David Genereux Humphrey, C. E., Solomon, D. K., Gilmore, T. E., MacNamara, M. R., Genereux, D. P., Mittelstet, A. R., … Jensen, C. R. (2024). Spatial Variation in Transit Time Distributions of Groundwater Discharge to a Stream Overlying the Northern High Plains Aquifer, Nebraska, USA. Water Resources Research, 60(2). https://doi.org/10.1029/2022WR034410 Nickels, J. L., Genereux, D. P., & Knappe, D. R. U. (2023). Improved Darcian streambed measurements to quantify flux and mass discharge of volatile organic compounds from a contaminated aquifer to an urban stream. JOURNAL OF CONTAMINANT HYDROLOGY, 253. https://doi.org/10.1016/j.jconhyd.2022.104124 Zeyrek, C., Mittelstet, A. R., Gilmore, T. E., Zlotnik, V., Solomon, D. K., Genereux, D. P., … Shrestha, N. (2023). Modeling groundwater transit time distributions and means across a Nebraska watershed: Effects of heterogeneity in the aquifer, riverbed, and recharge parameters. JOURNAL OF HYDROLOGY, 617. https://doi.org/10.1016/j.jhydrol.2022.128891 Jensen, C. R., Genereux, D. P., Gilmore, T. E., & Solomon, D. K. (2023). Modified Tracer Gas Injection for Measuring Stream Gas Exchange Velocity in the Presence of Significant Temperature Variation. WATER RESOURCES RESEARCH, 59(6). https://doi.org/10.1029/2023WR034495 Zlotnik, V. A., Solomon, D. K., Genereux, D. P., Gilmore, T. E., Humphrey, C. E., Mittelstet, A. R., & Zlotnik, A. V. (2023). Theory of an Automatic Seepage Meter and Ramifications for Applications. WATER RESOURCES RESEARCH, 59(10). https://doi.org/10.1029/2023WR034766 Rudd, H., Neal, A., Genereux, D. P., Shea, D., & Nichols, E. G. (2023). Vulnerability of wells in unconfined and confined aquifers to modern contamination from flood events. SCIENCE OF THE TOTAL ENVIRONMENT, 901. https://doi.org/10.1016/j.scitotenv.2023.165729 Genereux, D. P. (2022, February). Addendum to "Quantifying Uncertainty in Tracer-Based Hydrograph Separations" for Three-Component Mixing Problems. WATER RESOURCES RESEARCH, Vol. 58. https://doi.org/10.1029/2022WR031987 Jensen, C. R., Genereux, D. P., Gilmore, T. E., Solomon, D. K., Mittelstet, A. R., Humphrey, C. E., … Zlotnik, V. A. (2022, January 6). Estimating groundwater mean transit time from SF6 in stream water: field example and planning metrics for a reach mass-balance approach. HYDROGEOLOGY JOURNAL. https://doi.org/10.1007/s10040-021-02435-8 Marzolf, N. S., Small, G. E., Oviedo-Vargas, D., Ganong, C. N., Duff, J. H., Ramirez, A., … Ardon, M. (2022, July 16). Partitioning inorganic carbon fluxes from paired O-2-CO2 gas measurements in a Neotropical headwater stream, Costa Rica. BIOGEOCHEMISTRY, Vol. 7. https://doi.org/10.1007/s10533-022-00954-4 Petre, M.-A., Salk, K. R., Stapleton, H. M., Ferguson, P. L., Tait, G., Obenour, D. R., … Genereux, D. P. (2022). Per- and polyfluoroalkyl substances (PFAS) in river discharge: Modeling loads upstream and downstream of a PFAS manufacturing plant in the Cape Fear watershed, North Carolina. SCIENCE OF THE TOTAL ENVIRONMENT, 831. https://doi.org/10.1016/j.scitotenv.2022.154763 Humphrey, C. E., Solomon, D. K., Genereux, D. P., Gilmore, T. E., Mittelstet, A. R., Zlotnik, V. A., … MacNamara, M. R. (2022). Using Automated Seepage Meters to Quantify the Spatial Variability and Net Flux of Groundwater to a Stream. WATER RESOURCES RESEARCH, 58(6). https://doi.org/10.1029/2021WR030711 Petre, M.-A., Genereux, D. P., Koropeckyj-Cox, L., Knappe, D. R. U., Duboscq, S., Gilmore, T. E., & Hopkins, Z. R. (2021). Per- and Polyfluoroalkyl Substance (PFAS) Transport from Groundwater to Streams near a PFAS Manufacturing Facility in North Carolina, USA. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 55(9), 5848–5856. https://doi.org/10.1021/acs.est.0c07978 Solomon, D. K., Humphrey, E., Gilmore, T. E., Genereux, D. P., & Zlotnik, V. (2020). An Automated Seepage Meter for Streams and Lakes. WATER RESOURCES RESEARCH, 56(4). https://doi.org/10.1029/2019WR026983 Stewart-Maddox, N. S., Frisbee, M. D., Andronicos, C. L., Genereux, D. P., & Meyers, Z. P. (2018). Identifying the regional extent and geochemical evolution of interbasin groundwater flow using geochemical inverse modeling and Sr-87/Sr-86 ratios in a complex conglomeratic aquifer. CHEMICAL GEOLOGY, 500, 20–29. https://doi.org/10.1016/j.chemgeo.2018.07.026 Osburn, C. L., Oviedo-Vargas, D., Barnett, E., Dierick, D., Oberbauer, S. F., & Genereux, D. P. (2018). Regional Groundwater and Storms Are Hydrologic Controls on the Quality and Export of Dissolved Organic Matter in Two Tropical Rainforest Streams, Costa Rica. Journal of Geophysical Research: Biogeosciences, 123(3), 850–866. https://doi.org/10.1002/2017jg003960 Koh, D.-C., Genereux, D. P., Koh, G.-W., & Ko, K.-S. (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. https://doi.org/10.1016/j.chemgeo.2017.08.009 Solder, J. E., Gilmore, T. E., Genereux, D. P., & Solomon, D. K. (2016). A Tube Seepage Meter for In Situ Measurement of Seepage Rate and Groundwater Sampling. GROUNDWATER, 54(4), 588–595. https://doi.org/10.1111/gwat.12388 Oviedo-Vargas, D., Dierick, D., Genereux, D. P., & Oberbauer, S. F. (2016). Chamber measurements of high CO2 emissions from a rainforest stream receiving old C-rich regional groundwater. BIOGEOCHEMISTRY, 130(1-2), 69–83. https://doi.org/10.1007/s10533-016-0243-3 Heilweil, V. M., Solomon, D. K., Darrah, T. H., Gilmore, T. E., & Genereux, D. P. (2016). Gas-Tracer Experiment for Evaluating the Fate of Methane in a Coastal Plain Stream: Degassing versus in-Stream Oxidation. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 50(19), 10504–10511. https://doi.org/10.1021/acs.est.6b02224 Gilmore, T. E., Genereux, D. P., Solomon, D. K., & Solder, J. E. (2016). Groundwater transit time distribution and mean from streambed sampling in an agricultural coastal plain watershed, North Carolina, USA. WATER RESOURCES RESEARCH, 52(3), 2025–2044. https://doi.org/10.1002/2015wr017600 Burnette, M. C., Genereux, D. P., & Birgand, F. (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. https://doi.org/10.1016/j.jhydrol.2016.05.030 Gilmore, T. E., Genereux, D. P., Solomon, D. K., Farrell, K. M., & Mitasova, H. (2016). Quantifying an aquifer nitrate budget and future nitrate discharge using field data from streambeds and well nests. WATER RESOURCES RESEARCH, 52(11), 9046–9065. https://doi.org/10.1002/2016wr018976 Gilmore, T. E., Genereux, D. P., Solomon, D. K., Solder, J. E., Kimball, B. A., Mitasova, H., & Birgand, F. (2016). Quantifying the fate of agricultural nitrogen in an unconfined aquifer: Stream-based observations at three measurement scales. Water Resources Research, 52(3), 1961–1983. https://doi.org/10.1002/2015wr017599 Solomon, D. K., Gilmore, T. E., Solder, J. E., Kimball, B., & Genereux, D. P. (2015). Evaluating an unconfined aquifer by analysis of age-dating tracers in stream water. WATER RESOURCES RESEARCH, 51(11), 8883–8899. https://doi.org/10.1002/2015wr017602 Ganong, C. N., Small, G. E., Ardón, M., McDowell, W. H., Genereux, D. P., Duff, J. H., & Pringle, C. M. (2015). Interbasin flow of geothermally modified ground water stabilizes stream exports of biologically important solutes against variation in precipitation. Freshwater Science, 34(1), 276–286. https://doi.org/10.1086/679739 Oviedo‐Vargas, D., Genereux, D. P., Dierick, D., & Oberbauer, S. F. (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(12), 2579–2595. https://doi.org/10.1002/2015JG003009 Zanon, C., Genereux, D. P., & Oberbauer, S. F. (2014). Use of a watershed hydrologic model to estimate interbasin groundwater flow in a Costa Rican rainforest. HYDROLOGICAL PROCESSES, 28(10), 3670–3680. https://doi.org/10.1002/hyp.9917 Genereux, D. P., Nagy, L. A., Osburn, C. L., & Oberbauer, S. F. (2013). A connection to deep groundwater alters ecosystem carbon fluxes and budgets: Example from a Costa Rican rainforest. Geophysical Research Letters, 40(10), 2066–2070. https://doi.org/10.1002/grl.50423 Kennedy, C. D., Murdoch, L. C., Genereux, D. P., Corbett, D. R., Stone, K., Pham, P., & Mitasova, H. (2010). Comparison