Marios Sophocleous' Complete Publications by Year

*Sophocleous, M.A., 2004. Groundwater recharge and the water budgets of the Kansas High Plains and related aquifers. Kansas Geological Survey Bulletin 249, 102 p. [Online]

*Macpherson, G.L. and Sophocleous, M.A., 2004. Fast groundwater mixing in an unconfined alluvial aquifer: The Konza Prairie LTER site, Northeastern Kansas. Journal of Hydrology, 286(1-4): 271-299. [PDF]

*Sophocleous, M.A., 2004. Global and regional water availability and demand: Prospects for the future. Natural Resources Research 13(2): 61-75. [PDF]

*Sophocleous, M.A. and Devlin, J.F., 2004. Discussion of "The Water Budget Myth Revisited: Why Hydrogeologists Model" by John D. Bredehoeft. Ground Water, 42(4): 618. [PDF]

*Sophocleous, M.A., 2004. Groundwater recharge and sustainability in the High Plains aquifer in Kansas, USA. Hydrogeology Journal, In press.

*Devlin, J.F., and Sophocleous, M.A., 2004. The persistence of the water budget myth and its relationship to sustainability. Hydrogeology Journal, In press

*Sophocleous, M.A., 2004. Climate change: Why should water professionals care? Ground Water, 42(5):637. [PDF]

*Ragone, S. E., and Sophocleous, M.A., 2004. Perceptions and realities about groundwater and future water availability. New World Water, In press.

Sophocleous, M.A., 2004. Environmental consequences of groundwater overexploitation. Water and the Future of Kansas Conference Abstract, Lawrence, KS, March 11, 2004.

Sophocleous, M.A., 2004. Water resources sustainability and its application in Kansas. 57th Canadian Geotechnical Conference and 5th joint CGS-IAH Conference, Quebec City, Canada.

Sophocleous, M.A., 2004. Groundwater recharge and sustainability in the High Plains aquifer: Prospects for the future. Geological Society of America 2004 Annual Meeting, Denver, Colorado.

Sophocleous, M.A., 2004. Hydroecological principles for sustainable water resources management. 2004 NGWA Ground Water Expo, Las Vegas, Nevada.

*Sophocleous, M.A., 2003. Environmental implications of intensive groundwater use with special regard to streams and wetlands. In: E. Custodio and R. Llamas (eds.), Groundwater Intensive Use: Challenges and Opportunities. A.A. Balkema Publishers, Lisse, The Netherlands, p. 93-112. [PDF]

*Sophocleous, M.A., 2003. Groundwater Recharge, in Groundwater, edited by Luis Silveira and E. J. Usunoff, in Encyclopedia of Life Support Systems (EOLSS), Developed under the auspices of the UNESCO, Eolss Publishers, Oxford, UK, (http://www.eolss.net/), 43 p.

*Sophocleous, M.A., 2003. Mapping groundwater levels. In: Stewart, B.A. and Howell, T. (eds.), Encyclopedia of Water Science. Marcel Dekker, p. 336-341. DOI: 10.1081/E-EWS 120010085. [PDF]

Sophocleous, M.A., 2003. A fresh look at recharge rates of the Ogallala aquifer. 20th Annual Water and the Future of Kansas Conference Proceedings "The Challenge of Abundant Clean Water," Manhattan, KS, March 11, 2003, p. 5.

Woods, J.J., and Sophocleous, M.A., 2003. Historic, current, and projected depletion of the Ogallala aquifer in southwestern Kansas. Kansas Academy of Science, 135th Annual Meeting Proceedings, Pittsburg State University, Pittsburg, KS, April 11-12, 2003.

Sophocleous, M.A., and Pradhananga, A., 2003. County-by-county and districtwide tabulated recharge values and related statistics for the Kansas Groundwater Management District regions based on KGS Bulletins and other publications (5 EXCEL spreadsheets), Kansas Geological Survey, Open-file Report 2003-11, 22 p.

*Sophocleous, M.A., and Buchanan, R.C., 2003. Ground-water recharge in Kansas. Kansas Geological Survey, Public Information Circular 22, 6 p. [Online]

Sophocleous, M.A., 2003. Groundwater recharge and the water budgets of the Kansas High Plains and related aquifers. Kansas Water Resources Research Institute, Report No. KWRI02-02, 142 p.

Sophocleous, M.A., 2003. Global and regional water availability and demand. 2003 AGWSE Annual Meeting and Conference, Abstract Book, NGWA Interest Group Session "Ground Water Availability: What are the issues and how do we address them?," p. 71.

*McMahon, P.B., Dennehy, K.F., Michel, R.L., Sophocleous, M.A., Ellett, K.M., and Hurlbut, D.B., 2003. Water movement through thick unsaturated zones overlying the Central High Plains Aquifer, Southwestern Kansas, 2000-2001. U.S. Geological Survey, Water-Resources Investigations Report 03-4171, 32 p.

Sophocleous, M.A., 2003. Water resources sustainability and its application in Kansas. Arizona Hydrological Society 16th Annual Symposium, Sustainability Issues of Arizona's Regional Watersheds, Proceedings of the 16th Annual Symposium and Extended Abstracts, Sept. 17-20, 2003, Mesa, AZ.

Sophocleous, M.A., 2003. Environmental consequences of groundwater overexploitation: the hydrologic fundamentals. In: Wang, Y. (ed.), Proceedings of the International Symposium on Water Resources and the Urban Environment, 9-10 November 2003, Wuhan, P. R. China, China Environmental Science Press, p. 25-29.

*Sophocleous, M.A., 2002. Interactions between groundwater and surface water : The state of the science. Hydrogeology Journal, 10(1): 52-67. [PDF]

*Sophocleous, M.A., Kluitenberg, G.J., Healey, 2002. Southwestern Kansas High Plains deep vadose zone pilot study to estimate Darcian-based groundwater recharge at three instrumented sites. Kansas Geological Survey, Open-File Report 2001-11, 121 p.

Sophocleous, M.A., 2002. Water resources sustainability and its application in Kansas. In: Gerhard, L.C., Leahy, P.P., and Yannacone, V.J. Jr. (eds.), Sustainability of Energy and Water through the 21st Century. Proceedings of the Arbor Day Farm Conference, October 8-11, 2000. KGS in association with AAPG and the AAPG Division of Environmental Geosciences, Special Publication, p. 115-124. [PDF]

Sophocleous, M.A., 2002. Water resources sustainability and how the water budget is being balanced in Kansas, USA. International Association of Hydrogeologists, International Groundwater Conference Proceedings, Darwin, Australia. Distributed CD, 11 p.

*Scanlon, B.R., Dutton, A., and Sophocleous, M.A., 2002. Groundwater Recharge in Texas. Project Report to Texas Water Development Board, 80 p. [PDF]

*Woods, J.J., and Sophocleous, M.A., 2002a. Set of maps for Southwest Kansas Groundwater Management District. Kansas Geological Survey, Open-File Report 2001-45:

2001-45A 1999, 2000, 2001 averaged saturated thickness at section centers in the High Plains aquifer, 1 sheet, scale 1:300,000.

2001-45B Change in saturated thickness at section centers in the High Plains Aquifer 1996-1998 to 1999-2001 using data only from wells that have measurements in both periods (1996-1998) and (1999-2001), 1 sheet, scale 1:300,000.

2001-45C Change in saturated thickness at section centers in the High Plains Aquifer predevelopment to 1999-2001, 1 sheet, scale 1:300,000.

2001-45D Depth to water at section centers in the High Plains Aquifer averaged 1999, 2000, and 2001 data, 1 sheet, scale 1:300,000.

2001-45E Saturated thickness at section centers in the High Plains Aquifer projected 2010 data, 1 sheet, scale 1:300,000.

2001-45F Saturated thickness at section centers in the High Plains Aquifer projected 2025 data, 1 sheet, scale 1:300,000.

2001-45G Saturated thickness at section centers in the High Plains Aquifer projected 2100 data, 1 sheet, scale 1:300,000.

2001-45H Bedrock elevation at section centers in the High Plains Aquifer, 1 sheet, scale 1:300,000.

*Woods, J.J., and Sophocleous, M.A., 2002b. Set of maps for Southwest Kansas Groundwater Management District. Kansas Geological Survey, Open-File Report 2002-26:

2002-26A Saturated thickness at section centers in the High Plains aquifer predevelopment data, 1 sheet, scale 1:300,000.

2002-26B 1999, 2000, 2001 averaged saturated thickness at section centers in the High Plains aquifer, 1 sheet, scale 1:300,000.

2002-26C Change in saturated thickness at section centers in the High Plains aquifer predevelopment 1999-2001, 1 sheet, scale 1:300,000.

