Reports & Presentations

  1. “Stochastic Streamflow Generation Using Daily Rainfall Data,” M.S. Thesis, School of Hydrology, University of Roorkee, Roorkee, India, 1978.
  2. S. M. Seth and J. Obeysekera, “Multi-Station Daily Rainfall Generation,” Proceedings of the International Conference on Computer Applications in Civil Engineering, University of Roorkee,Roorkee, India, 1979.
  3. J. D. Salas, J. Obeysekera, and D. C. Boes, “Properties of Mixture Processes for Modeling Hydrologic Series,” presented at the AGU Fall Meeting, San Francisco, AGU Abstract: Eos, Vol. 61, No. 46, November, 962 p., 1980.
  4. J. D. Salas, J. Obeysekera, and D. C. Boes,”Model Identification of Hydrologic Time Series, presented at the AGU Fall Meeting, San Francisco, AGU Abstract:  EOS, Vol 61, No. 46, November, 962 p., 1980.
  5. J. D. Salas, J. Obeysekera, and D. C. Boes, “Modeling of the Equatorial Lakes Outflows,” Proceeding of the International Symposium on Rainfall-Runoff Modeling, May 18-21, 1981 at Mississippi State University, Mississippi, Ed. V. P. Singh, Water Resources  Publications, Littleton, Colorado, 1981
  6. J. Obeysekera, “Physically Based Stochastic Models for Seasonal Streamflow,” presented at the AGU Front Range Branch Hydrology Day, Colorado State University, Fort Collins, Colorado, April, 1981.
  7. J. Obeysekera, J. D. Salas, and D. C. Boes, “Run and Range Properties of Shifting Level Models,” presented at the AGU Front Range Branch Hydrology Day, Colorado State University, Fort Collins, Colorado, April, 1981
  8. J. D. Salas, D. C. Boes, J. Obeysekera, and D. B. Cline, “Stochastic  Mixture Models in Hydrologic and Geophysical Series,” Report submitted to National Science Foundation, Colorado State University, Fort Collins, Colorado, 1981.
  9. J. D. Salas and J. Obeysekera, “Data Generation in Hydrology,” lecture notes for the 1981 summer course on Statistical Techniques for Data  Generation and Forecasting, Colorado State University, Fort Collins, Colorado, July, 1981.
  10. J. D. Salas, J. Obeysekera, and G. Tabios, “Computer Watershed Modeling in Hydrology,” Hydrology and Water Resources Program, Department of  Civil Engineering, Colorado State University, Fort Collins,  Colorado, January 1982.
  11. J. D. Salas, and J. Obeysekera, “On the Aggregation and Disaggregation of Streamflow Time Series” presented at the AGU Spring Philadelphia, AGU Abstract: Eos, Vol 63, No. 18, May, 321 p.,1982
  12. J. D. Salas and J. Obeysekera, “GAR Modeling of Streamflow Series” presented at the AGU Fall Meeting, San Francisco, AGU Abstract: Eos, Vol 63, No. 45, November, 935 p., 198
  13. J. Obeysekera, “Continuous Streamflow Modeling,” lecture notes for a short course on “Computer Modeling for Watershed Hydrology” organized at Colorado State University, Fort Collins, Colorado, June 4-8, 1984.
  14. J. Obeysekera, and V. Yevjevich, “Modeling Water Quality Variables of the Potomac River at the Entrance to its Estuary, Phase I: Trend and Seasonality,” Technical Report Submitted to the District of Columbia Water Resources Research Center, International Water Resources Institute, George Washington University, Washington D.C
  15. J. Obeysekera, “Computed Watershed Modeling,” lecture notes for the 1985 Summer Institute on Flood Technology, Colorado State University, Fort Collins, Colorado, 1985.
  16. N. B. Harmancioglu, J. Obeysekera, and V. Yevjevich, “Measures of Information Transfer Between Variables,” presented at the Fourth International Hydrology Symposium on Multivariate Analysis of  Hydrologic Processes, July, 1985.
  17. J. D. Salas and J. Obeysekera, “Stochastic Modeling of Seasonal Streamflow,” Curso sobre “Utilizacion conjunta de aguas superficiales y  subterraneas”, Valencia – Castellon de la Palna, April 1983.
  18. G. Tabios, J. Obeysekera, H. W. Shen, and J. D. Salas, “Outlier Detection and Effects of Outliers on Parameter Estimation Through Contaminants,” presented at the U.S.-China Bilateral Symposium on the Analysis of Extraordinary Flood Events, Nanjing, China, Oct. 14-18, 1985.
  19. J. Obeysekera, G. Tabios, J. D. Salas, F. Pons, and H. W. Shen, “Operational and Safety Studies of the Valdesia Reservoir, Volume I: Hydrologic Studies,” final report, July, 1986. 
