Dr. Julian Zhu

Affiliate Associate Research Professor
4a69616e74696e672e5a6875406472692e656475
702-862-5416

Professional Interests

Scale issues in hydrology related to ecosystem functioning, upscaling of hydrological and ecological processes, evapotranspiration estimates and remote sensing applications, uncertainty and sensitivity analysis, subsurface hydrology, numerical modeling of hydrology and fluid mechanics, stochastic analysis and its applications, random processes and spatial variability, multiphase fluid flows and contaminant transport in porous media, artificial neural network applications in hydrology and ecology.

Professional Highlight

  • Member: American Geophysical Union (AGU), Soil Science Society of America (SSSA), Geological Society of America (GSA), W2188 USDA Multi-State Research Group, Canadian Society of Soil Science (CSSS), The Ecological Society of America (ESA), European Geosciences Union (EGU), Association of Professional Engineers of Ontario, Canada (Registered Professional Engineer)
  • Associate Editor: Soil Science Society of America Journal (SSSAJ)
  • Author/Co-author/Presenter: Over 200 technical articles, conference proceedings/presentations/abstracts, and technical reports
  • Reviewer: Over 100 manuscripts and grant proposals for about 30 journals and funding agencies
  • Chairperson/Convener: 8 sessions at AGU, ASSA-CSSA-SSSA, GSA meetings in recent years
  • University Teaching Experience: Geostatistics, Hydrogeology, Advanced Hydrogeology (Groundwater Modeling), Reservoir Mechanics

Research Areas

  • Vadose Zone Hydrology
  • Ecohydrology
  • Soil Physics
  • Groundwater Hydrology
  • Contaminant Transport
  • Climate Change and Uncertainty

Recent Projects

  • Significance of Groundwater Divide in Water Accounting and Return Flow Calculation for Lower Colorado River Aquifers, Bureau of Reclamation
  • Analyzing Groundwater Fluctuations to Better Estimate Water Use through evapotranspiration by Tamarisk, Bureau of Reclamation.
  • Integration of Climate Change Impacts into Risk and Uncertainty Analyses, Army Corps of Engineers
  • METRIC Uncertainty Analysis, Bureau of Reclamation, DRI-Nevada Department of Water Resources Program
  • Uncertainty and Sensitivity of Ground-Water Discharge Estimates for the Shrublands in the Great Basin Area, U. S. Geological Survey Water Resources Research Institute Program, Nevada Applied Research Initiative
  • Partition of Evapotranspiration and Scale Issues in Arid Landscape, U. S. Geological Survey Water Resources Research Institute Program, Nevada Applied Research Initiative
  • Unsaturated Hydraulic Properties of Anisotropic Soils, U. S. Geological Survey Water Resources Research Institute Program, Nevada Applied Research Initiative
  • New Method to Estimate Soil Hydraulic Parameter Uncertainty and Heterogeneity, Department of Energy

PhD Research Assistantship Available

Education

DegreeInstitutionArea
Ph.D. Dalhousie University, Halifax, Nova Scotia, Canada Civil Engineering
M.S. Peking University, Beijing, China Fluid Mechanics
B.S. Zhejiang University, Hangzhou, China Engineering Mechanics

Academic Affiliations

Publications & Presentations

2013

Sun, H. G., Meerschaert, M. M., Zhang, Y., Zhu, J., Chen, W. (2013). A fractal Richards' equation to capture the non-Boltzmann scaling of water transport in unsaturated media, Advances in Water Resources, 52, 292-295

2012

Caldwell, T., Young, M. H., McDonald, E. V., Zhu, J. (2012). Soil heterogeneity in Mojave Desert shrublands: Biotic and abiotic processes, v.48, 9551-9563, Water Resources Research
Zhu, J., Forsee, W. J., Schumer, R., Gautam, M. R. (2012). Potential Changes of Extreme Rainfall in Multiple Regions across the United States, 2012 AGU Fall Meeting: San Francisco