2002-26D Percent change in saturated thickness at section centers in the High Plains aquifer predevelopment to 1999-2001, 1 sheet, scale 1:300,000.

Townsend, M.A., Whittemore, D.O., Young, D.P., Hecox, G., Macfarlane, P.A., Sophocleous, M.A., and Buddemeier, R.W., 2002. Information sheets and supplementary documents. Kansas Geological Survey, Open-File Report 2002-25G.

Townsend, M.A., and Sophocleous, M.A., 2002. Review of Harper County landfill site. Kansas Geological Survey, Open-File Report 2002-56, 4 p. plus 9 appendices.

Olea, R.A, Sophocleous, M.A., and Woods, J.J., 2002. Expansion for the High Plains Aquifer Observation Network of water wells in southwest Kansas, Kansas Geological Survey, Open-File Report 2002-35, 2 p. plus 1 plate.

Woods, J.J., and Sophocleous, M.A., 2002c. January 2001 Kansas Water Levels and Data Related to Water-level Changes, Kansas Geological Survey, Technical Series 17, 95 p. [Online]

MacMahon, P., and Sophocleous, M.A., 2002. Deep unsaturated-zone recharge to the High Plains aquifer. In: Managing our water supplies Proceedings, 19th Annual Water and the Future of Kansas Conference, Lawrence, Kansas, p. 16.

Bardsley, W.E., Sophocleous, M.A., and Merriam, D.F., 2002. Evaluation of geological weighing lysimeters as a new field method for hectare-scale water budget studies. Science-based Infrastructure for the Hydrologic Sciences, CUAHSI, problem statement online: http://www.cuahsi.org/scicom/

Sophocleous, M.A., 2002. Understanding the environmental implications of groundwater overexploitation. 2002 Geological Society of America Annual Meeting, Abstracts with Programs, vol. 34, no. 6, p. 159.

Bruce, B.W., Dennehy, K.F., Ellett, K.M., Gurdak, J.J., McMahon, P.B., Reedy, R,C., Scanlon, B.R., and Sophocleous, M.A., 2002. Evaluation of recharge fluxes to the High Plains aquifer, Colorado, Kansas, Texas, and Nebraska. 2002 Geological Society of America Annual Meeting, Abstracts with Programs, vol. 34, no. 6, p. 97.

Sophocleous, M.A., 2002. Water resources sustainability and how the water budget is being balanced in Kansas, USA. Balancing the groundwater budget Groundwater Conference, International Association of Hydrogeologists, Vol. 1, Tuesday, Thursday Abstracts, p.73.

Sophocleous, M.A., 2002. Understanding the impact of aquifer intensive use on the environment. Symposium on Intensive use of groundwater: Challenges and opportunities (SINEX), Invited Papers and Abstracts, Valencia, Spain, 20 p. Also available on distributed CD.

*Sophocleous, M.A., 2000. Quantification and regionalization of ground-water recharge in south-central Kansas: Integrating field characterization, statistical analysis, and GIS. The Compass. Kansas Geological Survey, The Univ. of Kansas, Special Issue, v.75, nos. 2 and 3, p. 101-115. (Journal issue appeared 2001) [PDF]

Sophocleous, M.A., 2001. The impact of small Kansas landfills on underlying aquifers: Modeling and risk assessment. 2001 Annual Conference of the International Assoc. for Mathematical Geology, Proceedings, Cancun, Mexico. (Electronic Proceedings on CD).

Sophocleous, M.A., Kluitenberg, G.J., and Healey, J.M., 2001. Deep vadose zone fluxes reaching the High Plains aquifer in southwestern Kansas. 133rd Annual Meeting of the Kansas Academy of Science, Lawrence, KS, April 6-7, 2001, Program and Abstracts, v. 20, p. 55-56.

Sophocleous, M.A. and Perkins, S.P., 2001. Evaluating the impact of irrigation on streamflow in the Lower Republican River basin, Kansas through integrated watershed modeling. Geol. Soc. of America Annual Meeting and Exposition Abstracts, v. 33, no. 6, p. A-410.

Sophocleous, M.A., 2001. The hydroecological basis of water resources sustainability and the Kansas experience. 2001 International Conference, 20th Anniversary and Annual Meeting, Conference Abstracts, American Institute of Hydrology, Bloomington, Minn.

Sophocleous, M.A., 2001. Introduction to groundwater-systems hydrology and water resources sustainability for non-specialists: The hydrologic basis of sustainable development. Short course notebook for the 2001 International Assoc. for Mathematical Geology Conference, Cancun, Mexico.

*Sophocleous, M.A., 2000. From Safe Yield to Sustainable Development of Water Resources--the Kansas Experience. Journal of Hydrology, 235(1-2): 27-43. [PDF]

*Sophocleous, M.A., 2000. The origin and evolution of safe yield policies in the Kansas Groundwater Management Districts. Natural Resources Research, 9(2): 99-110. [PDF]

*Sophocleous, M.A. and Perkins, S.P., 2000. Methodology and application of combined watershed and ground-water models in Kansas. Journal of Hydrology, 236(3-4): 185-201. [PDF]

*Ramireddygari, S.R., Sophocleous, M.A., Koelliker, J.K., Perkins, S.P., and Govindaraju, R.S., 2000. Development and application of a comprehensive simulation model to evaluate impacts of watershed structures and irrigation water use on streamflow and ground-water: The case of Wet Walnut Creek Watershed, Kansas. Journal of Hydrology, 236(3-4):223-246. [PDF]

Perkins, S.P., and Sophocleous, M.A., 2000. SWAT-MODFLOW Integration: Report submitted to USDA-Agricultural Research Service, Texas Agricultural Research Station, Blackland Research Center, Texas A&M University, Temple TX. Kansas Geological Survey, Open-File Report 2000-5, 77 p.

Perkins, S.P., and Sophocleous, M.A., 2000. Combining SWAT and MODFLOW into an Integrated Watershed Model. Kansas Geological Survey, Open-File Report 2000-67, 66 p.

Perkins, S.P., and Sophocleous, M.A., 2000. User's manual for a combined watershed and stream-aquifer modeling program based on SWAT-99.2 and MODFLOW-96. Kansas Geological Survey, Open-File Report 2000-68, 133 p.

Perkins, S.P., and Sophocleous, M.A., 2000. Guide to coordinating SWAT and MODFLOW with installation notes. Kansas Geological Survey, Open-File Report 2000-38, 37 p.

Perkins, S.P., and Sophocleous, M.A., 2000. RSDX and POSTX: MODFLOW packages for in-line postprocessing. Kansas. Geological Survey, Open-File Report 2000-85, 26 p.

Sophocleous, M.A., 2000. Water resources sustainability and the Kansas quest for achieving it. Southwest Focus Ground Water Conference Proceedings, National Ground Water Association, Austin, TX, p. 31.

Sophocleous, M.A. and Wilson, B.B., 2000. Surface water in Kansas and its interactions with ground water. In: Schloss, J.A., Buddemeier, R.W., and Wilson, B.B. (eds.), An Atlas of the Kansas High Plains Aquifer. Kansas Geological Survey, Educational Series 14, p. 4-12.

Sophocleous, M.A. and Schloss, J.A., 2000. Estimated annual ground-water recharge. In: Schloss, J.A., Buddemeier, R.W., and Wilson, B.B. (eds.), An Atlas of the Kansas High Plains Aquifer. Kansas Geological Survey, Educational Series 14, p. 36-39.

Sophocleous, M.A. and Perkins, S.P, 2000. Numerical approaches to modeling groundwater recharge with emphasis on MODFLOW and Integrated SWAT-MODFLOW models. Kansas Geological Survey, Open-File Report 2000-77, 16 p.

*Sophocleous, M.A., Koelliker, J.K., Govindaraju, R.S., Birdie, T., Ramireddygari, S.R., Perkins, S.P., 1999. Integrated Numerical Modeling for Basin-wide Water Management: The Case of the Rattlesnake Creek Basin in South-central Kansas. Journal of Hydrology, 214(1-4): 179-196. [PDF]

*Ma, T-S., Sophocleous, M.A., Yu, Y-S., 1999. Geostatistical applications in ground-water modeling in south-central Kansas. Journ. Hydrologic Engineering, Amer. Soc. Civil Engineers, 4(1):57-64. [PDF]

*Perkins, S.P., and Sophocleous, M.A., 1999. Development of a comprehensive watershed model applied to study stream yield under drought conditions. Ground Water, 37(3): 418-426. [PDF]

Sophocleous, M.A., 1999. Combining field characterization, statistical analysis, and GIS to regionalize localized recharge estimates in semiarid to subhumid plains. In: Lippard, S.J., Naess, A., and Sinding-Larsen, R. (eds), Proc. of the 5th Annual Conference of the Intern'l Assoc. for Mathematical Geology, Trondheim, Norway, vol. 1, p. 105-110.