of Darcian flux calculations and seepage meter measurements in a sandy streambed in North Carolina, United States. WATER RESOURCES RESEARCH, 46(9). https://doi.org/10.1029/2009wr008342 Solomon, D. K., Genereux, D. P., Plummer, L. N., & Busenberg, E. (2010). Testing mixing models of old and young groundwater in a tropical lowland rain forest with environmental tracers. WATER RESOURCES RESEARCH, 46. https://doi.org/10.1029/2009wr008341 Genereux, D. P., Webb, M., & Solomon, D. K. (2009). Chemical and isotopic signature of old groundwater and magmatic solutes in a Costa Rican rain forest: Evidence from carbon, helium, and chlorine. WATER RESOURCES RESEARCH, 45. https://doi.org/10.1029/2008wr007630 Kennedy, C. D., Genereux, D. P., Corbett, D. R., & Mitasova, H. (2009). Relationships among groundwater age, denitrification, and the coupled groundwater and nitrogen fluxes through a streambed. WATER RESOURCES RESEARCH, 45(9). https://doi.org/10.1029/2008wr007400 Kennedy, C. D., Genereux, D. P., Corbett, D. R., & Mitasova, H. (2009). Spatial and temporal dynamics of coupled groundwater and nitrogen fluxes through a streambed in an agricultural watershed. WATER RESOURCES RESEARCH, 45(9). https://doi.org/10.1029/2008wr007397 Kennedy, C. D., Genereux, D. P., Mitasova, H., Corbett, D. R., & Leahy, S. (2008). Effect of sampling density and design on estimation of streambed attributes. JOURNAL OF HYDROLOGY, 355(1-4), 164–180. https://doi.org/10.1016/j.jhydrol.2008.03.018 Genereux, D. P., Leahy, S., Mitasova, H., Kennedy, C. D., & Corbett, D. R. (2008). Spatial and temporal variability of streambed hydraulic conductivity in West Bear Creek, North Carolina, USA. JOURNAL OF HYDROLOGY, 358(3-4), 332–353. https://doi.org/10.1016/j.jhydrol.2008.06.017 Kennedy, C. D., & Genereux, D. P. (2007). C-14 groundwater age and the importance of chemical fluxes across aquifer boundaries in confined cretaceous aquifers of North Carolina, USA. RADIOCARBON, 49(3), 1181–1203. https://doi.org/10.1017/s0033822200043101 Kennedy, C. D., Genereux, D. P., Corbett, D. R., & Mitasova, H. (2007). Design of a light-oil piezomanometer for measurement of hydraulic head differences and collection of groundwater samples. WATER RESOURCES RESEARCH, 43(9). https://doi.org/10.1029/2007wr005904 Genereux, D. P., & Jordan, M. (2006, April 15). Interbasin groundwater flow and groundwater interaction with surface water in a lowland rainforest, Costa Rica: A review. JOURNAL OF HYDROLOGY, Vol. 320, pp. 385–399. https://doi.org/10.1016/j.jhydrol.2005.07.023 Genereux, D. P., Jordan, M. T., & Carbonell, D. (2005). A paired-watershed budget study to quantify interbasin groundwater flow in a lowland rain forest, Costa Rica. WATER RESOURCES RESEARCH, 41(4). https://doi.org/10.1029/2004wr003635 Genereux, D. (2004). Comparison of naturally-occurring chloride and oxygen-18 as tracers of interbasin groundwater transfer in lowland rainforest, Costa Rica. Journal of Hydrology, 295(04-Jan), 17–27. https://doi.org/10.1016/j.jhydrol.2004.02.020 Saiers, J. E., Genereux, D. P., & Bolster, C. H. (2004). Influence of calibration methodology on ground water flow predictions. GROUND WATER, 42(1), 32–44. https://doi.org/10.1111/j.1745-6584.2004.tb02448.x Genereux, D. P. (2003). Comparison of methods for estimation of 50-year peak discharge from a small, rural watershed in North Carolina. ENVIRONMENTAL GEOLOGY, 44(1), 53–58. https://doi.org/10.1007/s00254-002-0734-5 Genereux, D. P., Wood, S. J., & Pringle, C. M. (2002). Chemical tracing of interbasin groundwater transfer in the lowland rainforest of Costa Rica. JOURNAL OF HYDROLOGY, 258(1-4), 163–178. https://doi.org/10.1016/S0022-1694(01)00568-6 Genereux, D., & Bandopadhyay, I. (2002, February 28). Reply to comment on "numerical investigation of lake bed seepage patterns: effects of porous medium and lake properties"' by Genereux, D., and Bandopadhyay, I., 2001. Journal of Hydrology 241, 286-303. JOURNAL OF HYDROLOGY, Vol. 258, pp. 