2011

Caldwell, T., Young, M. H., Zhu, J., McDonald, E. V. (2011). Soil heterogeneity in arid shrublands: biotic and abiotic controls on soil moisture variability, W2188 USDA Multi-State Research Meeting: Las Vegas, Nevada, U.S.A.
Forsee, W. J., Zhu, J. (2011). Variability and uncertainty of extreme precipitation intensities from NARCCAP simulations, American Geophysical Union Fall Meeting: San Francisco, California, U.S.A.
Forsee, W. J., Zhu, J. (2011). Analysis of extreme event precipitation intensities for different durations from NARCCAP data, North American Regional Climate Change Assessment Program 3rd Users Workshop: Boulder, Colorado, U.S.A.
Gautam, M., Zhu, J. (2011). Issues and guidance for artificial neural network pedotransfer function development, ASA-CSSA-SSSA 2011 International Annual Meetings: San Antonio, Texas, U.S.A.
Gautam, M., Zhu, J., Ye, M. (2011). Regularized artificial neural network training for biased soil hydraulic parameters, Soil Science, doi: 10.1097/SS.0b013e3182316c93
Li, Y., Acharya, K., Stone, M., Yu, Z., Young, M. H., Shafer, D., Zhu, J., Gray, K. J., Stone, A., Fan, L., Warwick, J. J. (2011). Spatiotemporal patterns in nutrient loads, nutrient concentrations, and algal biomass in Lake Taihu, China, Lake and Reservoir Management, doi: 10.1080/07438141.2011.610560
Pan, F., Zhu, J., Ye, M., Pachepsky, Y. A., Wu, Y. S. (2011). Sensitivity of unsaturated flow and contaminant transport to correlated parameters, W2188 USDA Multi-State Research Meeting: Las Vegas, Nevada, U.S.A.
Pohlmann, K. F., Zhu, J., Healy, J., Matuska, P., Isakson, K. (2011). Development of a framework for analysis of water accounting in lower Colorado River aquifers, MODFLOW and More 2011: Integrated Hydrologic Modeling: Golden, Colorado
Sun, D., Zhu, J. (2011). Soil hydraulic properties for moisture redistribution in large scale heterogeneous landscape, Hydrological Sciences Journal
Sun, D., Zhu, J. (2011). Unsaturated hydraulic conductivity for evaporation in heterogeneous soils, In Developments in Hydraulic Conductivity Research
Sun, D., Zhu, J. (2011). Lateral flow across multi-parallel columns and their implications on large-scale evapotranspiration modeling, American Geophysical Union Fall Meeting: San Francisco, California, U.S.A.
Sun, D., Zhu, J. (2011). Soil hydraulic parameters for moisture redistribution in heterogeneous landscape, ASA-CSSA-SSSA 2011 International Annual Meetings: San Antonio, Texas, U.S.A.
Sun, D., Zhu, J. (2011). Multi-dimensionality of evapotranspiration, 96th Ecological Society of America Annual Meeting: Austin, Texas, U.S.A.
Sun, D., Zhu, J. (2011). The significance of lateral flows on water flux across heterogeneous fields, ASA-CSSA-SSSA 2011 International Annual Meetings: San Antonio, Texas, U.S.A.
Sun, H. G., Chen, W., Zhang, Y., Zhu, J. (2011). A fractal Richards' equation to capture the non-Boltzmann scaling of water flows in unsaturated soils, American Geophysical Union Fall Meeting: San Francisco, California, U.S.A.
Yang, C., Yu, Z., Hao, Z., Zhang, J., Zhu, J. (2011). Impacts of climate change on flood and drought events in the Huaihe River Basin, China, Hydrology Research, doi: 10.2166/nh.2011.112
Young, M. H., Zhu, J. (2011). Riparian zone evapotranspiration and groundwater system dynamics, 96th Ecological Society of America Annual Meeting: Austin, Texas, U.S.A.
Young, M. H., Zhu, J. (2011). Impacts of evapotranspiration on fractal dynamics of groundwater systems, W2188 USDA Multi-State Research Meeting: Las Vegas, Nevada, U.S.A.
Young, M. H., Zhu, J. (2011). Impacts of riparian zone plant water use on fractal dynamics of groundwater levels, American Geophysical Union Fall Meeting: San Francisco, California, U.S.A.
Zhang, R., Zhu, J., Shu, L. (2011). Significance of conduit flow in a highly heterogeneous karst basin, American Geophysical Union Fall Meeting: San Francisco, California, U.S.A.
Zhu, J. (2011). Effect of layered structure on anisotropy of unsaturated soils, Soil Science, doi: 10.1097/SS.0b013e31824114f6
Zhu, J. (2011). Sensitivity of advective travel time of contaminants to correlated formation porosities, Hydrogeology Journal, doi: 10.1007/s10040-011-0788-0
Zhu, J., Stone, M., Forsee, W. (2011). Analysis of potential impacts of climate change on intensity-duration-frequency (IDF) relationships for six regions in the United States, Journal of Water and Climate Change
Zhu, J., Warrick, A. W. (2011). Effective unsaturated hydraulic conductivity for layered soils of structured heterogeneity, Soil Science Society of America Journal, doi: 10.2136/sssaj2011-0028
