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ResearcherID: http://www.researcherid.com/rid/A-2867-2008

ORCID:   http://orcid.org/0000-0002-9903-9321

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Journal Papers (Total 103)

103. Bukhary, S.; Batista, J.; Ahmad, S. (2020) Water -Energy -Carbon Nexus Approach for Sustainable Large-Scale Drinking Water Treatment Operation, Journal of Hydrology. 587-124953. doi:10.1016/j.jhydrol.2020.124953

102. Bukhary, S.; Batista, J.; Ahmad, S. (2020) Design Aspects, Energy Consumption Evaluation, and Offset for Drinking Water Treatment Operation. Water 12(6), 1772; doi:10.3390/w12061772

101. Gregory A, Chen C, Wu R, Miller S, Ahmad S, Anderson JW, Barrett H, Benedict K, Cadol D, Dascalu SM, Delparte D, Fenstermaker L, Godsey S, Harris FC Jr, McNamara JP, Tyler SW, Savickas J, Sheneman L, Stone M and Turner MA (2020) Efficient Model-Data Integration for Flexible Modeling, Parameter Analysis and Visualization, and Data Management. Frontiers in Water 2:2. doi: 10.3389/frwa.2020.00002

100 Bailey J, Ahmad S, Batista J (2020) The Impact of Advanced Treatment Technologies on the Energy Use in Satellite Water Reuse Plants. Water, 12, 366; doi:10.3390/w12020366

99. Bukhary, S.; Batista, J.; Ahmad, S. (2020) An Analysis of Energy Consumption and the Use of Renewables for a Small Drinking Water Treatment Plant. Water, 12, 28. doi: 10.3390/w12010028

98. Thakur B, Kalra A, Ahmad S, Lamb K, Lakshmi V (2020). Bringing Statistical Learning Machines together for Hydro-climatological Predictions – Case Study for Sacramento San Joaquin River Basin, California. Journal of Hydrology: Regional Studies. doi: 10.1016/j.ejrh.2019.100651.

97. Amoueyan E., Ahmad S., Eisenberg J., Gerrity D. (2019) A Dynamic Quantitative Microbial Risk Assessment for Norovirus in Potable Reuse Systems, Microbial Risk Analysis. https://doi.org/10.1016/j.mran.2019.100088

96. Choubin B., Alamdarloo E.H., Mosavi A., Hosseini F.S., Ahmad S., Goodarzi M., Shamshirband S. (2019) Spatiotemporal dynamics assessment of snow cover to infer snowline elevation mobility in the mountainous regions. Cold Regions Science and Technology. https://doi.org/10.1016/j.coldregions.2019.102870

95. Dow C, Ahmad S, Stave K, Gerrity D. (2019) Evaluating the Sustainability of IPR and DPR: A Southern Nevada Case Study. AWWA Water Science. https://doi.org/10.1002/aws2.1153

94. Saifullah M., Liu S., Tahir AA, Zaman M, Ahmad S, Adnan M, Chen D, Ashraf M and Mehmood A. (2019). Development of Threshold Levels and a Climate-Sensitivity Model of the Hydrological Regime of the High-Altitude Catchment of the Western Himalayas, Pakistan. Water, 11(7), 1454; doi:10.3390/w11071454

93. Amoueyan E, Ahmad S, Eisenberg J NS, Gerrity D. (2019) Equivalency of Indirect and Direct Potable Reuse Paradigms based on a Quantitative Microbial Risk Assessment Framework. Microbial Risk Analysis, https://doi.org/10.1016/j.mran.2019.06.003

92. Tamaddun K., Kalra A., Kumar S., Ahmad s., (2019) CMIP5 Models’ Ability to Capture Observed Trends under the Influence of Shifts and Persistence: An In-depth Study on the Colorado River Basin.  Journal of Applied Meteorology and Climatology, https://doi.org/10.1175/JAMC-D-18-0251.1

91 Rahaman, M. M., Thakur, B., Kalra, A., & Ahmad, S. (2019). Modeling of GRACE-Derived Groundwater Information in the Colorado River Basin. Hydrology, 6(1), 19.

90 Yang, T., Li, Q., Ahmad, S., Zhou, H., & Li, L. (2019). Changes in Snow Phenology from 1979 to 2016 over the Tianshan Mountains, Central Asia. Remote Sensing, 11(5), 499.

89. Chen, C., Kalra, A., & Ahmad, S. (2019). Hydrologic responses to climate change using downscaled GCM data on a watershed scale. Journal of Water and Climate Change, 10(1), 63-77.

88. Nazari-Sharabian, M., Taheriyoun, M., Ahmad, S., Karakouzian, M., & Ahmadi, A. (2019). Water Quality Modeling of Mahabad Dam Watershed–Reservoir System under Climate Change Conditions, Using SWAT and System Dynamics. Water, 11(2), 394.

87. Babaei, H., Nazari-Sharabian, M., Karakouzian, M., & Ahmad, S. (2019). Identification of Critical Source Areas (CSAs) and Evaluation of Best Management Practices (BMPs) in Controlling Eutrophication in the Dez River Basin. Environments, 6(2), 20.

86. Tamaddun, K. A., Kalra, A., Bernardez, M., & Ahmad, S. (2019). Effects of ENSO on Temperature, Precipitation, and Potential Evapotranspiration of North India’s Monsoon: An Analysis of Trend and Entropy. Water, 11(2), 189.

85 Tamaddun, K.A., Kalra, A. & Ahmad, S. (2019) Spatiotemporal Variation in the Continental US Streamflow in Association with Large-Scale Climate Signals Across Multiple Spectral Bands, Water Resour Manage. https://doi.org/10.1007/s11269-019-02217-8

84. Wu, R., Yang, L., Chen, C., Ahmad, S., Dascalu, S. M., and Harris Jr., F. C. (2018) Modeling Error Learning based Post-Processor Framework for Hydrologic Models Accuracy Improvement, Geoscientific Model Development, https://doi.org/10.5194/gmd-2018-136.

83. Nyaupane, N.; Thakur, B.; Kalra, A.; Ahmad, S. (2018) Evaluating Future Flood Scenarios Using CMIP5 Climate Projections. Water, 10, 1866.

82. Nazari-Sharabian M, Ahmad S, Karakouzian M (2018) Climate Change and Eutrophication: A Short Review. Engineering, Technology & Applied Science Research. 8(6)3668-3672.

81. Ghumman A R, Iqbal M, Ahmad S, Hashmi H. N (2018) Experimental and Numerical Investigations for Optimal Emitter Spacing in Drip Irrigation, Irrigation and Drainage. 67: 724–737. DOI: 10.1002/ird.2284

80. Ateeq-ur-Rauf, Ghumman A R, Ahmad S, Hashmi H. N (2018) Performance assessment of artificial neural networks and support vector regression models for stream flow predictions, Environmental Monitoring and Assessment. DOI : 10.1007/s10661-018-7012-9

79. Bhandari  S., Kalra A, Tamaddun K., & Ahmad S. (2018). Relationship between Ocean-Atmospheric Climate Variables and Regional Streamflow of the Conterminous United States. Hydrology. DOI: 10.3390/hydrology5020030

78. Thakali R, Kalra A, Ahmad S, and Qaiser K (2018) Management of an Urban Stormwater System Using Projected Future Scenarios of Climate Models: A Watershed-Based Modeling Approach. Open Water Journal 5 (2).

