• 12760 Citations
  • 56 h-Index
1968 …2018
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Research Output 1968 2018

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Article
2000

Wetting front instability and fingering in random permeability fields

Chen, G., Neuman, S. P. & Hills, R. G., 2000, In : Special Paper of the Geological Society of America. 348, p. 53-59 7 p.

Research output: Contribution to journalArticle

fingering
wetting front
permeability
Richards equation
soil
1999
50 Citations (Scopus)

Anisotropy, lacunarity, and upscaled conductivity and its autocovariance in multiscale random fields with truncated power variograms

Di Federico, V., Neuman, S. P. & Tartakovsky, D. M., 1999, In : Water Resources Research. 35, 10, p. 2891-2908 18 p.

Research output: Contribution to journalArticle

Hydraulic conductivity
variogram
hydraulic conductivity
Anisotropy
anisotropy
54 Citations (Scopus)

Conditional stochastic averaging of steady state unsaturated flow by means of Kirchhoff transformation

Tartakovsky, D. M., Neuman, S. P. & Lu, Z., Mar 1999, In : Water Resources Research. 35, 3, p. 731-745 15 p.

Research output: Contribution to journalArticle

unsaturated flow
gravity
Soils
Gravitation
Hydraulic conductivity
24 Citations (Scopus)
transient flow
Boundary conditions
boundary condition
143 Citations (Scopus)
Hydraulic conductivity
Fluxes
uncertainty
Integrodifferential equations
Stochastic models
88 Citations (Scopus)
Hydraulic conductivity
hydraulic conductivity
conditioning
Groundwater flow
Error analysis
1998
230 Citations (Scopus)

A comparison of seven geostatistically based inverse approaches to estimate transmissivities for modeling advective transport by groundwater flow

Zimmerman, D. A., De Marsily, G., Gotway, C. A., Marietta, M. G., Axness, C. L., Beauheim, R. L., Bras, R. L., Carrera, J., Dagan, G., Davies, P. B., Gallegos, D. P., Galli, A., Gómez-Hernández, J., Grindrod, P., Gutjahr, A. L., Kitanidis, P. K., Lavenue, A. M., McLaughlin, D., Neuman, S. P., RamaRao, B. S. & 2 others, Ravenne, C. & Rubin, Y., Jun 1998, In : Water Resources Research. 34, 6, p. 1373-1413 41 p.

Research output: Contribution to journalArticle

Groundwater flow
transmissivity
groundwater flow
Travel time
Aquifers
Anisotropic media
Water resources
water resources
39 Citations (Scopus)

Flow in multiscale log conductivity fields with truncated power variograms

Di Federico, V. & Neuman, S. P., May 1998, In : Water Resources Research. 34, 5, p. 975-987 13 p.

Research output: Contribution to journalArticle

Hydraulic conductivity
variogram
hydraulic conductivity
conductivity
hydraulic head

Reply

Neuman, S. P. & Di Federico, V., Nov 1 1998, In : Water Resources Research. 34, 11, p. 3209-3210 2 p.

Research output: Contribution to journalArticle

53 Citations (Scopus)
Hydraulic conductivity
hydraulic conductivity
Fluxes
Convolution
space and time
86 Citations (Scopus)

Transient flow in bounded randomly heterogeneous domains 1. Exact conditional moment equations and recursive approximations

Tartakovsky, D. M. & Neuman, S. P., Jan 1998, In : Water Resources Research. 34, 1, p. 1-12 12 p.

Research output: Contribution to journalArticle

transient flow
hydraulic conductivity
Hydraulic conductivity
Fluxes
heterogeneous medium
26 Citations (Scopus)
transient flow
Hydraulic conductivity
hydraulic conductivity
Darcy law
Tensors
53 Citations (Scopus)

Transport in multiscale log conductivity fields with truncated power variograms

Di Federico, V. & Neuman, S. P., May 1998, In : Water Resources Research. 34, 5, p. 963-973 11 p.

