Subsurface Hydrology

Publications in Peer-Reviewed Journals

• R.L. Schwede & O.A. Cirpka: Use of steady-state concentration measurements in geostatistical inversion. Advances Water Resour. (submitted), 2008.
• C. Mikutta, J.G. Wiederhold, O.A. Cirpka, T.B. Hofstetter, B. Bourdon, U. von Gunten: Iron isotope fractionation and atom exchange during sorption of ferrous iron to mineral surfaces. Geochim. Cosmochim. Acta (submitted), 2008.
• A. Neumann, T.B. Hofstetter, M. Lüssi, O.A. Cirpka, S. Petit, R.P. Schwarzenbach: Assessing the reactivity of structural Fe(II) in smectites from the reduction kinetics of nitroaromatic contaminants. Environ. Sci. Technol. (in press), 2008.
• D. Pollock & O.A. Cirpka: Temporal moments in geoelectrical monitoring of salt-tracer experiments. Water Resour. Res. (in press), 2008.
• J. Luo & O.A. Cirpka: Travel-time based descriptions of transport and mixing in heterogeneous domains. Water Resour. Res. 44(9): W09407, doi:10.1029/2007WR006035, 2008.
• R.L. Schwede, O.A. Cirpka, W. Nowak, I. Neuweiler: Impact of sampling volume on the probability density function of steady-state concentration. Water Resour. Res. (in press), 2008.
• W. Nowak, R.L. Schwede, O.A. Cirpka & I. Neuweiler: Probability density functions of hydraulic head and velocity in three-dimensional heterogeneous porous media. Water Resour. Res. 44(8): W08452,  doi:10.1029/2007WR006383, 2008.
• O.A. Cirpka, R.L. Schwede, J. Luo, M. Dentz: Concentration statistics for mixing-controlled reactive transportin random heterogeneous media. J. Contam. Hydrol. 98(1-2): 61-74, 2008.
• S. Klump, O.A. Cirpka, H. Surbeck, R. Kipfer: Experimental and numerical studies on excess-air formation in quasi-saturated porous media. Water Resour. Res. 44(5): W05402, doi:10.1029/2007WR006280, 2008.
• R.A. Payn, M.N. Gooseff, D.A. Benson, O.A. Cirpka, J.P. Zarnetske, W.B. Bowden, J.P. McNamara & J.H. Bradford: Comparison of instantaneous and constant-rate stream tracer experiments through non-parametric analysis of residence time distributions. Water Resour. Res. 44(6): W06404, doi: 10.1029/2007WR006274, 2008.
• W. Li, A. Englert, O.A. Cirpka & H. Vereecken: Three-dimensional geostatistical inversion of flowmeter and pumping-test data. Ground Water 46(2): 193-201, 2008.
• J. Luo, O.A. Cirpka, M. Dentz, J. Carrera: Temporal moments for transport with mass transfer described by an arbitrary memory function in heterogeneous media. Water Resour. Res. 44(1): W01502, doi:10.1029/2007WR006262, 2008.
• J. Luo, M. Dentz, O.A. Cirpka & P.K. Kitanidis: Breakthrough curve tailing in a dipole flow field. Water Resour. Res. 43(9), W09403, doi:10.1029/2006WR005600, 2007.
• J. Luo, F.-A. Weber, O.A. Cirpka, W.-M. Wu, J. Carley, J. Nyman, P. Jardine, C.S. Criddle & P.K. Kitanidis: Modeling in-situ U(VI) bioreduction by sulfate-reducing bacteria in the presence of nitrate. J. Contam. Hydrol. 92(1-2): 129-148, 2007.
• W. Li, A. Englert, O.A. Cirpka, J. Vanderborght & H. Vereecken: 2-D characterization of hydraulic heterogeneity by multiple pumping tests. Water Resour. Res. 43(4):
  W04433, doi:10.1029/2006WR005333, 2007.
• O.A. Cirpka, M.N. Fienen, M. Hofer, E. Hoehn, A. Tessarini, R. Kipfer & P.K. Kitanidis: Analyzing bank filtration by deconvoluting times series of electric conductivity, Ground Water 45(3): 318-328, 2007.
• O.A. Cirpka & A.J. Valocchi: Two-dimensional concentration distribution for mixing-controlled bio-reactive transport in steady state. Advances Water Resour. 30(6-7): 1668-1679, doi:10.1016/j.advwatres.2006.05.022, 2007.
• C.J. Werth, O.A. Cirpka & P. Grathwohl: Enhanced mixing and reaction through flow focusing in heterogeneous porous media. Water Resour. Res. 42(12): W12414, doi:10.1029/2005WR004511, 2006.
• E. Hoehn & O.A. Cirpka: Assessing hyporheic zone dynamics in two alluvial flood plains of the Southern Alps using water temperature and tracers. Hydrol. Earth Syst. Sci. 10: 553-563, 2006.