Zhu, J., Young, M. H., Healey, J., Jasoni, R. L., Osterberg, J. (2011). Answer to the comment on "Interference of river level changes on riparian zone evapotranspiration estimates from diurnal groundwater level fluctuations", Journal of Hydrology, doi: 10.1016/j.jhydrol.2011.08.005
Zhu, J., Young, M. H., Healey, J., Jasoni, R. L., Osterberg, J. (2011). Interference of river level changes on riparian zone evapotranspiration estimates from diurnal groundwater level fluctuations, Journal of Hydrology, doi: 10.1016/j.jhydrol.2011.04.016
Zhu, J., Young, M. H., Osterberg, J. (2011). Impacts of riparian zone plant water use on temporal scaling of groundwater systems, Hydrological Processes, doi: 10.1002/hyp.8241

2010

Forsee, W. J., Zhu, J., Stone, M. C. (2010). Potential impacts of climate change on intensity-duration-frequency relationships for locations in the United States, AGU Fall Meeting: San Francisco, California, U.S.A.
Gautam, M. R., Zhu, J., Ye, M., Meyer, P. D., Hassan, A. (2010). Modified ANN-pedotransfer function for soil hydraulic properties, W2188 USDA Multi-State Research Meeting: Las Vegas, NV
Gautam, M., Zhu, J. (2010). New artificial neural network based pedotransfer functions to predict soil hydraulic properties, 2010 EGU General Assembly: Vienna, Austria
Li, Y., Acharya, K., Zhu, J. (2010). Determining the water age of Lake Taihu during the water transfer from Yangtze River, China, 2010 EGU General Assembly: Vienna, Austria
Pan, F., Zhu, J., Ye, M., Pachepsky, Y. A., Wu, Y. S. (2010). Sensitivity Analysis of Unsaturated Flow and Contaminant Transport with Correlated Parameters, Journal of Hydrology, doi: 10.1016/j.jhydrol.2010.11.045
Pohlmann, K. F., Zhu, J., Chapman, J. B., Russell, C. E., Shafer, D. S., Carroll, R. W. (2010). Effect of porosity correlations on sensitivity of contaminant travel time, AGU Fall Meeting: San Francisco, California, U.S.A.
Schumer, R., Zhu, J. (2010). Implications of non-stationarities of flow and volume frequency statistics on flood risk, Flood Plain Management Association Annual Conference: Henderson, Nevada, U.S.A.
Sun, D., Zhu, J. (2010). Capillary pressure-dependent anisotropy of unsaturated soils, Canadian Journal of Soil Science, 92, 319-329
Sun, D., Zhu, J. (2010). Saturation-dependent anisotropy of unsaturated soils, 19th World Congress of Soil Science - Soil solution for a changing world: Brisbane, Australia
Sun, D., Zhu, J. (2010). Averaging hydraulic parameters for evaporation in heterogeneous soils, 19th World Congress of Soil Science - Soil solution for a changing world: Brisbane, Australia
Sun, D., Zhu, J. (2010). Aggregating Soil Hydraulic Property Field Measurements for Large Scale Infiltration Process, Western Society of Soil Science and Western Society of Crop Science Joint Annual Meetings with the Western National Cooperative Soil Survey: Las Vegas, Nevada, USA.
Sun, D., Zhu, J. (2010). Interactions of evaportranspiration between two parallel columns, AGU Fall Meeting: San Francisco, California, U.S.A.
Sun, D., Zhu, J. (2010). Modeling transpiration and evaporation in parallel columns, ASA-CSSA-SSSA 2010 International Annual Meetings: Long Beach, California, U. S. A.
Sun, D., Zhu, J. (2010). Hydraulic conductivity anisotropy of heterogeneous unsaturated soils, 2010 EGU General Assembly: Vienna, Austria
Sun, D., Zhu, J. (2010). Soil hydraulic properties for large scale transient absorption and redistribution, 2010 EGU General Assembly: Vienna, Austria
Sun, D., Zhu, J. (2010). Modeling of ET partitioning in arid environments - scale effects, W2188 USDA Multi-State Research Meeting: Las Vegas, Nevada, U. S. A.
Zhang, R., Shu, L., Zhu, J., Liu, L. (2010). A precipitation and spring discharge model in sinking stream basin, AGU Fall Meeting: San Francisco, California, U.S.A.
Zhang, Y., Zhu, J., Sun, D., Nie, W. (2010). Non-Fickian mechanism of contaminant transport in unsaturated heterogeneous soils, ASA-CSSA-SSSA 2010 International Annual Meetings: Long Beach, California, U. S. A.
Zhu, J. (2010). Effective hydraulic functions in layered porous media, ASA-CSSA-SSSA 2010 International Annual Meetings: Long Beach, California, U. S. A.
Zhu, J. (2010). Saturation-dependent anisotropy of structured and random layered soils, 2010 EGU General Assembly: Vienna, Austria
Zhu, J., Pohlmann, K. F., Chapman, J. B., Russell, C. E., Carroll, R. W., Shafer, D. S. (2010). Sensitivity of Solute Advective Travel Time to Porosities of Hydrogeologic Units, Ground Water, 48, doi: 10.1111/j.1745-6584.2009.00664.x
Zhu, J., Pohlmann, K. F., Chapman, J. B., Russell, C. E., Carroll, R. W., Shafer, D. S. (2010). Sensitivity to Formation Porosity of Contaminant Transport from Nevada Test Site to Yucca Mountain, Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management, ASCE, doi: 10.1061/(ASCE)HZ.1944-8376.0000047