Research output: Contribution to journalArticle

dispersivity
variogram
travel
conductivity
Groundwater flow
1997
porous media
water resources
96 Citations (Scopus)

Scaling of random fields by means of truncated power variograms and associated spectra

Di Federico, V. & Neuman, S. P., May 1997, In : Water Resources Research. 33, 5, p. 1075-1085 11 p.

Research output: Contribution to journalArticle

variogram
Hydraulic conductivity
Power spectral density
Cutoff frequency
Hydraulics
24 Citations (Scopus)

Second-order expressions for velocity moments in two- and three-dimensional statistically anisotropic media

Hsu, K. C. & Neuman, S. P., Apr 1997, In : Water Resources Research. 33, 4, p. 625-637 13 p.

Research output: Contribution to journalArticle

Anisotropic media
anisotropic medium
Anisotropy
anisotropy
Hydraulic conductivity
1996
60 Citations (Scopus)

Effective hydraulic conductivity of bounded, strongly heterogeneous porous media

Paleologos, E. K., Neuman, S. P. & Tartakovsky, D., May 1996, In : Water Resources Research. 32, 5, p. 1333-1341 9 p.

Research output: Contribution to journalArticle

Hydraulic conductivity
porous media
hydraulic conductivity
Porous materials
porous medium
45 Citations (Scopus)

Effect of local dispersion on solute transport in randomly heterogeneous media

Zhang, D. & Neuman, S. P., Sep 1996, In : Water Resources Research. 32, 9, p. 2715-2723 9 p.

Research output: Contribution to journalArticle

Solute transport
heterogeneous medium
solute transport
uncertainty
macrodispersion
29 Citations (Scopus)
Water resources
conductivity
water resource
prediction
23 Citations (Scopus)

Head and velocity covariances under quasi-steady state flow and their effects on advective transport

Zhang, D. & Neuman, S. P., Jan 1996, In : Water Resources Research. 32, 1, p. 77-83 7 p.

Research output: Contribution to journalArticle

advection
Solute transport
Hydraulic conductivity
Stochastic models
hydrologic models
62 Citations (Scopus)

Higher-order effects on flow and transport in randomly heterogeneous porous media

Hsu, K. C., Zhang, D. & Neuman, S. P., Mar 1996, In : Water Resources Research. 32, 3, p. 571-582 12 p.

Research output: Contribution to journalArticle

porous media
Porous materials
porous medium
Advection
advection
13 Citations (Scopus)

On instability during immiscible displacement in fractures and porous media

Neuman, S. P. & Chen, G., Jun 1996, In : Water Resources Research. 32, 6, p. 1891-1894 4 p.

Research output: Contribution to journalArticle

immiscible displacement
porous media
Porous materials
porous medium
immiscible fluid
17 Citations (Scopus)

Wetting front instability in randomly stratified soils

Chen, G. & Neuman, S. P., Feb 1996, In : Physics of Fluids. 8, 2, p. 353-369 17 p.

Research output: Contribution to journalArticle

wetting
Wetting
soils
Hydraulic conductivity
Soils
1995
55 Citations (Scopus)

Eulerian-Lagrangian analysis of transport conditioned on hydraulic data 1. Analytical-numerical approach

Dongxiao Zhang, Z. & Neuman, S. P., 1995, In : Water Resources Research. 31, 1, p. 39-51 13 p.

Research output: Contribution to journalArticle

Lagrangian analysis
Hydraulic conductivity
hydraulic conductivity
fluid mechanics
Hydraulics
23 Citations (Scopus)
Lagrangian analysis
hydraulic head
Tensors
fluid mechanics
Trajectories
29 Citations (Scopus)
Lagrangian analysis
mass flow
Travel time
compliance
travel
14 Citations (Scopus)
Eulerian analysis
fluid mechanics
plume
Hydraulics
hydraulics
74 Citations (Scopus)

On advective transport in fractal permeability and velocity fields

Neuman, S. P., 1995, In : Water Resources Research. 31, 6, p. 1455-1460 6 p.

Research output: Contribution to journalArticle

Fractal dimension
Fractals
permeability
advection
power law
1994
197 Citations (Scopus)

Generalized scaling of permeabilities: validation and effect of support scale

Neuman, S. P., 1994, In : Geophysical Research Letters. 21, 5, p. 349-352 4 p.