• W. Nowak & O.A. Cirpka: Geostatistical inference of hydraulic conductivity and dispersivities from hydraulic heads and tracer data. Water Resour. Res. 42(8): W08416, doi: 10.1029/2005WR004832, 2006.
• G.H. de Rooij, O.A. Cirpka, F. Stagnitti, S.H. Vuurens & J. Boll: Quantifying minimum monolith size and solute dilution from multi-compartment percolation sampler data. Vadose Zone J. 5(4): 1086-1092, doi: 10.2136/vzj2005.0101, 2006.
• I. Benekos, O.A. Cirpka & P.K. Kitanidis: Experimental determination of transverse dispersivity in a helix and a cochlea. Water Resour. Res. 42 (7): W07406, doi: 10.1029/2005WR004712, 2006.
• J. Luo, O.A. Cirpka & P.K. Kitanidis. Temporal-moment matching for truncated breakthrough curves for step or step-pulse injection. Advances Water Resour. 29(9): 1306-1313, 2006.
• W.-M. Wu, J. Carley, M. Fienen, T. Melhorn, K. Lowe, J. Nyman, J. Luo, M.E. Gentile, R. Rajan, D. Wagner, R.F. Hickey, B. Gu, D. Watson, O.A. Cirpka, P.K. Kitanidis, P.M. Jardine & C.S. Criddle: Pilot-scale in situ bioremediation of uranium in a highly contaminated aquifer. 1. Conditioning of a treatment zone. Environ. Sci. Technol. 40(12): 3978-3985, doi: 10.1021/es051954y, 2006.
• W.-M. Wu, J. Carley, T. Gentry, M.A. Ginder-Vogel, M. Fienen, T. Melhorn, H. Yan, S. Caroll, M.N. Pace, J. Nyman, J. Luo, M.E. Gentile, M.W. Fields, R.F. Hickey, B. Gu, D. Watson, O.A. Cirpka, J. Zhou, S. Fendorf, P.K. Kitanidis, P.M. Jardine & C.S. Criddle: Pilot-scale in situ bioremediation of uranium in a highly contaminated aquifer. 2. Reduction of U(VI) and geochemical control of U(VI) bioavailability. Environ. Sci. Technol. 40(12): 3986 - 3995, doi: 10.1021/es051960u, 2006.
• W. Li & O.A. Cirpka: Efficient geostatistical inverse methods for structured and unstructured grids. Water Resour. Res. 42(6): W06402, doi:10.1029/2005WR004668, 2006.
• O.A. Cirpka, Å. Olsson, Q. Ju, M.A. Rahman & P. Grathwohl: Determination of transverse dispersion coefficients from reactive plume lengths. Ground Water 44(2): 212-221, 2006.
• J. Luo, W-M. Wu, M.N. Fienen, P.M. Jardine, T.L. Mehlhorn, D.B. Watson, O.A. Cirpka, C.S. Criddle & P.K. Kitanidis: A nested-cell approach for in situ remediation. Ground Water 44(2): 266-274, 2006
• G. Janssen, O.A. Cirpka & S.E.A.T.M. van der Zee: Stochastic analysis of nonlinear biodegradation in regimes controlled by both chromatographic and dispersive mixing. Water Resour. Res. 42(1): W01417, doi:10.1029/2005WR004042, 2006.
• S. Klump, R. Kipfer, O.A. Cirpka, C.F. Harvey, M.S. Brennwald, K.N. Ashfaque, A.B.M. Badruzzaman, S.J. Hug & D. Imboden. Groundwater dynamics and arsenic mobilization in Bangladesh assessed using noble gases and tritium. Environ. Sci. Technol. 40(1): 243-250, doi:10.1021/es051284w, 2006.
• J. Luo, O.A. Cirpka, M.N. Fienen, W. Wu, T.L. Mehlhorn, J. Carley, P.M. Jardine, C.S. Criddle & P.K. Kitanidis. A parametric transfer function methodology for analyzing reactive transport in nonuniform flow. J. Contam. Hydrol. 83(1-2): 27-41, 2006.
• J. Luo, O.A. Cirpka, W. Wu, M.N. Fienen, P.M. Jardine, T.L. Mehlhorn, D.B. Watson, C.S. Criddle, P.K. Kitanidis, Mass-transfer limitation for nitrate removal in a uranium-contaminated aquifer at Oak Ridge, TN. Environ. Sci. Technol. 39(21): 8453-8459, doi:10.1021/es050195g, 2005.
• M.A. Rahman, S.C. Jose, W. Nowak & O.A. Cirpka: Experiments on Vertical Transverse Mixing in a Large-Scale Heterogeneous Model Aquifer. J. Contam. Hydrol. 80(3-4): 130-148, 2005.
• N. Teutsch, U. von Gunten, D. Porcelli, O.A. Cirpka & A.N. Halliday: Adsorption as a cause for iron isotope fractionation in reduced groundwater, Geochim. Cosmochim. Acta 69(17): 4175-4185, doi:10.1016/j.gca.2005.04.007, 2005.
• W. Li, W. Nowak & O.A. Cirpka: Geostatistical inverse modeling of transient pumping tests using temporal moments of drawdown. Water Resour. Res. 41(8): W08403, doi:10.1029/2004WR003874, 2005.
• O.A. Cirpka: Effects of sorption on transverse mixing in transient flows.J. Contam. Hydrol. 78(3): 207-229, 2005.