2009

Acharya, K., Li, Y., Stone, M. C., Yu, Z., Young, M. H., Shafer, D. S., Zhu, J., Warwick, J. J. (2009). Spatiotemporal Distribution of Algal and Nutrient, and Their Correlations Based on Long-term Monitoring Data in Lake Taihu, China, AGU Fall Meeting: San Francisco, California
Chen, L., Young, M. H., Zhu, J., Susfalk, R. B. (2009). An integrated approach to modeling solute transport in streams and canals with applications, Journal of Hydrology, 378, 128-136, doi: 10.1016/j.jhydrol.2009.09.012
Fenstermaker, L. F., Young, M. H., Zhu, J. (2009). Near-Surface Water Content and Carbon Flux in Biological Soil Crust, AGU Chapman Conference on Examining Ecohydrological Feedbacks of Landscape Change Along Elevation Gradients in Semiarid Regions: Sun Valley, Idaho
Fenstermaker, L. F., Young, M. H., Zhu, J. (2009). Dynamics of Very Near-Surface Water Contents in an Arid Setting, ASA-CSSA-SSSA 2009 International Annual Meetings: Pittsburgh, Pennsylvania
Li, Y., Acharya, K., Chen, D., Stone, M. C., Yu, Z., Young, M. H., Zhu, J., Shafer, D. S., Warwick, J. J. (2009). Circulation and Temperature Stratification of Lake Mead under Changing Water Levels, AGU Fall Meeting: San Francisco, California
Pan, F., Ye, M., Zhu, J., Wu, Y. S., Hu, B. X., Yu, Z. (2009). Effect of Water Retention Parameters on Predictive Uncertainty of Unsaturated Flow and Contaminant Transport, Vadose Zone Journal, 8, 158-166, doi: 10.2136/vzj2008.0092
Sun, D., Zhu, J. (2009). Effective Soil Hydraulic Parameters for Transient Flows in Heterogeneous Soils, Vadose Zone Journal, 8, doi: 10.2136/vzj2008.0004
Sun, D., Zhu, J. (2009). Effective Soil Hydraulic Properties for Transient Evaporation in Heterogeneous Soils, AGU Joint Assembly: Toronto, Ontario, Canada
Sun, D., Zhu, J. (2009). Effect of Spatial Soil Hydraulic Properties on Large Scale Evapotranspiration, AGU Joint Assembly: Toronto, Ontario, Canada
Sun, D., Zhu, J. (2009). Soil Hydraulic Properties and Large Scale Evapotranspiration in Desert Ecosystem, 94th ESA Annual Meeting: Albuquerque, New Mexico
Sun, D., Zhu, J. (2009). Averaging Schemes of Hydraulic Properties in Large Scale Heterogeneous Soils, 2009 GSA Annual Meeting: Portland, Oregon
Sun, D., Zhu, J. (2009). Soil Hydraulic Parameters for Evaporation in Large Scale Heterogeneous Soils, ASA-CSSA-SSSA 2009 International Annual Meetings: Pittsburgh, Pennsylvania
Sun, D., Zhu, J. (2009). Effective Soil Hydraulic Properties for Infiltration and Redistribution in Unsaturated Zone, AGU Fall Meeting: San Francisco, California
Sun, D., Zhu, J., Young, M. H., Caldwell, T., McDonald, E. V. (2009). Effect of Canopy Patterns on Large Scale Water Budgets in Arid Environments, AGU Fall Meeting: San Francisco, California
Young, M. H., Moran, E. A., Yu, Z., Zhu, J., Smith, D. M. (2009). Reducing saturated hydraulic conductivity of soil with polyacrylamide, Soil Science Society of America Journal, 73, 13-20, doi: 10.2136/sssaj2007.0378
Young, M. H., Zhu, J. (2009). Sensitivity and Uncertainty of Ground-Water Discharge Estimates for Semi-Arid Shrublands, Journal of the American Water Resources Association, 45, 641-653, doi: 10.1111/j.1752-1688.2009.00312.x
Young, M. H., Zhu, J. (2009). Sensitivity of Unlined Canal Seepage to Hydraulic Properties of Polyacrylamide (PAM) Treated Soil, Soil Science Society of America Journal, 73, 695-703, doi: 10.2136/sssaj2008.0261
Young, M. H., Zhu, J. (2009). Sensitivity of Evapotranspiration Estimates for Semi-Arid Shrublands, 94th ESA Annual Meeting: Albuquerque, New Mexico
Zhu, J. (2009). Soil Hydraulic Properties of Layered Formations - Anisotropy and Uncertainty, Department of Energy Experimental Program to Stimulate Competitive Research Program Conference: Hauppauge, New York
Zhu, J. (2009). Capillary Pressure-Dependent Anisotropy of Unsaturated Layered Soils, ASA-CSSA-SSSA 2009 International Annual Meetings: Pittsburgh, Pennsylvania
Zhu, J., Pohlmann, K. F., Chapman, J. B., Russell, C. E., Carroll, R. W., Shafer, D. S. (2009). Uncertainty and Sensitivity of Contaminant Travel Times from the Upgradient Nevada Test Site to the Yucca Mountain Area
Zhu, J., Warrick, A. W. (2009). Effective Hydraulic Conductivity for Layered Soils of Structured Heterogeneity, W1188 USDA Multi-State Research Meeting: Oracle, Arizona