Koelliker, J.K., Ramireddygari, S.R., Sophocleous, M.A., and Perkins, S.P., 1999. Evaluation of Wet Walnut Water Supply Availability. Final Report to Kansas Water Office, 149 p. (Also available as Engineering Experiment Station Report no. 287, Kansas State University, Manhattan, KS.)

Koelliker, J.K., Ramireddygari, S.R., Sophocleous, M.A., and Perkins, S.P., 1999. Evaluation of Wet Walnut Water Supply Availability. Hydrogram, Summer 99 issue, p. 16-20.

Koelliker, J.K., Ramireddygari, S.R., Sophocleous, M.A., and Perkins, S.P., 1999. Effect of watershed structures on water supply availability. 1999 ASAE/CSAE-SCGR Annual International Meeting, Program with Abstracts, Toronto, Ontario, Canada.

Ramireddygari, S.R., Koelliker, J.K., Sophocleous, M.A., and Perkins, S.P., 1999. Evaluation of Wet Walnut Water Supply Availability. 16th Annual Water and the Future of Kansas Conference Proceedings, Manhattan, KS, p. 38.

Sophocleous, M.A., 1999. Perspectives on sustainable development of water resources: A USA Great Plains outlook. Murray-Darling Basin Groundwater Workshop Conference Proceedings, Griffith, NSW, Australia, p. 28-33.

Sophocleous, M.A., 1999. Water resources sustainability and the Kansas High Plains experience. Geological Society of America, 1999 Annual Meeting and Exposition, Abstracts with Programs, p. A-492.

Perkins S.P., and Sophocleous, M.A., 1999. Documentation of a combined watershed and stream-aquifer modeling program based on SWAT and MODFLOW. Vol. 1, User's Manual. Kansas Geological Survey, Open-File Report 99-24, 126+ p.

Perkins S.P., and Sophocleous, M.A., 1999. Documentation of a combined watershed and stream-aquifer modeling program based on SWAT and MODFLOW. Vol. 2, Added or Modified Source Code. Kansas Geological Survey, Open-File Report 99-25. 183+ p.

Townsend, M.A. et al. (10 named contributors, including Sophocleous, M.A.), 1999. High Plains Aquifer Evaluation Study. First Year Interim Report to Kansas Water Office. Kansas Geological Survey, Open-file Report 99-4.

Buddemeier, R.W., Whittemore, D.O. (Compilers; 14 named contributors, including Sophocleous, M.A.), 1999. High Plains aquifer evaluation: Report of Progress and Products, FY1999. Kansas Geological Survey, Open-File Report 99-21, 28 p.

*Sophocleous, M.A., and Ma, T-S., 1998. A decision support model to assess saltwater vulnerability in the Great Bend Prairie Aquifer of Kansas. Ground Water, 36(3):476-483. [PDF]

*Sophocleous, M.A., 1998. Review of "Hydrology for Engineers, Geologists and Environmental Professionals" by S.E. Serrano. Mathematical Geology, 30(7):935-936.

*Sophocleous, M. A. (ed.), 1998. Perspectives on Sustainable Development of Water Resources in Kansas. Kansas Geological Survey, Bulletin 239, Lawrence, KS, 239p. (See p. 39 of the April 1999 issue of Geotimes for a review of this book.) [Summary, Table of Contents, Sample Chapters]

*Sophocleous, M.A., 1998. Water Resources of Kansas--A Comprehensive Outline. In: Sophocleous, M.A. (ed.). Perspectives on Sustainable Development of Water Resources in Kansas. Kansas Geological Survey, Bulletin 239, p. 1-59.

*Sophocleous, M.A., 1998. On the elusive concept of safe yield and the response of interconnected stream-aquifer systems to development. In: Sophocleous, M.A. (ed.). Perspectives on Sustainable Development of Water Resources in Kansas. Kansas Geological Survey, Bulletin 239, p. 6-85.

*Sophocleous, M.A., Buddemeier, R.W. and Buchanan, R.C., 1998. Evolving sustainability concepts: Modern developments and the Kansas Experience. In: Sophocleous, M.A. (ed.). Perspectives on Sustainable Development of Water Resources in Kansas. Kansas Geological Survey, Bulletin 239, p. 86-95.

*Sophocleous, M.A., 1998. Concluding comments on managing water resources systems: Why "Safe Yield" is not sustainable. In: Sophocleous, M.A. (ed.). Perspectives on Sustainable Development of Water Resources in Kansas. Kansas Geological Survey, Bulletin 239, p. 211-213.

Sophocleous, M.A., 1998. Selective glossary of Hydrology and Environmental Sustainability-related terms. In: Sophocleous, M.A. (ed.). Perspectives on Sustainable Development of Water Resources in Kansas. Kansas Geological Survey, Bulletin 239, p. 215-232.

Sophocleous, M.A., Koelliker, J.K., Govindaraju, R.S., Birdie, T., Ramireddygari, S.R., Perkins, S.P., 1998. Integrated Numerical Modeling for Rattlesnake Creek Basin in Kansas, USA. European Geophysical Society '98 Conference Proceedings, Nice, France.

Ramireddygari, S. R., Koelliker, J.K., Tracy, J.C., and Sophocleous, M.A., 1998. Decision Support System (DSS) for basin-wide water resources management. Proceedings, ASCE International Water Resources Engineering Conference, Memphis, TN, v.2, p.1787-1792.

Sophocleous, M. A., Koelliker, J. K., Govindaraju, R.S., Birdie, T., Ramireddygari, S. R., Perkins, S. P., 1998. Integrated numerical modeling for basin-wide water management: The case of Rattlesnake Creek basin, Kansas. EOS transactions, AGU, 1998 Spring Meeting, 79(17):S126, 1998 Supplement.

Koelliker, J.K., Ramireddygari, S. R., Tracy, J.C., Govindaraju, R. S., and Sophocleous, M.A., Birdie, T., Perkins,S.P.,1998. Decision Support System (DSS) for SWATMOD Model: User's Manual. Report to Div. Of Water Resources, KS Dept. of Agriculture, 61 p.

Sophocleous, M.A., Perkins, S.P., and Garinger, L. 1998. Support and enhancement of a hydrologic computer model for the Rattlesnake Creek subbasin water resources management. Final Report to Div. of Water Resources, KS Dept. of Agriculture, 70 p. plus electronic appendices.

Sophocleous, M.A., Perkins, S.P., Koelliker, J.K., and Ramireddygari, S.R., 1998. Evaluation of Wet Walnut water supply availability: Development and application of an integrated watershed model. Kansas Geological Survey, Open-File Report 98-60, 45 p. plus appendix with nine GIS maps.

Perkins, S.P.. and Sophocleous, M.A., 1998. A computer model for water management in the Rattlesnake Creek basin, Kansas: Development and documentation of SWATMOD. Kansas Geological Survey, Open-File Report 98-59, 120 p.

Sophocleous, M.A., and Lim, J., 1998. Weather data processing and evaporation from open water program documentation. Final Report to U.S. Fish and Wildlife Service, Denver, CO, 13 p. plus program and data diskette.

Sophocleous, M.A., 1998. A review and synthesis of work done at KGS during the 1980's on the Equus Beds observation well network. Report submitted to the Equus Beds Groundwater Management District No. 2, Kansas Geological Survey, Open-File Report 98-61, 4 p.

Sophocleous, M.A., Koelliker, J.K., Govindaraju, R.S., Birdie, T., Ramireddygari, S.R., Perkins, S.P., 1998. Integrated Numerical Modeling for the Rattlesnake Creek Basin. In: 15th Annual Water and the Future of Kansas Conference Proceedings, p. 32.

Sophocleous, M.A. and Perkins, S.P., 1998. Integrated watershed modeling for the Lower Republican River basin. In: 15th Annual Water and the Future of Kansas Conference Proceedings, p. 32.

Sophocleous, M.A., 1998. Sustainable development of water resources in Kansas. In: 15th Annual Water and the Future of Kansas Conference Proceedings, p. 32.

Ramireddygari, S. R., Koelliker, J.K., Tracey, J.C., and Sophocleous, M.A., 1998. Decision Support System for Water Resources Management. In: 43rd Annual Midwest Ground Water Conference Program and Abstracts, p.14-15.

Sophocleous, M.A., 1998. Modeling and risk assessing the impact of small Kansas landfills on underlying aquifers. In: 43rd Annual Midwest Ground Water Conference Program and Abstracts, p. 32.

Sophocleous, M.A., 1998. Sustainable development of water resources in Kansas. In: 43rd Annual Midwest Ground Water Conference Program and Abstracts, p. 32-33.

Sophocleous, M.A., and Eskrootchi, R., 1998. Nine water resources-related maps and GIS coverages for modeling the Wet Walnut Creek basin. Kansas Geological Survey, Open-File Report 98-63.

*Sophocleous, M.A., 1997. Managing water resources systems: Why "safe yield" is not sustainable. Ground Water, vol. 35, no. 4, p. 561. [PDF]

*Ma, T-S., Sophocleous, M.A., Yu, Y-S., and Buddemeier, R.W., 1997. Modeling salt-water upconing in a freshwater aquifer in south-central Kansas. Journal of Hydrology, 201(1-4):120-137. [PDF]

*Sophocleous, M.A., Perkins, S.P., Stadnyk, N.G., Kaushal, R.S., 1997. Lower Republican Stream-Aquifer Project. Vol. 1. Combined watershed/stream-aquifer model conceptualization and application. Kansas Geological Survey, Open-File Report 97-8, 243 p.

Perkins, S.P., and Sophocleous, M.A., 1997. Lower Republican Stream-Aquifer Project. Vol. 2. Development and documentation of a combined watershed and stream-aquifer modeling program. Kansas Geological Survey, Open-File Report 97-9, 165 p. plus electronic appendices.

*Sophocleous, M.A., Koelliker, J.K., Govindaraju, R.S., Birdie, T., Ramireddygari, S.R., and Perkins, S.P., 1997. A Computer Model for Water Management in the Rattlesnake Creek Basin, Kansas. Final Report to Division of Water Resources, Kansas Department of Agriculture, 225 p., plus 277 p. of various KGS Appendices, plus KSU Appendices, plus electronic appendices.

Ma, T-S., and Sophocleous, M.A., 1997. Combining geostatistics and ground-water modeling to study saltwater intrusion in an inland aquifer in Kansas, USA. In: Pawlowsky-Glahn, V. (ed.). Proceedings of IAMG '97, The 3rd Annual Conference of the International Association for Mathematical Geology, Part 2, p. 860-865, International Center for Numerical Methods in Engineering (CIMNE), Barcelona, Spain.

Townsend, M.A., Sleezer, R.O., and Sophocleous, M.A., 1997. Field-scale variability of soil properties influencing retention of plant-available nitrogen in central Kansas. Kansas Water Resources Institute, Contribution No. 326, 65 p.

*Sophocleous, M.A., and Sawin, R.S., 1997. Safe yield and sustainable development of water resources in Kansas. Kansas Geological Survey, Public Information Circular 9, 6 p. [Online]

Perkins, S.P., and Sophocleous, M.A., 1997. Development of an integrated watershed model code applied to study the effect of irrigation water use on streamflow. EOS, Transactions, American Geophysical Union, 1997 Fall Meeting, 78(46):F321, 1997/Supplement.

Sophocleous, M.A., and Ma, T-S., 1997. A simple model to assess saltwater vulnerability in central Kansas aquifers. 14th Annual Water and the Future of Kansas Conference Proceedings. Kansas State University, Manhattan, KS, p. 24.

Sophocleous, M.A., 1997. Hydrologic processes related to Kansas ponds and lakes. A report to the Kansas Aggregates and Groundwater Resources Task Force. Kansas Geological Survey, Open-File Report 97-60, 38 p.

*Sophocleous, M.A., Stern, A.J. and Perkins, S.P., 1996. Hydrologic impact of Great Flood of 1993 in south-central Kansas. Journ. of Irrigation and Drainage Engineering, Amer. Soc. of Civil Engineers, 122(4):203-210. [PDF]

*Sophocleous, M.A., Stadnyk, N.G., and Stotts, M., 1996. Modeling impact of small Kansas landfills on underlying aquifers. Journ. of Environmental Engineering, Amer. Soc. of Civil Engineers, 122(12):1067-1077. [PDF]

Sophocleous, M.A., 1996. Why is the Quivira Marsh in south-central Kansas Salty and why are there marshes in that area of Kansas? Report to the Quivira National Wildlife Refuge. Kansas Geological Survey, Open-file Report 96-52.

Sophocleous, M.A., 1996. Stream-aquifer interaction in south-central Kansas. In: Sawin, R.S., and Buchanan, R.C. (eds), Kansas Water Issues, 1996 Field Conference. Kansas Geological Survey, Open-File Report 96-23.

Buddemeier, R.W., Sophocleous, M.A., and Macfarlane, P.A., 1996. Stream-aquifer system management on the basis of groundwater levels. Kansas Geol. Survey, Open-File Report 96-17.

Ma, T-S., and Sophocleous, M.A., 1996. Dynamic Simulation of Saltwater Intrusion at the Siefkes Site, Stafford County, Kansas, and Decision Support for Saltwater Vulnerability Assessment. Kansas Geological Survey, Open-File Report 96-18, 118 p.

Sophocleous, M.A., Perkins, S.P., Kaushal, R.S., and Stadnyk, N.G., 1996. Lower Republican River basin stream/aquifer interaction. Progress report to the Kansas Water Office. Kansas Geological Survey, 70 p.

Townsend, M.A., Sophocleous, M.A., and Sleezer, R.O., 1996. Effects of soil variability on nitrate transport. Kansas Water Resources Research Institute, Contrib. No. 319, 57 p.

Birdie, T., and Sophocleous, M.A., 1996. Rattlesnake Creek sub-basin modeling: Status report on model calibration and verification. Report submitted to the Division of Water Resources. Kansas Geol. Survey, 132 p.

Sophocleous, M.A., 1996. The hydrologic budget and ground-water recharge impact of the Great Flood of 1993 in the Great Bend Prairie portion of the High Plains aquifer in South-Central Kansas. Geological Society of America, 1996 Annual Meeting, Abstracts with Programs, vol. 28, no. 7, p. A-78.

Sophocleous, M.A., 1996. Safe Yield, A Poor Guide for Ground Water Management. In: National Ground Water Association 1996 AGWSE National Education Program. "Emerging Opportunities in Ground Water: Are you Ready?" p. 12-13.

Sophocleous, M.A. (editor, contributor, and project coordinator), 1996. Water Budget and Stream Routing study for the Quivira National Wildlife Refuge. A KGS-USGS co-operative report to USFWS, 306 p.

Sophocleous, M.A., 1996. Selective Glossary of Hydrology and Environmental Sustainability-related Terms. Kansas Geological Survey, Open-File Report 96-58, 36 p.

Perkins, S.P., and Sophocleous, M.A., 1996. Development and documentation of a combined watershed and stream-aquifer modeling program (SWATMOD) implemented in the Rattlesnake Creek basin, Kansas. Report submitted to Div. of Water Resources, Kansas Dept. of Agriculture, 100 p.

*Sophocleous, M.A., Koussis, A., Martin, J.L., and Perkins, S.P., 1995. Evaluation of simplified stream-aquifer depletion models for water rights administration. Ground Water, Vol. 33, No. 4, p. 579-588. [PDF]

Sophocleous, M.A., and Quinodoz, H., 1995. Kansas Landfills: Regulations, general characteristics, and modeling tools. Progress report to EPA Region 7 and Kansas Dept. of Health and Environment, Bureau of Waste Management. Kansas Geological Survey, Open-File Report 95-2, 31 p.

Sophocleous, M.A., 1995. Safe Yield of aquifers: The illusion of sustainable ground-water development. Geological Society of America Abstracts with programs, p. A-104.

Sophocleous, M.A., and Birdie, T., 1995. Rattlesnake Creek Sub-basin Modeling: Summary of data compilation, initial data analysis, and model selection and combination. First 1995 KGS Progress report to the Division of Water Resources, Kansas Dept. of Agriculture, 51 p.

Sophocleous, M.A., Perkins, S.P., Moustakas, S. and Kaushal, R., 1995. Republican River Stream/Aquifer study: Model development, FY95 Progress report to KWO, Kansas Geological Survey, Open-File Report 95-27, 57 p.

Sophocleous, M.A. and Stadnyk, N., 1995. Small landfills in Kansas: Minimum requirements for protecting the public health and environment. Kansas Geol. Survey, Open-File Report 95-17, 13 p.

Ma, T., and Sophocleous, M.A., 1995. Numerical solution of saltwater upconing at the Siefkes Site, Stafford County, Kansas. Kansas Geological Survey, Open-File Report 95-40, 71 p.

Sophocleous, M.A., 1995. The 1993 flooding in south-central Kansas. Water and the Future of Kansas Conference Proceedings, p. 39.

Sleezer, R.O., Townsend, M.A., and Sophocleous, M.A., 1995. Using electromagnetic, laboratory, geostatistical, and geomorphic techniques to assess soil variability. Agronomy Abstracts S06107P, American Society of Agronomy.

Birdie, T., and Sophocleous, M.A., 1995. Global optimization of ground-water numerical models using interval arithmetic. AGU, 1995 Spring Meeting, Vol. 76, No. 17, p. S148.