• I. Neuweiler & O.A. Cirpka: Homogenization of Richards equation in permeability fields with different connectivities. Water Resour. Res. 41(2): W02009, doi:10.1029/2004WR003329, 2005.
• S.C. Jose, M.A. Rahman & O.A. Cirpka: Large-scale sandbox experiment on longitudinal effective dispersion in heterogeneous porous media. Water Resour. Res. 40(12): W12415, doi:10.1029/2004WR003363, 2004. (379KB)
• O.A. Cirpka, C.M. Bürger, W. Nowak & M. Finkel: Uncertainty and data worth analysis for the hydraulic design of funnel-and-gate systems in heterogeneous aquifers. Water Resour. Res. 40(11): W11502, doi:10.1029/2004WR003352, 2004.(601KB)
• W. Nowak & O.A. Cirpka: A modified Levenberg-Marquardt algorithm for quasi-linear geostatistical inversing. Adv. Water Resour. 27(7): 737-750, 2004.
• S.C. Jose & O.A. Cirpka: Measurement of mixing-controlled reactive transport in homogeneous porous media and its prediction from conservative tracer test data. Environ. Sci. Technol. 38(7):2089-2096, 2004.
• O.A. Cirpka & W. Nowak: First-order variance of travel time in non-stationary formations. Water Resour. Res. 40(3):W03507, doi:10.1029/2003WR002851, 2004. (887KB)
• O.A. Cirpka & S. Attinger: Effective dispersion in heterogeneous media under random transient flow conditions. Water Resour. Res. 39(9):1257, doi:10.1029/2002WR001931, 2003. (370KB)
• O.A. Cirpka & W. Nowak: Dispersion on kriged hydraulic conductivity fields. Water Resour. Res.39(2):1027,doi:10.1029/2001WR000598, 2003. (1.23MB)
• W. Nowak, S. Tenkleve, O.A. Cirpka: Efficient computation of linearized cross-covariance and auto-covariance matrices of interdependent quantities. Math. Geol. 35(1):53-66, 2003.
• O.A. Cirpka: Choice of dispersion coefficients in reactive transport calculations on smoothed fields. J. Contam. Hydrol. 58(3-4):261-282, 2002.
• O.A. Cirpka & P.K. Kitanidis: Numerical evaluation of solute dispersion and dilution in unsaturated heterogeneous media. Water Resour. Res. 38(11):1220,doi:10.1029/2001WR001262, 2002. (1.32MB)
• O.A. Cirpka & P.K. Kitanidis: Travel-time based model of bioremediation using circulation wells. Ground Water 39(3):422-432, 2001.
• O.A. Cirpka & P.K. Kitanidis: Transport of volatile compounds in porous media in the presence of a trapped gas phase. J. Contam. Hydrol. 49(3-4):263-285, 2001.
• O.A. Cirpka & P.K. Kitanidis: Theoretical basis for the measurement of local transverse dispersion in isotropic porous media. Water Resour. Res. 37(2):243-252, 2001. (262KB)
• O.A. Cirpka & P.K. Kitanidis: Sensitivities of temporal moments calculated by the adjoint-state method and joint inversing of head and tracer data. Adv. Water Resour. 24(1):89-103, 2000.
• O.A. Cirpka & P.K. Kitanidis: Characterization of mixing and dilution in heterogeneous aquifers by means of local temporal moments. Water Resour. Res. 36(5): 1221-1236, 2000. (2.16MB)
• O.A. Cirpka & P.K. Kitanidis: An advective-dispersive streamtube approach for the transfer of conservative tracer data to reactive transport. Water Resour. Res. 36(5): 1209-1220, 2000. (519KB)
• O.A. Cirpka & P.K. Kitanidis: Impact of biomass-decay terms on the simulation of pulsed bioremediation. Ground Water 38(2): 254-263, 2000.
• O.A. Cirpka, C. Windfuhr, G. Bisch, S. Granzow, H. Scholz-Muramatsu & H. Kobus:  Microbial reductive dechlorination in large-scale sandbox model.  J. Environ. Eng. ASCE 125(9): 861-870, 1999.
• O.A. Cirpka, E.O. Frind & R. Helmig:  Numerical simulation of biodegradation controlled by transverse mixing.  J. Contam. Hydrol. 40(2): 159-182, 1999.
• O.A. Cirpka, R. Helmig & E.O. Frind:  Numerical methods for reactive transport on rectangular and streamline-oriented grids. Adv. Water Resour.  22(7): 711-728, 1999.
• O.A. Cirpka, R. Helmig & E.O. Frind:  Streamline-oriented grid-generation for transport modelling in two-dimensional domains including wells. Adv. Water Resour.  22(7): 697-710, 1999.
• O. Cirpka, P. Reichert, O. Wanner, S.R. Müller & R.P. Schwarzenbach: Gas exchange at river cascades: Field experiments and model calculations. Environ. Sci. Tech. 27(10):2086-2097, 1993.

