James O. Sickman
James O. Sickman
Department Vice-Chair
Associate Professor of Hydrology
Academic Degrees:
- Ph.D., Watershed Biogeochemistry, U.C. Santa Barbara, 2001
- M.A., Aquatic and Ecosystem Science, U.C. Santa Barbara, 1991
- B.A., Aquatic Biology, U.C. Santa Barbara, 1983
Specialization:
- Watershed hydrology and biogeochemistry, application of stable and radioisotopes to environmental science.
Research Group:
-
Graduate Students
- Andrea Heard - Ph.D., Environmental Sciences program
- Critical loads for atmospheric nutrient deposition in the Sierra Nevada
- Amanda James - Ph.D, Environmental Sciences Program
- Utilizing native plant species as biological sensors for atmospheric deposition
-
Other
- Peter Homyak - Ph.D. 2012, University of California, Riverside - Post Doctoral Researcher
- Steve Sadro - Post Doctoral Researcher
- Studies lake foodwebs and metabolism in the Sierra Nevada
- Danuta Bennett - Assistant Researcher
- Diatomist and aquatic ecologist
- Kevin Skeen - Staff Research Associate
- Field manager for Sierra Nevada research
- Forugh Arsalan - Undergraduate researcher
- Krystal Vasquez - Undergraduate researcher
Representative Publications:
- Homyak, P.M, Sickman, J.O., and J.M. Melack. Pools, transformations and sources of P in high elevations soils: Implications for nutrient transfer to Sierra Nevada lakes. In press in Geoderma.
- Sickman, J.O., Bennett, D.M., Lucero, D.M., Whitmore, T.J., Kenney, W.F. 2013. Diatom-inference models for acid neutralizing capacity and nitrate based on 41 calibration lakes in the Sierra Nevada, California, USA. Journal of Paleolimnology. DOI: 10.1007/s10933-013-9711-0.
- Jepsen, S.M., Molotch, N.P., Williams, M.W., Rittger, K.E., Sickman J.O. 2012. Interannual variability of snowmelt in the Sierra Nevada and Rocky Mountains, USA (1996-2007): Examples from two alpine watersheds. Water Resources Research. DOI: 10.1029/2011WR011006.
- Albertin, A., Sickman, J.O., Pinowska, A., and R.J. Stevenson. 2012. Identification of nitrogen sources and transformations within karst springs using isotope tracers of nitrogen. Biogeochemistry. DOI: 10.1007/s10533-011-9592-0.
- Vicars, W., and J.O. Sickman. 2011. Mineral dust transport to the Sierra Nevada, California: Loading rates and potential source areas. Journal of Geophysical Research, Biogeosciences: DOI:10.1029/2010JG001394.
Courses Taught:
- ENSC 001 Introduction to Environmental Sciences: Natural Resources
- ENSC 163 Physical Hydrology
- ENSC 218 Isotopes in Ecology and Environmental Science
- ENSC 227 Global Change and the Earth System
Graduate Program Affiliations and Research Focus Areas:
-
Research Focus Areas
-
Program
Links:
