Timothy R. Ginn
Professor
Civil & Environmental Engineering
2001 Engineering III
(530) 752-1707
trginn@ucdavis.edu
Ph.D. 1988, Purdue University
Professor Ginn received his undergraduate degrees in Classics and Hydrology from the University of Virginia and his masters (1985) in water resource systems and doctorate (1988) in hydrogeology from Purdue University Civil Engineering . Before joining the UCD faculty in 1996, Dr. Ginn was employed as a senior research scientist at Battelle's Pacific Northwest National Laboratory PNNL in Richland, Washington.
He has been involved in quantitative research in reactive transport of multiphase, multicomponent mixtures with inorganic, organic, and biotic components in natural and engineered environments. Areas of specialization include upscaling multicomponent reactive transport in heterogeneous porous media by streamtube techniques, in situ bioremediation, subsurface bacterial transport and colloid filtration theory, modeling microbial and macrobial population dynamics and ecotoxicology, multiphase diffusive mass transfer, disinfection of particle-associated bacteria, estimation of groundwater recharge and age, and inverse problems.
ResearchPages Students and Associates Teaching Publications Presentations
Projects:
US DOE: Field Investigations of Microbially-Facilitated Calcite Precipitation for Immobilization of Strontium-90 and Other Trace Metals in the Subsurface (co-PIs Robert Smith, U Idaho; Y. Fujita, INEL; S. Hubbard, LBL), 2007-2009.
US DOE: Subsurface Uranium Fate and Transport: Integrated Experiments and Modeling of Coupled Biogeochemical Mechanisms of Nanocrystalline Uraninite Oxidation by Fe(III)-(hydr)oxides (co-PIs Brent Peyton, Montana State; Rajesh Sani, SDSMT; N. Spycher, LBL), 2007-2009.
CA ARB/WRB/OEHHA/DTSC/EPA: A Multimedia Risk Assessment for New Fuels in California: Biodiesel and LCFS Fuels (coPIs, T. McKone, LBL), 2006-2009.
UC WRC: Comparative Inverse Modeling with Combination of Multiphysics Codes and Parameter Estimation Snap-on Tools (co-PI L. Foglia, LWA), 2007-2009.
US NSF: Metal Toxicity in Microbial Consortia: Response to Acid Mine Drainage at Lake Coeur d'Alene, Idaho (co-PI Brent Peyton, WSU), 2004-2007.
US NSF: Horizontal Gene Transfer in Subsurface Microbial Communities (co-PI John Cushman, Purdue), 2004-2009.
CA EPA: Multimedia Risk Assessment for New Fuels in California: Review and Guidelines Development, 2003-2005.
CA State Transportation Department (CALTRANS): Modeling Roadway Contaminant Fate and Transport During Infiltration in BMPs, 2003-present.
CA State Water Control Board: Compatibility and Permeability of Underground Storage Tank Materials to Ethanol-Blended Automotive Fuels, 2000-2001
UC WRC: Application of a New Model for Groundwater Age Distributions: Modeling and Isotopic Analysis of Artificial Recharge in the Rialto-Colton Basin, California (co-PI Linda Woolfenden, USGS), 1999-2002.
US NSF: Penetration of Chemical Disinfectants into Particles Developed in Water Treatment: Impact on the Biological Quality of Post-Disifected Water (co-PI Frank Loge, WSU), 1999-2002
US DOE EMSP : Dynamics of Coupled Contaminant and Microbial Transport in Heterogeneous Porous Media, 1997-2000.
US DOE NABIR : The Influence of Heterogeneity and Growth on Microbial Transport in Saturated Porous Media, (co-PI E.M. Murphy, PNL), 1998-2001
US DOE NABIR : Data Analysis/Integration for Comparative Oxic/Anoxic Field Injections of Microbes.(co-PI T. Scheibe, PNL), 1998-2002
Current Students and Associates:
Montarat Issarangkun Na Ayutthaya MS CEE, missa@ucdavis.edu. Multicomponent reactive transport of uranite reoxidation, effects of sulfide, role of siderophores and chelators.
Tammer Barkouki MS CEE, thbarkouki@ucdavis.edu. Multicomponent reactive transport of uraninite reoxidation, multicomponent transport of ureolytic-induced calcite precipitation and strontium co-precipitation. Mercury fate and transport in estuaries.
Laura Foglia Postdoctoral Associae CEE, lfoglia@ucdavis.edu Groundwater inverse problems, coupled groundwater - surface water modeling, Engineering education and teaching, Groundwater age, Nitrate occurrence and fate.
Hanieh Haeri PhD CEE, hhaeri@ucdavis.edu Groundwater inverse problems including groundwater age.
Tyler Hatch MS CEE, hatch.tyler@gmail.com Biodiesel risk assessment, fish population dynamics.
Elisabetta Lambertini, PhD CEE, elambertini@ucdavis.edu
(co-advising w/Prof. Loge) Environmental biotechnology, environmental stressors in populations, gene transfer and regulation in microbes.
Philip L'Amoreaux BSCE CEE, pmlamoreaux@ucdavis.edu. Horizontal gene transfer, biodiesel risk assessment.
Mohamed Nassar PhD CEE, mknassar@ucdavis.edu. Groundwater modeling, reactive transport, inverse problems.
Kirk Nelson PhD CEE, Postdoctoral Associate CEE, knelson@ucdavis.edu
Colloid filtration theory, kinetics of horizontal gene transfer in porous media.
Vanessa Nino BSCE, vmnino@ucdavis.edu. Biodiesel risk assessment.
Sevinc Sema Sengor PhD CEE, Postdoctoral Associate CEE ssengor@ucdavis.edu
Biogeochemical cycling of metals in multicomponent biotic/abiotic model of acid-mine impacted Lake Coeur d'Alene, Idaho.
Tess Weathers MS CEE, tess.weathers@gmail.com. Multicomponent reactive transport of ureolytic-induced calcite precipitation and strontium co-precipitationm, streamtube-ensemble techniques for well-to-well reactive transport modeling. Mercury fate and transport in estuaries.
Graduated Students, Prior Associates:
Hakan Basagaoglu, Postdoctoral Associate 2000-2002, Radial diffusion modeling,
streamtube network models for solute transport, wastewater particle disinfection. Southwest Research Institute.
Eileen Belding, MS CEE, 2005
Permeable reactive barriers with dynamic permeability and porosity
David Bendz, Postdoctoral Associate 2000- 2001, Surface complexation modeling
with distributed travel times in subsurface porous media. Swedish Geophysical
Institute, Sweden
Chris Brugato, MS CEE 1999, Anaerobic microbial consortium degradation kinetics. Westech Engineers, Inc., Salem OR
Esther Chung, MS CEE 2004, Storage and conveyance materials compatibility and
permeability to ethanol-based fuels. CH2MHill, Sacramento, CA
Kristin Curthoys, BSCE CEE, Geochemical modeling of lacustrine benthic sediments, Consulting, Citrus Heights, CA
Limor Geisler, MS, 2004, River hydraulics modeling. Madison, WI
Hanieh Haeri, MS CEE 2007 (co-advised w/Prof. Loge) Fisheries population dynamics and stressors.
Karen Lam Fat Cheong Him, MS CEE, Metal toxicity measures. CDM, Ann Arbor, MI
Matt Diaz, MS CEE, Integrative screening model for stormwater infiltration. Chevron, Richmond, CA
Bryton Johnson, MS 2000, Modeling deep aquifer contaminants at Tooele Army Depot, Utah. US Army Corps of Engineers, Sacramento, CA
Arash Massoudieh, PhD CEE,
Modeling cohesive particulate suspensions with colloid-facilitated transport, radial diffusion, vertical infiltration of metals and organics in infiltration basin BMPs, kinetics of horizontal gene transfer in subsurface biotia, colloid filtration theory. Faculty member at Catholic University of America, Washington D. C.
Ann Mathew, MS CEE 2006, Kinetics of microbial attachment/detachment in
saturated porous media. San Diego, CA
Cindy McClain, BS 2008, Arsenic fate and transport, Mercury fate and transport in estuaries.
Kirk Nelson, MS CEE 2001, PhD CEE 2004, Colloid filtration theory. USBR, Sacramento, CA
Yuksel Onsoy, Ph.D. 2004, Nitrate fate and transport in the vadose zone. Kennedy Jenks Consulting, San Francisco, CA
Daniel Patten MS CEE 2008, Biodiesel and pyrolysis oil fuel risk assessment. Kennedy Jenks Consulting, San Francisco, CA
Mathias Perle, MS LAWR, MS CEE, Groundwater age transience and sampling by pumping. Upper Deschutes Watershed Council, Oregon
Mahbubur Rahman, Postdoctoral Associate 2004-2005, Stability analyses of delay-difference equations in population dynamics. Univ. N. FL Math Department
Uma Seeboonruang, PhD CEE 2002, Upscaling geochemical heterogeneity in
hydrogeology. King Mongkut University, Bangkok, Thailand
Rochelle Shang, PhD CEE 2002, Fieldscale application of streamtube ensemble
models for subsurface fate and transport. URS Corporation, Hawaii
Lynette Shipsey, MS CEE, Bacterial chemotaxis in porous media.
Irina Tikhonova, Postdoctoral Associate CEE.
Mathematics of dose-structured population dynamics, analysis of Bay-Delta striped bass populations
Michael C. Wademan, MS CEE 2000, Bacterial transport in porous media. Nolte & Associates, Sacramento, CA
Linda Woolfenden, PhD LAWR 2004, Deterministic simulation of the age of groundwater. USGS, Sacramento, CA
Teaching:
Pollution and Populations (FRS 001).
Freshman seminar on the interactions between chemical stressors and population dynamics
Probability and Statistics for Engineering Systems Analysis (ECI 114).
Introductory probability and statistical concepts for engineering students.
Groundwater Systems Design (ECI 144).
Introductory hydrogeology; well-flow systems; groundwater quality and contamination, management; intro. to groundwater modeling.
Water Quality Management (ECI 148A).
Basic concepts of water quality, water and wastewater treatment processes, and water quality management alternatives.
Advanced Hydrogeology: Flow (ECI 272A).
Continuum and mixture-mechanics of groundwater occurrence and motion via mass and momentum balances, hydraulics of groundwater, boundaries, and recharge; geologic properties controlling groundwater flow, heterogeneity and statistical properties of spatial random fields; introduction to stochastic hydrogeology.
Advanced Hydrogeology: Transport (ECI 272B).
Mechanics and governing equations for advective-dispersive/diffusive transport of solutes and suspensions in porous media; potential theory for two-dimensional transport in confined and unconfined aquifers; diffusive mass transfer with radial diffusion and effective multi-domain exchange models; deterministic and stochastic approaches to modeling transport; streamline and streamtube ensemble approaches to upscaling transport in heterogeneous aquifers.
Subsurface Reactive Transport (ECI 272C).
Multicomponent mixtures and their interactions during advective-dispersive transport in porous media; survey of chemical and microbiological reactions involving inorganic and organic components in natural aquifer materials; formulation of equilibrium and kinetic mass transformation models, and complex reaction networks; solution approaches via operator-splitting and DAE systemsInverse Problems (ECI 289B).
Formulation and solution of inverse problems in distributed parameter models, using groundwater flow and reactive transport modeling as contexts. Multivariate estimation and optimization review, Maximum Likelihood background, and exercises and applications with UCODE indirect inverse modeling tool. Co-taught with Dr. Laura Foglia.
Recent Publications:
2009-2008
Massoudieh, A., D. Zagar, P. G. Green, C.
Cabrera-Toledo, M. Horvat, T. R. Ginn, T. Barkouki, T. Weathers, F. A.
Bombardelli, Modeling mercury fate and transport in Surface water
systems, in review in Balaz, I., C. Gualtieri and D. Mihailovic,
editors, Advances in Environmental Fluid Mechanics.
Massoudieh, A., C. Crain, E. Lambertini, K. E. Nelson, T. Barkouki, P. L’Amoreaux, F. J. Loge, T. R. Ginn, Kinetics of conjugative gene transfer among bacteria attached to surfaces in granular porous media, in review, Journal of Contaminant Hydrology, 2009.
Massoudieh
A., F. A. Bombardelli and T. R. Ginn, A coupled mathematical modeling
approach for reactive sediment facilitated contaminant transport in
riverine systems", in review, Journal
of Contaminant Hydrology, 2009.
Ginn, T. R., H. Haeri, L. Foglia, and A. Massoudieh, Brief Notes on
Groundwater Age, in review, Transport
in Porous Media, 2009.
Moberly, J. G., T.
Borch, R. K. Sani, N. F. Spycher, S. S. Sengor, T. R. Ginn, B. M.
Peyton, Heavy Metal-Mineral Associations in Coeur d'Alene River
Sediments: A Synchrotron-Based Analysis, in press, Water Air and Soil
Pollution, 2009.
Rastogi,
G., R.K. Sani, B. M. Peyton, J. Moberly,
T. R Ginn, Molecular
Studies on the Microbial Diversity Associated with
Loge
F. J., E. Lambertini, M.
A.Borchardt, H. Basagaoglu, and T. R. Ginn, Effects of Etiological
Agent and Bather Shedding of Pathogens on Interpretation of
Epidemiological Data Used to Establish Recreational Water Quality
Standards, Risk Analysis,
29(2): 257-266 2009.
Joyce B. A., W. W. Wallender, T. R.
Ginn, Modeling the transport of spray-applied pesticides from fields
with vegetative cover, Transactions of the ASABE, 51(6):
1963-1976, 2008.
Massoudieh A. and T. R. Ginn,
Modeling Colloid-Enhanced Contaminant Transport in Stormwater
Infiltration Basin Best Management Practices, Vadose Zone Journal, 7(4):
1215-1222, 2008.
Massoudieh A. D, Ju, T. Young, T. R.
Ginn, Approximation of a radial diffusion model with a multiple-rate
model for hetero-disperse particle mixtures, Journal of Contaminant Hydrology,
97(1-2): 55-66, 2008.
Basagaoglu H., P. Meakin, S. Succi,
G. R. Redden, T. R. Ginn, Two-dimensional lattice Boltzmann simulation
of colloid migration in rough-walled narrow flow channels, Phys. Rev. E, 77(3), 2008.
Massoudieh A., A. Mathew, T. R.
Ginn, Column and batch reactive transport experiment parameter
estimation using a genetic algorithm, Computers
& Geosciences, 34(1):24-34, 2008.
2007-2006
Sengor, S. S., N. Spycher, T. R. Ginn, R. K. Sani, B. Peyton,
Biogeochemical reactive-diffusive transport of heavy metals in Lake
Coeur d'Alene sediments, Applied
Geochemistry, 22(12): 2569-2594, 2007.
Massoudieh A., A. Mathew, E. Lambertini, K. E. Nelson, T. R. Ginn,
Horizontal gene transfer on surfaces in natural porous media:
Conjugation and kinetics, Vadose
Zone Journal 6(2):306-315, 2007.
Ginn T. R. and F. J. Loge, Dose-structured population dynamics, Mathematical Biosciences, 208(1):
325-343, 2007.
Massoudieh A. and T. R. Ginn, Modeling colloid-facilitated transport of
multi-species contaminants in unsaturated porous media, Journal of Contaminant Hydrology,
92(3-4):162-183, 2007.
Nelson K. E., A. Massoudieh A, T. R. Ginn, E. coli fate and transport
in the Happel sphere-in-cell model, Advances
in Water Resources 30(6-7): 1492-1504, 2007.
Dietrich J. P., F. J. Loge, T. R. Ginn, H. Basagaoglu, Inactivation of
particle-associated microorganisms in wastewater disinfection: Modeling
of ozone and chlorine reactive diffusive transport in polydispersed
suspensions, Water Research,
41(10): 2189-2201, 2007.
Ginn, T. R., Comment on "Groundwater age, life expectancy, and transit
time distributions in advective-dispersive systems: 1. Generalized
reservoir theory," by F. Cornaton and P. Perrochet, Advances in Water Resources, 30(4):
1056-1057, 2007
Ginn T. R., F. J. Loge, T. D. Scheibe, Explaining "noise" as
environmental variations in population dynamics, Computing in Science and Engineering,
9(2): 40-49, 2007.
Collier T.K., M. R. Arkoosh, L.L. Johnson, T. R. Ginn, F. J. Loge,
The influence of chemical contaminants on disease ecology in Columbia
River Chinook salmon,
Marine Environmental Research,
62: S370-S370 Suppl. S, 2006.
Ginn T. R., T. Camesano, T. D. Scheibe, K. E. Nelson, T. P. Clement,
B. D. Wood, Microbial Transport in the Subsurface, Encyclopedia of Hydrological
Sciences, Edited by D. McKnight, John Wiley & Sons
Publishing, New York, NY, 2006.
Seeboonruang, U., and T. R. Ginn, Upscaling heterogeneity in aquifer reactivity via exposure-time concept: forward model, Journal of Contaminant Hydrology, 84 (3-4): 127-154, 2006.
Seeboonruang, U., and T. R. Ginn, Upscaling heterogeneity in aquifer reactivity via exposure-time concept: inverse model, Journal of Contaminant Hydrology, 84 (3-4): 155-177, 2006.
2005-2004
Loge, F. J., M. R. Arkoosh, T. R. Ginn, L. L. Johnson, T. K. Collier, Impact of Environmental Stressors on the Dynamics of Disease Transmission, Environmental Science and Technology, 39 (18): 7329-7336 Sep. 15 2005.
Bendz, D., N. A. Paxeus, T. R. Ginn, F. J. Loge, Occurrence and fate of pharmaceutically active compounds in the environment, a case study: Höje River in Sweden: Journal of Hazardous Materials, 21 April 2005 122: 195-204.
Onsoy, Y., T. H. Harter, T. R. Ginn, W. Horwath, Spatial variability and transport of nitrate in a deep alluvial unsaturated zone, Vadose Zone Journal, 2005 4: 41-54.
Nelson, K. E. and T. R. Ginn, Colloid filtration theory and the Happel sphere-in-cell model revisited with direct numerical simulation, Langmuir, 21(6); 2173-2184, 2005, DOI: 10.1021/la048404i.
Nakajima, H., B. Kutter, T.R. Ginn, M. A. Marino, An experimental study of LNAPL lens formation using a centrifuge, Proc. 16th Intl. Conf. Soil Mechanics and Geotechnical Engineering., 2005, 12-16 September in Osaka, Japan.
Basagaoglu H., T. R. Ginn, and B. J. McCoy, Radial pore diffusion with nonuniform intraparticle porosities, ASCE Journal of Environmental Engineering, 130(10): 1170-1179, 2004, October.
Ginn, T. R., On the application of stochastic approaches in hydrogeology, Stochastic Environmental Research and Risk Assessment, 18(4): 282-284, 2004 August.
Ginn, T. R., F. J. Loge, M. Arkoosh, Population balance
modeling of dose in environmental mixtures, Proceedings of the XVth
International Conference on Computational Methods in Water Resources
(CMWR XV), June 13–17, 2004, Chapel Hill, NC, USA, Volume 1, Edited by
C. T. Miller, M. W. Farthing, W. G. Gray, G. F. Pinder, pages 839-847.
2003-2002
Ruppe, L. M. and T. R. Ginn, Groundwater Quality, in Encyclopedia of Water Science, pages 389-391, July 28, 2003, DOI 10.1081/E-EWS-120010304.
Camesano, T. A., N. L. Abu-Lail, B. S. Arora, L. Abu-Lail, J. M. Pouliot, C. H. Bell, K. E. Nelson, T. R. Ginn, Role of extracellular polysaccharides in bacterial adhesion, Abstracts of Papers of the American Chemical Society, 225: U798-U798 15 Part 1, 2003 March.
Basagaoglu H., E. E. Chung, D. Gandhi, K. M. Scow, B. J. McCoy, T. R. Ginn, Rate parameters for MTBE degradation via a radial diffusion model, ASCE Journal of Environmental Engineering, 129(6):565-570, 2003 Jun.
Ginn, T. R., B. D. Wood, K. Nelson, T. D. Scheibe, E.