  20. J. Obeysekera, G. Tabios, J. D. Salas, H. W. Shen, and K. Hiew, “Operational and Safety Studies of the Valdesia Reservoir, Volume II: Flood Operation Studies,” final report, July, 1986.
  21. J. D. Salas, and H. W. Shen, and J. Obeysekera, “Operational and Safety Studies of the Valdesia Reservoir, Volume V: Organization,” final report, July, 1986.
  22. J. D. Salas, J. W. Labadie, H. W. Shen J. Obeysekera, and G. Tabios,  “Operational and Safety Studies of the Valdesia Reservoir, Volume VI:  Technology Transfer and Training,” final report, July, 1986.
  23. J. Obeysekera, J. D. Salas, and H. W. Shen, “Normal Operating Plan for the Valdesia Reservoir System: 2. Flood Control,”, July, 1986.
  24. H. W. Shen, J. Obeysekera, and J. D. Salas, “Emergency Operating Plan for the Valdesia Reservoir System,” July, 1986.
  25. J. Obeysekera, G. Tabios, J. D. Salas, and H. W. Shen, “Hydrologic Modeling System (CSU-HMS): Users Manual,” July, 1986.
  26. J. Obeysekera, G. Tabios and J. D. Salas, “On Parameter Estimation of Temporal Rainfall Models” presented at the AGU Spring Meeting, Baltimore, May 18-22, 1987, AGU Abstract: Eos, April 21, 1987
  27. Kent Loftin and J. Obeysekera, “Engineering Considerations in a Multiobjective Framework, paper presented at the Kissimmee River Restoration Symposium, October 17-20, 1988, Orlando, Florida
  28. M. K. Loftin, J. Obeysekera, C. Neidrauer, and S. Sculley, “Hydraulic Performance of the Phase I Demonstration Project,” paper presented at the Kissimmee River Restoration Symposium, October 17-20, 1988, Orlando, Florida
  29. J. Obeysekera, and M. K. Loftin, “Hydrology of the Kissimmee River Basin – Influence of Man-Made and Natural Changes,” paper presented at the Kissimmee River Restoration Symposium, October 17-20, 1988, Orlando, Florida
  30. J. Obeysekera, P. D. Scarlatos, and M. K. Loftin, “Restoration Hydraulics – Hydraulic Energy Gradients Along Pre-project and Revitalized River Sections,” paper presented at the Kissimmee River Restoration Symposium, October 17-20, 1988, Orlando, Florida
  31. M. K. Loftin, L. A. Toth and J. T. B. Obeysekera, “Kissimmee River Restoration – Alternative Plan Evaluation and Preliminary Design Report,”  Final Report, Kissimmee River Restoration Study, South Florida Water Management District, March, 1990.
  32. Jayantha Obeysekera, Robert Barkau and Carlos deRojas, “Linking Hydrologic an Hydraulic Routing Models in Coastal Drainage Basins,” paper presented at the 1991 Annual Meeting of the American Institute of Hydrology, November 3-7, Orlando, Florida.
  33. Calvin Neidrauer, and Jayantha Obeysekera, “Critical design storm duration for estimating peak runoff rates from coastal plains watersheds,” paper presented at the 1991 Annual Meeting of the American Institute of Hydrology, November 3-7, Orlando, Florida.
  34. Abtew, W. and Jayantha Obeysekera,  “Statistical Analysis of Drainage Generation from the Everglades Agricultural Area”.  Paper presented at the 1992 International Winter Meeting of the ASAE, Nashville, TN, Dec. 15-18. Paper No. 92-2568, 1992.
  35. David P. Preusch, Jayantha Obeysekera, John M. Crouse, and Kendrick Logsdon, “Hillsboro Basin Surface Water Management Model,” Proceedings of the Water Resources Sessions at Water Forum ’92, Baltimore, Maryland, American Society of Civil Engineers, August 2-5, 1992
  36. Guardo, M., W. Abtew, J. Roy, and Jayantha Obeysekera,  “The Everglades Nutrient Removal Project: Hydrology, Hydrodynamics and operation”.  Proceedings of Interamerican Dialogue on Water Management, Hotel Inter-Continental, Miami, FL October 27-30, 1993.  pp. 171-181.  South Florida Water Management District, 1993.