Communications & Book Contributions

• O. Cirpka: Numerische Methoden zur Simulation des reaktiven Mehrkomponententransports im Grundwasser. Mitteilungen des Instituts für Wasserbau der Universität Stuttgart 95, zugl. Dissertation Fakultät für Bauingenieurwesen der Universität Stuttgart, Eigenverlag des Instituts für Wasserbau der Unversität, Pfaffenwaldring 61, Stuttgart, 1997. (9.47MB)

• O. Cirpka: Strömungs- und Transporteigenschaften des Untergrundes und ihre Bedeutung für den mikrobiellen Schadstoffabbau.  In: C. Knorr & T.v.Schell (eds.): Mikrobieller Schadstoffabbau.  Vieweg Verlag, Braunschweig. pp 34-78, 1997.

• O. Cirpka: CONTRACT: A Numerical Tool for Contaminant Transport and Chemical Transformations - Theory and Program Documentation. Mitteilungen des Instituts für Wasserbau der Universität Stuttgart 87, Eigenverlag des Instituts für Wasserbau der Unversität, Pfaffenwaldring 61, Stuttgart, 1996. (2.54MB)

• H. Kobus, O. Cirpka, B. Barczewski & H.-P. Koschitzky: Versuchseinrichtung zur Grundwasser- und Altlastensanierung VEGAS, Konzeption und Programmrahmen. Mitteilungen des Instituts für Wasserbau der Universität Stuttgart 82. Eigenverlag des Instituts für Wasserbau der Universität Stuttgart, Pfaffenwaldring 61, Stuttgart, 1993. 