2008

Caldwell, T., Young, M. H., Zhu, J., McDonald, E. V. (2008). Spatial structure of hydraulic properties from canopy to interspace in the Mojave Desert., Geophysical Research Letters, 35, doi: 10.1029/2008GL035095
Caldwell, T., Young, M. H., Zhu, J., McDonald, E. V. (2008). Heterogeneity of Soils and Hydraulic Properties from Canopy to Interspace in the Mojave Desert, 2008 Symposium: Understanding Near-Surface Environmental Processes: Las Vegas, NV
Caldwell, T., Young, M. H., Zhu, J., McDonald, E. V. (2008). Gradation of Soil Hydraulic Properties from Canopy to Interspace on a Mojave Desert Soil Chronosequence, European Geosciences Union 2008 General Assembly: Vienna, Austria
Caldwell, T., Young, M. H., Zhu, J., McDonald, E. V. (2008). Hydropedology of Canopy-Interspace Ecosystems in the Mojave Desert: Biotic and Abiotic Processes, 93rd Ecological Society of America Annual Meeting
Earman, S. B., Stone, M. C., Zhu, J. (2008). Integration of climate change impacts into risk and uncertainty analysis, Floodplain Management Association 2008 Annual Conference: San Diego, CA
F., P., Zhu, J., Ye, M., Wu, Y. S., Yu, Z. (2008). Sensitivity Analysis of Unsaturated Flow Uncertainty at Yucca Mountain, 73-80, Proceedings of the 12th International High-Level Radioactive Waste Management Conference (IHLRWM): Las Vegas, NV
Gautam, M. R., Zhu, J., Ye, M., Meyer, P. D., Hassan, A. (2008). Improved Artificial Neural Network-Pedotransfer Functions (ANN-PTFs) for Estimating Soil Hydraulic Parameters, AGU 2008 Fall Meeting: San Francisco, California, U.S.A.
Pan, F., Ye, M., Zhu, J., Wu, Y. S., Hu, B. X., Yu, Z. (2008). Incorporating Layer- and Local-Scale Heterogeneities in Numerical Simulation of Unsaturated Flow and Tracer Transport, Journal of Contaminant Hydrology, Available online November 5, doi: 10.1016/j.jconhyd.2008.10.012
Pan, F., Zhu, J., Ye, M., Yu, Z. (2008). Effect of Water Retention Parameter Uncertainty on Unsaturated Flow in Heterogeneous Soils, 2008 Symposium: Understanding Near-Surface Environmental Processes: Las Vegas, NV
Pan, F., Zhu, J., Ye, M., Yu, Z. (2008). Sensitivity Analysis of Contaminant Transport Uncertainty in Unsaturated Zone, 2008 GSA and ASA-CSSA-SSSA Joint Annual Meeting: Houston, Texas
Pan, F., Zhu, J., Ye, M., Yu, Z. (2008). An Estimation of Correlation Structure of Hydraulic Parameters using Bayesian Inference Approach, AGU 2008 Fall Meeting: San Francisco, California, U.S.A.
Pohlmann, K. F., Zhu, J., Chapman, J. B., Russell, C. E., Carroll, R. W., Shafer, D. S. (2008). Contaminant Travel Times from the Nevada Test Site to Yucca Mountain: Sensitivity to Porosity, AGU 2008 Fall Meeting: San Francisco, California, U.S.A.
Sun, D., Zhu, J. (2008). Effective Soil Hydraulic Properties for Heterogeneous Soils: Effect of Temporal Scales, 2008 Symposium: Understanding Near-Surface Environmental Processes: Las Vegas, NV
Sun, D., Zhu, J. (2008). Effective Soil Hydraulic Properties for Heterogeneous Fields, 2008 GSA and ASA-CSSA-SSSA Joint Annual Meeting: Houston, Texas
Sun, D., Zhu, J., Young, M. H., Caldwell, T., McDonald, E. V. (2008). Effect of Distinct Under-Canopy and Interspace Soil Hydraulic Properties on Large Scale Water Budget, AGU 2008 Fall Meeting: San Francisco, California, U.S.A.
Sun, D., Zhu, J., Young, M. H., Caldwell, T., McDonald, E. V. (2008). Effect of Distinct Under-Canopy and Interspace soil Hydraulic Properties on Large Scale Water Budget, Am. Geophysical Union National Meetings: San Francisco, CA
Young, M. H., Caldwell, T., Zhu, J., Fenstermaker, L. F., McDonald, E. V. (2008). Multi-Scale Variability of Soil and Hydraulic Properties and Impacts to Arid Water Balance, 2008 GSA and ASA-CSSA-SSSA Joint Annual Meeting: Houston, Texas
Young, M. H., Caldwell, T., Zhu, J., Fenstermaker, L. F., McDonald, E. V. (2008). Multi-Scale Variability of Soil and Hydraulic Properties and Impacts to Arid Water Balance, Am. Soc. Agron. National Meetings: Houston, TX
Young, M. H., J., H., Zhu, J., Chief, K., Yu, Z., Knight, E., Mon, J., Tyler, S. W., Menon, M. (2008). Examining Arid Soil Processes Using Weighing Lysimeter in Nevada, U.S.A., 2008 Symposium: Understanding Near-Surface Environmental Processes: Las Vegas, NV
Young, M. H., Yu, Z., Tyler, S. W., Chief, K., Knight, E., Healey, J. M., Zhu, J., Menon, M., Mon, J. (2008). Examining Arid Soil Processes in Nevada USA Using Weighing Lysimeters, European Geosciences Union 2008 General Assembly: Vienna, Austria
Young, M. H., Zhu, J. (2008). Applying Polyacrylamide (PAM) to Reduce Seepage Loss of Water through Unlined Canals, 2008 UCOWR/NIWR Conference: Durham, North Carolina
Zhu, J. (2008). Equivalent Parallel and Perpendicular Unsaturated Hydraulic Conductivities: Arithmetic Mean or Harmonic Mean?, Soil Science Society of America Journal, 72, 1226-1233, doi: 10.2136/sssaj2007.0337
Zhu, J. (2008). Hydraulic Properties of Layered Soils and Its Impact on Water Flow - Anisotropy and Numerical Simulations, DOE EPSCOR State/National Laboratory Program Review: Oak Ridge, Tennessee
Zhu, J. (2008). Equivalent Unsaturated Hydraulic Conductivities for Layered Soils: Arithmetic Mean or Harmonic Mean?, W1188 USDA Multi-State Research Meeting: Las Vegas, NV
Zhu, J. (2008). Saturation-Dependent Anisotropy of Unsaturated Soils, 2008 Symposium: Understanding Near-Surface Environmental Processes: Las Vegas, NV
Zhu, J. (2008). Unsaturated Hydraulic Conductivity for Layered Heterogeneous Soils, AGU 2008 Fall Meeting: San Francisco, California, U.S.A.
Zhu, J. (2008). Macroscopic Unsaturated Hydraulic Conductivities, 2008 GSA and ASA-CSSA-SSSA Joint Annual Meeting: Houston, Texas
Zhu, J., Caldwell, T., Young, M. H., McDonald, E. V. (2008). Scaling Under-Canopy and Interspace Soil Hydraulic Properties in Desert Ecosystems, 2008 Symposium: Understanding Near-Surface Environmental Processes: Las Vegas, NV
Zhu, J., Caldwell, T., Young, M. H., McDonald, E. V. (2008). Implications of Under-Canopy and Interspace Soil Hydraulic Property Distributions in Large Scale Desert Ecosystems, European Geosciences Union 2008 General Assembly: Vienna, Austria
Zhu, J., Pohlmann, K. F., Chapman, J. B., Russell, C. E., Carroll, R. W., Shafer, D. S. (2008). Uncertainty and Sensitivity of Contaminant Travel Times from Nevada the Test Site to Yucca Mountain, 2008 Devils Hole Workshop: Death Valley, CA
Zhu, J., Sykes, J. F. (2008). Analytical NAPL Dissolution Models in Relation to Other Rate Coefficient Correlation Models in Porous Media, MODFLOW and More: Ground Water and Public Policy: Golden, CO

2007

Caldwell, T., Young, M. H., Zhu, J. (2007). Spatial Variability of Soil Hydraulic Properties at Interspace/Canopy Microsites
Caldwell, T., Young, M. H., Zhu, J. (2007). Spatial Variability of Soil Hydraulic Properties at Interspace/Canopy Microsites, ASA-CSSA-SSSA 2007 International Annual Meetings: New Orleans, Louisiana
Caldwell, T., Young, M. H., Zhu, J., Fenstermaker, L. F., McDonald, E. V. (2007). Scaling Heterogeneous Soil Hydraulic Properties Using Canopy/Interspace Distributions in a Mojave Desert Ecosystem, AGU 2007 Fall Meeting: San Francisco, California.
Caldwell, T., Young, M. H., Zhu, J., Fenstermaker, L. F., McDonald, E. V. (2007). Scaling Heterogeneous Soil Hydraulic Properties Using Canopy/Interspace Distributions in a Mojave Desert Ecosystem
Caldwell, T., Young, M. H., Zhu, J., McDonald, E. V. (2007). Small-Scale Heterogeneity of Soil Hydraulic Properties on Large-Scale Water Balance Simulations
Caldwell, T., Young, M. H., Zhu, J., McDonald, E. V. (2007). Small-Scale Heterogeneity of Soil Hydraulic Properties on Large-Scale Water Balance Simulations, ASA-CSSA-SSSA 2007 International Annual Meetings: New Orleans, Louisiana
Chen, L., Young, M. H., Zhu, J. (2007). Polyacrylamide Transport in Water Delivery Canals
Mohanty, B. P., Ines, A. V., Das, N. N., Jana, R., Zhu, J. (2007). Effective Soil Hydraulic Parameters - State-of-the-art!, ASA-CSSA-SSSA 2007 International Annual Meetings: New Orleans, Louisiana
Mohanty, B. P., Zhu, J. (2007). Effective Hydraulic Parameters in Horizontally and Vertically Heterogeneous Soils for Steady-State Land-Atmosphere Interaction, Journal of Hydrometeorology, 8, 715-729
Pan, F., Zhu, J., Ye, M., Wu, Y. S., Yu, Z., Hu, B. X. (2007). Sensitivity analysis of hydraulic parameters on radionuclide transport uncertainty in the unsaturated zone of Yucca Mountain, AGU 2007 Fall Meeting: San Francisco, California
Sun, D., Zhu, J. (2007). Saturation-Dependent Hydraulic Conductivity Anisotropy in Unsaturated Soils, ASA-CSSA-SSSA 2007 International Annual Meetings: New Orleans, Louisiana
Sun, D., Zhu, J. (2007). Effective Hydraulic Properties for Transient Flow in Unsaturated Zone, AGU 2007 Fall Meeting: San Francisco, California
Sun, D., Zhu, J. (2007). Uncertainty and Sensitivity Analysis of Non-Aqueous Phase Liquid Dissolution Models in Subsurface, Japan Geoscience Union Meeting: Makuhari, Japan
Sun, D., Zhu, J. (2007). Effective Hydraulic Parameters for Transient Infiltration in Heterogeneous Soil, GSA 2007 Annual Meeting: Denver, Colorado
Ye, M., Schaap, M. G., Khaleel, R., Zhu, J. (2007). Simulation of Field Injection Experiments in Heterogeneous Unsaturated Media Using Cokriging and Artificial Neural Network, Water Resources Research, 43, doi: 10.1029/2006WR005030
Young, M. H., Woodrow, J., Moser, D. P., Zhu, J., Chen, L., Susfalk, R. B., Miller, G. C., Labahn, S. K., Moran, E. A., Arrowood, T. (2007). Results of Laboratory Experiments in Support of PAM-Related Research (with nine authors)
Young, M. H., Zhu, J., Tyler, S. W. (2007). Large Weighing Lysimeters for Studying Environmental Processes in Arid Soils
Zhao, Y., Zhu, J., Ye, M., Meyer, P. D., Pan, F., Hassan, A. E. (2007). Incorporating Soil Hydraulic Parameter Statistics in Developing Pedo-transfer Functions, AGU 2007 Fall Meeting: San Francisco, California
Zhu, J. (2007). Parallel and Perpendicular Unsaturated Hydraulic Conductivities for Layered Soils, ASA-CSSA-SSSA 2007 International Annual Meetings: New Orleans, Louisiana.
Zhu, J. (2007). Upscaling Schemes of Hydraulic Properties and Characterizing Hydraulic Parameter Variability Using Cokriging and Artificial Neural Network for Heterogeneous Soils, W1188 Multistate Research Project Annual Meeting: Las Vegas, Nevada
Zhu, J. (2007). A New Method for Estimating Soil Hydraulic Parameter Uncertainty, and Heterogeneity Using Bayesian Updating and Neural Network Methods, DOE-ERSP PI Meeting: Lansdowne, Virginia
Zhu, J., Sun, D., Neelakrishnan, S. (2007). Hydraulic Conductivity Anisotropy of Unsaturated Soils, AGU 2007 Fall Meeting: San Francisco, California
Zhu, J., Sykes, J. F. (2007). Nonaqueous Phase Liquid Dissolution Characteristics and Large-Scale Contaminant Transport in Subsurface, GSA 2007 Annual Meeting: Denver, Colorado
Zhu, J., Sykes, J. F. (2007). Nonaqueous Phase Liquid Dissolution Characteristics and Large-Scale Subsurface Contaminant Transport Modeling, AGU Joint Assembly: Acapulco, Mexico
Zhu, J., Ye, M., Meyer, P. D., Zhao, Y., Pan, F. (2007). Estimating Soil Hydraulic Parameter Uncertainty and Heterogeneity Using Bayesian Updating and Neural Network Methods, DOE EPSCoR State/National Laboratory Program Review Workshop: Golden, Colorado
Zhu, J., Young, M. H., van Genuchten, M. (2007). Upscaling schemes and relationships for Gardner and van Genuchten hydraulic functions for heterogeneous soils, Vadose Zone J., 6, 186-195

2006

Baron, A., Yu, Z., Kreamer, D., Zhu, J. (2006). Simulation of Hydrologic Response in an Arid and a Humid Watershed Using a Distributed Hydrologic Model System
Baron, A., Yu, Z., Zhu, J. (2006). Soil Moisture Variation and its Significance to the Water Budget of the Lower Virgin Valley, Nevada
Chen, L., Young, M. H., Zhu, J., Susfalk, R. B. (2006). Modeling Polyacrylamide Transport in Water Delivery Canals
Koehne, J. M., Zhu, J. (2006). Stochastic Analysis of Specific Discharge in a Leaky Aquifer, GSA 2006 Annual Meeting
Mohanty, B. P., Ines, A. V., Zhu, J., Jana, R., Das, N. N., Sharma, S. K. (2006). Effective Soil Hydraulic Parameters Across Scales for Land-Atmosphere Interaction
Pohlmann, K. F., Zhu, J., Ye, M., Carroll, R. W., Chapman, J. B., Russell, C. E., Shafer, D. S. (2006). Evaluation of Groundwater Pathways and Travel Times From the Nevada Test Site to the Potential Yucca Mountain Repository
Pohlmann, K. F., Zhu, J., Ye, M., Chapman, J. B., Russell, C. E., Shafer, D. S., Carroll, R. W. (2006). Evaluation of Groundwater Pathways and Travel Times from the Nevada Test Site to the Potential Yucca Mountain Repository
Satish, M. G., Zhu, J. (2006). Stochastic Analysis of Macrodispersion in Semi-Confined Aquifers
Sharma, S. M., Mohanty, B. P., Zhu, J. (2006). Including topography and vegetation attributes for developing pedo transfer functions in Southern Great Plains, Soil Science Society of America Journal, 70, 1430-1440
Sharma, S. M., Mohanty, B. P., Zhu, J. (2006). Including Topography and Vegetation Attributes for Developing Pedotransfer Functions
Sun, D., Zhu, J. (2006). Upscaling Schemes and Effective Hydraulic Parameters for Transient Flows in Heterogeneous Soils
Sun, D., Zhu, J., Young, M. H. (2006). Effective Hydraulic Properties for Large Scale Transient Infiltration in Heterogeneous Formations
Sykes, J. F., Zhu, J. (2006). Nonaqueous Phase Liquid Transport in Variably Saturated Heterogeneous Porous Formations
Young, M. H., Zhu, J. (2006). Upscaling relationships of hydraulic functions for flux and moisture in heterogeneous soils
Zhu, J. (2006). Interactive comment on Dynamical process upscaling for deriving catchment scale state variables and constitutive relations for meso-scale process models by Zehe et al., Hydrology and Earth System Sciences Discussions, 3, 594-598
Zhu, J. (2006). Scale Effects on Dispersivities of Nonaqueous Phase Liquid (NAPL) Transport in Variably Saturated Formations
Zhu, J., Mohanty, B. P. (2006). Effective scaling factor for transient infiltration in heterogeneous soils, Journal of Hydrology, 319, 96-108
Zhu, J., Mohanty, B. P., Das, N. N. (2006). On the effective averaging schemes of hydraulic properties at the landscape scale, Vadose Zone Journal, 5, 308-316
Zhu, J., Mohanty, B. P., Das, N. N. (2006). Effective Soil Hydraulic Properties at the Landscape Scale and Beyond
Zhu, J., Pohlmann, K. F., Ye, M., Shafer, D. S., Carroll, R. W. (2006). Groundwater pathways from regions upgradient of potential Yucca Mountain repository, 623-629
Zhu, J., Satish, M. G. (2006). Groundwater Flows in Heterogeneous Semi-Confined Aquifers
Zhu, J., Sun, D., Young, M. H. (2006). Aggregating Hydraulic Property Measurements to Large Scale Hydrologic Processes
Zhu, J., van Genuchten, M. T. (2006). Upscaling Schemes for Hydraulic Functions at the Landscape Scale
Zhu, J., Young, M. H., Moran, E. A. (2006). Effects of Polyacrylamide Treated Soils on Water Seepage in Unlined Water Delivery Canals

2005

Mohanty, B. P., Zhu, J. (2005). Effective land surface hydraulic parameters for horizontally and vertically heterogeneous soil
Mohanty, B. P., Zhu, J. (2005). Soil hydraulic parameters for heterogeneous landscapes
Satish, M. G., Zhu, J. (2005). Boundary element formulations for stochastic flow in semiconfined aquifers with random boundary conditions, 197-210
Ye, M., Schaap, M. G., Khaleel, R., Zhu, J. (2005). Characterizing soil hydraulic parameter heterogeneity using Cokriging and artificial neural network: A framework of integrating hard and soft data
Ye, M., Schaap, M. G., Khaleel, R., Zhu, J. (2005). Characterizing variability in soil hydraulic properties using cokriging and artificial neural network
Young, M. H., Yu, Z., Tyler, S. W., Drohan, P. J., Verburg, P. S., Cooper, C. A., Caldwell, T., Decker, D. L., Devitt, D. A., Kreamer, D. K., McDonald, E. V., Nowak, R. S., Papelis, C., Smith, S. D., Sun, H., Ye, M., Zhu, J. (2005). Scaling environmental processes in heterogeneous arid soils (SEPHAS): A new Nevada NSF EPSCoR initiative
Young, M. H., Zhu, J. (2005). Correspondence of hydraulic functions and its implication on upscaling for large scale flux and surface soil moisture in heterogeneous soils
Zhu, J. (2005). Equivalence of hydraulic functions and its implication on upscaling for steady state flux and surface soil moisture in heterogeneous soils
Zhu, J., Young, M. H., Cooper, C. A., Devitt, D. A. (2005). Modeling tritium vapor transport in soil profiles and subsequent tritium uptake by plants

2004

Sharma, S. K., Mohanty, B. P., Zhu, J. (2004). Addition of topographic and vegetation attributes prediction of soil hydraulic parameters for southern great plains region
Sun, D., Zhu, J. (2004). Approximate solutions of non-Newtonian flows over a swarm of bubbles, International Journal of Multiphase Flow, 30, 1271-1278
Sun, D., Zhu, J. (2004). Spatial variations of residual NAPL zone concentration in subsurface
Zhu, J., Mohanty, B. P. (2004). Soil hydraulic parameter upscaling for steady-state flows with plant root-water uptake, Vadose Zone Journal, 3, 1464-1470
Zhu, J., Mohanty, B. P. (2004). Significance of hydraulic parameter distribution skewness on effective averaging schemes in heterogeneous soils
Zhu, J., Mohanty, B. P. (2004). Impact of soil hydraulic parameter distributions on upscaling for steady state flow in heterogeneous soils
Zhu, J., Mohanty, B. P., Raghavendra, J. (2004). Hydraulic parameter upscaling in heterogeneous soil, topography and vegetation
Zhu, J., Mohanty, B. P., Warrick, A. W., van Genuchten, M. T. (2004). Correspondence and upscaling of hydraulic functions for heterogeneous soils, Vadose Zone Journal, 3, 527-533
Zhu, J., Sykes, J. F. (2004). Simple screening models of NAPL dissolution in the subsurface, Journal of Contaminant Hydrology, 72, 245-258

2003

Mohanty, B. P., Zhu, J. (2003). Guidelines for Aggregating Hydrologic Parameters from Local Scale to Model Scale, EGS-AGU-EUG Joint Assembly: Nice, France
Mohanty, B. P., Zhu, J. (2003). Soil Hydraulic Properties: Pore-Scale to Landscape-Scale, ASA-CSSA-SSSA Annual Meeting: Denver, CO
Mohanty, B. P., Zhu, J. (2003). Hydraulic Property Upscaling in Heterogeneous Soils, AGU Fall Meeting: San Francisco, CA
Mohanty, B. P., Zhu, J. (2003). Effective Soil Hydraulic Parameters in Heterogeneous Soils, AGU Fall Meeting: San Francisco, CA
Mohanty, B. P., Zhu, J. (2003). Effective Soil Scaling Factor for Infiltration in Heterogeneous Soils, AGU Fall Meeting: San Francisco, CA
Sykes, J. F., Zhu, J. (2003). Empirical Models of NAPL Dissolution and Their Applications in Subsurface Contaminant Transport Modeling, AGU Fall Meeting: San Francisco, CA
Zhu, J., Mohanty, B. P. (2003). Spatial Averaging of van Genuchten Hydraulic Parameters for Steady State Flow in Heterogeneous Soils, Vadose Zone Journal, 1, 261-272
Zhu, J., Mohanty, B. P. (2003). Effective Hydraulic Parameters for Steady State Flows in Heterogeneous Soils, Water Resources Research, 39, doi: 10.1029/2002WR001831
Zhu, J., Mohanty, B. P. (2003). Upscaling of Hydraulic Properties of Heterogeneous Soils, In Methods of Scaling in Soil Physics, 97-117
Zhu, J., Mohanty, B. P. (2003). Effective Hydraulic Parameters in Heterogeneous Soils, 3rd SAHRA Annual Meeting: Tucson, AZ
Zhu, J., Mohanty, B. P. (2003). Soil Hydraulic Parameter Upscaling for Steady State Flows with Plant Rootwater Uptakes in Heterogeneous Soils, AGU Fall Meeting: San Francisco, CA