Sophocleous, M.A., Perkins, S.P., Moustakas, S. and Kaushal, R., 1995. Republican River Stream/Aquifer Study: Model Development and Application. 1995 Year-end Progress Report to KWO. Kansas Geological Survey, Open-File Report 95-53, 105 p.

Sophocleous, M.A., Quinodoz, H., Stadnyk, N., 1995. Groundwater contamination from landfill leachate: A risk assessment prototype for Western Kansas. Progress report to EPA region 7 and Kansas Dept. of Health and Environment, Bureau of Waste Management. Kansas Geological Survey, Open-File Report 95-55.

Pouch, G., and Sophocleous, M.A., 1995. Federal Fiscal Year Progress Report on the Quivira Water Budget and Routing Model. A report submitted to U.S. Fish and Wildlife Service, Region 6, Denver, CO, 90 p.

Birdie, T., and Sophocleous, M.A., 1995. Rattlesnake Creek Sub-basin Modeling: Status on Model Calibration. Second KGS 1995 progress report to the Division of Water Resources, Kansas Dept. of Agriculture, 58 p.

McClain, T.J., Sophocleous, M.A., Bassler, R.E., Bader, C., and Mitchell, J.E., 1995. Solomon Basin Study: Report to the Kansas Water Office, Kansas Geol. Survey, Open-File Report 95-38, 148 p.

Schwab, P.A., Dodds, W., Banks, M.K., Koelliker, T.K., Macpherson, W., Rice, C.W., and Sophocleous, M.A., 1995. Biotic and abiotic factors controlling nitrogen flux in pristine and agriculture subsurface systems. Statewide K*STAR meeting, Manhattan, KS, Sept. 1995.

Sophocleous, M.A., and Stern, A., 1994. GIS hydrologic maps for regional resource management of south-central Kansas. 11th Annual Water and the Future of Kansas Conference Proceedings, p. 45, March 94, Manhattan, Kansas.

Koussis, A., Sophocleous, M.A., Martin, J.L., and Perkins, S.P., 1994. Evaluation of simplified stream-aquifer depletion models for water rights administration. 11th Annual Water and the Future of Kansas Conference Proceedings, p. 18-19, March 94, Manhattan, Kansas.

Schwab, P.A., Rice, C.W., Dodds, W., Sophocleous, M.A., Banks, M.K., Koelliker, T.K., and Macpherson, W., 1994. NSF EPSCoR: Biotic and abiotic factors controlling nitrogen flux in pristine and agricultural subsurface systems. 11th Annual Water and the Future of Kansas Conference Proceedings, p. 44, March 94, Manhattan, Kansas.

Koussis, A., Sophocleous, M.A., Bian, L., Zou, S., Greenfield, D., Moustakas, S., 1994. Lower Republican River Basin. First Progress Report to the Kansas Water Office, University of Kansas, 85 p.

Sophocleous, M.A. and Bagheri, M., 1994. Preliminary evaluation of unsaturated-saturated flow and mass transport models: 1st NSF EPSCoR Progress Report. Kansas Geological Survey, Open-File Report 94-12, 26 p.

Sophocleous, M.A., 1994. Phreatophyte water use and modeling water transport in the soil-plant-atmosphere system. Kansas Academy of Science 126th Annual Meeting Abstracts, Vol. 13, p. 3.

Koussis, A.D., Sophocleous, M.A., and Zou, S., 1994. Hydrologic Model Selection for Lower Republican River Basin. Report submitted to Kansas Water Office, University of Kansas, 13 p.

Sophocleous, M.A., 1994. Numerical model selection considerations and data collection progress report for the Rattlesnake Creek Subbasin, Kansas. Kansas Geological Survey, Open-File Report 94-31, 41 p.

Ma, T-S., and Sophocleous, M.A., 1994. Simulations of saltwater upconing in unconfined aquifers: Report of progress in Mineral Intrusion project. Kansas Geological Survey, Open-File Report 94-28f, 67 p.

Sophocleous, M.A., 1994. Aquifer testing: Practical procedures. Kansas Geological Survey, Open-File Report 94-56, 15 p.

Sophocleous, M.A., Koussis, A.D., Martin, J.L., and Perkins, S.P., 1994. Evaluation of simplified stream-aquifer depletion models for water rights administration EOS Trans., American Geophysical Union, 1994 Fall Meeting, Vol. 75, No. 44, p. 282.

Sophocleous, M.A., 1994. The application of regional ground-water flow concepts to hydrocarbon exploration and basin analysis. Kansas Geological Society Bulletin, Vol. 70, No. 2, Oct. 94, p. 19.

Whittemore, D.O., and Sophocleous, M.A., 1994. Hydrologic and chemical interaction of the Arkansas River and the Equus Beds aquifer between Hutchinson and Nickerson, North-Central Reno County, Kansas: Appraisal Investigation. Report prepared for the U.S. Bureau of Reclamation, Great Plains Region, Billings, Montana, 148 p.

Sophocleous, M.A., 1994. Evaluation of the University of South Florida final report entitled "The FHM integrated model application of the Quivira National Wildlife Refuge." Report submitted to U.S. Fish and Wildlife Service, Division of Water Resources, Region 6, May 1994, 3 p.

Koussis, A.D., Sophocleous, M.A., Martin, T.L., and Perkins, S.P., 1994. Evaluation of the Role of Stream-Aquifer Hydraulics in the Administration of Water Rights and Minimum Streamflow Standards. Kansas Water Resources Research Institute, Contribution No. 311, May 1994, 130 p.

Sophocleous, M.A., Stern, A., and Perkins, S.P., 1994. The hydrologic impact of the Great Flood of 1993 in the Great Bend Prairie of South-Central Kansas. Kansas Geological Survey, Open-File Report 94-52, 35 p.

Koussis, A.D., Sophocleous, M.A., Bian, L., Zou, S., 1994. Lower Republican River Basin: Stream-Aquifer Study. First Year Report to Kansas Water Office, University of Kansas, 142 p. Also Kansas Geological Survey, Open-File Report 94-65.

Sophocleous, M.A., Birdie, T., Buddemeier, R.W., Perkins, S.P., and Ma, J., 1994. Computer model selection and data assimilation for Rattlesnake Creek Sub-basin Water Resources Management Program. Final report to the Division of Water Resources, Kansas State Board of Agriculture. Kansas Geological Survey, Open-File Report 94-62, 81 p.

*Sophocleous, M.A., and Perkins, S.P., 1993. Calibrated models as management tools for stream-aquifer systems: The case of central Kansas, USA. Journal of Hydrology, v. 152 no. 1-4, p. 31-56. [PDF]

*Sophocleous, M.A., 1993. A comparative review of ground-water recharge estimates for the Great Bend Prairie aquifer of Kansas. In: Current Research on Kansas Geology, Kansas Geological Survey, Bulletin 235, p. 41-54. [PDF]

*Sophocleous, M.A., 1993. Microcomputer applications in statistical hydrology by R. H. McCuen. Review. Computers and Geosciences, v. 19, no. 8, p. 1207.

Sophocleous, M.A., 1993. Parameter-estimation numerical modeling for stream-aquifer decline management under political tension. Proceedings, 1993 Ground Water Modeling Conference, E. Porter, S. Ashlock, and J. Proud eds. International Ground Water Modeling Center, Golden, Colorado, p. 1.1-1.10.

Koussis, A.D., Sophocleous, M.A., Martin, J., and Perkins, S.P., 1993. Modeling stream-aquifer interaction for water rights administration. Engineering Hydrology: Proceedings of the Symposium sponsored by the Hydraulics Division of the American Society of Civil Engineers, San Francisco, California; edited by C. Y. Kuo, p. 898-903.

Sophocleous, M.A., 1993. Ground-water recharge distribution in the Great Bend Prairie of Kansas. Proceedings, 1993 Water and the Future of Kansas Conference.

Sophocleous, M.A., and Perkins, S.P., 1993. Stream-aquifer modeling and preliminary mineral intrusion analysis of the lower Rattlesnake Creek basin with emphasis on the Quivira National Wildlife Refuge, Kansas. Final Report. Kansas Geological Survey, Open-File Report 93-7, 194 p.

Sophocleous, M.A., Perkins, S.P., and Pourtakdoust, S., 1993. Stream-aquifer numerical modeling of the Kinsley to Great Bend reach of the Arkansas River in Kansas: Final Report. Kansas Geological Survey, Open-File Report 93-32, 120 p.

Sophocleous, M.A., and Ma, T-S., 1993. Hydrologic modeling and water budget of the Quivira National Wildlife Regue. Kansas Geological Survey, Open-File Report 93-16, 59 p.