Conference Proceedings

• O.A. Cirpka, S. Kumpf: Concentration fronts in the dissolution of entrapped gas, Geochim. Cosmoschim. Acta 72(12): A164, Suppl. 1, 2008.
• S. Kumpf, O.A. Cirpka, R. Kipfer: Excess air as a proxy for hydrostatic pressure? Geochim. Cosmoschim. Acta 72(12): A483, Suppl. 1, 2008.
• C. Mikutta, J.G. Wiederhold, T.B. Hofstetter, O.A. Cirpka, B. Bourdon, U. von Gunten: Iron isotope fractionation during Fe(II) sorption to mineral surfaces, Geochim. Cosmoschim. Acta 72(12): A627, Suppl. 1, 2008.
• D. Pollock & O.A. Cirpka: Temporal Moments in Geophysical Monitoring of Salt-Tracer Experiments, Computational methods in water resources XVII, July 6-10, San Francisco, 2008.
• W. Kull & O.A. Cirpka: Determination of the full permeability tensor, Computational methods in water resources XVII, July 6-10, San Francisco, 2008.
• J. Luo & O.A. Cirpka: Mixing-controlled reactive transport on travel times in heterogeneous media, Eos Trans. AGU, 89(23), Jt. Assem. Suppl., Abstract H54B-03.
• O.A. Cirpka & W. Li: Geostatistical inverse modeling: success stories and remaining challenges EGU General Assembly 2008, Geophys. Res. Abstr. 10: 02153, 2008.
• O.A. Cirpka & R.L. Schwede: Statistical distributions of concentration in heterogeneous domains: why the mean and variance are not enough, EGU General Assembly 2008, Geophys. Res. Abstr. 10: 01290, 2008.
• W. Kull & O.A. Cirpka: Determination of the full permeability tensor, EGU General Assembly 2008, Geophys. Res. Abstr. 10: 02514, 2008.
• R.L. Schwede, W. Nowak & O.A. Cirpka: Impact of sampling volume on the probability density func-tion of steady-state concentration, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract H14C-02, 2007.
• G.H. de Rooij, F.A. Hogervorst, E. Bloem, F. Stagnitti & O.A. Cirpka: Water Flow and Solute Trans-port in Heterogeneous Soils: A new multicompartment sampler and a theoretical toolkit for data analysis, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract H23G-1692, 2007.
• W. Nowak, R.L. Schwede, O.A. Cirpka & I. Neuweiler: Probability density functions of hydraulic head and velocity in three-dimensional heterogeneous porous media, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract H23G-1691, 2007.
• L. Yang, I. Neuweiler, A. Färber & O.A. Cirpka: Solute mixing in thermally induced buoyancy flow, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract H23D-1615, 2007.
• O.A. Cirpka: Mixing-controlled reactive transport: Where do we stand? Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract H32D-01, 2007.
• D. Pollock & O.A. Cirpka: Temporal moments in hydrogeophysics, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract H41H-07, 2007.
• W. Li, A. Englert, H. Vereecken & O.A. Cirpka: Inference of 3-D hydraulic conductivity from flow-meter and pumping-test data, Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract H11I-03, 2007.
• S. Klump, O.A. Cirpka & R. Kipfer: Unfractionated excess air: The result of incomplete dissolution of entrapped air? Geochim. Cosmoschim. Acta 71 (15): A496 Suppl. S, 2007.
• R. Schwede & O.A. Cirpka: Probability density functions of solute concentration in heterogeneous aquifers, EGU General Assembly 2007, Geophys. Res. Abstr. 9: 05995, 2007.
• W. Li, O.A. Cirpka & A. Englert: Geostatistical identification of spatially distributed parameter fields by hydraulic tomography, EGU General Assembly 2007, Geophys. Res. Abstr. 9: 04355, 2007.
• J. Luo, M. Fienen, O.A. Cirpka & P.K. Kitanidis: Advective travel-time distribution and a local-mixing streamtube approach, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract H13F-07, 2006.
• O.A. Cirpka: Nonparametric, nonnegative deconvolution of large time series, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract H41I-04, 2006.