77.  Ghumman, A.R., Ahmad, S., Rahman, S., Khan, Z. (2018) Investigating management of Irrigation Water in the Upstream Control System of the Upper Swat Canal. Iran Journal of Science and Technology, Transactions of Civil Engineering. https://doi.org/10.1007/s40996-018-0097-0

76. Kandissounon GA, Kalra A, Ahmad S (2018). Integrating System Dynamics and Remote Sensing to Estimate Future Water Usage and Average Surface Runoff in Lagos, Nigeria. Civil Engineering Journal 4(2) 378-393.
http://dx.doi.org/10.28991/cej-030998

75. Tamaddun K, Kalra A, Ahmad S (2018) Potential of rooftop rainwater harvesting to meet outdoor water demand in arid regions, Journal of Arid Land, 10(1): 68-83.    https://doi.org/10.1007/s40333-017-0110-7.

74. Bukhary S, Batista J, Ahmad S (2018) Analyzing Land and Water Requirements for Solar Deployment in the Southwestern United States, Renewable and Sustainable Energy Reviews, 82(3): 3288-3305. https://doi.org/10.1016/j.rser.2017.10.016

73. Pathak, Pratik; Kalra, Ajay; Lamb, Kenneth; Miller, William; Ahmad, Sajjad; Amerineni, Rajesh; Ponugoti, Devi Priya (2017) Climatic variability of the Pacific and Atlantic Oceans and western U.S. snowpack, International Journal of Climatology doi:10.1002/joc.5241

72. Kalra A, Sagarika S, Pathak P, Ahmad S (2017) Hydro-climatological changes in the Colorado River Basin over a century, Hydrological Sciences Journal 10.1080/02626667.2017.1372855

71. Amoueyan E, Ahmad S, Eisenberg J NS, Pecson B, Gerrity D. (2017) Quantifying pathogen risks associated with potable reuse: A risk assessment case study for Cryptosporidium, Water Research http://doi.org/10.1016/j.watres.2017.04.048

70. Tamaddun K, Kalra A, Bernardez M, Ahmad S (2017) Multi-scale Correlation between Western U.S. Snow Water Equivalent and ENSO/PDO Using Wavelet Analyses, Water Resources Management 10.1007/s11269-017-1659-9

69. Chen C, Ahmad S, Kalra A, Xu Z (2017) A dynamic model for exploring water-resource management scenarios in an inland arid area: Shanshan County, Northwestern China. Journal of Mountain Science 14. DOI: 10.1007/s11629-016-4210-1

68. Pathak P, Kalra A, and Ahmad S (2017) Temperature and Precipitation changes in the Midwestern United States: Implications for water management, International Journal of Water Resources Development, 33(6). 10.1080/07900627.2016.1238343.

67. Tamaddun K, Kalra A, Ahmad S. (2017) Wavelet analysis of western U.S. streamflow with ENSO and PDO, Journal of Water and Climate Change, 8(1) 26-39. DOI: 10.2166/wcc.2016.162

66. Thakali R, Kalra A, Ahmad S (2016) Understanding the Effects of Climate Change on Urban Stormwater Infrastructures in the Las Vegas Valley, Hydrology, 3(4), 34; doi:10.3390/hydrology3040034.

65. Han Jian-gang, Fan Di-wu, Li Xiu-zhi, Zhu Yong-li, Ahmad Sajjad (2016) Mechanism of Cr6+, Mn2+, Cu2+ and Cd2+ adsorption by a low-cost rice husk-derived biochar in aqueous solutions. Fresenius Environmental Bulletin, 25(8):2736-2744 .

64. Pathak P, Kalra A, Ahmad S, Bernardez M (2016) Wavelet-aided analysis to estimate seasonal variability and dominant periodicities in temperature, precipitation, and streamflow in the Midwestern United States, Water Resources Management, 10.1007/s11269-016-1445-0.

63. Tamaddun K, Kalra A, Ahmad S. (2016) Identification of Streamflow Changes across the Continental United States Using Variable Record Lengths. Hydrology. 3(2):24. doi:10.3390/hydrology3020024

62. F Zhang, S Ahmad, H Zhang, X Zhao, X Feng, L Li (2016). Simulating Low and High Streamflow Driven by Snowmelt in an Insufficiently Gauged Alpine Basin, Stochastic Environmental Research and Risk Assessment, 30: 59-75.  DOI 10.1007/s00477-015-1028-2.

61. Carrier C., Kalra A., and Ahmad S. (2016)  Long-Range Precipitation Forecasts Using Paleoclimate Reconstructions in the Western United States, Journal of Mountain Science. 13(4):614-632.   DOI:10.1007/s11629-014-3360-2.

60.  Ahmad S. (2016) Managing Water Demands for a Rapidly Growing City in Semi-Arid Environment: Study of Las Vegas, Nevada, International Journal of Water Resources and Arid Environments, 5(1):35-42.

59. Sagarika S., Kalra A., and Ahmad S., (2015) Pacific Ocean SST and Z500 climate variability and western U.S. seasonal streamflow, International Journal of Climatology, 36, 1515-1533. doi:10.1002/joc.4442.

58. Sagarika S., Kalra A., and Ahmad S., (2015) Interconnections between oceanic-atmospheric indices and variability in the U.S. streamflow, Journal of Hydrology, 525: 724-736. 10.1016/j.jhydrol.2015.04.020.

57. E. Michael Nussbaum; Marissa C. Owens; Gale M. Sinatra; Abeera P. Rehmat; Jacqueline C. Cordova; Sajjad Ahmad; Fred C. Harris; Sergiu M. Dascalu (2015) Losing the Lake:  Simulations to Promote Gains in Student Knowledge & Interest About Climate Change, International Journal of Environmental & Science Education 10(5): 789-811. doi: 10.12973/ijese.2015.277a

56. Rusuli, Y., Li, L., Ahmad, S., & Zhao, X. (2015) Dynamics model to simulate water and salt balance of Bosten Lake in Xinjiang, China, Environmental Earth Sciences. 74(3): 2499-2510.  Doi 10.1007/s12665-015-4257-2

55. Jie Ma, Lan H. Li, Ling P. Guo, Lei Bai, Jian R. ZHANG, Zhong H. Chen, and Sajjad AHMAD (2015) Variation of Soil Nutrients in Grasslands along the Kunes River in Xinjiang, China. Chemistry and Ecology. 31(2): 111-122. DOI:10.1080/02757540.2014.917170.

54. Sagarika S., Kalra A., and Ahmad S., (2014), Evaluating the effect of persistence on long-term trends and analyzing step changes in streamflows of the continental United States, Journal of Hydrology, 517:36-53. http://dx.doi.org/10.1016/j.jhydrol.2014.05.002

53. Yacouba Moumouni, Sajjad Ahmad, R. Jacob Baker (2014), A System Dynamics Model for Energy Planning in Niger, International Journal of Energy and Power Engineering. 3(6): 308-322. doi: 10.11648/j.ijepe.20140306.14

52. Bahram CHOUBIN, Shahram KHALIGHI-SIGAROODI, Arash MALEKIAN, Sajjad AHMAD, Pedram ATTAROD (2014) Drought forecasting in a semi-arid watershed using climate signals: a neuro-fuzzy modeling approach, Journal of Mountain Science,  11(6): 1593-1605. DOI: 10.1007/s11629-014-3020-6.

