Updated on 11-15-2006

       Curriculum Vitae

YOU-KUAN ZHANG

Business Address:              Department of Geoscience

University of Iowa, Iowa City, IA 52242

Phone:                                   319-335-1806        
E-mail:                                   you-kuan-zhang@uiowa.edu

 

I.   EDUCATIONAL AND PROFESSIONAL HISTORY

 

University of Arizona, Tucson          Ph.D.                      Hydrology                             1990
            Nanjing University, China                  M.S.                        Hydrogeology                      1982
            Jilin University, China                         B.S.                         Hydrogeology                      1978

 

2006-present       Professor                                             Department of Geoscience, University of Iowa
                              Secondary Professor                         Department of Civil & Env. Engineering,
                                                                                            University of Iowa
2006-present       Siyuan Adjunct Professor                Nanjing University, China
1997-2005             Associate Professor                          Department of Geoscience, University­ of Iowa
1997-present       Secondary Associate Professor      Department of Civil &­ Env. Engineering­
                                                                                  University of Iowa
1994-present       Research Engineer                             Iowa Institute of Hydraulic Research­
                                                                                            University of Iowa
2005-present       Adjunct Professor                             Nanjing University, China
2000-present       Adjunct Professor                             Hohai University, Nanjing, China
1997                      Visiting Professor                              Department of CEE, UC Berkeley
1993-1996             Assistant Professor                           Department of Geology, University­ of Iowa
1993-1996             Secondary Assistant Professor       Department of Civil &­ Env. Engineering­
                                                                                  University of Iowa
1990-1993             Research Assistant Professor         Conservation and Survey Division­
                                                                                            University of Nebraska,­ Lincoln
                             

 

II.   TEACHING AT THE UNIVERSITY OF IOWA
               

Sem. & year

Advisees

Course Taught

Selected ACE Summary Score

Unders

Grads

Course Number & Title

Students Enrolled

Course organization

Instructor preparation

Instructor availability

Grading was faired

Spring, 2006

 

5

12:184 *53:104 Applied Groundwater Modeling

11

6.00

6.00

5.93

5.83

Spring, 2006

 

5

12:008 Introduction to Environmental Sciences

398

5.02

5.43

5.10

5.07

Fall, 2005

6

5

12:166 Hydrogeology

13

5.86

5.94

5.94

5.86

Spring,
2005

6

5

12:153
Geocomputing

14

      5.64

5.75

5.58

5.50

Spring,      2005

6

5

12:188 Environmental Seminar

20

5.67

5.83

5.79

5.87

Fall, 2004

6

5

12:184 & 53:104 Groundwater Modeling

9

6.00

6.00

5.93

5.83

Spring, 2004

6

5

12:166 Hydrogeology

11

5.80

5.92

5.92

5.63

Spring, 2004

5

7

12:153 & 159:153 Geocomputing

16

5.88

5.88

6.00

5.92

Fall      2003

4

7

12:178 & 44:188 Applied Geostatistics

11

5.94

5.94

5.94

5.94

Summer 2003

5

4

12:199 Hydrogeologic Methods

6

6.00

6.00

6.00

6.00

Spring 2003

5

4

12:153 & 159:153 Geocomputing

20

5.38

5.85

5.57

5.78

Spring 2003

5

4

12:166 Hydrogeology

10

5.92

5.63

5.80

4.67

Fall      2002

15

4

12:188 Environmental Seminar

18

5.71

5.60

5.80

5.60

Fall      2002

15

4

12:184 & 53:104 Groundwater Modeling

6

5.56

6.00

5.83

5.17

Spring 2002

15

5

12:166 Hydrogeology

18

5.92

5.92

5.92

5.91

Spring 2002

15

5

12:153 & 159:153 Geocomputing

23

4.75

5.25

5.25

5.79

Fall
2001

15

4

On leave

 

 

 

 

 

Spring 2001

15

3

12:166 Hydrogeology

20

5.00

5.69

5.78

5.13

Fall  2000

15

3

12:188 Environmental Seminar

10

****

****

****

****

Fall      2000

15

3

12:178 & 44:188 Applied Geostatistics

9

5.40

 5.80

5.00

5.60

Fall    2000

15

3

12:119 Directed study

1

****

****

****

****

Summer
2000

15

3

Study abroad program: International water

17

****

****

****

****

Summer 2000

15

3

12:199 Hydrogeological methods

8

****

****

****

****

Spring 2000

15

3

12:184 & 53:104 Groundwater Modeling

6

5.88

5.88

6.00

5.67

Spring
2000

15

3

12:153 & 159:153 Geocomputing

25

****

****

****

****

Fall   1999

15

3

12:166 Hydrogeology

12

5.14

5.75

5.75

5.40

Fall      1999

15

4

12:188 Environmental Seminar

12

****

****

****

****

Summer 1999

15

3

12:184 & 53:104 Groundwater Modeling

6

5.50

6.00

6.00

5.90

Summer 1999

15

3

12:199 Hydrogeological methods

8

****

****

****

****

Spring 1999

15

3

12:166 Hydrogeology

15

5.86

5.86

5.94

5.86

Spring 1999

15

3

12:153 & 159:153 Geocomputing

25

****

****

****

****

**** no data available

2.   Student Supervised

       Degree objective           Student Name                       Years                                     Outcome               

  1. Postdocs

Yang, Xiaoying                    2005                                       

                                                Chi, John                               1993 – 1994                                           

  1. Ph.D candidates

Schilling, Keith                     2006 – present     
Lachhab, Ahmed                  2003 – 2006                            Graduated             
Li, Zhongwei                         2003 – 2006                            Graduated
Seo, Byong-min                    1998 – 2004                            Graduated
Lin, Jie                                1992 - 1997
  (works at the Research Institute of Basic Sciences,
   Chungnam National University, Korea)

  1. Master’s candidates

Kent, Andrew                       2003 – present                      Current
Stewart, Matt                        2005 – present                      Current
Weisbrod, Timothy             2003 – 2005                            Graduated
     (works for Iowa state government)
                                                                Zhou, Lei                               2001 – 2004                            Graduated
                                                                    (a Ph.D. student at University of Minnesota, Twin Cities)
Brown, Eric            2002 – 2004                            Graduated
    (works in Des Moines)
Schulmeyer, Pete                  1999 – 2002                            Graduated
   (works for an Environmental Consulting Company)
Wallace, Andi      1999 – 2001                            Graduated
   (works for Environment Resources Management, Indiana)
Shinall, Liz             1998 – 2000                            Graduated
   (Worked at Iowa Geological Survey Bureau)
Ribas, Scott          1998 – 2000                            Graduated
   (works in a State agency in Long Island)
Keeler, Ryan        1995 – 1997                            Graduated
   (works for Environment Resources Management, Chicago)
Lin, Jie                    1993 – 1994                            Graduated
  (works for an Environmental Consulting Company in Washington)

  1. Undergraduate students

Bayliss, Michael                   2003 – present                      Current
Clayton, Krysti                     2004 – present                      Current
Derynck, Lindsey                 2004 – present                      Current
Renley, Jessica                     2003 – present                      Current
Segreto, Mary                       2004 – present                      Current

Smith, Sean                           2005 – present                      Current
(Additional more than 20 former ES students supervised but not  listed  )

  1. Committee Member for Current Graduate Students

 

i.   Ph.D. candidates
De, Malini                              Geography
Goshit, Sunday                     Geography
Liu, Xiaoyi                             Geoscience
Tiwari, Chetan                      Geography
Zeng, Yu                                Geography

                       ii.   M.S. candidates
                                                                Knight, Charles

  1. Committee Member for Past Graduate Students

 

    1. Ph.D. candidates

                                Anagnostou, Emmanouil                          CEE
                                Ansar, Matahel                                           CEE
                                Banerjee, Rudy                                           Geography
                                Chen, Grace                                                 Geography
                                Chen, Li-Chuan                                           CEE
                                Dawson, John                                             Geology
Emerson, Charles                                        Geography
Lovanh, Nanh                                             CEE
                                Nelson, Brian                                              CEE.
                                Sayeeduzzaman, Mohammad                   Geology
                                Young, Bryan                                              CEE

    1. M.S. candidates

Craig, Andy                                                 CEE
                                Hagen, Brad                                                CEE
                                Lachhab, Ahmed                                        CEE
                                Langel, Rick                                                 Geology
Yang, Xiaoying                                           Geography
                               

  1. Other contributions to instructional programs

I served as an instructor for the “International Perspectives on Water Resources Planning”, a study-abroad program in 2000 and led a group of 20 graduate students from UI and other universities in U.S. and Europe to China for a period of two weeks.

     

III.  SCHOLARSHIP
  1. Publications

      * = major contribution;
    ** = secondary contribution;
  *** = equal contribution;
**** = minor contribution;
         + = co-author with an advisee.

  1. Refereed

 

   *Zhang, Y.-K. and Z. Li, Effect of temporally correlated recharge on fractal fluctuations of groundwater levels, Water Resour. Res., 42, W10412, doi:10.1029/2005WR004828, 2006.
   *Zhang, Y.-K, Z. Li., X. Yang, and K. Schilling, Fractal fluctuation of groundwater levels: Observation, Analyses and Simulations.  Publication of the International Professionals for Advancement of Chinese Earth Sciences, Vol. 3: Environmental Geosciences, in press.
   ***Schilling, K.,  Z. Li , and Y.-K. Zhang, Groundwater-surface water interaction in the riparian zone of an incised channel, Walnut Creek, Iowa, J. Hydrol., 327, 140-150, doi:10.1016/j.jhydrol.2005.11.014, 2006.
 *Zhang, Y.-K. and K. Schilling, Increasing  Streamflow and Baseflow In Mississippi River since 1940’s:  Effect of Land Use Change, J. Hydrol., 324, 412-422, doi:10.1016/j.jhydrol.2005.09.033, 2006.
     *Zhang, Y.-K. and K. Schilling, Effects of land cover on water table, soil moisture, evapotranspiration, and groundwater recharge: a field observation and analysis, J. Hydrol., 319, 328-338, doi:10.1016/j.jhydrol.2005.06.044, 2006.
  *+Li, Z. Y.-K. Zhang, K. Schilling, and M. Skopec, Cokriging Estimation of Daily Suspended Sediment Loads, J. Hydrol.,  327, 389-398, doi:10.1016/j.jhydrol.2005.11.028, 2006.
*Zhang, Y.-K. and K. Schilling, Temporal Variations and Scaling of Streamflow and Baseflow and their Nitrate-Nitrogen Concentrations and Loads, Adv. in Water Resour.,  28, p. 701-719, doi:10:1016/j.advwatres.2004.12.014, 2005.
  *Zhang, Y.-K. and Z. Li, Temporal scaling of hydraulic head fluctuations: Nonstationary spectral analyses and numerical simulations, Water Resour. Res., 41, W07031, doi:10.1029/2004WR003797, 2005.
  *Zhang, Y.-K. and K. Schilling, Temporal scaling of hydraulic head and river baseflow and its implication for groundwater recharge, Water Resour. Res., 40, W03504, doi:10.1029/2003WR002094, 2004.
  *Zhang, Y.-K. and B. Seo, Stochastic analysis and Monte Carlo simulations of non-ergodic solute transport in three-dimensional heterogeneous and statistically anisotropic aquifers, Water Resour. Res., 40, W05103, doi:10.1029/2003WR002871, 2004.
  *Zhang, Y.-K. and B. Seo, Numerical simulations of non-ergodic solute transport in three-dimensional heterogeneous porous media, Stochastic Environmental Research and Risk Assessment, 18(3), 205-215, doi:10.1007/s00477-004—178-4, 2004.
*Zhang, Y.-K. and D. Zhang, Applications of Stochastic Methods in Subsurface Hydrology, An Introduction to a Forum in Stochastic Environmental Research and Risk Assessment, Stoch Envir Res and Risk Ass, 18: 265, DOI 10.1007/s00477-004-0190-8, 2004.
**Schilling, K.E., and Y.-K. Zhang, Baseflow contribution to Nitrate-Nitrogen Export from a large, Agricultural Watershed, USA, J. Hydrol., 295, 305-316, doi:10:1016/j.jhydrol.2004.03.010, 2004.
   *Zhang, Y.-K. and K. Schilling, Impact of Vegetation on Main Hydrological Processes: A Field Study and Its Implication for Water Quality, Advance in Earth Sciences, 19(3), 422-428, Article ID: 1001-8166(2004)03-0422-07, 2004.
**Schilling, K., Y.-K. Zhang, and P. Drobney, Water table fluctuations near an incised stream, Walnut Creek, Iowa, J. Hydrol., 286,  p. 236-248, 2004.
   *Zhang, Y.-K., Non-ergodic solute transport in physically and chemically heterogeneous porous media, Water Resour. Res., 39(7), 1197, doi:10.1029/2003WR002116, 2003.
   *Zhang, Y.-K and R.C. Heathcote., An improved method for estimation of biodegradation rate with field data, Groundwater Monitoring and Remediation, 23(3), p.112-117, 2003.
   *Zhang, Y.-K. and V. D. Federico, Letter to the editor: Comments on the paper ‘Comparison of observations from a laboratory model with stochastic theory: initial analysis of hydraulic and tracer experiments’, by S.E. Silliman and L. Zheng, Transport in Porous Media, 52: 111-115, 2003.
***Wang, L. and Y.-K. Zhang, An unconditionally-stable explicit scheme for groundwater flow equations, Computational Methods in Water Resources, XIV, p. 145-152, 2002.
  *+Wallace, A. and Y.-K. Zhang, Calibration of a Groundwater Flow Model for Spatially- and Temporally-varied Recharge to a Fractured-Karst Aquifer, Acta Universitatis Carolinae-Geologica, 46: 286-289, 2002.
  *Zhang, Y.-K., and V. D. Federico, Nonergodic solute transport in heterogeneous porous media: Influence of multiscale structure, in Zhang, D., and Winter, C.L., eds., Theory, Modeling, and Field Investigation in Hydrogeology: A Special Volume in Honor of Shlomo P. Neuman’s 60th Birthday: Boulder, Colorado, Geological Society of America Special Paper 348, p. 61–72, 2000.
  *Zhang, Y.-K., B. Seo, and V. D. Federico, Stochastic analysis and simulation of transport of a Contaminant plume in nonuniform groundwater flow, Computational Methods in Water Resources, XIII, 389-395, 2000.
***Federico, V.D. and Y.-K. Zhang, Solute transport in heterogeneous porous media with long-range correlations, Water Resour. Res., 35(10), 3185-3192, 1999.
   *Zhang, Y.-K. and V.D. Federico, Solute transport in three-dimensional heterogeneous media with a Gaussian covariance of log hydraulic conductivity, Water Resour. Res., 34(8), 1929-1934, 1998.
   *Zhang, Y.-K. and J. Lin, Numerical simulations of transport of non­ergodic plumes in     heterogeneous aquifers, Stochastic Hydrology and Hydraulics,  Vol. 12, No. 2, 117-139,         1998.
   *Zhang, Y.-K.,  A comment on “Linear equilibrium adsorbing solute transport­ in physically and
               chemically heterogeneous porous formations, 1. Analytical solutions” by Alberto Bellin
               et al., Water­ Resour. Res., 34(12), 3701-3704, 1998.
   *Zhang, Y.-K., On the Variances of Second Spatial Moments of a Non­Ergodic Plume in Heterogeneous Aquifers,  Water Resour. Res., 33(8), 1893-1900, 1997.
   *Zhang, Y.-K. and D. Zhang, Time-Dependent Dispersion of Non-Ergodic­ Plumes in Two-Dimensional Heterogeneous Porous Media, Journal of Hydrologic­ Engineering, Vol.2, No.2, 91-94, 1997.
   *Zhang, Y.-K., D. Zhang, and J. Lin, Non-Ergodic Solute Transport in­ Three-Dimensional Heterogeneous Isotropic Aquifers, Water Resources­ Res., 32(9), 2955-2963, 1996.
   *Zhang, Y.-K., Modeling of a Flowing-Well Test in a Fractured-Karst­ Aquifer with a Double-Porosity odel, Computational Methods in Water­ Resources, XI, Vol. I, 295-302, 1996.
   *Zhang, D. and Y.-K. Zhang, Higher-Order Velocity Covariance and Its­ Effect on Advective Transport in Three-Dimensional Heterogeneous Anisotropic­ Media, Computational Methods in Water Resources , XI, Vol. I, 689-697, 1996.
   *Zhang, Y.-K., E.-W. Bai, R. Libra, R. Rowden, and H. Liu, Simulation of­ Spring Discharge from a Limestone Aquifer in Iowa, USA, Hydrogeology­ Journal , v.4, no.4, 41-54, 1995.
   *Zhang, Y.-K. and J. Chi, An Evaluation of Nonlinearity in Spatial Second­ Moments of Ensemble Mean Concentration in Heterogeneous Media, Water­ Resour. Res., 31(12), 2991-3005, 1995.
   **Gosselin, D.C, J.F. Ayers, and Y.-K. Zhang, Modeling Concentration­ Variations in High-Capacity Wells: Implications for Groundwater Sampling,­ Water Resources Bulletin , Vol.30, No.4, 613-622, 1994.
***Neuman, S.P., O. Levin, S. Orr, E. Paleologos, D. Zhang, and Y.-K.­ Zhang, Nonlocal Representations of Subsurface Flow and Transport by­ Conditional Moments, Computational Stochastic Mechanics, ed. by A. H.-D.­ Cheng and C.Y. Yang, Computational Mechanics Publisher, Sothhamton, the United­ Kingdom, 451-473, 1993.
     *Neuman, S.P. and Y.-K. Zhang, A Quasi-linear Theory of Non-Fickian and­ Fickian Subsurface Dispersion: 1. Theoretical Analysis with Application to­ Isotropic Media, Water Resour. Res. , 26(5), 887-902, 1990.
     *Zhang, Y.-K. and S.P. Neuman, A Quasi-linear Theory of Non-Fickian and­ Fickian Subsurface Dispersion: 2. Application to Anisotropic Media and the­ Borden Site,  Water Resour. Res. , 26(5), 903-913, 1990.
 ***Neuman, S.P., Y.-K. Zhang, and O. Levin, Quasi-linear Analysis,­ Universal Scaling, and Lagrangian Simulation of Dispersion in Complex Geologic­ Media, Dynamics of Fluids in Hierarchical Porous Formations, ed. by John­ Cushman, Academic Press, 349-391, 1990.
     *Xue, Y. and Y.-K. Zhang, Application of the Dural-Porosity Model and­ Ritz Finite Element Method in Mine Drainage Estimation, Hydrogeology and­ Engineering Geology , No.3, 33-39, 1984.
     *Zhang, Y.-K, Double-Porosity Model and Finite Element Solution to Flow­ in Fractured-Karst Aquifers, Engineering Prospecting , No.4, 57-68, 1983.
 ***Zhu, X. X. Qian, and Y.-K. Zhang, Estimation of Infiltration Coefficients in­ Fractured Rocks, Engineering Prospecting, No.3, 1982.
   

   *Zhang, Y.-K. and R.C. Heathcote, Modeling the Fate and Transport of a Contaminant Plume in Sioux City, 8th International Petroleum Engineering Conference, 2001.
   *Zhang, Y.-K. and B. Seo, Monte Carlo Simulations of Contaminant Plumes in Three-Dimensional Heterogeneous Porous Media, MODFLOW 2001 AND OTHER MODELING ODYSSEYS, Proceeding of An International Ground Water Modeling Conference and Workshops, 2001.
*+Shinall, L.A., Y.-K. Zhang, and M.J. Gannon, Effect of Heterogeneity on Nitrate Concentration in a Shallow Aquifer in Sioux County, Iowa, MODFLOW 2001 AND OTHER MODELING ODYSSEYS, Proceeding of An International Ground Water Modeling Conference and Workshops, 2001.
**Lovanh, N., Y.-K. Zhang, and P.J.J. Alvarez, Statistics and effect of first-order biodegradation rate coefficient on intrinsic remediation of groundwater contamination, the proceeding of the 6th International Petroleum Environmental Conference, October, 1999.
  *Zhang, Y.-K. and J. Lin, Monte Carlo simulation of non-ergodic reactive solute transport in random porous media, GQ’98: International Conference and Special Workshops on                         GROUNDWATER QUALITY: Remediation and Protection, 1998.          
  *Zhang, Y.-K. and R. Keeler, Modeling groundwater flow with MODFLOW  in a fractured-karst aquifer in the Big Spring basin, Iowa,  MODFLOW’98 International Conference, 1998.
  *Zhang, Y.-K. and J. Lin, Monte Carlo Simulations of Non-Ergodic Solute Transport in Random Porous Media, Proceedings of the 27th IAHR Congress, ­ 240-245, 1997.
  *Zhang, Y.-K. and E.-W. Bai, Simulation of Spring Discharge from a­ Limestone Aquifer in Northeastern Iowa with an Identification Scheme,­ Calibration and Reliability in Groundwater Modeling, IAHS Publ. no. 237,­ 31-39, 1996.
  *Zhang, Y.-K. and J. Lin, Groundwater Monitoring Network Design with­ Geostatistics and Monte Carlo Simulation, Calibration and Reliability in­ Groundwater Modeling, ModelCARE 96, 361-370, 1996.
**Sibray, S.S. and Y.-K. Zhang, Three-Dimensional Modeling of Hydraulic­ Behaviour of a Highly Conductive Secondary Permeability Zone in the Brule­ Formation, Proceedings of 1994 Groundwater Modeling Conference, Fort Collins,­ Colorado, 445-452, 1994.

 

    Zhang, Y.-K. Review of the book: “Stochastic Methods for Flow in Porous Media”  by Dongxiao Zhang, Vadose Zone Journal, in preparation, 2006.
    Zhang, Y.-K. Review of the book: “Applied Stochastic Hydrogeologyby Yoram Rubin, EOS, Vol. 84, No. 43, 2003.
    Zhang, Y.-K. Review on the book: "Inverse Problems in Groundwater Modeling" by Ne-Zheng Sun, Bulletin of the American Meteorological Society,­ July, 1995.

 

    Zhang, Y.-K. and R. Heathcote, Guidelines for numerical modelling in tier 3 assessments and other corrective actions, Technical Report submitted to Iowa Comprehensive Petroleum Undergrround Storage Tank Fund Board, p.79, 2001.
    Zhang, Y.-K., B. Seo, N. Lovanh2, and P. J.J. Alvarez, Evaluation of computer software packages for RBCA tier-3 analysis, A technical report submitted to Iowa Comprehensive Petroleum Underground Storage Tank Fund Board, 2001.
    Lovanh, N., Y.-K. Zhang, R.C. Heathcote, and P.J.J. Alvarez, Guidelines to Determine Site-Specific Parameters for Modeling the Fate and Transport of Monoaromatic Hydrocarbons in Contaminated Aquifers, A technical report submitted to Iowa Comprehensive Petroleum Underground Storage Tank Fund Board, 1999.
    Alvarez, P., Y.-K. Zhang, and N. Lovanh, The Evaluation of the Iowa Tier-2 Model Based on the Benzene Plume Dimensions and the Literature Search, Final Report, pp. 147, 1998.

 

        
    Li, Z. and Y.-K. Zhang, Dynamic Sediment Modeling: A Case Study at Walnut Creek, Iowa, American Geophysical Union 2006 Fall Meeting, San Francisco, Dec. 11 – 15, 2006.
    Schilling, K. and Y.-K. Zhang, Effects of LULCC on Streamflow and Nitrate-N Concentrations in Iowa and the Mississippi River Basin, American Geophysical Union 2006 Fall Meeting, San Francisco, Dec. 11 – 15, 2006.
    Zhang, Y.-K., Increasing Mississippi River Flow since 1940s: Climate Change or Human Intervention? Thirty-four Congress of International Association of Hydrogeologists, Bejing, China, Oct. 9 – 13, 2006.
    Zhang, Y.-K. and K. Schilling, A field observation and analysis of effects of land cover on water table and groundwater recharge, Western Pacific Geophysics Meeting, Beijing, China, 24-27 July 24 – 27, 2006.
    Zhang, Y.-K., Temporal Variations and Scaling of Water Table in Aquifers, 2006 International Symposium on Groundwater Resources and Environment, organized by the Institute of Geology and Geophysics, China Academy of Sciences, Beijing, China, July 22 – 23, 2006.
    Zhang, Y.-K. and Z. Li, Fractal fluctuations of groundwater levels: Observation, interpretation, and implication, American Geophysical Union 2005 Fall Meeting, San Francisco, Dec. 5 – 9, 2005.
    Li, Z. and Y.-K. Zhang, Fractal fluctuations of groundwater levels: Detrended fuctuation analyses, American Geophysical Union 2005 Fall Meeting, San Francisco, Dec. 5 – 9, 2005.
   Yang, X., Z. Li, and Y.-K. Zhang, Y.-K, Fractal fluctuations of groundwater levels: Numerical simulations, American Geophysical Union 2005 Fall Meeting, San Francisco, Dec. 5 – 9, 2005.
    Zhang, Y.-K., Increasing Mississippi River Flow since 1940s: Climate Change or Human Intervention? The Fifth annual meeting of the International Professionals for Advancement of Chinese Earth Sciences, Guangzhou, China, June 20 - 22, 2005.
    Zhang, Y.-K. and Z. Li, Temporal variations of groundwater levels and their scaling properties, A Workshop on Challenges and Opportunities in Chinese Groundwater Science, China University of Geosciences, Beijing, China, June 16 - 17, 2005.
    Zhang, Y-K., Comparison of Groundwater Research in USA and China, A Workshop on Challenges and Opportunities in Chinese Groundwater Science, China University of Geosciences, Beijing, China, June 16 - 17, 2005.
    Zhang, Y.-K., Recent Advances in Groundwater Science, the Fifth annual meeting of the International Professionals for Advancement of Chinese Earth Sciences, Guangzhou, China, June 20 - 22, 2005.
   Li, Z. and Y.-K. Zhang, Stochastic Analysis and Numerical Simulations of Hydraulic Head and Baseflow in Heterogeneous Media under Spatial-Temporal Random Recharge, American Geophysical Union 2004 Fall Meeting, San Francisco, Dec. 13-17, 2004.
   Li, Z. and Y.-K. Zhang, Dynamic Sediment Modeling in Iowa Streams and Rivers: A Case Study at Walnut Creek, American Geophysical Union 2004 Fall Meeting, San Francisco, Dec. 13-17, 2004.
   Zhang, Y-K., Ecohydrology: A rejuvenated discipline with new perspectives, the International Conference and Workshop on Frontiers of Earth Sciences: Earth, Environment, and Human Impacts, Chengdu, June, 2004.
   Zhang, Y-K., Stochastic Surface Hydrology: from Theory to Applications, the International Conference and Workshop on Frontiers of Earth Sciences: Earth, Environment, and Human Impacts, Chengdu, June, 2004.
   Zhang, Y-K., Numerical Simulations of Flow and Transport in Heterogeneous Porous Media, the International Workshop on Applications of Computational Methods in Earth Sciences, Beijing, June, 2004.
   Li, Z. and Y.-K. Zhang, Temporal Scaling and Numerical Simulations of  The Hydraulic Head and River Baseflow, American Geophysical Union 2001 Fall Meeting, San Francisco, Dec. 8 - 12, 2003.
   Brown, E. and Y.-K. Zhang, Modeling Groundwater Flow and Contaminant Transport Around Two Lagoons in Eastern Iowa with Analytical and Numerical Models, MODFLOW and More 2003, Denver, Sept. 17 -20, 2003
   Zhang, Y.-K. Stochastic analysis and Monte Carlo simulations of contaminant plumes in threedimensional heterogeneous porous media; The Fourth World Chinese  conferenceon Geological Sciences, Nanjing, China, May 22–23, 2002.
   Zhang, Y.-K. and B. Seo, Three-Dimensional Monte Carlo Simulations of Movement of a Contaminant Plume in Heterogeneous Aquifers, American Geophysical Union 2001 Fall Meeting, San Francisco, Dec. 6- 10, 2002.
   Wang, L. and Zhang, Y.-K., An unconditionally-stable explicit scheme for groundwater flow equations, Computational Methods in Water Resources, XIV,  2002.
   Wallace, A. and Zhang, Y.-K., Calibration of a Groundwater Flow Model for Spatially- and Temporally-varied Recharge to a Fractured-Karst Aquifer, International conference on ModelCare, June 17-20, Czech Republic 2002.
   Bradley, A. A., G. J. Ciach, W. N. Eichinger, K. C. Hornbuckle, W. A. Illman, W. F. Krajewski*, A. Kruger, V. C. Patel, F. H. Weirich, Y. K. Zhang, Iowa Hydrologic and Environmental Validation Site: A Proposal to the Community, Eos Trans. AGU, H22A-05.
   Wallace, A. and Y.-K. Zhang, Modeling of Groundwater Flow in a Karst Aquifer in Northeast Iowa, American Geophysical Union 2001 Fall Meeting, San Francisco, Dec. 10-14, 2001.
   Zhang, Y.-K. and B. Seo, Monte Carlo Simulations of Contaminant Plumes in Three-Dimensional Heterogeneous Porous Media, MODFLOW 2001 AND OTHER MODELING ODYSSEYS, Abstracts of An International Ground Water Modeling Conference and Workshops, 2001.