• O.A. Cirpka, W. Li & A. Englert: Hydraulic tomography and the curse of storativity, Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract H42A-02, 2006.
• O.A. Cirpka, E. Hoehn & M. Hofer: Multi-step strategy of analyzing time series collected at infiltrating rivers, EGU General Assembly 2006, Geophys. Res. Abstr. 8: 05013, 2006.
• S. Klump, O. A. Cirpka, M. S. Brennwald, S. J. Hug & R. Kipfer: Is arsenic contamination of groundwater in Bangladesh the result of groundwater pumping? Environmental tracers provide an answer. EGU General Assembly 2006, Geophys. Res. Abstr. 8: 04878, 2006.
• W. Li & O.A. Cirpka, Efficient method for geostatistical inverse modeling on unstructured grids, Eos Trans. AGU 86(52), Fall Meet. Suppl., Abstract H13D-1351, 2005.
• O.A. Cirpka, Transverse dispersion: small, but significant, and difficult to determine, Eos Trans. AGU 86(52), Fall Meet. Suppl., Abstract H51F-0421, 2005.
• J. Luo, F.-A. Weber, O.A. Cirpka, W. Wu. J.L. Nyman, J.M. Carley, P.M. Jardine, C.S. Criddle & P.K. Kitanidis: Geostatistical inversion of conductivity and dispersivities for hydraulic heads and tracer data from a sandbox experiment, Eos Trans. AGU 86(52), Fall Meet. Suppl., Abstract H21G-03, 2005.
• W. Nowak & O.A. Cirpka: Modeling in-situ uranium(VI) bioreduction at Oak Ridge, TN, Eos Trans. AGU 86(52), Fall Meet. Suppl., Abstract H11D-1299, 2005.
• W. Li, W. Nowak & O.A. Cirpka: Geostatistical inversing of transient pumping tests using temporal moments of drawdown, EGU General Assembly 2005, Geophys. Res. Abstr. 7: 02215, 2005.
• W. Kull & O.A. Cirpka: Determination of the full permeability tensor, EGU General Assembly 2005, Geophys. Res. Abstr. 7: 07868, 2005.
• I. Neuweiler & O.A. Cirpka: Impact of connectivity properties of soil on effective parameters for Richard’s equation, EGU General Assembly 2005, Geophys. Res. Abstr. 7: 04766, 2005.
• O.A. Cirpka, W. Nowak & C.M. Bürger: Linearized uncertainty propagation, geostatistical inversing, and data-worth analysis in heterogeneous aquifers, EGU General Assembly 2005, Geophys. Res. Abstr. 7: 01539, 2005.
• O.A. Cirpka, W. Nowak, S.C. Jose & M.A. Rahman: Effective dispersion in heterogeneous media: comparison between experiments, inverse modeling, and first-order theory, Eos Trans. AGU 85(47), Fall Meet. Suppl., Abstract H13H-06, 2004.
• O.A. Cirpka: Solute mixing in heterogeneous aquifers. 15. International Conference on Computational Methods in Water Resources, Editor: Miller, C.T., Farthing, W.F., Gray, W.G. & G.F. Pinder, Elsevier Science Publishers B.V., Chapel Hill, North Carolina, USA, 6/2004. Vol. 1, pp 259-266.
• I. Neuweiler, O.A. Cirpka, H. Eichel & R. Helmig: Infiltration of DNAPL into heterogeneous water-saturated soil with different connectivity properties. 15. International Conference on Computational Methods in Water Resources, Editor: Miller, C.T., Farthing, W.F., Gray, W.G. & G.F. Pinder, Elsevier Science Publishers B.V., Chapel Hill, North Carolina, USA, 6/2004. Vol. 1, pp 313-324.
• O.A. Cirpka & W. Nowak: First-order variance of solute travel time in non-stationary media, Eos Trans. AGU 84(46), Fall Meet. Suppl., Abstract H11G-0920, 2003.
• S.C. Jose & O.A. Cirpka: Column Studies on Reactive Mixing. In: Geophys. Res. Abstr., EGS-AGU-EUG Joint Assembly, European Geophysical Society, Nice, France, 4/2003. No.: 08975, Vol.5
• A. Rahman, S.C. Jose & O.A. Cirpka: Large-scale Sandbox Experiments on Dispersion and Mixing. Geophysical Research Abstracts, EGS-AGU-EUG Joint Assembly, European Geophysical Society, Nice, France, 4/2003. No.: 05935, Vol. 5.
• W. Nowak & O.A. Cirpka: Efficient computational methods for iterative cokriging. In: Proceedings of the World Water and Environmental Resources (WWER) Congress 2003, June 23-26, 2003, Philadelphia, ASCE.
