John Keyantash

Associate Professor of Earth Sciences

Department of Earth Sciences
California State University, Dominguez Hills
1000 E. Victoria Street Carson, CA 90747
Office: NSM D-325 Tel: (310) 243-2363

Ph.D., Civil Engineering, University of California, Los Angeles, 2001
M.S., Atmospheric Sciences, University of California, Los Angeles, 1997
B.S., Environmental Science, Oregon State University, 1992

GEO 412 Rivers and Streams
EAR 476 Groundwater GEO 200 Physical Geography
GEO 315 The Weather
GEO 370 Numerical Methods in Geography
SMT 312 Natural Disasters
SMT 416 Earth Science for Teachers

John Keyantash is Associate Professor in the Department of Earth Sciences, with specialization in hydroclimatology.  His research includes quantifying the severity of droughts, and the hydrographic characteristics of large waterfalls. He is interested in streamflow statistics—including the timing and volume of spring runoff—and has performed GIS analyses for the spatial distribution of stream gauges in the Sierra Nevada Mountains.  He has also employed neural network models to estimate the potential effects of climate change on California salmon populations.

Dr. Keyantash is interested in high-impact practices for college undergraduates, and is a campus representative for the CSUDH initiative Encounter With Student Success. Since 2005, he has been involved in the development of elementary/middle school classroom science materials and teacher training for the Los Angeles Unified School District (LAUSD), via the usage of a science inquiry approach.


  • Keyantash, J., 2011. Using GIS to map streamflow measurement deficiencies in remote watersheds.  CSU Geospatial Review, San Francisco State Univ., v. 9, Spring 2011.

  • Hidalgo H., L. Brekke, N. Miller, N. Quinn, J. Keyantash and J. Dracup, 2006. Assessment of the impacts of climate change on the water allocation, water quality and salmon production in the San Joaquin River Basin. Climate Change and Variability: Impacts and Responses, M. Ruth, K. Donaghy, and P. Kiershen, Eds., Edward Elgar Publishing, Northampton, MA, pp. 30–57.

  • Keyantash, J. and J.A. Dracup, 2004. An Aggregate Drought Index: Assessing Drought Severity Based on Fluctuations in the Hydrologic Cycle and Surface Water Storage, Water Resources Research, 40, W09304, doi:10.1029/2003WR002610.

  • Keyantash, J. and J.A. Dracup, 2002. The Quantification of Drought: An Analysis of Drought Indices. Bulletin of the American Meteorological Society, 83 (8), 1167-1180.

  • Keyantash, J. and J.A. Dracup, 1998. The Timing of Peak Spring Runoff from Yosemite National Park. Proc. Fifteenth Annual Pacific Climate Workshop, R. Wilson and L.D. Buffaloe, Eds. Tech. Report 64 of the Interagency Ecological Program for the San Francisco Estuary.

American Geophysical Union
CSU Water Resources and Policy Initiatives (WRPI) affinity group
CSU GIS Specialty Center
CSUDH Center for Urban Environmental Research (CUER)