   Wallace, A. and Y.-K. Zhang, Modeling of Groundwater Flow in a Karst Aquifer in Northeast Iowa, American Geophysical Union 2001 Fall Meeting, San Francisco, Dec. 10-14, 2001.
   Shinall, L.A., Y.-K. Zhang, and M.J. Gannon, Effect of Heterogeneity on Nitrate Concentration in a Shallow Aquifer in Sioux County, Iowa, MODFLOW 2001 AND OTHER MODELING ODYSSEYS, Abstracts of An International Ground Water Modeling Conference and Workshops, 2001.
   Zhang, Y.-K. and B. Seo, Is the Borden plume ergodic? American­ Geophysical Union 2000  Fall Meeting, San Francisco, Dec. 15-19, 2000.
   DeChoudens, V., Y.-K. Zhang, and L. A. Gonzalez, Modeling of Three-Dimensional Groundwater Flow in the Kathmandu Valley, Nepal, American­ Geophysical Union 2000  Fall Meeting, San Francisco, Dec. 15-19, 2000.
   Shinall, L., J.M. Gannon, and Y.K. Zhang, Hydrogeology and Wellhead Protection Area Delineations: Rock Valley, Sioux County, Iowa, Geological Society of American­ 2000 Annual Meeting, Reno, Nevada, Nov. 13-17, 2000.
   Zhang, Y.-K. and V. di Federico, Non-Ergodic Solute Transport in Heterogeneous Porous Media with a Multi-Scale Structure, American­ Geophysical Union 1999 Fall Meeting, San Francisco, Dec. 13-17, 1999.
   Shinall, L., J.M. Gannon, and Y.K. Zhang, Hydrogeology and Wellhead Protection Area Delineations: Rock Valley, Sioux County, Iowa, American­ Geophysical Union 1999 Fall Meeting, San Francisco, Dec.13-17, 1999.
   Lovanh, N., R. Keller, Y.K. Zhang, and P. Alvarez, The Effect of Biodegradation Rate Coefficients on Intrinsic Remediation: Evaluation of Field Data, The 8th Biocatalysis and Bioprecessing Conference, October 25-27, 1999.
   Lovanh, N., Y.-K. Zhang, and P. Alvarez, Statistics and effect of first-order biodegradation rate coefficient on intrinsic remediation of groundwater contamination, The 6th International Petroleum Environmental Conference, October, 1999
   Zhang, Y.-K., V. di Federico, and B.-M. Seo, Non-Ergodic Solute Transport in Nonuniform Groundwater Flow, American­ Geophysical Union 1998 Fall Meeting, San Francisco, Dec. 6-10, 1998.
   Zhang, Y.-K. and Federico, V.D.,  Non-Ergodic Solute Transport in Heterogeneous Porous: Media: Influence of Multiscale Structure, Shlomo Neuman’s 60th birthday mposium,  Tucson, AZ, Oct., 1998.
   Zhang, Y.-K. and R. Keeler, Hydrogeology and Groundwater Modeling of the Big Spring Basin, Iowa, USA, 1998 Western Pacific Geophysics Meeting, Taipei, Taiwan, July 21-24, 1998
   Zhang, Y.-K. and J. Lin, Monte Carlo Simulations of Non-Ergodic Solute­ Transport in Physically and Chemically Heterogeneous Aquifers, American­ Geophysical Union 1997 Fall Meeting, San Francisco, Dec. 8-12, 1997.
   Federico, V.D. and Y.-K. Zhang, Solute Transport in Heterogeneous­ Porous Media with Long-range Correlations, American Geophysical Union 1997­ Fall Meeting, San Francisco, Dec. 8-12, 1997.
   Zhang, Y.-K. and J. Lin, Stochastic Analysis and Simulation of Solute­ Transport in Physically and Chemically Heterogeneous Aquifers, 42nd Annual­ Midwest Groundwater Conference, Coralville, Iowa, Oct. 22-24, 1997.
   Zhang, Y.-K. and J. Lin, Monte Carlo Simulations of Non-Ergodic Solute ­Transport in Random Porous Media, 27th IAHR Congress, Aug., 1997.
   Keeler, R. and Y.-K. Zhang, Modeling of Groundwater Flow in the Big­ Spring Basin, Clayton County, Iowa, 42nd Annual Midwest Groundwater­ Conference, Coralville, Iowa, Oct. 22-24, 1997.
   Zhang, Y.-K. and J. Lin, Stochastic Analysis and Simulation of Solute­ Transport in Physically and Chemically Heterogeneous Aquifers, 1997 North­ Central GSA Abstracts with Programs, 1997.
   Keeler, R. and Y.-K. Zhang, Modeling of Groundwater Flow in a­ Fractured-Karst Aquifer in the Big Spring Basin, Iowa, 1997 North-Central GSA­ Abstracts with Programs.
   Zhang, Y.-K. and J. Lin, Numerical Simulations of Nonergodic Solute­ Transport in Heterogeneous Aquifers, EOS, Vol.77, No. 46, pp. F263, 1996.
   Zhang, Y.-K., Scale Effect and Stochastic Theories of Groundwater­ Pollution in Heterogeneous Aquifers, Abstracts of 30th International­ Geological Congress, Vol. 3, p.276, 1996
   Zhang, Y.-K. and D. Zhang, A Negative Dispersivity: Can a Plume­ Shrink?, EOS, Nov. 7, pp. F180, 1995.
   Zhang, Y.-K., An Evaluation of Nonlinearity in the Second Spatial­ Moments of the Ensemble Mean Concentration in Aquifers, AGU Fall Meeting,­ 1994.
   Zhang, Y.-K., Application of the Double-Porosity Model and Finite­ Element Method to a Fractured-Karst Aquifer in Makeng, China, Western Pacific­ Geophysics Meeting, 1994.
   Zhang, Y.-K. and M. Shao, A Simple Method for Determining Unsaturated­ Hydraulic Conductivity, AGU 1993 Fall Meeting.
   Neuman, S.P. and Y.-K. Zhang, Eulerian-Lagrangian Theory of Transport­ in Space-Time Nonstationary of Velocity Fields, AGU 1992 Fall Meeting.
   Ayers, J.F, Y.-K. Zhang, and D.C. Gosselin, Water-Sampling Regime­ Around High-Capacity Wells: An Analysis, GSA 1991 Annual Meeting.
   Zhang, Y.-K., Time-Dependent Nonlocal dispersion in Unsaturated Media­ with Statistically Anisotropic Hydraulic Conductivities, AGU 1991 Fall­ Meeting.
   Zhang, Y.-K., Time-Dependent Nonlocal dispersion in the Vadose Zone,­ Workshop on Characterization of Transport Phenomena in the Vadose Zone,­ sponsored by the Soil Science Society of America and AGU, 1991.
   Zhang, Y.-K., Macrodispersion in the Vadose Zone; Statistically­ Isotropic Media, AGU 1990 Fall Meeting.

 

a. External

2005-2008  PI,  A study of temporal variations of groundwater levels, recharge, and baseflow: Does scaling exist in these processes?  $180,000.00, NSF.
2005            Modeling Sediment Transport in Iowa Rivers, $9,500.00, awarded by the                                  Iowa Department of Natural Resources. in transaction.
2003-2004    PI, Modeling Sediment Transport in Iowa Rivers, $16,000.00, awarded by the Iowa Department of Natural Resources.
1999-2001     Co-PI, Iowa RBCA Tier-3 Model Selection and Parameter Estimation, $103,755.00, awarded by the Iowa Comprehensive Petroleum Underground Storage Tank Fund Board, the state of Iowa.
1998              Co-PI, The Evaluation of the Iowa Tier-2 Model Based on the Benzene Plume Dimensions and the Literature Search, $17,080 awarded by Iowa State Government.
1992-1995     PI, Stochastic Analysis and­ Simulation of Time-Dependent Solute Transport in Soils, $168,000.00 awarded by­ U.S. Department of Agriculture.
1992-1995     Co-PI, Evaluation of Irrigation­ Wells as Sampling Mechanisms, $122,102.00 awarded by U.S. Department of­ Agriculture.
1992-1994   PI, Effect of Local Anisotropy of­ Hydraulic Conductivities on  Non-local Dispersion in Aquifers, $25,500.00­ awarded by U.S. Geological Survey.
1991-1993     Co-PI, Performance Assessment of the Low-Level­ Radioactive Nuclear Waste Disposal Facility at Butte, Nebraska, $30,000.00­ provided by Nebraska Low-Level Waste Disposal Program.

b. Internal

2005              PI, Increasing Streamflow and Baseflow in the Mississippi River Basin since 1940s: Effect of Climate or Land Use Change, CGRER Seed Grant, $24,386.00, the University of Iowa.
2004               PI, Carver Scientific Research Initiative, $14,752.00, the University of Iowa.
2004              PI, The Obermann Center for Advanced Studies Interdisciplinary Research Grant, Summer, 2004, $12,000.00, the University of Iowa.
2002               PI, Proposal to Computerize Room 231, TH for Computer Fee Funds, $45,500.00 awarded by College of Liberal Arts & Sciences, the University of Iowa.
1995              PI, Modeling Groundwater­ contamination by Agricultural Chemicals at Big Spring, Iowa,­ $10,000.00 awarded by the Obermann Center for Advanced Studies­ Interdisciplinary Research Grant, University of Iowa.
1997              PI, The Obermann Center for Advanced Studies Interdisciplinary Research Grant, Summer, 1997, $10,000.00, the University of Iowa.

 

 

 

 

  
*+Li, Z. and Y.-K. Zhang, Quantifying fractal dynamics of groundwater systems with detrended fluctuation analysis, submitted to J. Hydrol. in revision.
  Jin, X.,  L. Wan, Y.-K. Zhang, Z. Zue, and Y. Yin, A Study of Relationship between Vegetation Growth and Groundwater in Yinchuan Plain, China, submitted to Frontier in Earth Sciences, Nov., 2006
  Schilling, K.,  M. Tomer, Y-K Zhang, T. Weisbrod, P. Jacobson, and C. Cambardella, Hydrogeologic Controls on Nitrate Transport  in a Small Agricultural Catchment, Iowa, in review.
 **Lachhab, A., Y.-K. Zhang, and M. V.I. Muste, Three dimansional particle tracking in matched-index-refraction homogeneous and heterogeneous porous media, submitted to Experiments in Fluids, in review
   *+Li, Z. and Y.-K. Zhang, Multiscale Entropy Analyses of Mississippi River Flow, Geophysical Research Letters, in review.
   Jin, X.M., L. Wan, M. Schaepman, and Y.-K. Zhang, Impact of Economic Growth on Vegetation Cover in China Based on GIMMS NDVI, Submitted to International Journal  of Remote Sensing, May, 2006

 

2007 – 2010     Collaborative Research: An Integrated Study of Effects of Land Use and Land Cover Change on Watershed Hydrology for Sustainable Environment, Submitted to NSF BES-Engineering program, $358,780., September 15, 2006.

 

IV.   SERVICE
 

 

 

c.   Reviewer for Journals and State and Federal Agencies