Koussis, A.D., Sophocleous, M.A., Martin, J., and Perkins, S.P., 1993. Evaluation of the role of stream-aquifer hydraulics in the administration of water rights and minimum desirable streamflow standards. Kansas Water Resources Research Institute, Contribution No. 304, 66 p.

Sophocleous, M. A., and Stern, A., 1993. Eighteen GIS hydrologic maps of the Big Bend Ground-water Management District No. 5 (GMD5). Kansas Geological Survey, Open-file Report 93-3, 11 p. plus 18 plates.

Sophocleous, M. A., 1993. Pictorial synthesis of 2,922 days (1985-1992) of continuous water-related data recording for the Big Bend Ground-water Management Distsrict No. 5 of south-central Kansas. Kansas Geological Survey, Open-file Report 93-22, 32 p.

Buddemeier, R.W., Garneau, G., Healey, J.M., Ma, T-S., Mitchell, J.E., Sophocleous, M.A., Whittemore, D.O., Young, D., and Zehr, D., 1993. The mineral intrusion project: Report of progress during fiscal year 1993. Kansas Geological Survey, Open-file Report 93-23, 53 p. plus appendices.

Sophocleous, M.A., and Perkins, S.P., 1993. Management of declining stream-aquifer water resources using calibrated numerical models. Proceedings of the Symposium on Effective Use Management and Abstracts of the American Water Resources Association 29th Annual Conference, p. 225.

Sophocleous, M.A., and Chung, C., 1993. Conceptual simulations of saltwater upconing with the USGS SUTRA model. Kansas Geological Survey, Open-file Report 93-29, 55 p.

Sophocleous, M.A., 1993. Combining ground-water flow and parameter estimation numerical modeling for stream-aquifer decline management. International Association for Mathematical Geology Silver Anniversary Meeting, Program and Abstracts, p. 57, Prague, Czech Republic.

Sophocleous, M.A., 1993. Seasonal thermal energy storage and retrieval in the Tonganoxie Aquifer beneath the University of Kansas Campus. In: Archer, A.W., Feldman, H.R., and Lanier, W.P. (eds.), Incised paleovalleys of the Douglas Group in northeastern Kansas: Field Guide and related contributions, Kansas Geological Survey, Open-File Report 93-24, p. 11.1-11.8.

Schwab, A., Banks, K., Dodds, W., Koelliker, J., Macpherson, G., Rice, C., and Sophocleous, M.A., 1993. Biotic and abiotic factors controlling nitrogen flux in pristine and agricultural subsurface environments. Abstract, 5th Annual Konza Prairie LTER Workshop, Manhattan, Kansas, p. 35.

*Sophocleous, M.A., 1992. Groundwater recharge estimation and regionalization: The Great Bend Prairie of Central Kansas and its recharge statistics. Journal of Hydrology, v. 137, nos. 1-4, p. 113-140. [PDF]

*Sophocleous, M.A., 1992. Movement and fate of agrichemicals in field soils: Characterization and aquifer contamination potential. Air and Waste Management Association Proceedings, Paper no. 92-3.01, 85th Annual Meeting, vol. 17, "Water and Groundwater," p. 9-19.

Sophocleous, M.A., 1992. Movement and fate of agrichemicals in field soils: Characterization and aquifer contamination potential. Invited paper to the 85th Annual Meeting and Exhibition, Air and Waste Management Association. Kansas City, MO., June 21-26, 1992, Abstracts, p. 4.

Johnson, W.C., and Sophocleous, M.A., 1992. Late-Quaternary Succession of Fluvial Processes and Its Impact on Contemporary Hydrology of the Arkansas River in Kansas. Assoc. of American Geographers, Special Session on Fluvial Adjustments Over Time, 88th Annual Meeting, Abstracts, p. 115, San Diego California, April 18-22, 1992.

Sophocleous, M.A., 1992. Stream-aquifer interactions in the Arkansas River valley from Kinsley to Great Bend. 1992 Kansas Academy of Science 124th Annual Meeting, Abstracts, p.42, Hutchinson, KS.

Sophocleous, M.A., 1992. Regionalizing point estimates of groundwater recharge. EOS, Amer. Geophysical Union Transactions, 1992 Spring Meeting, 73(14):124, April 7, 1992 Supplement.

Sophocleous, M.A., and Perkins, S.P., 1992. Stream-Aquifer and mineral intrusion modeling of the lower Rattlesnake Creek basin with emphasis on the Quivira National Wildlife Refuge. Kansas Geological Survey, Open-File Report 92-6, 204 p.

Sophocleous, M.A., 1992. Stream-aquifer modeling of the lower Rattlesnake Creek basin with emphasis on the Quivira National Wildlife Refuge. Kansas Geological Survey, Open-File Report 92-10, 29 p.

Sophocleous, M.A., 1992. A quarter century (1967-1992) of groundwater recharge estimates for the Great Bend Prairie aquifer of Kansas. Kansas Geological Survey, Open-File Report 92-17, 23 p.

Sophocleous, M.A., Pourtakdoust, S., and Perkins, S.P., 1992. Stream-aquifer numerical modeling of the Kinsley to Great Bend reach of the Arkansas River in Kansas: Report of second-year results. Kansas Geological Survey, Open-File Report 92-13, 136 p.

Sophocleous, M.A., 1992. Modifications and improvements on the Lower Rattlesnake Creek-Quivira Marsh stream-aquifer numerical model. Kansas Geological Survey, Open-File Report 92-37, 14 p.

Buddemeier, R.W., Sophocleous, M.A., and Whittemore, D.O., 1992. Mineral Intrusion: The investigation of natural salt-water contamination of the groundwater of eastern GMD5. Kansas Geological Survey, Open-File Report 92-25, 45 p.

McClain T.J., Sophocleous, M.A., Bassler, R.E., Bader, C., Mitchell, J.E., 1992. Solomon basin study: Preliminary report to the Kansas Water Office. Kansas Geological Survey, Open-File Report 92-21.

*Sophocleous, M.A., 1991. Combining the soil-water balance and water-level fluctuation methods to estimate natural groundwater recharge: Practical aspects. Journal of Hydrology, vol. 124, nos. 3-4, p. 229-241. [PDF]

*Sophocleous, M.A., 1991. Stream-floodwave propagation through the Great Bend alluvial aquifer, Kansas: Field measurements and numerical simulations. Journal of Hydrology, vol 124, nos. 3-4, p. 207-228. [PDF]

Sophocleous, M.A., 1991. Recharge estimation for the Groundwater Management District No. 5: A six-year record. Kansas Geological Survey, Open-file Report 91-9, 14 p.

Sophocleous, M.A., 1991. Kansas Geological Survey and U.S. Fish and Wildlife Service study of the Quivira National Wildlife Refuge: A review of progress and work ahead. Kansas Geological Survey, Open-file Report 91-10, 5 p.

Sophocleous, M.A., 1991. Basinwide hydrologic budget analysis: The Rattlesnake Creek Watershed. 8th Annual Water and the Future of Kansas Conference, p. 44-45, Manhattan, KS.

Hemmat, M., Sophocleous, M.A., and Roddis, W.M.K., 1991. A microcomputer-based water-rights appropriations system: An Intelligent Decision Support System. In: L. F. Cohn and W. Rasdorf (eds), Computing in Civil Engineering and Symposium on Data Bases, Proceedings of the Seventh Conference, Washington, D.C., American Society of Civil Engineers, p. 129-138.

Johnson, W.C., and Sophocleous, M.A., 1991. Late Quaternary eolian and alluvial history of the Great Bend Prairie, Kansas and potential evidence for Early Man. Institute for Tertiary-Quaternary Studies Symposia, Feb. 28-March 1, 1991, Lawrence, KS.

Sophocleous, M.A., and Pourtakdoust, S., 1991. Stream-aquifer numerical modeling of the Kinsley to Great Bend reach of the Arkansas River in central Kansas: Report of first-year results. Kansas Geological Survey, Open-file Report 91-32, 79 p.

Sophocleous, M.A., 1991. A practical methodology for groundwater recharge estimation in semiarid plains. Agronomy Abstracts, 1991 Annual Meetings, Denver, CO., p. 232-233.

Sophocleous, M.A., 1991. Groundwater recharge estimation, statistical characterization and regionalization: The Prairies of Central Kansas. EOS, Amer. Geophys. Union Transactions, 1991 Fall Meeting Program and Abstracts, p. 225.

*Sophocleous, M., and McAllister, J., 1990. Hydrologic-balance modeling of the Rattlesnake Creek watershed, Kansas. Kansas Geological Survey, Ground Water Series 11, 72 p.

*Sophocleous, M.A., Townsend, M.A., Orountiotis, C., Evenson, R.A., Whittemore, D.O., Watts, C.E., and Marks, E.T., 1990. Movement and aquifer contamination potential of atrazine and inorganic chemicals in central Kansas croplands. Kansas Geological Survey, Ground Water Series 12, 64 p.