51. Ghumman A.R., Ahmad S., Khan R.A., and Hashmi H.N. (2014). Comparative Evaluation of Implementing Participatory Irrigation Management in Punjab Pakistan, Irrigation and Drainage. 63 (3):315-327. DOI: 10.1002/ird.1809.

50. FeiYun ZHANG, LanHai LI, Sajjad AHMAD, XueMei LI (2014) Using Path Analysis to Identify the Influence of Climatic Factors on Spring Peak Flow Dominated by Snowmelt in an Alpine Watershed, Journal of Mountain Science. 11(4): 990-1000. DOI: 10.1007/s11629-013-2789-z.

49. LI Lanhai, SHANG Ming, ZHANG Minsheng, AHMAD Sajjad, HUANG Yue (2014). Snowmelt runoff simulation driven by the APHRODITE precipitation dataset, Advances in Water Science, 25(1): 53-59.

48. Kalra A, Ahmad S and Nayak A (2013), Increasing streamflow forecast lead time for snowmelt driven catchment based on large scale climate patterns, Advances in Water Resources, 53: 150-162.

47. Dawadi S and Ahmad S (2013), Evaluating the Impact of Demand-Side Management on Water Resources under Changing Climatic Conditions and Increasing Population, Journal of Environmental Management, 114: 261-275.

46. Kamal Qaiser, Sajjad Ahmad, Walter Johnson and Jacimaria Batista (2013), Evaluating Water Conservation and Reuse Policies using a Dynamic Water Balance Model, Environmental Management, 51(2): 449-458.

45. Christopher Carrier, Ajay Kalra, and Sajjad  Ahmad, (2013), Using Paleo Reconstructions to Improve Streamflow Forecast Lead-Time in the Western United States, Journal of the American Water Resources Association (JAWRA) 49(6): 1351-1366. doi:10.1111/jawra.12088.

44. Guangyang Wu, Lanhai Li, Sajjad Ahmad, Xi Chen, Xiangliang Pan (2013), A Dynamic Model for Vulnerability Assessment of Regional Water Resources in Arid Areas: A Case Study of Bayingolin, China, Water Resources Management, 27(8): 3085-3101.

43. Ajay Kalra, Lanhai Li, Xuemei Li, Sajjad Ahmad(2013), Improving streamflow forecast lead time using oceanic-atmospheric oscillations for Kaidu River Basin, Xinjiang, China, ASCE Journal of Hydrologic Engineering, 18(8): 1031-1040; doi: 10.1061/(ASCE)HE.1943-5584.0000707

42. Alexander Paz, Pankaj Maheshwari, Pushkin Kachroo and Sajjad Ahmad (2013), Estimation of Performance Indices for the Planning of Sustainable Transportation Systems, Advances in Fuzzy Systems, doi: http://dx.doi.org/10.1155/2013/601468

41. Ajay Kalra, William P. Miller, Kenneth W. Lamb, Sajjad Ahmad, Thomas Piechota (2013), Using large scale climatic patterns for improving long lead time streamflow forecasts for Gunnison and San Juan River Basins, Hydrological Processes, 27(11): 1543-1559.

40. Kalra A and Ahmad S (2012), Estimating annual precipitation for the Colorado River Basin using oceanic-atmospheric oscillations, Water Resources Research, 48, W06527. doi:10.1029/2011WR010667.

39. Dawadi S and Ahmad S (2012), Changing Climatic Conditions in the Colorado River Basin: Implications for Water Resources Management, Journal of Hydrology, 430–431: 127–141; doi: 10.1016/j.jhydrol.2012.02.010.

38.  Ali Mirchi, Kaveh Madani, David Watkins, Jr., and Sajjad Ahmad (2012), Synthesis of System Dynamics Tools for Holistic Conceptualization of Water Resources Problems, Water Resources Management, 26(9): 2421-2442. DOI: 10.1007/s11269-012-0024-2.

37. Shrestha E, Ahmad S, Johnson W, and Batista J.R, (2012). The carbon footprint of water management policy options, Energy Policy 42: 201-212; doi: 10.1016/j.enpol.2011.11.074.

36. Kalra A. and Ahmad S. (2011), Evaluating changes and estimating seasonal precipitation for Colorado River Basin using stochastic non-parametric disaggregation technique, Water Resources Research, 47, W05555.

35. Puri, S., Stephen, H., Ahmad, S. (2011), Relating TRMM Precipitation Radar Land Surface Backscatter Response to Soil Moisture in the Southern United States, Journal of Hydrology, 402(1-2): 115-125.

34. Puri, S., Stephen, H., Ahmad, S. (2011), Relating TRMM Precipitation Radar Backscatter to Water Stage in Wetlands, Journal of Hydrology, 401(3-4): 240-249.

33. Arjun K. Venkatesan, Sajjad Ahmad, Walter Johnson and Jacimaria. R. Batista (2011), Salinity Reduction and Energy Conservation in Direct and Indirect Potable Water Reuse, Desalination, 272 (1-3):120-127.

32. Eleeja Shrestha, Sajjad Ahmad, Walter Johnson, Pramen Shrestha, and Jacimaria R. Batista, (2011), Carbon Footprint of Water Conveyance versus Desalination as Alternatives to Expand Water Supply, Desalination, 280 (1-3): 33-43.

31. Arjun K. Venkatesan, Sajjad Ahmad, Walter Johnson and Jacimaria. R. Batista (2011), System Dynamics Model to Forecast Salinity Load to the Colorado River Due to Urbanization within the Las Vegas Valley, Science of the Total Environment 409(13): 2616-2625.

30. Kamal Qaiser, Sajjad Ahmad, Walter Johnson and Jacimaria Batista (2011), Evaluating the impact of water conservation on fate of outdoor water use: A study in an arid region, Journal of Environmental Management 92(8): 2061-2068.

29. William Forsee and Sajjad Ahmad (2011), Evaluating Urban Stormwater Infrastructure Design in Response to Projected Climate Change, ASCE Journal of Hydrologic Engineering 16(11): 865-873. doi:10.1061/(ASCE)HE.1943-5584.0000383.

28. Melesse, A.M., Ahmad, S., McClain, ME., Wang, X., Lim, YH. (2011), Suspended Sediment Load Prediction of River Systems: An Artificial Neural Networks Approach, Agricultural Water Management 98(5): 855-866.

27. Eleeja Shrestha, Sajjad Ahmad, Walter Johnson, and Jacimaria R. Batista, (2011). The carbon footprint associated with water management policy options in the Las Vegas Valley, Nevada, Journal of the Nevada Water Resources Association, 6(1): 2-9.

26. Ahmad S, Kalra A and Stephen H (2010), Estimating Soil Moisture using Remote Sensing Data: A Machine Learning Approach, Advances in Water Resources. 33(1) 69-80.

25. Haroon Stephen, Sajjad Ahmad, Thomas C. Piechota, Tang C., (2010), Relating Surface Backscatter Response from TRMM Precipitation Radar to Soil Moisture: Results over a Semi-Arid Region, Hydrology and Earth System Sciences, 14(2), 193-204.

24. Haroon Stephen, Sajjad Ahmad, and Thomas C. Piechota (2010), Land Surface Brightness Temperature Modeling Using Solar Insolation, IEEE Transactions on Geoscience and Remote Sensing. 48(1) 491-498.

