W.J. Elliot and T. Dechert. 2006. A GPS/GIS-based approach for sediment detachment and delivery modeling on large road networks using WEPP. Journal of Hydrologic Engineering. 11(5):418-426.
• Dai. X and J. Boll. 2006. Settling velocity of Cryptosprodium Parvum and Giardia Lamblia. Water Research. 40(6):1321-1325
• Hasan, S., P.A. Troch, J. Boll, and C. Kroner. 2006. Modeling the hydrological effect on local gravity at Moxa, Germany. J. Hydrometeor 7, 346-354.
• Vuurens, S., F. Stagnitti, G. de Rooij, J. Boll, L.(Ling) Li, X. Xiong, M. LeBlanc, D. Ierodiaconou, S. Salzman, and V. Versace. 2005. Quantifying effects of soil heterogeneity on groundwater pollution in four sites in the USA. Scientia Sinica (Science in China), Series C, Life Sciences), 48(1), pp.118-127. (Special Issue)
• Sánchez, M. and J. Boll. 2005. The effect of flow path and mixing layer on phosphorus release: Physical mechanisms and temperature effects. Journal of Environmental Quality. 34:1600-1609.
• O’Geen, A.T., P.A. McDaniel, J. Boll, and C.K. Keller. 2005. Paleosols as deep regolith: Implications for ground-water recharge across a loessial climosequence. Geoderma 126:85-99.
• Walter M.T., E.S. Brooks, D.K. McCool, L.G. King, M. Molnau, and J. Boll. 2005. Process-based snowmelt modeling: does it require more input data than temperature-index modeling? J. Hydrol. 300 (1-4):65-75.
• Walter, M.T., V.K. Mehta, A.M. Marrone, J. Boll, P.G. Marchant, T.S. Steenhuis, and M.F. Walter. 2005. Closure to ‘Simple Estimation of Prevalence of Hortonian Flow in New York City Watersheds. ASCE J. Hydrol. Eng 10 (2): 169-170.

• Programa de Desarrollo Productivo Riego sostenible para la produccion de hortalizas para el Mercado nacional. Las Pilas, El Salvador. Collaboration with CATIE (Costa Rica), funded by Millenium Challenge Corporation grant, Sept 2008-Sept 2010.
• Preliminary steps towards understanding the effects of global climate change on long-term trends in water resources in Idaho. Idaho Department of Water Resources/Idaho Water Resources Research Institute/Pacific Northwest Water Resources Council, August 2007 – July 2008.
• Risk assessment using the rangeland hydrology and erosion model for Idaho and Arizona. Collaboration with USDA-ARS scientists in Boise, Oct 2007 – Sept 2011.
• Assessing the sources and transport of fine sediment in response to management practices in the Tahoe Basin using the WEPP model. Collaboration with USDA-Forest Service and Washington State University. The Lake Tahoe Research Group, July 2007 – June 2009.
• Application of Lecture Capture Technology (LCT) to expand degree programs, enhance teaching and learning and transform curricula. Idaho Technology Incentive Grants (ITIG) Program State Board of Education, July 2007 – June 2008.
• Synthesis and analysis of 13 CEAP projects in the USA. Collaboration with scientists from Cornell University, University of Georgia, and North Carolina A&T through USDA-CSREES-CEAP. October 1, 2007 – September 30, 2011.
• Waters of the West: Towards an interdisciplinary, sustainable water resources program. University of Idaho. July 2006 – June 2011.
• Evaluation of conservation practices in a mixed-land use watershed using cumulative effects modeling and interdisciplinary analyses. Research on erosion and sediment sources in Paradise Creek near Moscow, ID funded by USDA-CEAP. September 15, 2004-September 14, 2008.

• Palouse Basin Visioning Tool development with faculty in Waters of the West, collaborating with the Palouse Basin Aquifer Committee. September 2007 – present.
• Evaluation of conservation practices in a mixed-land use watershed using cumulative effects modeling and interdisciplinary analyses. Working with land owners in the Paradise Creek watershed near Moscow, ID to reduce erosion and evaluate effectiveness of conservation practices, and funded by USDA-CEAP. September 15, 2004-September 14, 2008.

• Award for Excellence in Interdisciplinary and Collaborative Efforts (University of Idaho), First time, university-wide, award for efforts working with faculty in Waters of the West, contributing to university-wide program development, and interdisciplinary collaborations in teaching, research and engagement. April 2010
• Outstanding Research Faculty in the College of Engineering at University of Idaho, 2006
• Outstanding Faculty Award, Environmental Science Program, University of Idaho, 2005
• R.M. Wade Outstanding Teaching Award in College of Agriculture, 2003