• I. Benekos, P.K. Kitanidis, O.A. Cirpka & A.M. Rahman: Determination of pore-scale transverse dispersivity: analysis of data from helical column experiments, Eos Trans. AGU 83(47), Fall Meet. Suppl., Abstract H11E-0899, 2002.
• O.A. Cirpka: Choice of parameters for dispersive mixing in heterogeneous domains. In: S.M. Hassanizadeh, R.J. Schotting, W.G. Gray & G.F. Pinder (eds.): Computational methods in water resources XIV, Delft, June 23-28, 2002, Elsevier, Amsterdam, pp 695-702, 2002.
• M. A. Rahman, I. Benekos, O.A. Cirpka, P.K. Kitanidis: Determination of Pore-Scale Transverse Dispersivity by Taylor-Aris Dispersion in a Helical Soil Column. In: A.N. Findikakis (ed.): Bridging the Gap between Measurement and Modeling in Heterogeneous Media, International Groundwater Symposium organized by IAHR, March 25-28, 2002 in Berkeley, CA, IAHR, Madrid, pp 494-498, 2002.
• O.A. Cirpka & W. Nowak. Influence of Geostatistical Interpolation of Log-Hydraulic Conductivity on Dispersion and Mixing. In: A.N. Findikakis (ed.): Bridging the Gap between Measurement and Modeling in Heterogeneous Media, International Groundwater Symposium organized by IAHR, March 25-28, 2002 in Berkeley, CA, IAHR, Madrid, pp 42-47, 2002.
• I.D. Benekos, P.K. Kitanidis, A.M. Rahman & O.A. Cirpka: Experimental and mathematical studies of pore-scale transverse dispersion in a helical soil column, Eos Trans. AGU 82(47), Fall Meet. Suppl., Abstract H12B-0274, 2001.
• O.A. Cirpka & P.K. Kitanidis: Travel-time based model of bioremediation using circulation wells. Groundwater Quality 2001, June 18-21, 2001 in Sheffield, GB.
• O.A. Cirpka & P.K. Kitanidis: Transfer of tracer data to mixing-controlled reactive transport. In: F. Stauffer, W. Kinzelbach, K. Kovar & E. Hoehn (eds.): Calibration and Reliability in Groundwater Modelling: Coping with Uncertainty. IAHS publication no. 265, IAHS press, Wallingford, UK, pp 461-467, 2000.
• O.A. Cirpka & P.K. Kitanidis: Geostatistical inversing of temporal moments in groundwater transport. H11C-11. 1999 AGU Fall Meeting, December 13-17, 1999, San Francisco.
• O.A. Cirpka: Numerical methods for the simulation of biodegradation controlled by transverse mixing. H32J-01. 1998 AGU Fall Meeting, December 6-10, 1998, San Francisco.
• O.A. Cirpka & G. Bisch: Microbial reductive dechlorination of PCE in a quasi two-dimensional sandbox model. In: G.B. Wickramanayake & R.E. Hinchee (eds.): Bioremediation and phytoremediation: chlorinated and recalcitrant compounds. Battelle Press, Columbus, OH. pp 129-134, 1998.
• O. Cirpka: Numerical simulation of reductive dechlorination of tetrachloroethene in a sandbox model. In: Proceedings of the XXVII IAHR Congress, 10-15 August 1997, San Francisco, 1997.
• O. Cirpka & R. Helmig: Comparison of approaches for coupling of chemistry to transport in groundwater systems. In: R. Helmig, W. Jäger, W. Kinzelbach, P. Knabner & G. Wittum (eds.): Notes on Numerical Fluid Dynamics 59. Vieweg Verlag, Braunschweig. pp 102-120, 1997.
• O. Cirpka: Influence of spatial variability of hydraulic parameters on aerobic biotransformations in groundwater systems. In: HYDRA 2000: Proceedings of the XXVIth congress of the IAHR, London 11-15 September 1995. Vol. 5: John F. Kennedy student paper competition. Thomas Telford, London. pp 31-36, 1995.
• O. Cirpka & R. Helmig: Numerical simulation of contaminant transport and biodegradation in porous and fractured-porous media. In: A. Peters, G. Wittum, B. Herrling, U. Meissner, C.A. Brebbia, W.G. Gray & G.F. Pinder (eds.): Computational methods in water resources X. Kluwer Academic Publishers, Dordrecht. pp 605-612, 1994.

