Skip to main content Skip to navigation
Civil and Environmental Engineering Faculty

Dr. Jan Boll

Dr. Jan Boll

Water and Environmental Laboratory (WERL) (hyperlink:
Watershed Hydrology and Water Quality Lab (hyperlink:
Transect of the Americas (hyperlink:




(509) 335-4767


(509) 335-7632


  • Ph.D., Agricultural and Biological Engineering, 1995, Cornell University
  • M.S. Agricultural Engineering, 1988, University of Idaho
  • M.S., Land Use Planning, 1988. The Agricultural University of Wageningen
  • B.S. Land Use Planning, 1985, The Agricultural University of Wageningen


  • Professional Engineering (P.E.) License in State of Idaho

Professional Experience

  • Professor, Civil and Environmental Engineering, WSU, 2015-present
  • Special Assistant to VPR & Science Lead NSF-EPSCoR , University of Idaho, 2013-2015
  • Director, Environmental Science & Water Resources Program, University of Idaho, 2011-2015
  • Professor, Biological and Agricultural Engineering, University of Idaho, 2008-2015
  • Director, Waters of the West (incl. Water Resources Graduate Program), UI, 2006- 2011
  • Associate Professor, Biological and Agricultural Engineering, University of Idaho, 2002-2008
  • Affiliate Professor, CATIE (Centro Agronómico Tropical de Investigación y Enseñanza), Turrialba, Costa Rica, 2001-present
  • Assistant Professor, Biological and Agricultural Engineering, University of Idaho, 1996-2002


  • Excellence in Interdisciplinary and Collaborative Efforts, University of Idaho, 2010
  • Outstanding Research Faculty, College of Engineering at University of Idaho, 2006
  • Outstanding Faculty Award, Environmental Science Program, University of Idaho, 2005
  • R.M. Wade Outstanding Teaching Award, College of Agriculture, 2003
  • Engineer of the Year, ASAE Pacific Northwest Section, 2002
  • Outstanding Young Faculty Award, College of Engineering, University of Idaho, 2000

Research Interests

  • Watershed hydrology
  • Water quality
  • Hydrologic modeling
  • Integrated water resources management
  • Vadose zone hydrology


  • Engineering hydrology
  • Advanced hydrology
  • Environmental water quality


Sánchez-Murillo, Ricardo, A.M. Durán-Quesada, G. Esquivel-Hernández, D. Rojas-Cantillano, C. Birkel, K. Welsh, M. Sánchez-Lull, C.M. Alonso-Hernández, D. Tetzlaff, C. Soulsby, J. Boll, and N. Kurita, and K.M. Cobb. 2019. Deciphering key processes controlling rainfall isotopic variability during extreme tropical cyclones. Nature Communications NCOMMS-18-01461D

Muñoz, E, D.C. Guzman*, Y. Medina, J. Boll, V. Parra, J.L. Arumí. 2019. An adaptive basin management rule to improve water allocation resilience under climate variability and change. A case study in the Laja Lake basin in southern Chile. Water 11(8):1733.

Campos-Arias, P., G. Esquivel-Hernández, J. Francisco Valverde-Calderón, S. Rodríguez-Rosales, J. Moya-Zamora, R. Sánchez-Murillo and J. Boll. 2019. GPS precipitable water vapor estimations over Costa Rica: A comparison against atmospheric sounding and moderate resolution imaging spectrometer (MODIS). Climate 7(5):63. doi:10.3390/cli7050063

Esquivel-Hernández, G. G.M. Mosquera, R. Sánchez-Murillo, A. Quesada-Román, C. Birkel, P. Crespo, R. Célleri, D. Windhorst, L. Breuer, and J. Boll. 2019. Moisture transport and seasonal variations in the stable isotopic composition of rainfall in Central American and Andean Páramo during El Niño conditions (2015-2016). Hydrological Processes 2019:1-16. DOI: 10.1002/hyp.13438

dos Santos, V., M. Dias de Oliveira, J. Boll, R. Sánchez‐Murillo, A.A. Menegário, L.F. Gozzo, and D. Gastmans. 2019. Isotopic composition of precipitation during strong El Niño–Southern Oscillation events in the Southeast Region of Brazil. Hydrological Processes, 33:647–660.

O’Rourke, M., Hall, T. E., Boll, J., Cosens, B., Dietz, T., Engebretson, J., Goralnik, L., Piso, Z., Valles, S., Whyte, K. 2018. Values and policy in interdisciplinary environmental science: A dialogue-based framework for ethics education. Online Ethics Center for Engineering. 8/16/2018 OEC. Accessed: Wednesday, November 28, 2018. <>

Esquivel-Hernández*, G., R. Sánchez-Murillo, A. Quesada-Román, G.M. Mosquera, C. Birkel, and J. Boll. 2018. Insight into the stable isotopic composition of glacial lakes in a tropical alpine ecosystem: Chirripó, Costa Rica. Hydrological Processes DOI: 10.1002/hyp.13286

Givens, J.E., J. Padowski, C.D. Guzman*, K. Malek, R. Witinok-Huber, B. Cosens, M. Briscoe, J. Boll, J. Adam. 2018. Incorporating social system dynamics in the Columbia River Basin: Food-energy-water resilience and sustainability modeling in the Yakima River Basin. Frontiers in Environmental Science 6, 104.

Xue, J., Z. Huo, Q. Huang, F. Wang, J. Boll, G. Huang, Z. Qu. 2018. Assessing sustainability of agricultural water saving in arid area with shallow groundwater” in its current form for publication in Irrigation and Drainage. Irrigation and Drainage. 68(2):205-217.