23. Ahmad S and Prashar D (2010), Evaluating Municipal Water Conservation Policies Using a Dynamic Simulation Model, Water Resources Management 24(13): 3371-3395.

22. Muhammad Masood Ahmad, Abdul Razzaq Ghumman, Sajjad Ahmad, and Hashim Nisar Hashmi (2010), Estimation of a Unique Pair of Nash Model Parameters: An Optimization Approach, Water Resources Management 24(12) 2971-2989.

21. Kalra A and Ahmad S (2009), Using oceanic-atmospheric oscillations for long lead-time stream flow forecasting, Water Resources Research, 45, W03413.

20. Masood Ahmad, Razzaq Ghumman and Sajjad Ahmad (2009), Estimation of Clark’s Instantaneous Unit Hydrograph Parameters and Development of Direct Surface Runoff Hydrograph, Water Resources Management, 23(12):2417-2435.

19. Neeraj Vedwan, Sajjad Ahmad, Fernando Miralles-Wilhelm, Kenneth Broad, David Letson, Guillermo Podesta (2008), Institutional evolution in Lake Okeechobee Management in Florida: Characteristics, Impacts, and Limitations, Water Resources Management, 22(6): 699-718.

18. Ahmad S and Franz GA (2008), Raising Taxes to Reduce Smoking Prevalence: A Simulation of the Anticipated Health and Economic Impacts, Public Health, 122 (1): 3-10.

17. Daniel Impoinvil; Robert Duncan; Rinku Roy Chowdhury; Joseph Keating; Gabriel Cardenas; Sajjad Ahmad; Charles Mbogo; John Githure; and John Beier (2007). The association between distance to water pipes and water bodies positive for anopheline mosquitoes (Diptera: Culicidae) in the urban community of Malindi, Kenya” Journal of Vector Ecology 32 (2): 319-327.

16. Daniel E. Impoinvil, Sajjad Ahmad, Adriana Troyo, Joseph Keating, Andrew K. Githeko, Charles M, Mbogo,Lydiah Kibe, John I. Githure, Adel M. Gad, Ali N. Hassan, Laor Orshan, Alon Warburg, Olger Calderón-Arguedas, Victoria M. Sánchez-Loría,Rosanna Velit-Suarez, Dave D. Chadee, Robert J. Novak, and John C. Beier (2007). Comparison of mosquito control programs in seven urban sites in Africa, the Middle East, and the Americas, Health Policy, 83 (2-3): 196-212.

15. Mosquera-Machado S.  and Ahmad S. (2007). Flood hazard assessment of Atrato river in Colombia, Water Resources Management. 21(3): 591-609.

14. Ahmad S and John Billimek (2007), Limiting youth access to tobacco: Comparing the long-term health impacts of increasing cigarette excise taxes and raising the legal smoking age to 21, Health Policy, 80: 378-391.

13. Ahmad S. and Simonovic S. P. (2006), An intelligent decision support system for management of floods, Water Resources Management, 20 (3): 391-410.

12. Ahmad S. and Simonovic S. P. (2005), An Artificial Neural Network model for generating hydrograph from hydro-meteorological parameters, Journal of Hydrology, 315 (1-4), 236-251.

11. Simonovic S. P. and Ahmad S. (2005), Computer-based model for flood evacuation emergency planning, Natural Hazards, 34(1) 25-51.

10. Tengs, T., Ahmad, S, Savage, J, Moore, R., and Gage, E. (2005), The AMA Proposal to Mandate Nicotine Reduction in Cigarettes: A Simulation of the Population Health Impacts, Preventive Medicine, 40(2) 170-180.

9. Ahmad S. (2005), The Cost-Effectiveness of Raising the Legal Smoking Age in California, Medical Decision Making, 25(3) 330-340.

8. Ahmad S. (2005), Closing the youth access gap: The projected health benefits and cost savings of a national policy to raise the legal smoking age to 21 in the United States, Health Policy, 75 (1): 74-84

7. Ahmad S., (2005), Increasing excise taxes on cigarettes in California: a dynamic simulation of health and economic impacts, Preventive Medicine, 41(1) 276-283.

6. Ahmad S and John Billimek (2005), Estimating the Health Impacts of Tobacco Harm Reduction: A Simulation modeling Approach, Risk Analysis, 25(4), 801-812.

5. Ahmad S. and Simonovic S. P. (2004), Spatial system dynamics: a new approach for simulation of water resources systems, ASCE Journal of Computing in Civil Engineering, 18(4) 331-340.

4. Tengs T., Ahmad, S, Moore, R., and Gage, E. (2004), Federal Policy Mandating Safer Cigarettes: A Simulation of the Anticipated Population Health Gains or Losses, Journal of Policy Analysis and Management, 23 (4) 857-872.

3. Ahmad S. and Simonovic S. P., (2001) Integration of heuristic knowledge with analytical tools for selection of flood control measures, Canadian Journal of Civil Engineering, 28(2), 208-221.

2. Ahmad S. and Simonovic S. P. (2001), A decision support tool for evaluation of impacts of flood management policies. Hydrological Science and Technology, (1-4), 11-22.

1. Ahmad S. and Simonovic S. P. (2000), System dynamics modeling of reservoir operations for flood management, ASCE Journal of Computing in Civil Engineering, 14(3), 190-198.

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Conference Proceedings (Total 85)

85. Bukhary, S., Batista, J., & Ahmad, S. (2019). Using Solar and Wind Energy for Water Treatment in the Southwest. World Environmental and Water Resources Congress, Pittsburg, PA. pp. 410-416.

84. Saher, R., Ahmad, S., Stephen, H. (2019). Analysis of Changes in Surface Energy Fluxes Due to Urbanization in Las Vegas. World Environmental and Water Resources Congress, Pittsburg, PA. pp. 175-186.

83. Tamaddun, K. A., Kalra, A., & Ahmad, S. (2019). Ambient Air Quality of Major Indian States and Cities: A Spatiotemporal Analysis. World Environmental and Water Resources Congress, Pittsburg, PA. pp. 175-186. pp. 46-58.

82. Shakya, S., Tamaddun, K. A., Stephen, H., & Ahmad, S. (2019). Urban Runoff and Pollutant Reduction by Retrofitting Green Infrastructure in Storm Water Management System. World Environmental and Water Resources Congress, Pittsburg, PA. pp. 93-104.

81. Black, A., Ahmad, S., & Stephen, H. (2019). Urban Heat Island Intensity Mapping of Las Vegas Using Landsat Thermal Infrared Data. World Environmental and Water Resources Congress, Pittsburg, PA. pp. 397-409.

80. Mistry, G., Stephen, H., & Ahmad, S. (2019). Impact of Precipitation and Agricultural Productivity on Groundwater Storage in Rahim Yar Khan District, Pakistan. World Environmental and Water Resources Congress, Pittsburg, PA. pp. 104-117.

79. Achhami, A., Ahmad, S., & Stephen, H. (2019). Relating Urbanization and Irrigation Water Demand in Gujranwala District of Pakistan. World Environmental and Water Resources Congress, Pittsburg, PA. pp. 1-14.

78. Rahaman, M. M., Lamichhane, G. R., Shrestha, A., Thakur, B., Kalra, A., & Ahmad, S. (2019). Using SWAT to Simulate Streamflow in Trinity River Basin, Texas, USA. World Environmental and Water Resources Congress, Pittsburg, PA. pp. 421-435.

