Rachel Gabor

Rachel Gabor

PhD 2013 in Environmental Studies

  • PhD Candidate, Environmental Studies
  • MS Candidate; Hydrology, Water Resources, and Fluid Mechanics Engineering
  • Graduate Research Assistant, INSTAAR



  • BS (chemistry): Harvey Mudd College, 2004
  • MS (chemistry): University of Minnesota - Twin Cities, 2005

Contact Information

(Office) 303 735-2495


Hydrology, biogeochemistry, nutrient cycling, analytical spectroscopy.

Research Interests

dissolved organic matter; soil organic matter; spectroscopy; hydrology; watershed biogeochemistry


I work in the Boulder Creek Critical Zone Observatory using fluorescence spectroscopy to study dissolved organic matter in the stream and water-soluble organic matter in the soil.  I use concepts from biogeochemistry and hydrology to better undestand the biogeochemical role of organic matter in each of these systems and how the different organic matter pools are connected.

I'm also actively involved in outreach with the CZO and Science Discovery and with teaching on campus.  I work as a lead with the graduate teacher program and in Spring 2013 will be teaching a class on ecology and policy of US waterways.


  • Hydrologic Sciences Symposium Student Speaker Award, CU-Boulder Hydrologic Sciences, 2009
  • Hydrologic Sciences Symposium Student Speaker Award, CU-Boulder Hydrologic Sciences, 2012




Garrett Rue, , Rachel Gabor, Pitlick, J., Tfaily, M.Diane M. McKnight 2017: Concentration-discharge relationships during an extreme event: Contrasting behavior of solutes and changes to chemical quality of dissolved organic material in the Boulder Creek Watershed during the September 2013 flood. Special section, "Concentration-Discharge Relations in the Critical Zone." Water Resources Research, 53(7): 5276-5297. DOI: 10.1002/2016WR019708

Matt Miller, Boyer, E. W., Diane M. McKnight, Brown, M. G., Rachel Gabor, Hunsaker, C. T., Iavorivska, L., Inamdar, S., Johnson, D. W., Kaplan, L. A., Lin, H., McDowell, W. H., Perdrial, J. N. 2016: Variation of organic matter quantity and quality in streams at Critical Zone Observatory watersheds. Water Resources Research, 52(10): 8202-8216. DOI: 10.1002/2016WR018970

Rachel Gabor, Baker, A., Diane M. McKnightMatt Miller 2014: Fluorescence indices and their interpretation. In Coble, P., Lead, J., Baker, A., Reynolds, D., and Spencer, R. G. M. (eds.), Aquatic Organic Matter Fluorescence. Cambridge University Press, 303-338. ISBN 9780521764612

Leong, D. N. S., Donner, S. D., Hassan, M. A., Rachel Gabor, Drummond, J. D. 2014: Sensitivity of stoichiometric ratios in the Mississippi River to hydrologic variability. Journal of Geophysical Research—Biogeosciences, 119(6): 1049-1062. DOI: 10.1002/2013JG002585

Perdrial, J. N., Perdrial, N., Harpold, A., Gao, X., Rachel Gabor, LaSharr, K., Chorover, J. 2012: Impacts of sampling dissolved organic matter with passive capillary wicks versus aqueous soil extraction. Soil Science Society of America Journal. 76(6): 2019-2030. DOI: 10.2136/sssaj2012.0061

Theses & Dissertations