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College of Sciences

Marine, Earth, and Atmospheric Sciences

David Genereux

Professor

5135 Jordan Hall, NC State University, Raleigh NC 27695-8208

919-515-6017

Bio

Field work in NC with PhD student Troy Gilmore
Field work in NC with PhD student Troy Gilmore, left (currently a faculty member at the University of Nebraska)
Field work in Costa Rica, post-doc Diana Oviedo Vargas
Field work in Costa Rica, post-doc Diana Oviedo Vargas (currently research scientist at Stroud Water Research Center)

Since 2000 I have been on the faculty at N.C. State University, where I carry out research and teaching in hydrogeology. Prior to that I was on the faculty at Florida International University (FIU) in Miami, where I held joint appointments between the Department of Geology and two research centers: the Drinking Water Research Center and the Southeast Environmental Research Center. During 2009-2014 I was the Associate Director for Research in the Water Resources Research Institute of the University of North Carolina, and during 2016-2018 served on the board of directors of the Consortium of Universities for the Advancement of Hydrologic Science, Inc. (CUAHSI), including a year as chair of the board in 2017.  I’ve been an associate editor for scientific journals (Water Resources Research and the Journal of Contaminant Hydrology), served on grant program panels at the National Science Foundation (NSF), Environmental Protection Agency (EPA), and Department of Agriculture (USDA), and served as both a member and chair of the Water Quality Technical Committee of the American Geophysical Union (AGU).

My research focuses on hydrogeology and the coupled fluxes of water and chemicals at the interface between groundwater and surface water, including agricultural nutrients, VOCs, and more recently GenX and related PFAS. Gas exchange at stream surfaces is also a focus area.  This work has been funded by NSF, USDA, DOE, and other sources, and most of it is accomplished through collaborative efforts with colleagues in related areas of engineering and geoscience. Most of my projects center around field and lab measurements, with use of models to tackle some questions, and the work has included a range of field settings: the Everglades, forested watersheds in Massachusetts and Tennessee, tropical rainforest in Costa Rica, the Nebraska Sand Hills, and agricultural and urban watersheds in North Carolina.

Recent Publications (*student author  †post-doc author)

Koh, D.C., D.P. Genereux, G.W. Koh, K.S. Ko.  2017.  Relationship of groundwater geochemistry and flow to volcanic stratigraphy in basaltic aquifers affected by magmatic CO2, Jeju Island, Korea.  Chemical Geology 467: 143-158.  doi 10.1016/j.chemgeo.2017.08.009

Gilmore*, T.E., D.P. Genereux, D.K. Solomon, K.M. Farrell, H. Mitasova.  2016.  Quantifying an aquifer nitrate budget and future nitrate discharge using field data from streambeds and well nests.  Water Resources Research, 52: 9046-9065, doi 10.1002/2016WR018976.

Oviedo-Vargas, D., D. Dierick, D.P. Genereux, S.F. Oberbauer.  2016.  Chamber measurements of high CO2 emissions from a rainforest stream receiving old C-rich regional groundwater.  Biogeochemistry, 130: 69-83, doi 10.1007/s10533-016-0243-3.

Heilweil, V., D.K. Solomon, T. Darrah, T.E. Gilmore*, and D.P. Genereux.  2016.  A gas-tracer experiment for evaluating the fate of methane in a coastal plain stream:  Degassing versus in-stream oxidation.  Environmental Science and Technology,  50(19): 10504–10511, doi 10.1021/acs.est.6b02224.

Burnette*, M., D.P. Genereux, F. Birgand.  2016.  In-situ falling-head test for hydraulic conductivity: evaluation in layered sediments of an analysis derived for homogenous sediments.  Journal of Hydrology, 539: 319-329, doi:10.1016/j.jhydrol.2016.05.030.

Gilmore*, T.E., D.P. Genereux, D.K. Solomon, J.E. Solder*. 2016. Groundwater transit time distribution and mean from streambed sampling in an agricultural coastal plain watershed, North Carolina, USA. Water Resources Research, 52, 2025-2044, doi:10.1002/2015WR017600.

Gilmore*, T.E., D.P. Genereux, D.K. Solomon, J.E. Solder*, B.A. Kimball, H. Mitasova, F. Birgand. 2016. Quantifying the fate of agricultural nitrogen in an unconfined aquifer: stream-based observations at three measurement scales. Water Resources Research, 52, 1961-1983, doi:10.1002/2015WR017599.

Solomon, D.K., T.E. Gilmore*, J. Solder*, B. Kimball, D.P. Genereux. 2015. Evaluating an unconfined aquifer by analysis of age-dating tracers in stream water. Water Resources Research,
51, 8883–8899, doi:10.1002/2015WR017602.

Oviedo-Vargas†, D., D.P. Genereux, D. Dierick†, and S.F. Oberbauer. 2015. The effect of regional groundwater on carbon dioxide and methane emissions from a lowland rainforest stream in Costa Rica. Journal of Geophysical Research – Biogeosciences, 120, 2579–2595, doi:10.1002/2015JG003009.

Solder*, J.E., T.E. Gilmore*, D.P. Genereux, and D.K. Solomon. 2015. A tube seepage meter for in situ measurement of seepage rate and groundwater sampling. Groundwater, doi:10.1111/gwat.12388.

Ganong*, C.N., G.E. Small, M. Ardón, W.H. McDowell, D.P. Genereux, J.H. Duff, C.M. Pringle. 2015. Interbasin flow of geothermally-modified groundwater stabilizes stream exports of biologically important solutes against variation in precipitation. Freshwater Science, 34(1): 276–286, doi:10.1086/679739.

Zanon*, C., D.P. Genereux, and S.F. Oberbauer. 2014. Use of a watershed hydrologic model to estimate interbasin groundwater flow in a Costa Rican rainforest. Hydrological Processes, 28: 3670-3680, doi:10.1002/hyp.9917.

Genereux, D.P., L. Nagy*, C.L. Osburn, and S.F. Oberbauer. 2013. A connection to deep groundwater alters ecosystem carbon fluxes and budget: example from a Costa Rican rainforest. Geophysical Research Letters, 40(10): 2066-2070, doi:10.1002/grl.50423.

CV

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Education

BS, Geology/Chemistry, University of Delaware (1984)
MS, Civil Engineering, MIT (1988)
PhD, Hydrology, MIT (1991)