77. Joshi, N., Lamichhane, G. R., Rahaman, M. M., Kalra, A., & Ahmad, S. (2019). Application of HEC-RAS to Study the Sediment Transport Characteristics of Maumee River in Ohio. World Environmental and Water Resources Congress, Pittsburg, PA. pp. 257-267.

76. Joshi, N., Bista, A., Pokhrel, I., Kalra, A., & Ahmad, S. (2019). Rainfall-Runoff Simulation in Cache River Basin, Illinois, Using HEC-HMS. World Environmental and Water Resources Congress, Pittsburg, PA. pp. 348-360.

75. Siyal, A. A., Bhatti, A. M., Babar, M. M., Ansari, K., Saher, R., & Ahmad, S. (2019). Environmental Impact of Conversion of Natural Wetland into Reservoir: A Case Study of Chotiari Reservoir in Pakistan. World Environmental and Water Resources Congress, Pittsburg, PA. pp. 15-27.

74. Burian, S.J., Ward, M., Ahmad, S., Stevenson, D.L., Banuri, T., Chaudhry, M.A., Mahar, R.B., Ullman, J.D. (2018) Assessment of a peer mentoring program to build capacity for course development and delivery. ASEE Annual Conference and Exposition, Salt Lake City, UT 23 June 2018

73. Shakya S, Kalra A, Ahmad S (2018) A Dynamic Simulation Approach to Analyze Hydro-electric Energy Production under Variable Flow and Demand Conditions. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

72. Rind MA, Ansari K, Saher R, Shakya S, Ahmad S (2018) 2D Hydrodynamic Model for Flood Vulnerability Assessment of Lower Indus River Basin, Pakistan. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

71. Tamaddun KA, Ahmed W, Burian S, Kalra A, Ahmad S (2018) Reservoir Regulations of the Indus River Basin under Different Flow Conditions. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

70. Mistry G, Kalra A, Ahmad S (2018) Financial management of a hypothetical water network using System Dynamics. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

69. Achhami A, Kalra A, Ahmad S (2018) Dynamic simulation of Lake Mead water levels in response to climate change and varying demands. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

68. Bukhary S, Batista J, Ahmad S (2018) Sustainable Desalination of Brackish Groundwater for the Las Vegas Valley. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

67. Ma J, Li L , Liu X, Achhami A, Ahmad S (2018) Characteristics of plant Carbon, Nitrogen and Phosphorus stoichiometry in relation to different grassland communities in China. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

66. Ahmed W, Rais MN, Bano R, Tamaddun K, Ahmad S (2018) Water sharing, governance and management among the provinces in Pakistan using evidence based decision support system. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

65. Siyal AA, Misrani DJ, Dars GH, and Ahmad S (2018) Application of GIS and Remote Sensing for identification of potential runoff harvesting sites: A case study of Karoonjhar mountainous area, Pakistan. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

64. Bahaddin B, Mirchi A, Watkins D, Ahmad S, Rich E, Madani K (2018) System Archetypes in Water Resource Management. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

63. Bhandari R; Thakali R; Kandissounon GA; Kalra A and Ahmad S (2018) Effects of Soil Data Resolution on the Simulated Stream Flow and Water Quality: Application of Watershed-based SWAT Model. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

62. Bhandari R; Parajuli R; Lamichhane GR; Alyami A; Kalra A; Ahmad S and Ritu Gupta R (2018) Utilizing Civil Geo-HECRAS Capabilities for Floodplain Mapping of Colorado River in Texas during Hurricane Harvey. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

61. Nyaupane N, Mote SR, Bhandari M, Kalra A and Ahmad S (2018) Rainfall-Runoff Simulation Using Climate Change based Precipitation Prediction in HEC-HMS Model for Irwin Creek, Charlotte, North Carolina. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

60. Nyaupane N, Bhandari S, Rahaman MM, Wagner K, Kalra A, Ahmad S and Gupta R (2018) Flood Frequency Analysis Using Generalized Extreme Value Distribution and Floodplain Mapping for Hurricane Harvey in Buffalo Bayou. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

59. Bhandari S; Jobe A; Thakur B; Kalra A and Ahmad S (2018) Flood damage reduction in urban areas with use of low impact development designs. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

58. Thakur B, Parajuli R, Kalra A & Ahmad S (2018) Exploring CCHE2D and its sediment modelling capabilities. World Environmental and Water Resources Congress, Minniapolis, MN June 3-7, 2018.

57. Thakali, R., Kalra, A., & Ahmad, S. (2017). Urban Stormwater runoff under changing climatic conditions. XVI World Water Congress, Cancun, Mexico. 29 May- 3 June, 2017. pp (10)

56. Tamaddun, K., Kalra, A., & Ahmad, S. (2017). Potential of Rainwater Harvesting in meeting the domestic outdoor demand: a study in dry and wet regions of the United States. XVI World Water Congress, Cancun, Mexico. 29 May- 3 June, 2017. pp (16)

55. Stephen, H., Kim, Y., Ahmad, S. (2017) Study of Potential Integrated Management of Water Resources in Las Vegas Valley. XVI World Water Congress, Cancun, Mexico. 29 May- 3 June, 2017. pp (13)

54. Burian, S.J., Ward, M., Banuri, T.J., Ahmad, S., Mahar, R.B., VanDerslice, J.A., Ansari, K., Qureshi, A.L., Stevenson, D.L.(2017), Higher education capacity building in water resources engineering and management to support achieving the sustainable development goal for water in Pakistan, 124th ASEE Annual Conference and Exposition, Conference Proceedings, Columbus, USA –June 25-28, 2017. ISSN: 2153-5965

53. Zhang, F., Li, L., Ahmad, S. (2017) Streamflow Pattern Variations Resulting from Future Climate Change in Middle Tianshan Mountains Region in China, World Environmental and Water Resources Congress, Sacramento, CA May 21-25, 2017, pp. 437-446. DOI: 10.1061/9780784480618.044

52. Bukhary, S., Batista, J., Ahmad, S. (2017), Evaluating the Feasibility of Photovoltaic-Based Plant for Potable Water Treatment, World Environmental and Water Resources Congress, Sacramento, CA May 21-25, 2017, pp. 256-263. DOI: 10.1061/9780784480618.025

51. Chen, C., Kalra, A., Ahmad, S. (2017), A conceptualized groundwater flow model development for integration with surface hydrology model, World Environmental and Water Resources Congress, Sacramento, CA May 21-25, 2017, pp. 175-187. DOI: 10.1061/9780784480601.017

50. Tamaddun, K.A., Kalra, A., Ahmad, S. (2017), Multi-scale correlation analyses between California streamflow and ENSO/PDO, World Environmental and Water Resources Congress, Sacramento, CA May 21-25, 2017, pp. 93-103. DOI: 10.1061/9780784480601.009

49. Jobe, A., Bhandari, S., Kalra, A., Ahmad, S. (2017), Ice-Cover and Jamming Effects on Inline Structures and Upstream Water Levels, World Environmental and Water Resources Congress, Sacramento, CA May 21-25, 2017, pp. 270-279. DOI: 10.1061/9780784480625.025

48. Thakali, R., Bhandari, R., Arif-Deen Kandissounon, G.-A., Kalra, A., Ahmad, S. (2017), Flood Risk Assessment Using the Updated FEMA Floodplain Standard in the Ellicott City, Maryland, United States, World Environmental and Water Resources Congress, Sacramento, CA May 21-25, 2017, pp. 280-291. DOI: 10.1061/9780784480625.026