*Sophocleous, M., Townsend, M.A., and Whittemore, D.O., 1990. Movement and fate of atrazine and bromide in central Kansas croplands, Journal of Hydrology, vol. 115, nos. 1-4, p. 115-137. [PDF]

Sophocleous, M.A., and Birdie, T., 1990. Stream flood-wave propagation through the Great Bend alluvial aquifer: A significant recharge and stream-aquifer interaction mechanism? Kansas Water Resources Research Institute. Contribution No. 282, Manhattan, Kansas, 122 p.

Sophocleous, M.A., 1990. Stream-floodwave propagation through the Great Bend alluvial aquifer, Kansas. Abstract No. 014810, Geological Society of America, Abstracts with Programs, v. 22, no. 7, p. A52.

Sophocleous, M.A., 1990. Recharging the Great Bend Aquifer. 7th Annual Water and the Future of Kansas Conference, Proceedings, p. 33.

Sophocleous, M. A., Bassler, R., and McClain, T., 1990. Soil-moisture budget analysis and regional groundwater recharge estimation for the Solomon watershed, Kansas. Kansas Geological Survey, Open-File Report 90-30, 27 p.

Sophocleous, M.A., Arnold, W., and McClain, T., 1990. Pre-Cenozoic bedrock and predevelopment water-level maps and data bases for the Great Bend Prairie of Kansas. Kansas Geological Survey, Open-file Report 90-15, 119 p.

Sophocleous, M.A., and Birdie, T., 1990. Documentation and testing of a computer program to simulate stream-aquifer interaction and single fluid flow using the Mercer et al. (1980) finite difference model for areal flow of salt water and fresh water separated by an interface. Report to the U.S. Fish and Wildlife Service. Kansas Geological Survey, Open-file Report 90-31, 95 p.

Sophocleous, M.A., 1990. Arkansas River stream-aquifer study--Kinsley to Great Bend reach: A progress report submitted to the Kansas Water Office. Kansas Geological Survey, Open-file Report 90-55, 16 p.

Sophocleous, M.A., 1989. Natural Ground Water Recharge Assessment for the Big Bend Ground-Water Management District No. 5. Kansas Geological Survey, Open-File Report 89-7, 5 p.

Coble, G., Marks, N., Evanson, R., Orountiotis, C., and Sophocleous, M.A., 1989. Determination of groundwater recharge for sites in the Great Bend Prairie region of Kansas. Kansas Academy of Science, 121st Annual Meeting, Abstracts of papers presented, v. 8, April, 1989.

Sophocleous, M.A., Townsend, M.A., and Whittemore, D.O., 1989. Movement and fate of agrichemicals in field soils as indicated by the simultaneous study of atrazine and bromide. American Geophysical Union, Transactions, v. 70, no. 15, p. 326.

Sophocleous, M.A., Townsend, M.A., and Whittemore, D.O., 1989. Aquifer contamination potential of Atrazine in central Kansas croplands. Hazardous Waste Research Conference Proceedings, Manhattan, Kansas, Engineering Extension, Kansas State University, pp. 230-272.

Sophocleous, M.A., 1989. Groundwater Resources of Groundwater Management District No. 5: How renewable are they? Kansas Geological Survey, Open-File Report 89-25, 5 p.

Sophocleous, M. A., Birdie, T., and Healey, J., 1989. Stream-floodwave propagation through the Great Bend alluvial aquifer: A significant recharge and stream-aquifer interaction mechanism? Kansas Water Resources Research Institute, Contribution No. 275, Kansas State University, Manhattan KS, 94 p.

Birdie, T., and Sophocleous, M.A., 1989. Digitizing and Processing Drum-Type (Analog) Data Charts: A Manual. Kansas Geological Survey, Open-File Report 89-31.

Shaukat, N., and Sophocleous, M.A., 1989. Design, construction, and testing of an automatic inflow-outflow seepage meter for shallow streams. EOS Trans., Amer. Geophysical Union, vol. 70, No. 43, p. 1100.

*Sophocleous, M.A. Townsend, M.A., Vogler, L.D., McClain, T.J., Marks, E.T., and Coble, G.R., 1988. Experimental studies in stream-aquifer interaction along the Arkansas River in central Kansas: Field testing and analysis. Journal of Hydrology, v. 98, no. 3/4 p. 249-273. [PDF]

Sophocleous, M.A., and others, 1988, Movement and Aquifer-Contamination Potential of Atrazine in Central Kansas Croplands. Kansas Geological Survey, Open-File report 88-36, 141 p.

Sophocleous, M.A., 1988. Selecting and evaluating subsurface flow and contaminant transport models: Issues and problems. Association of Engineering Geologists 31st Annual Meeting, October 16-21, 1988. Abstracts and program, p. 58.

Sophocleous, M.A., 1988. Selecting and evaluating subsurface flow and contaminant transport models: Issues and problems. Kansas Geological Survey, Open-File report 88-35, 44 p.

Rocha, C.A., McCool, C.S., Randtke, S.J., Schoeling, L.G., and Sophocleous, M.A., 1988. The use of gelled polymer technology for the containment of contaminated groundwater. Proceedings of the Petroleum Hydrocarbons and Organic Chemicals in Ground Water: Prevention, Detection, and Restoration, vol. 1, p. 479-497, NWWA and API, Nov. 9-11, 1988, Houston, Texas.

*Sophocleous, M.A. and McAllister, J.A., 1987, Basinwide water-balance modeling with emphasis on spatial distribution of ground-water recharge. Water Resources Bulletin, v. 23, no. 6, p. 997-1010. [PDF]

*Sophocleous, M.A. and Perry, C.A., 1987, Natural Groundwater Recharge Instrumentation and Computation at sites in South-Central Kansas. U.S. Geol. Survey, Water-Resources Investigations Report 87-4097, 48 p.

*Birkelo, B.A., Steeples, D.W., Miller, R.D. and Sophocleous, M.A., 1987, Seismic reflection study of a shallow aquifer during a pumping test. Ground Water, v. 25, no. 6, p. 703-709.

Sophocleous, M.A., Townsend, M.A., Vogler, L.D., McClain, T.J., Marks, E.T., and Coble, G.R., 1987, Stream-aquifer testing of the Arkansas River alluvial aquifer near Great Bend, central Kansas. Kansas Geological Survey, Open-File Report 87-2, 90 p.

Sophocleous, M.A. and Townsend, M.A., 1987, Experimental studies in stream-aquifer interaction: Analysis of field-testing along the Arkansas River in central Kansas. American Geophysical Union, Transactions, v. 68, no. 16, p. 307.

Sophocleous, M.A. and Shapiro, R., 1987, The water balance of the Cheyenne Bottoms, Kansas. Chapter 6, p. 93-120, in: Cheyenne Bottoms: An Environmental Assessment. Report to Kansas Fish and Game Commission. Prepared by the Kansas Biological and Kansas Geological Surveys, Jan. 1987, 719 p. Also, Kansas Geological Survey, Open-File Report 86-14, 22 p.

Vogler, L.D., Sophocleous, M.A., and McClain, T.J., 1987, Streamflow diversions and inlet canal performance. Chapter 8, p. 149-162, in: Cheyenne Bottoms: An Environmental Assessment. Report to Kansas Fish and Game Commission. Prepared by the Kansas Biological and Kansas Geological Surveys, January, 1987, 719 p.

Vogler, L.D., Sophocleous, M.A., and McClain, T.J., 1987, Water rights and Pump test. Chapter 9, p. 163-168, in: Cheyenne Bottoms: An Environmental Assessment. Report to Kansas Fish and Game Commission. Prepared by the Kansas Biological and Kansas Geological Surveys, January, 1987, 719 p.

McClain, T.J., Vogler, L.D., Sophocleous, M.A., and others, 1987, Hydrologic assessment of Cheyenne Bottoms. American Geophysical Union, Transactions, v. 68, no.16, p. 309.

Sophocleous, M.A. and McAllister, J.A., 1987, Hydrologic balance modeling of the Rattlesnake Creek watershed, Kansas: Assessment of spatial distribution of ground-water recharge. Geological Society of America, Abstracts with programs, vol. 19, no. 7, p. 852, abstract no. 144331.

Denne, J.E., Yarger, H.L., Macfarlane, P.A., Knapp, R.W., Sophocleous, M.A., Lucas, J.R., and Steeples, D.W., 1987, Remote sensing and geophysical investigations of glacial buried valleys in northeastern Kansas. In: Johnson, W.C. (ed.), Quaternary environments of Kansas, Kansas Geological Survey, Guidebook Series 5, Midwest Friends of the Pleistocene, 33rd Field Conference, p. 85-92.

