Vadose Zone Hydrology, Hydrogeology
Ph.D. in Geoscience, University of Nevada Las Vegas (2016)
M.S. in Water Resources Management, University of Nevada Las Vegas (2004)
B.S. in Physical Geography & Environmental Studies, University of California Santa Barbara (1998)
Dr. Koonce’s current focus is unsaturated water flow in arid soil. He spent a large amount of time during his PhD on the construction, instrumentation, and data analysis at the Desert Research Institute (DRI) Scaling Environmental Processes in Heterogeneous Arid Soils (SEPHAS) Weighing Lysimeter Facility located in Boulder City, NV. His research focused on soil water storage evolution and evaporative physics in bare arid soils. Dr. Koonce has also worked on flow interpretation and analysis of deep saturated water flow within the Death Valley Regional Groundwater Flow System.
Lehmann, P., M. Berli, J.E. Koonce, and D. Or. 2019. Surface Evaporation in Arid Regions: Insights From Lysimeter Decadal Record and Global Application of a Surface Evaporation Capacitor (SEC) Model. Geophysical Res. Letters v. 46, no. 16, p. 9648-9657; doi: 10.1029/2019GL083932.
Dijkema, J., J.E. Koonce, R.M. Shillito, T.A. Ghezzehei, M. Berli, M.J. van der Ploeg, and M.Th. van Genuchten. 2017. Water distribution in an arid zone soil: Numerical analysis of data from a large weighing lysimeter. Vadose Zone J. doi:10.2136/vzj2017.01.0035
Kelleners, T.J., J. Koonce, R. Shillito, J. Dijkema, M. Berli, M.H. Young, J.M. Frank, and W.J. Massman. 2016. Numerical modeling of coupled water flow and heat transport in soil and snow. Soil Science Society America Journal 80:247-263.
Chief, K., M.H. Young, B.F. Lyles, J. Healey, J. Koonce, E. Knight, E. Johnson, J. Mon, M. Berli, M. Menon, and G. Dana. 2009. Scaling environmental processes in heterogeneous arid soils: construction of large weighing lysimeter facility. Division of Hydrologic Sciences, Desert Research Institute, Nevada System of Higher Education, Pub. No. 41249.
Koonce, J.E., Z. Yu, I.M. Farnham, and K. Stetzenbach. 2006. Geochemical interpretation of groundwater flow in the Southern Great Basin. Geosphere v. 2, no. 2, p. 88-101; doi: 10.1130/GES00031.1.
GEOG 103: Physical Geography of the Earth’s Environment
GEOL 100: Natural Disasters
GEOL 101: Introductory Geology: Exploring Planet Earth
GEOL 102: Earth-Life Through Time
GEOL 333: Geomorphology
GEOL 334: Environmental Geology
GEOL 474/674: Hydrogeology