47. Bhandari, M., Nyaupane, N., Mote, S.R., Kalra, A., Ahmad, S. (2017), 2D Unsteady Flow Routing and Flood Inundation Mapping for Lower Region of Brazos River Watershed, World Environmental and Water Resources Congress, Sacramento, CA May 21-25, 2017, pp. 292-303. DOI: 10.1061/9780784480625.027

46. Thakur, B., Parajuli, R., Kalra, A., Ahmad, S., Gupta, R. (2017), Coupling HEC-RAS and HEC-HMS in Precipitation Runoff Modelling and Evaluating Flood Plain Inundation Map, World Environmental and Water Resources Congress, Sacramento, CA May 21-25, 2017, pp. 240-251. DOI: 10.1061/9780784480625.022

45. Thakur, B., Pathak, P., Kalra, A., Ahmad, S., Bernardez, M. (2017), Using Wavelet to Analyze Periodicities in Hydrologic Variables, World Environmental and Water Resources Congress, Sacramento, CA May 21-25, 2017, pp. 499-510. DOI: 10.1061/9780784480618.050

44. Nyaupane, N., Thakali, R., Kalra, A., Mastino, L., Velotta, M., Ahmad, S. (2017), Response of climate change on Urban Watersheds: A case study for Las Vegas, NV, World Environmental and Water Resources Congress, Sacramento, CA May 21-25, 2017, pp. 485-496. DOI: 10.1061/9780784480632.040

43. Tamaddun, K.A., Kalra, A., Ahmed, W., Dars, G.H., Burian, S., Ahmad, S. (2017), Precipitation and Indian Ocean Climate Variability-A Case Study on Pakistan, World Environmental and Water Resources Congress, Sacramento, CA May 21-25, 2017, pp. 526-535. DOI: 10.1061/9780784480618.052

42. Bukhary, S., Weidhaas, J., Ansari, K., Mahar, R.B., Pomeroy, C., Vanderslice, J.A., Burian, S.,
Ahmad, S. (2017), Using Distributed Solar for Treatment of Drinking Water in Developing Countries, World Environmental and Water Resources Congress, Sacramento, CA May 21-25, 2017, pp. 264-276. DOI: 10.1061/9780784480618.026.

41. Wu, R., Chen, C., Ahmad, S., Volk, J.M., Luca, C., Harris, F.C., Jr., Dascalu, S.M. (2016). A Real-time Web-based Wildfire Simulation System. IECON 2016-42nd Annual Conference of the IEEE. Florence, Italy. Oct 23-26, 2016. pp. 4964-4969. DOI: 10.1109/IECON.2016.7793478

4.0 Peterein, M., Kandissounon, G.-A.A.-D., Kalra, A., Ahmad, S.(2016) Improvements to SIU’s Engineering Campus Parking and Walkways along Campus Lake. World Environmental and Water Resources Congress, West Palm Beach, FL. May 22-26, 2016. pp. 262-271. DOI: 10.1061/9780784479858.028

39. Bukhary, S., Chen, C., Ahmad, S. (2016). Analysis of Water Availability and Use for Solar Power Production in Nevada. World Environmental and Water Resources Congress, West Palm Beach, FL. May 22-26, 2016. DOI: 10.1061/9780784479865.017

38. Pathak, P., Kalra, A., Ahmad, S. (2016) Analyzing Long-Term Changes in Precipitation and Temperature in the Midwest United States. World Environmental and Water Resources Congress, West Palm Beach, FL. May 22-26, 2016. DOI: 10.1061/9780784479872.050

37. Ghimire, G.R., Thakali, R., Kalra, A., Ahmad, S. (2016). Role of Low Impact Development in the Attenuation of Flood Flows in Urban Areas. World Environmental and Water Resources Congress, West Palm Beach, FL. May 22-26, 2016. DOI: 10.1061/9780784479858.035

36. Tamaddun, K.A., Kalra, A., Ahmad, S. (2016). Patterns and Periodicities of the Continental U.S. Streamflow Change. World Environmental and Water Resources Congress, West Palm Beach, FL. May 22-26, 2016. DOI: 10.1061/9780784479872.068

35. Chen, C., Ahmad, S., Mejia, J., Kalra, A. (2016). Study of Lehman Creek Watershed’s Hydrologic Response to Climate Change Using Downscaled CMIP5 Projections. World Environmental and Water Resources Congress, West Palm Beach, FL. May 22-26, 2016. DOI: 10.1061/9780784479872.052

34. Kalra, A., Sagarika, S., Ahmad, S. (2016). Long-Term Changes in the Continental United States Streamflow and Teleconnections with Oceanic-Atmospheric Indices. World Environmental and Water Resources Congress, West Palm Beach, FL. May 22-26, 2016. DOI: 10.1061/9780784479872.051

33. Pathak, P., Bhandari, M., Kalra, A., Ahmad, S. (2016). Modeling Floodplain Inundation for Monument Creek, Colorado. World Environmental and Water Resources Congress, West Palm Beach, FL. May 22-26, 2016. DOI: 10.1061/9780784479858.015

32. Kazi Tamaddun, Ajay Kalra, Sajjad Ahmad (2015) Spectral Analysis of Streamflow for Continental USA, ASCE World Environmental & Water Resources Congress, Austin, TX, May 17-21.
31. Chao Chen, Lynn Fenstermaker, Haroon Stephen, Sajjad Ahmad (2015) Distributed hydrological modeling for snow dominant watershed using Precipitation and Runoff Modeling System, ASCE World Environmental & Water Resources Congress, Austin, TX, May 17-21.

30. Soumya Sagarika, Ajay Kalra, Sajjad Ahmad (2015) Evaluating the relationship between Western U.S. streamflow and Pacific Ocean climate variability, ASCE World Environmental & Water Resources Congress, Austin, TX, May 17-21.

29. Saria Bukhary, Ajay Kalra, Sajjad Ahmad (2015) Insights into Reconstructing Sacramento River Flow using Tree Rings and Pacific Ocean Climate Variability, ASCE World Environmental & Water Resources Congress, Austin, TX, May 17-21.

28. Ajay Kalra, Soumya Sagarika, Sajjad Ahmad (2015) Spatial and temporal evaluation of hydroclimatic variables in the Colorado River Basin, ASCE World Environmental & Water Resources Congress, Austin, TX, May 17-21.

27. LingPeng Guo, LanHai Li, Haroon Stephen, Sajjad Ahmad (2015) Simulation of snow accumulation and ablation processes in the upstream of Kunes River, Yili valley, Xinjiang, ASCE World Environmental & Water Resources Congress, Austin, TX, May 17-21.

26. Chao Chen, Ajay Karlra, Sajjad Ahmad (2015) Exploring Water Management Strategies in Inland Arid Area Using Dynamic Simulation Model, ASCE World Environmental & Water Resources Congress, Austin, TX, May 17-21.

25. Ajay Kalra and Sajjad Ahmad (2014). Incorporating climate variability in a nonparametric modeling framework for improving hydrologic predictions, ASCE World Water and Environmental Resources Congress, Portland, OR. June 1-5, 2014.