Christakos, G., and Sophocleous, M.A., 1987, Real time estimation of nonlinear hydrologic systems. American Geophysical Union, Transactions, v. 68, no. 44, p. 1267.

Sophocleous, M.A., and Shaukat, N., 1986, Laboratory soil physical properties determination for hydrogeologists: Kansas Geological Survey, Open-File Report 86-11.

Sophocleous, M.A., and McAllister, J.A., 1986, Hydrologic Balance Modeling of the Rattlesnake Creek Watershed. Kansas Geological Survey, Open-File Report 86-13, 97 p.

Sophocleous, M.A., 1986, Technical specifications for drilling and testing near the Arkansas River by Great Bend, Kansas. Kansas Geological Survey, Open-File Report 86-12, 20p.

Sophocleous, M.A., 1986, Stream-Aquifer Interaction study of the Arkansas River from Kinsley to Great Bend--Progress Reports I (Jan. 6, 86), II (May 22, 86) and III (Aug. 28, 86), Kansas Geological Survey, Open-File Report 86-15, 10 p.

McClain, T.J., Vogler, L., Sophocleous, M.A., Sadeghipour, J., and Whittemore, D.O., 1986. Preliminary results of the hydrologic part of the Cheyenne Bottoms feasibility study. Kansas Academy of Science, vol. 5, p. 32.

*Sophocleous, M.A. and Perry, C.A., 1985, Experimental studies in natural groundwater recharge dynamics: The analysis of observed recharge events: Journal of Hydrology, v. 81, no. 3/4, p. 297-332. [PDF]

*Sophocleous, M.A., 1985, The role of specific yield in ground-water recharge estimations: A numerical study. Ground Water, v. 23, no. 1, p. 52-58. [PDF]

Sophocleous, M.A., Perry, C.A., and Shaukat, N., 1985, Unsaturated flow and ground-water-recharge dynamics in shallow aquifers: A field-experimental approach: International Association of Hydrogeologists Memoirs, v. XVII, part 1. p. 223-235.

Whittemore, D.O., Sophocleous, M.A., Bryson, W.R., Schoof, Y., Bell, T.C., 1985, An interagency study of oilfield brine pollution in Kansas. In: Schmidt, K.D., ed., Symposium on Groundwater Contamination and Reclamation Proceedings, Amer. Water Resources Assoc., p. 109-116.

*Sophocleous, M.A., 1984, Groundwater flow parameter estimation and quality modeling of the Equus Beds aquifer in Kansas: Journal of Hydrology. v. 69, no. 1/4, p.197-222. [PDF]

*Sophocleous, M.A., and Perry, C.A., 1984, Experimental studies in natural ground water recharge dynamics: Assessment of recent advances in instrumentation: Journal of Hydrology, v. 70, no. 1/4, p. 369-382. [PDF]

*Denne, J.E., Yarger, H.L., MacFarlane, P.A., Knapp, R.W., Sophocleous, M.A., Lucas, J.R., and Steeples, D.W., 1984, Remote sensing and geophysical investigations of glacial buried valleys in northeastern Kansas: Ground Water, v. 22, no. 1, p. 56-65.

Sophocleous, M.A., in cooperation with members of the Burrton Task Force, 1984, Report of the Burrton Task Force to the Chief Engineer- Director of the Kansas State Board of Agriculture, Division of Water Resources, concerning the proposed Burrton Intensive Groundwater Use Control Area, 103 p.

Sophocleous, M.A., and Perry, C.A., 1984, Ground-water recharge dynamics in shallow aquifers--a field-experimental approach: 29th Annual Midwest Groundwater Conference, Program with Abstracts, Lawrence, KS, Oct. 1-3, 1984, p. 21-22.

*Sophocleous, M.A., 1983, Groundwater observation network design for the Kansas Groundwater Management Districts USA: Journal of Hydrology, v. 61, no. 4, p. 371-389. [PDF]

Sophocleous, M.A., and Perry, C.A., 1983, Evaluation of recent advances in instrumentation for groundwater recharge studies: Invited paper (and written abstract) presented at the 1983 Midwest Groundwater Conference, Champaign, Illinois.

Sophocleous, M.A., 1983, Groundwater monitoring network redesign for Kansas: Invited paper for the 1983 Groundwater Management Districts Association Annual Conference, Tulsa, Oklahoma. GMDA Proceedings of the 10th Annual Conference, p. 80-105.

Sophocleous, M.A., in cooperation with Heidari, M., McClain, T., and Butt, M., 1983, Aquifer testing of the Cenozoic deposits near Creighton, Nebraska. Consulting report, 18 p. plus Appendices.

Shaukat, N. and Sophocleous, M.A., 1983, Evaluation of predictive methods of hydraulic conductivity based on porous media properties: Kansas Geological Survey, Open-File Report 83-31.

Sophocleous, M.A., 1983. Water quality modeling of Equus beds aquifer in south-central Kansas. Kansas Geological Survey, Open-file Report 83-1, 75 p.

*Sophocleous, M.A., Paschetto, J., and Olea, R., 1982, Groundwater network design for northwest Kansas, using the theory of regionalized variables: Ground Water, v. 20, no. 1, p. 48-58.

Sophocleous, M.A., Liu, W., Paschetto, J., and Olea, R., 1982, Groundwater observation network design for Kansas: Kansas Geological Survey, Open-File Report 82-1, 60 p.

Sophocleous, M.A., and Hall, M., 1982, Development of a low cost thermal conductivity probe, in Steeples, D.W. and Stavnes, S.A. (eds.), Assessment of the geothermal resources of Kansas, v. 1, sec. 2, p. 149-159. Final report submitted to the Geothermal Division, U.S. Department of Energy.

Sophocleous, M.A., 1982, Appropriation of water and groundwater quality in the area between Burrton and Patterson, Equus Beds Aquifer, Kansas: Letter to Paul C. Clark, Division of Water Resources. Kansas Geological Survey, Open-File Report 82-8, 21 p.

Sophocleous, M.A., 1982, Groundwater observation network design for Kansas: Invited paper presented at the 27th Annual Midwest Groundwater Conference, October, 1982, Iowa City, Iowa.

Sophocleous, M.A., 1982, Groundwater flow parameter estimation and quality modeling of the Equus Beds aquifer in Kansas: American Geophysical Union, Transactions, v.63, no. 45, p. 927 (Fall Meeting, Amer. Geoph. Union, Dec. 1982).

Sophocleous, M.A., Heidari, M., and McElwee, C.D., 1982, Water quality modeling of the Equus Beds aquifer in south-central Kansas: Kansas Water Resources Research Institute, Contribution No. 213, The University of Kansas, Lawrence, Kansas, 68 p. (NTIS no. PB83-208-272)

Denne, J.E., Steeples, D.W., Sophocleous, M.A., Severini, A.F., and Lucas, J.R., 1982, An integrated approach for locating glacial buried valleys: Kansas Geological Survey, Groundwater Series 5, 22 p.

*Sophocleous, M.A., 1981, The declining groundwater resources of alluvial valleys: a case study: Ground Water, v. 19, no. 2, p. 214-226. [PDF]

Sophocleous, M.A., Paschetto, J., and Olea, R., 1981, Groundwater network design for Groundwater Management District #4, northwest Kansas, using the theory of regionalized variables: Kansas Geological Survey, Open-File Report 81-5, 14 p.

Sophocleous, M.A., 1980, Hydrogeologic investigations in the Pawnee Valley, Kansas: Kansas Geological Survey, Open-File Report 80-6, 168 p.

Denne, J.E., Stander, T.W., Sophocleous, M.A., Severini, A.F., and Lucas, J.R., 1980, An integrated approach for locating glacial buried valley aquifers in northeast Kansas: Paper presented (and written abstract) at the 1980 Midwest Ground-Water Conference, Indianapolis, Indiana.

*Sophocleous, M.A., 1979, Analysis of water and heat flow in unsaturated-saturated porous media: Water Resources Research, v. 15, no. 5, p 1195-1206.

*Sophocleous, M.A., 1979, A thermal conductivity probe designed for easy installation and recovery from shallow depths: Soil Science Society of America Journal, v. 43, no. 5, p. 1056-1058.

Sophocleous, M.A., 1979, Analysis of water and heat flow in unsaturated-saturated porous media: American Geophysical Union, Transactions, v. 60, n. 18, p. 249 (Spring Meeting, American Geophysical Union, May 1979).

Sophocleous, M.A., 1978, Analysis of heat and water transport in unsaturated-saturated porous media: Ph.D. Thesis, The University of Alberta, Edmonton, Canada.

Sophocleous, M.A., 1978, Short course on groundwater hydraulics: Kansas Geological Survey, Open-File Report.