M. Murphy, and T. P. Clement, Processes in Microbial Transport in
the Natural Subsurface, Advances in Water Research,25(8-12):1017-1042,
2002.
Basagaoglu, H., McCoy, B.J., Ginn, T. R., Loge, F.J., and Dietrich,
J.P. A Diffusion Limited Sorption Kinetics Model Involving Multiple
Identical or Non-Identical Particles, Advances in Water Resources
25(7):755-772, 2002 .
Dietrich, J. P., H. Basagaoglu, F. J. Loge, T. R. Ginn, Preliminary Assessment of Transport Processes Influencing the Penetration of Chlorine Into Wastewater Particles and the Subsequent Inactivation of Particle-Associated Organisms, Water Research, 37(1):139-149, 2003.
Ginn, T. R., Streamtube-ensemble techniques for nonlinear multicomponent reactive transport in heterogeneous media, in R. Govindaraju (ed.) Stochastic Methods in Subsurface Contaminant Hydrology, ASCE Press, 2003.
Basagaoglu H., E. E. Chung, D. Gandhi, K. M. Scow, B. J. McCoy, T. R. Ginn, Rate parameters for MTBE degradation via a radial diffusion model, Journal of Environmental Engineering., 129(6):565-570, 2003 Jun.
Basagaoglu, H., T. R. Ginn, B. J. McCoy, Formulation of a soil-pesticide transport model based on a compartmental approach, Journal of Contaminant Hydrology, 56: 1-24, 2002.
Basagaoglu, H., T. R. Ginn, B. J. McCoy, Comment on "Model coupling intra particle diffusion/sorption, nonlinear sorption, and biodegradatin process" by HK Karapanagioti, CM Gossard, KA Strevett, RL Kolar, and DA Sabatini, Journal of Contaminant Hydrology, 57: 303-310 2002.
Basagaoglu, H., T. R. Ginn, C. T. Green, and B. J. McCoy, Transport in heterogeneous media: Tracer dynamics in complex flow networks, 48:1122-1132. American Institute of Chemical Engineers Journal , 2002.
Ginn, T. R., A travel-time approach to effects of size exclusion on colloid transport in porous media, 10.1029/2001WR000865, Water Resources Research , 2002.
2001-1999
Loge, F. J., R. W. Emerick, T.
R. Ginn, and J. L. Darby, Association of coliform bacteria
with wastewater particles: Impact of operational parameters of the
activated sludge process, Water Research, 36(N1):41-48, 2001.
Nelson, K. E., and T. R. Ginn, Theoretical investigation of bacterial chemotaxis in porous media, Langmuir, 17:5635-5645, 2001.
Ginn, T. R. Stochastic-convective transport with nonlinear reactions and mixing: Finite streamtube ensemble formulation for multicomponent reaction systems with intra-streamtube dispersion, J. Contaminant Hydrology, 47:1-28, 2001.
Ginn, T. R., E. M. Murphy, A. Chilakapati, U.
Seeboonruang, Stochastic-convective transport with nonlinear reactions
and mixing: Application to intermediate-scale experiments in aerobic
biodegradation in saturated porous media, J. Contaminant Hydrology,
48:121-149, 2001.
Cushman, J. H. and T. R. Ginn, The fractional ADE is a classical mass balance with convoution-fickian flux, Water Resources Research 36(12):3763-3766, 2000.
Basagaoglu, H., T. R. Ginn, B. J. McCoy, M. A. Marino, A linear driving force approximation to a radial diffusive model, Am. Inst. Chem. Eng. J., 46(10):2097-2105, 2000.
Emerick, R. W., F. J. Loge, T. R. Ginn, and J. L. Darby. Modeling the Inactivation of particle-associated coliform bacteria, Water Environment Research 72(4):432-438, 2000.
Murphy, E. M. and T. R. Ginn. Modeling microbial processes in porous media, Hydrogeology J., 8(1):142-158, 2000.
Ginn, T.R. On the distribution of multi-component mixtures over generalized exposure-time in subsurface flow and reactive transport: Theory and formulations for residence-time dependent sorption/desorption with memory, Water Resources Research , 36:2885-2894, 2000.