24. Ajay Kalra, Soumya Sagarika, and Sajjad Ahmad (2014). Investigation of the linkages between oceanic atmospheric variability and continental U.S. streamflow. ASCE World Water and Environmental Resources Congress, Portland, OR. June 1-5, 2014.

23. Saria Bukhary, Chao Chen, Ajay Kalra, Sajjad Ahmad (2014). Improving Streamflow Reconstructions using Oceanic-Atmospheric Climate Variability. ASCE World Water and Environmental Resources Congress, Portland, OR. June 1-5, 2014.

22. Haroon Stephen, Adam Black, and Sajjad Ahmad (2014). Relating Temperature Trends to Urban Change and NDVI in Las Vegas. ASCE World Water and Environmental Resources Congress, Portland, OR. June 1-5, 2014.

21. ZHANG Fei-Yun, LI Lan-Hai, AHMAD Sajjad, and Han Jiangang (2014), Modeling Streamflow Dominated by Snowmelt in an Ungauged Basins of Northwestern China, ASCE World Water and Environmental Resources Congress, Portland, OR. June 1-5, 2014.

20. Joseph M. Vesco, Katie Gilgen, Anne Paine, Marissa Owens, E. Michael Nussbaum, Gale M. Sinatra, Sajjad Ahmad, Kent J. Crippen, Sergiu M. Dascalu, Frederick C Harris, Jr. (2012), Losing the Lake: Development and Deployment of an Educational Game, Proceedings of the 2012 Conference on Computers and Their Applications March 12-14, 2012, Las Vegas, NV.

19. Carrier, C., Kalra, A. and S. Ahmad, 2011. Extending streamflow forecast lead-time using proxy reconstructions of oceanic-atmospheric oscillations, ASCE Environmental and Water Resources Congress, Palm Springs, California.

18. Forsee, W.J., and Ahmad, S., 2011. Using HEC-HMS for Stormwater Infrastructure Assessment in Response to Changes in Design Storm Depths Calculated from Climate Projections, ASCE Environmental and Water Resources Congress, Palm Springs, California.

17. William J. Meyer, Sajjad Ahmad, Michael H. Young, David S. Shafer, Julianne J. Miller, and Karletta Chief (2011). Effect of Spatial and Temporal Variability of Antecedent Moisture Content on Model-Generated Runoff from an Arid Watershed, ASCE Environmental and Water Resources Congress, Palm Springs, California.

16. Dinesh Prashar and Sajjad Ahmad (2010), Evaluating Conservation Potential in Agricultural and Municipal Water Use in South Florida. ASCE World Environmental & Water Resources Congress, Providence, Rhode Island.

15. Sumit Puri, Sajjad Ahmad, Haroon Stephen (2010) Estimation of Water Stage over wetlands of South Florida using TRMM Precipitation Radar observations, ASCE World Environmental & Water Resources Congress, Providence, Rhode Island.

14. Venkatesan, S. Ahmad, J. R. Batista, and W. S. Johnson (2010) Total dissolved solids contribution to the Colorado River associated with the growth of Las Vegas Valley, ASCE World Environmental & Water Resources Congress, Providence, Rhode Island.

13. Ahmad, S. (2008). Grey Water Use as a Water Management Option in Las Vegas, Nevada, ASCE Environmental and Water Resources Congress, Honolulu, Hawaii, May 2008. 10 pp.

12. Ahmad, S. 2008. Evaluating Policies to Reduce Water Demand: A Simulation Modeling Approach”, Water Resource Systems Management under Extreme Conditions, Moscow, Russia, June 2008. pp 8.

11. Walter S. Johnson, Jacimaria R. Batista, and Sajjad Ahmad (2007), Indirect Potable Water Reuse: An Alternative for Water Quality Management in The Las Vegas Valley. WEFTEC, 2708-2718 pp.

10. Turbow, D., Norwick, S. and Ahmad, S. (2002). A dynamic simulation model of beach sand replenishment: a case study of Santa Barbara, California, Proc. of 20th Inter. Conf. of the System Dynamics Society, edt. Pål Davidsen, Edoardo Mollona, Vedat Diker, Robin Langer, Jennifer Rowe, Palermo, Italy, 24 pp.

9. Ahmad S. and Simonovic S. P. (2001). Modeling human behavior for evacuation planning: a system dynamics approach in “Bridging the Gap”, Proc. of the ASCE world water and environmental resources congress, edt. Don Phelps and Gerald Shelke, Orlando, FL., 10 pp

8. Ahmad S. and Simonovic S. P. (2001), Topography and overland flow algorithms: performance comparison of 1D and 2D hydrodynamic modeling approaches. Proc. of the 15th Canadian Hydro-technical Conference, edt. Don Noakes, Brenda McCabe, Maria Elektorowicz, Ram Balachandar, Victoria, BC. 8 pp.

7. Ahmad S. and Simonovic S. P. (2001). Predicting runoff hydrograph using artificial neural networks, in “Bridging the Gap”, Proc. of ASCE world water and environmental resources congress, edt. Don Phelps and Gerald Shelke, Orlando, FL., 17 pp.

6. Ahmad S. and Simonovic S. P. (2001), Modeling dynamic processes in space and time: a spatial system dynamics approach, in “Bridging the Gap”, Proceedings of the ASCE world water and environmental resources congress, edt. Don Phelps and Gerald Shelke, Orlando, FL., 20 pp.

5. Ahmad, S., and Simonovic S. P. (2000). Dynamic modeling of flood management policies, in “sustainability in third millennium”, Proc. of the 18th Int. Conf. of the System Dynamics Society, edt. Pål Davidsen, David Ford, and Ali Mashayekh , Bergen, Norway, 18 pp.

4. Ahmad S. and Simonovic S. P. (2000). Analysis of economic and social impacts of flood management policies using system dynamics, in “Atmospheric, Surface and Subsurface Hydrology and Interactions”, Proc. of the Int. Conf. of the American Institute of Hydrology, research triangle park, NC, 13 pp.

3. Ahmad S. and Simonovic S. P. (1999). Role of a coupled GIS-2-D hydrodynamic model in a decision support system for flood control, in “Red River Flooding-Decreasing Our Risks”, Proc. of Canadian Water Resources Association’s Conference, Winnipeg, Canada, 14 pp.

2. Ahmad, S., and Simonovic S. P. (1999). Comparison of one-dimensional and two-dimensional hydrodynamic modeling approaches for Red River Basin, Report to the International Joint Commission-Red River Basin Task Force, Ottawa, Washington, 51 pp.

1. Piracha, A. L., Ginn-Yein, C., and Ahmad, S. (1998). Integrated Use of GIS & Remote Sensing in Hydrological Modeling, in Proc. of GIS Applications to Resource Management and Environmental Planning, Islamabad, Pakistan, 6 pp.

 Presentations/Abstracts (Total 68) updated Dec 2015

68. Chao Chen, Sajjad Ahmad, Haroon Stephen, Lynn Fenstermaker, Ajay Kalra (2015). Study of Climate Change Impact on Snow-dominant Hydrologic Processes, American Geophysical Union (AGU), Fall meeting. San Francisco, California.

67. Kazi Ali Tamaddun, Ajay Kalra, Sajjad Ahmad (2015) Evaluating long-term trend patterns in the Continental U.S. using Statistics and Wavelet Transformation, American Geophysical Union (AGU), Fall meeting. San Francisco, California.