Research output: Contribution to journalArticle

permeability
scaling
dispersivity
power law
transmissivity
5 Citations (Scopus)
Neumann Series
subsurface flow
Groundwater flow
Groundwater
Operator
1993
15 Citations (Scopus)
aquifer
222 Citations (Scopus)
Hydraulic conductivity
Tensors
conductivity
Fluxes
hydraulic conductivity
1992
38 Citations (Scopus)
three-dimensional flow
porous medium
89 Citations (Scopus)

Coupled and partially coupled Eulerian-Lagrangian model of freshwater-seawater mixing

Galeati, G., Gambolati, G. & Neuman, S. P., 1992, In : Water Resources Research. 28, 1, p. 149-165 17 p.

Research output: Contribution to journalArticle

Aquifers
Seawater
Salt water intrusion
aquifers
saltwater intrusion
31 Citations (Scopus)

Reconstruction and geostatistical analysis of multiscale fracture apertures in a large block of welded tuff

Vickers, B. C., Neuman, S. P., Sully, M. J. & Evans, D. D., 1992, In : Geophysical Research Letters. 19, 10, p. 1029-1032 4 p.

Research output: Contribution to journalArticle

fracture aperture
tuff
autocorrelation
apertures
frequency distribution
1991
5 Citations (Scopus)

Monte Carlo experiments with robust estimation of aquifer model parameters

Wittmeyer, G. & Neuman, S. P., 1991, In : Advances in Water Resources. 14, 5, p. 252-272 21 p.

Research output: Contribution to journalArticle

aquifer
inverse problem
hydraulic conductivity
experiment
calibration
46 Citations (Scopus)

Nonasymptotic behavior of a common Eulerian approximation for transport in random velocity fields

Dagan, G. & Neuman, S. P., 1991, In : Water Resources Research. 27, 12, p. 3249-3256 8 p.

Research output: Contribution to journalArticle

Lagrangian analysis
Convolution
Fluxes
product
comparison
16 Citations (Scopus)
dispersivity
hydraulic conductivity
1990
186 Citations (Scopus)
dispersivity
heterogeneous medium
nonlinearity
hydraulic conductivity
porous medium
72 Citations (Scopus)
anisotropic medium
hydraulic conductivity
anisotropy
plume
dispersivity
472 Citations (Scopus)

Universal scaling of hydraulic conductivities and dispersivities in geologic media

Neuman, S. P., Aug 1990, In : Water Resources Research. 26, 8, p. 1749-1758 10 p.

Research output: Contribution to journalArticle

dispersivity
Hydraulic conductivity
hydraulic conductivity
Hydraulics
Calibration
1989
18 Citations (Scopus)

Determination of aquitard/aquiclude hydraulic properties from arbitrary water-level fluctuations by deconvolution

Neuman, S. P. & Gardner, D. A., Jan 1989, In : Ground Water. 27, 1, p. 66-76 11 p.

Research output: Contribution to journalArticle

aquitard
Deconvolution
deconvolution
Water levels
hydraulic property
53 Citations (Scopus)

Estimation of spatial covariance structures by adjoint state maximum likelihood cross validation, 1. Theory

Samper, F. J. & Neuman, S. P., 1989, In : Water Resources Research. 25, 3, p. 351-362 12 p.

Research output: Contribution to journalArticle

Maximum likelihood
Statistical tests
Convergence of numerical methods
Covariance matrix
Error analysis
25 Citations (Scopus)
Maximum likelihood
kriging
autocorrelation
statistics
experiment
16 Citations (Scopus)
Silicon Dioxide
silica
Maximum likelihood
oxygen isotope
Oxygen Isotopes
5 Citations (Scopus)

Simulating effect of channel changes on stream infiltration

Guzman, A. G., Wilson, L. G., Neuman, S. P. & Osborn, M. D., 1989, In : Journal of Hydraulic Engineering. 115, 12, p. 1631-1645 15 p.

Research output: Contribution to journalArticle

channel change
Bank protection
Infiltration
infiltration
Rivers