Welsh*, K.E., J. Boll, R. Sánchez-Murillo, and O. Roupsard. 2018. Isotope hydrology of a tropical coffee agroforestry watershed: Seasonal and event-based analysis. Hydrological Processes. 32(13):1965-1977.

Esquivel-Hernández*, G., R. Sánchez-Murillo, C. Birkel, and J. Boll. 2018. Climate and water conflicts coevolution from tropical development and hydro-climatic perspectives: A case study of Costa Rica. JAWRA 50(2):451-470). DOI: 10.1111/1752-1688.12617

Toohey*, R., J. Boll, E.S. Brooks, and J.R. Jones. 2018. Effects of land use on soil properties and hydrological processes at the point, plot, and field scale in volcanic soils in the Turrialba Region of Costa Rica. Geoderma 315:138-148.

Guzman*, C.D., S.A. Tilahun, D.C. Dagnew, F.A. Zimale, A.D. Zegeye, J. Boll, J.-Y. Parlange, T.S. Steenhuis. 2017. Spatio-temporal patterns of groundwater depths and soil nutrients in a small watershed in the Ethiopian highlands. J. of Hydrology 555 (2017): 420-434.

Xue, J.  H. Guan, Z. Huo, F. Wang, G. Huang, J. Boll. 2017. Water saving practices enhance regional efficiency of water consumption and water productivity in an arid agricultural area with shallow groundwater. Agric. Water Management, 194:78–89.

Squires*, A.L., J. Boll, and E.S. Brooks. 2017. On the role of spatial, temporal and climate forces on stream sediment loading from rural and urban ecosystems. JAWRA

Esquivel-Hernández*, G., R. Sánchez-Murillo, C. Birkel, S.P. Good, and J. Boll. 2017. Hydroclimatic and ecohydrological resistance/resilience conditions across tropical biomes of Costa Rica. Ecohydrology 10(6)

Al-Hamdan*, O.Z., F.B. Pierson, M.A. Nearing, C.J. Williams, M. Hernandez, J. Boll, S.K. Nouwakpo, M.A. Weltz, K. Spaeth. 2017. Developing a parameterization approach of soil erodibility for the Rangeland Hydrology and Erosion Model (RHEM). Transactions of the ASABE 60(1), 85-94.

Sánchez-Murillo, R., A.M. Durán-Quesada, C. Birkel, G. Esquivel-Hernández, J. Boll. 2017. Tropical precipitation anomalies and d-excess evolution during El Niño 2014-16. Hydrological Processes, 31(4):956-967. DOI 10.1002/hyp.11088.

Williams*, C.J., F.B. Pierson, K.E. Spaeth, J.R. Brown, O.Z. Al-Hamdan, M.A. Weltz, M.A. Nearing, J.E. Herrick, J. Boll, P.R. Robichaud, D.C. Goodrich, P. Heilman, D.P. Guertin, M. Hernandez, H. Wei, V.O. Polyakov, G. Armendariz, S.K. Nouwakpo, S.P. Hardegree, P.E. Clark, E.K. Strand, J.D. Bates, L.J. Metz, and M.H. Nichols. 2016. Application to transformative changes on Great Basin Sagebrush rangelands. Rangelands 38:379-388.

Boll, J., T. Link, M. Santelmann, R. Heinse, and B. Cosens. 2016. Análisis y síntesis de buenas prácticas en la educación socioambiental interdisciplinaria en Estados Unidos.» Interdisciplina 4(10):117-146.

Yousefi, S., H. Moradi, J. Boll, and S. Schönbrodt-Stitt. 2016. Effects of road construction on soil degradation and nutrient transport in Caspian Hyrcanian mixed forests. Geoderma 284:103-112.

Brooks, E.S., M. Dobre, W.J. Elliot, J.Q. Wu, and J. Boll. 2016. Watershed-scale evaluation of the Water Erosion Prediction Project (WEPP) model in the Lake Tahoe basin. J. Hydrol. 533:389-402.

Williams*, C.J., F.B. Pierson, K.E. Spaeth, J.R. Brown, O.Z. Al-Hamdan, M.A. Weltz, M.A. Nearing, J.E. Herrick, J. Boll, P.R. Robichaud, D.C. Goodrich, P. Heilman, D.P. Guertin, M. Hernandez, H. Wei, S.P. Hardegree, E.K. Strand, J.D. Bates, L.J. Metz, and M.H. Nichols. 2016. Incorporating hydrologic data and ecohydrologic relationships into ecological site descriptions. Rangeland Ecology & Management, 69:4-19. (

Corrales, J.L., R. Sánchez-Murillo, G. Esquivel-Hernández*, E. Herrera, and J. Boll. 2016. Tracking the water fingerprints of Cocos Island: a stable isotope analysis of precipitation, surface water, and groundwater. Rev. Biol. Trop. (Int. J. Trop. Biol. ISSN-0034-7744) Vol. 64 (Suppl. 1): S105-S0120.

Sánchez-Murillo*, R., C. Birkel, K. Welsh*, G. Esquivel-Hernández, J. Corrales-Salazar, J. Boll, E. Brooks, O. Roupsard, O. Sáenz-Rosales, I. Katchan, R. Arce-Mesén, C. Soulsby, and L.J. Araguás- Araguás. 2016. Key drivers controlling stable isotope variations in daily precipitation of Costa Rica: Caribbean Sea versus Eastern Pacific Ocean moisture sources. Quaternary Science Reviews, 131 (PartB):250-261 (