  37. Abtew, W., M. Guardo, J. Roy, and Jayantha Obeysekera,  “Hydrologic Network Design for a Constructed Wetland”.  Paper presented at the 1993 International Winter Meeting of the ASAE, Chicago, ILL., Dec. 14-17.  Paper No. 93-2516, 1993
  38. Susan Newman, Joanne Roy, and Jayantha Obeysekera, “The Florida Everglades Nutrient Removal Project,” Proceedings of Hydraulic Engineering ’93, American Society of Civil Engineers, San Francisco, California, July 25-30, 1993
  39. Abtew W., and Jayantha Obeysekera, and M. Chimney, “Lysimeter Studies of Evapotranspiration of Wetland Vegetation in South Florida.  Paper presented at the 1994 International Winter Meeting of the ASAE.  Atlanta Hilton and Towers.  Atlanta, Ga.  Dec. 13-16.  Paper No. 94-2595, 1994.
  40. Abtew, W., M. Chimney, T. Kosier, M. Guardo, S. Newman, and J Obeysekera, “The Everglades nutrient Removal Project: A Constructed Wetland Designed to Treat Agricultural Runoff/Drainage.”  K.L. Campbell (ed.).  Versatility of Wetlands in the Agricultural Landscape.  Proceedings of an International Conference, pp.45-56, 1995.
  41. Randy Van Zee, Jayantha Obeysekera, and C. J. Neidrauer “Simulation of Pre-drainage Hydrology in South Florida”, presented at the AGU Spring Meeting, Baltimore, AGU Abstract: EOS, Vol. 78, No. 17, April, 1997.
  42. C. J. Neidrauer, R. J. Van Zee, and Jayantha Obeysekera, “Estimates of Everglades Hydrology Under Past, Present, and Future Restored Conditions,” presented at the AGU Spring Meeting, Baltimore, AGU Abstract: EOS, Vol. 78, No. 17, April, 1997.
  43. C. W. McVoy, W. A. Park, and Jayantha Obeysekera,  “Soil-based Estimation of Historic Hydrology of the Everglades, 1840-1880,” presented at the AGU Spring Meeting, Baltimore, AGU Abstract: EOS, Vol. 78, No. 17, April, 1997.
  44. A. M. Wasantha Lal, Jayantha Obeysekera, and Randy Van Zee, “Sensitivity and Uncertainty  of a Regional Simulation Model for the Natural System in South Florida, Proceedings of Managing Water: Coping with Scarcity and Abundance, Them A: Water for a Changing Global Community, The 27th Congress of the Int’l Assoc. for Hydraulic Research, Water Resources Engineering Division / ASCE, held August 10-15, 1997, San Francisco, CA.
  45. Jayantha Obeysekera, and Luis G. Cadavid, “Role of Models in Environmental Restoration and Sustainable Development: A Case Study in South Florida,” Proceedings of the Fourth Interamerican Conference on Environmental Issues, December 8-11, 1997, Universidad Simon Bolivar, Caracas, Venezuela.
  46. Luis G. Cadavid, Jayantha Obeysekera, and Calvin J. Neidrauer, “Ecosystem Restoration and Sustainable Development in South Florida,” Proceedings of the Fourth Interamerican Conference on Environmental Issues, December 8-11, 1997, Universidad Simon Bolivar, Caracas, Venezuela.
  47. Jayantha Obeysekera, Paul Trimble, Luis Cadavid, and Cary White, “Use of Climate Outlook for Water Management in South Florida, U.S.A.,” Proceedings of the Engineering Jubilee Conference, June 2000, University of Peradeniya, Sri Lanka.
  48. Mark M. Wilsnack, D. E. Welter, A. M. Montoya, and Jayantha Obeysekera, “Surface Water – Ground Water Modeling Using Enhanced MODFLOW Models in South Florida, Proceedings of AWRA’s Annual Water Resources Conference, November, 2000.
  49. Ken Tarboton, Michelle Irizarry-Ortiz, Daniel Louck, Steven Davis, and Jayantha Obeysekera, Habitat Suitability Indices for Evaluating Water Management Alternatives, Technical Report, Office of Modeling, South Florida Water Management District, West Palm Beach, Florida, December, 2004.
  50. Joseph Park, J. Obeysekera, R. VanZee, “Graph Theory Data Objects Applied to Stream Flow Network Representation in an Integrated Hydrological Model,”  Eos Trans,
    AGU, 86(16), Jt. Assem. Suppl., Abstract H21C-01, 2005
  51. Joseph Park, J. Obeysekera., R. VanZee, “Multilayer Control Hierarchy in an Integrated Hydrological Model,” Eos Trans, AGU, 86(16), Jt. Assem. Suppl,  Abstract H13D-06, 2005
  52. J. Obeysekera, J. Park, M. Irizarry-Ortiz, P. Trimble, J. Barnes, J. VanArman, W. Said, and E. Gadzinski, 2011. Past and Projected Trends in Climate and Sea Level for South Florida.  Interdepartmental Climate Change Group. South Florida Water Management District, West Palm Beach, Florida, June 13, 2011

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