Class Notes

• O.A. Cirpka: Transport and Mixing in Natural Waters. Part II: Rivers and Groundwater. ETH Zürich, Winteresemester 2006/2007.

• O.A. Cirpka: Environmental Fluid Dynamics II. Rivers and Groundwater. ETH Zürich, Sommersemester 2006.

• O.A. Cirpka: Stochastic Methods in Subsurface Hydrology. Universität Stuttgart, Sommersemester 2006.

• O.A. Cirpka: Ausbreitungs- und Transportvorgänge in Strömungen 1: Strömungen in natürlichen Hydrosystemen (In English: Environmental Fluid Mechanics 1). Universität Stuttgart, Sommersemester 2003.

• O.A. Cirpka: Ausbreitungs- und Transportvorgänge in Strömungen 2 (In English: Environmental Fluid Mechanics 2). Universität Stuttgart, Wintersemester 2002/2003.

• O.A. Cirpka: Parameter Estimation and Inverse Modeling. Universität Stuttgart, Wintersemester 2001/2002. (843KB)

• O.A. Cirpka: Macrotransport Theory. Universität Stuttgart, Wintersemester 2000/2001. (1.87MB)

• O.A. Cirpka: Numerical methods for groundwater flow and transport. Stanford University, Fall Quarter 1999. (1.96MB)

• O.A. Cirpka: Dispersion, dilution and reactive mixing. TU Braunschweig, June 1999. (5.20MB)

• O.A. Cirpka: Numerische Modellierung von Strömungs- und Transportprozessen in Oberflächengewässern. Universität Stuttgart, Sommersemester 1998. (1.01MB)

Technical Reports

• H. Kobus, O. Cirpka & G. Bisch: Untersuchungen zu Strömungs- und Transportvorgängen in einem heterogenen anaeroben Modellaquifer (Abschlussbericht). Wissenschaftlicher Bericht Nr. 98/17 (HG 260). Institut für Wasserbau der Unversität Stuttgart, Pfaffenwaldring 61, Stuttgart, 1998.

• O. Cirpka: Numerical simulation of streamline-oriented transport: flow calculation, grid generation and transport calculation. Wissenschaftlicher Bericht Nr. 96/20 (HG 236). Institut für Wasserbau der Unversität Stuttgart, Pfaffenwaldring 61, Stuttgart, 1996.

• H. Kobus, O. Cirpka & G. Bisch: Untersuchungen zu Strömungs- und Transportvorgängen in einem heterogenen anaeroben Modellaquifer. Wissenschaftlicher Bericht Nr. 96/2 (HG 225). Institut für Wasserbau der Unversität Stuttgart, Pfaffenwaldring 61, Stuttgart, 1996.