2002

Zhu, J., Mohanty, B. P. (2002). Analytical Solutions for Steady State Vertical Infiltration, Water Resources Research, 38, doi: 10.1029/2001WR000398
Zhu, J., Mohanty, B. P. (2002). Upscaling of Hydraulic Properties for Steady State Evaporation and Infiltration, Water Resources Research, 38, doi: 10.1029/2001WR000704
Zhu, J., Mohanty, B. P. (2002). Upscaling Hydraulic Properties for Steady Vertical Flows, Gordon Research Conference: Andover, NH
Zhu, J., Mohanty, B. P. (2002). Upscaling Hydraulic Properties for Steady State Evaporation and Infiltration, NSH-SAHRA Annual Meeting: Tucson, AZ
Zhu, J., Warrick, A. W., Mohanty, B. P. (2002). Correspondence of Hydraulic Functions and its Significance in Upscaling of Hydraulic Properties for Heterogeneous Soils, AGU Fall Meeting: San Francisco, CA

2001

Mohanty, B. P., Zhu, J. (2001). Accuracy and Uncertainty of Average Hydraulic Parameters for Steady State Flows in Heterogeneous Soils, AGU Fall Meeting: San Francisco, CA
Zhu, J. (2001). Transport and Fate of Nonaqueous Phase Liquid in Variably Saturated Porous Media with Evolving Scales of Heterogeneity, Stochastic Environmental Research and Risk Assessment, 15, 447-461
Zhu, J. (2001). A Note on Slow Non-Newtonian Flows Over an Ensemble of Spherical Bubbles, Chemical Engineering Science, 56, 2237-2241
Zhu, J. (2001). Fate of Nonaqueous Phase Liquid (NAPL) in Variably Saturated Fractal Formations, AGU Fall Meeting: San Francisco, CA
Zhu, J., Mohanty, B. P. (2001). Upscaling of Hydraulic Properties, ASA-CSSA-SSSA Annual Meeting: Charlotte, NC
Zhu, J., Satish, M. G. (2001). Stochastic Analysis of Groundwater Flow in Aquifers with leakage, Stochastic Environmental Research and Risk Assessment, 15, 228-243
Zhu, J., Schaap, M. G., Mohanty, B. P. (2001). Soil Hydraulic Properties - Upscaling from Measurement Scale to Hydrologic Model Scale, NASA-LSH PI Meeting: Potomac, MD

2000

Zhu, J. (2000). A Note on Statistical Analysis of Rate Coefficient of Non-Aqueous Phase Liquid Dissolution in Porous Media, Water Resources Research, 36, 1347-1352
Zhu, J., Sykes, J. F. (2000). Head Variance and Macrodispersivity Tensor in a Semiconfined Fractal Porous Media, Water Resources Research, 36, 203-212
Zhu, J., Sykes, J. F. (2000). The Influence of NAPL Dissolution Characteristics on Field-Scale Contaminant Transport in Subsurface, Journal of Contaminant Hydrology, 41, 133-154
Zhu, J., Sykes, J. F. (2000). Stochastic Simulations of NAPL Mass Transport in Variably Saturated Heterogeneous Porous Media, Transport in Porous Media, 39, 289-314

1999

Zhu, J., Satish, M. G. (1999). Stochastic Analysis of Macrodispersion in a Semi-confined Aquifer, Transport in Porous Media, 35, 273-297

1998

Zhu, J. (1998). Specific Discharge Covariance in a Heterogeneous Semi-confined Aquifer, Water Resources Research, 34, 1951-1957

1997

Zhu, J. (1997). Drag and Mass Transfer for Flow of a Carreau Fluid Past a Swarm of Newtonian Drops, International Journal of Multiphase Flow, 21, 935-941
Zhu, J., Satish, M. G. (1997). A Boundary Element Method for Stochastic Flow Problems in a Semiconfined Aquifer with Random Boundary Conditions, Engineering Analysis with Boundary Elements, 19, 199-208

1996

Zhu, J., Deng, Q. (1996). Non-Newtonian Flow Past an Ensemble of Newtonian Droplets, Chemical Engineering Science, 49, 147-150

1995

Satish, M. G., Zhu, J. (1995). Closure to "Stochastic Analysis of Groundwater Flow in a Semiconfined Aquifer", Journal of Hydraulic Engineering, ASCE, 121, 291-292

1994

Satish, M. G., Zhu, J. (1994). Stochastic Analysis of Groundwater Flow in a Semiconfined Aquifer, Journal of Hydraulic Engineering, ASCE, 120, 147-168

1993

Satish, M. G., Zhu, J. (1993). Stochastic Approach for Groundwater Flow in a Semiconfined Aquifer Subject to Random Boundary Conditions, Advances in Water Resources, 15, 329-339

1992

Rahman, M., Satish, M. G., Perrie, W., Zhu, J. (1992). Drift Forces on a Pair of Vertical Cylinders, International Journal for Numerical Methods in Fluids, 15, 817-838
Satish, M. G., Zhu, J. (1992). Flow Resistance and Mass Transfer in Slow Non-Newtonian Flow Through Multiparticle Systems, Journal of Applied Mechanics, ASME, 59, 431-437
Xu, Y., Zhu, J. (1992). On the Flow of Polymeric Liquids Through Porous Media, Advances in Mechanics, 22, 20-34
Zhu, J., Satish, M. G. (1992). Non-Newtonian Effects on the Drag of Creeping Flow Through Packed Beds, International Journal of Multiphase Flow, 18, 765-777

Authors

Abstract