265–266. https://doi.org/10.1016/S0022-1694(01)00572-8 Genereux, D., & Guardiario, J. (2001). A borehole flowmeter investigation of small-scale hydraulic conductivity variation in the Biscayne Aquifer, Florida. WATER RESOURCES RESEARCH, 37(5), 1511–1517. https://doi.org/10.1029/2001WR900023 Bolster, C. H., Genereux, D. P., & Saiers, J. E. (2001). Determination of specific yield for the Biscayne Aquifer with a canal-drawdown test. GROUND WATER, 39(5), 768–777. https://doi.org/10.1111/j.1745-6584.2001.tb02368.x Genereux, D., & Bandopadhyay, I. (2001). Numerical investigation of lake bed seepage patterns: effects of porous medium and lake properties. JOURNAL OF HYDROLOGY, 241(3-4), 286–303. https://doi.org/10.1016/s0022-1694(00)00380-2 Zechner, E., Genereux, D., & Saiers, J. (2000). The benefit of using data on canal seepage and tracer concentration in aquifer parameter estimation. In F. Stauffer, W. Kinzelbach, K. Kovar, & E. Hoehn (Eds.), Calibration and Reliability in Groundwater Modelling: Coping with Uncertainty (pp. 256–264). Genereux, D., & Slater, E. (1999). Water exchange between canals and surrounding aquifer and wetlands in the Southern Everglades, USA. Journal of Hydrology, 219(3-4), 153–168. https://doi.org/10.1016/S0022-1694(99)00060-8 Genereux, D., & Guardiario, J. (1998). A Canal Drawdown Experiment for Determination of Aquifer Parameters. Journal of Hydrologic Engineering, 3(4), 294–302. https://doi.org/10.1061/(ASCE)1084-0699(1998)3:4(294) Kraemer, T. F., & Genereux, D. P. (1998). Applications of Uranium- and Thorium-Series Radionuclides in Catchment Hydrology Studies. In Isotope Tracers in Catchment Hydrology (pp. 679–722). https://doi.org/10.1016/B978-0-444-81546-0.50027-6 Genereux, D. P., & Hooper, R. P. (1998). Oxygen and Hydrogen Isotopes in Rainfall-Runoff Studies. In Isotope Tracers in Catchment Hydrology (pp. 319–346). https://doi.org/10.1016/B978-0-444-81546-0.50017-3 Genereux, D. (1998). Quantifying uncertainty in tracer‐based hydrograph separations. Water Resources Research, 34(4), 915–919. https://doi.org/10.1029/98WR00010 Genereux, D., & Pringle, C. (1997). Chemical mixing model of streamflow generation at La Selva Biological Station, Costa Rica. Journal of Hydrology, 199(3-4), 319–330. https://doi.org/10.1016/S0022-1694(96)03333-1 Genereux, D. P., & Hemond, H. F. (1994). Reply [to “Comment on ‘Determination of gas exchange rate constants for a small stream on Walker Branch watershed, Tennessee’ by D. P. Genereux and H. F. Hemond”]. Water Resources Research, 30(5), 1633–1634. https://doi.org/10.1029/94WR00160 Genereux, D. P., Hemond, H. F., & Mulholland, P. J. (1993). Spatial and temporal variability in streamflow generation on the West Fork of Walker Branch Watershed. Journal of Hydrology, 142(1-4), 137–166. https://doi.org/10.1016/0022-1694(93)90009-X Genereux, D. P., Hemond, H. F., & Mulholland, P. J. (1993). Use of radon-222 and calcium as tracers in a three-end-member mixing model for streamflow generation on the West Fork of Walker Branch Watershed. Journal of Hydrology, 142(1-4), 167–211. https://doi.org/10.1016/0022-1694(93)90010-7 Genereux, D. P., & Hemond, H. F. (1992). Determination of gas exchange rate constants for a small stream on Walker Branch Watershed, Tennessee. Water Resources Research, 28(9), 2365–2374. https://doi.org/10.1029/92WR01083 Genereux, D. P., & Hemond, H. F. (1991). Measurement of the radon-222 content of soil gas by liquid scintillation counting. Chemical Geology: Isotope Geoscience Section, 87(3-4), 265–275. https://doi.org/10.1016/0168-9622(91)90025-R Genereux, D. P., & Hemond, H. F. (1990). Naturally Occurring Radon 222 as a Tracer for Streamflow Generation: Steady State Methodology and Field Example. Water Resources Research, 26(12), 3065–3075. https://doi.org/10.1029/WR026i012p03065 Genereux, D. P., & Hemond, H. F. (1990). Three-component tracer model for stormflow on a small appalachian forested catchment — Comment. Journal of Hydrology, 117(1-4), 377–380. https://doi.org/10.1016/0022-1694(90)90103-5