Ginn, T.R. On the distribution of multi-component mixtures over generalized exposure-time in subsurface flow and reactive transport: Batch and column applications involving residence-time distributions and non-Markovian reaction kinetics, Water Resources Research, 36:2895-2904, 2000.
Ginn, T.R. On the distribution of generalized
exposure-time in groundwater flow and reactive transport: Foundations;
formulations for groundwater age, geochemical heterogeneity, and
biodegradation, Water Resources Research, 35(5):1395-1408,
1999.
LaViolette, R. A., M. E. Watwood, T. R. Ginn, and D. L. Stoner, Spatial disorder and degradation kinetics in intrinsic biodegradation schemes, J. Physical Chem A, 103(23): 4480-4484, 1999.
1998-1995
Murphy, E. M., T. R. Ginn, A. Chilakapati, T. Resch, J. Phillips, T. Wietsma, and C. M. Spadoni. The Influence of Physical Heterogeneity on Microbial Degradation and Distribution in Porous Media, Water Resources Research, 33:1087-1104, 1997.
DeFlaun M.F., C.J. Murray, W. Holben, T. Scheibe, A. Mills, T. R. Ginn, T. Griffin, E. Majer, and J.L. Wilson. Preliminary observations on bacterial transport in a coastal plain aquifer. 20:473-487, FEMS Microbiological Reviews, 1997.
Ginn, T. R., and E. M. Murphy. Generalized chloride mass balance: Forward and inverse solutions for 1-dimensional tracer convection under transient flux, Water Resources Research, 33:2065 2080, 1997.
Murphy, E. M., T. R. Ginn, and J. L. Phillips. Geochemical estimates of recharge in the Pasco Basin: Evaluation of the chloride mass-balance technique, Water Resources Research, 32:2853-2868, 1996.
Simmons, C. S., T. R. Ginn, and B. D. Wood. Stochastic-Convective Transport with Nonlinear Reaction: 1, Mathematical Framework. Water Resources Research, 31:2675-2688, 1995.
Ginn, T. R., C. S. Simmons, and B. D. Wood. Stochastic-Convective Transport with Nonlinear Reaction: 2, Biodegradation with Microbial Growth. Water Resources Research, 31:2689-2700, 1995.
Wood, B.D., T.R. Ginn, and C. N. Dawson. Effects of Microbial Lag in Contaminant Transport and Biodegradation Modeling. Water Resources Research, 31:553-563, 1995.
Chilakapati A, Ginn T, Szecsody J. An analysis of
complex reaction networks in groundwater modeling Water Resources Research, 34 (7):
1767-1780 JUL 1998.
Prior to 1995
Cushman, J.H., X. Hu, and T.R. Ginn. Nonequilibrium Statistical Mechanics of Preasymptotic Dispersion. J. Statistical Physics, 75:859-878, 1994.
Cushman, J.H. and T.R. Ginn. Non-Local Dispersion in Media with Continuously Evolving Scales of Heterogeneity. Transport in Porous Media, 13:123-138, 1993.
Cushman, J.H. and T.R. Ginn. On Dispersion in Fractal Porous Media. Water Resources Research, 29:3513-3515, 1993.
Ginn, T. R., and J. H. Cushman. A Continuous - Time Inverse Operator for Groundwater and Contaminant Transport Modeling: II, Model Identifiability. Water Resources Research, 28:539-549, 1992.
Ginn, T. R., J. H. Cushman, and M. H. Houck. A Continuous - Time Inverse Operator for Groundwater and Contaminant Transport Modeling I, Deterministic Case, Water Resources Research, 26:241-252, 1990.
Ginn, T. R., and J. H. Cushman, Inverse methods for subsurface flow- a critical review of stochastic techniques, Stoch. Hydrology and Hydraulics 4(1):1-26, 1990.
Ginn, T. R., and M. H. Houck. 1989. Calibration of an Objective Function for Optimization of Real-Time Reservoir Operations. Water Resources Research, 25:591-604, 1989.
Cosby, B. J., R. B. Clapp, G. M. Hornberger, and T. R. Ginn. A Statistical Exploration into the Relationships of Soil Moisture Characteristics to the Physical Properties of Soils. Water Resources Research, 20:682-690, 1984.