66. Saria Bukhary, Ajay Kalra, Sajjad Ahmad (2015) Using SST, PDO and SOI for streamflow reconstruction, American Geophysical Union (AGU), Fall meeting. San Francisco, California.

65. Sajjad Ahmad (2015) Water Requirements for Solar Power Production: Challenges and  Opportunities for the Southwest, Nevada Water Resources Association (NWRA) Annual Conference, Reno, NV

64. Saria Bukhary, Miguel Bernardez, Ajay Kalra, Sajjad Ahmad  (2015) Using Pacific Ocean Climate Information to Improve the Tree Ring Based Reconstruction of Sacramento River, Nevada Water Resources Association (NWRA) Annual Conference, Reno, NV January 27-29.

63. Chao Chen, Sajjad Ahmad (2015) Evaluating Hydrological Processes in a Snow Dominated Watershed Using Precipitation – Runoff Modeling System, Nevada Water Resources Association (NWRA) Annual Conference, Reno, NV January 27-29.

62. Kazi Tamaddun, Ajay Kalra, Sajjad Ahmad (2015) Detection of trends in streamflow with Discrete Wavelet Transforms (DWT), Nevada Water Resources Association (NWRA) Annual Conference, Reno, NV January 27-29.

61. Sumit Puri, Ajay Kalra and Sajjad Ahmad (2014), Evaluation of streamflow trends in the Pacific Northwest using Wavelet Analysis. American Geophysical Union (AGU), Fall meeting, San Francisco, CA.

60. Saria Bukhary, Miguel Bernardez, Ajay Kalra, Sajjad Ahmad (2014), Tree Ring and Climate Information based Reconstruction of Streamflow for Sacramento River, California. American Geophysical Union (AGU), Fall meeting. San Francisco, California.

59. Soumya Sagarika, Miguel Bernardez, Ajay Kalra, and Sajjad Ahmad (2014), Interactions of the Pacific ocean variability with western U.S. streamflow. American Geophysical Union (AGU), Fall meeting. San Francisco, California.

58. Chao Chen, Ajay Kalra and Sajjad Ahmad (2014), Planning for Regional Water Resources in Northwest China using Dynamic Simulation Model. American Geophysical Union (AGU), Fall meeting. San Francisco, California.

57. Saria Bukhary, Parker Hill, Ajay Kalra, Sajjad Ahmad (2014), Improvement of Hydrologic Reconstructions using Oceanic-Atmospheric Climate Variables, Nevada Water Resources Association Annual Conference, Las Vegas, NV, February 4-6, 2014.

56. Soumya Sagarika, Ajay Kalra, Sajjad Ahmad (2014), Role of large-scale climate patterns and sea surface temperature in influencing the continental U.S. streamflow, Nevada Water Resources Association Annual Conference, Las Vegas, NV, February 4-6, 2014.

55. Soumya Sagarika, Ajay Kalra, Sajjad Ahmad (2014), A dynamics simulation model to evaluate water diversion scenarios in the Colorado River Basin, Nevada Water Resources Association Annual Conference, Las Vegas, NV, February 4-6, 2014.

54. Chao Chen, Zhixia Xu, Ajay Kalra, Sajjad Ahmad (2014), Planning and Managing Water Resources Allocations in Shanshan County, China: a Dynamic Modeling Approach, Nevada Water Resources Association Annual Conference, Las Vegas, NV, February 4-6, 2014.

53. Jiangang HAN, Lanhai Li, Sajjad AHMAD (2014), Removal efficiency of nitrogen by Chlamydomonas reinhardtii under three kinds of inorganic nitrogen treatments in a water-sediment system, Nevada Water Resources Association Annual Conference, Las Vegas, NV, February 4-6, 2014.

52. Ajay Kalra and Sajjad Ahmad (2013), Using Pacific and Atlantic Ocean climate variability for Improving Streamflow Estimates in the Rio Grande River Basin. American Geophysical Union (AGU), San Francisco, California.

51. Soumya Sagarika, Ajay Kalra and Sajjad Ahmad (2013). Evaluating the relationship between oceanic-atmospheric indices and variability in the streamflow: A continental U.S. study, American Geophysical Union (AGU), San Francisco, California.

50. Ajay Kalra, Sajjad Ahmad and Navin K Twarakavi (2013), Using Pacific Ocean Sea Surface Temperature for Improving Streamflow Estimates in the Colorado River Basin, 94th annual meeting of American Academy of Sciences (AAAS) Pacific Division, Las Vegas, NV, June 16-19.

49. Soumya Sagarika, Ajay Kalra, and Sajjad Ahmad (2013), A Simultaneous Analysis of trend and Step Changes in the Streamflow of the Continental United States, 94th annual meeting of American Academy of Sciences (AAAS) Pacific Division, Las Vegas, NV, June 16-19. (2nd Place, Best Student Oral Presentation Competition)

48. Sajjad Ahmad (2013), Water-Energy Nexus in the Arid Southwest: Implications for Sustainable Water Management, 94th annual meeting of American Academy of Sciences (AAAS) Pacific Division, Las Vegas, NV, June 16-19.

47. Kalra, A., and S. Ahmad, (2013). Using sea surface temperatures for improving streamflow estimates, ASCE World Water and Environmental Resources Congress, Cincinnati, Ohio, May 19-23.
46. Sagarika, S., A. Kalra, and S. Ahmad, (2013). Analyzing the long term trends and change point in the continental Unites States streamflow, ASCE World Water and Environmental Resources Congress, Cincinnati, Ohio, May 19-23.

45. Kalra, A., P. Shrestha, and S. Ahmad, (2013), Using Pacific and Atlantic Ocean sea surface temperature for improving streamflow estimates in the Upper Truckee River basin, Nevada Water Resources Association Annual Conference, Reno, NV, January 29-31, 2013.

44. Sagarika, S., A. Kalra, S. Kumar, and S. Ahmad, (2013), Analyzing long-term trends in hydrologic variables over the Colorado River basin, Nevada Water Resources Association Annual Conference, Reno, NV, January 29-31, 2013 (2nd Place, Best Student Poster Competition).

43. Kandel, D.R., Batista, J.R., and Ahmad, S., (2013), Energy Audits in Wastewater Treatment System, Nevada Water Resources Association Annual Conference, Reno, NV, January 29-31, 2013

42. Kalra, A., S. Ahmad, and N.K. Twarakavi (2012), Using Pacific Ocean sea surface temperatures to improve lead time for streamflow estimates, American Geophysical Union (AGU), San Francisco, California, December 3-7.

41. Dawadi S., and Ahmad, S., (2012). Risk to water supply system due to climate change and population growth: A study of Las Vegas Valley, World Congress on Risk “Risk and Development in a Changing World”, Sydney, Australia.

40. Ahmad, S., (2012) Vulnerability of Water Infrastructure to Climate Variability and Change: Implications for Sustainable Water Management, NSF CMMI Engineering Research and Innovation Conference, Boston, MA.

39. Carrier, C., Kalra, A. and S. Ahmad, 2012. Long-Range Streamflow Forecasts using Support Vector Machines in the Western United States, ASCE Environmental and Water Resources Congress, Albuquerque, NM.

38. Li, L; Li, X; Kalra, A., S. Ahmad, 2012. Relationship between oceanic-atmospheric oscillations and streamflow of Kaidu River, Xinjiang, China, ASCE Environmental and Water Resources Congress, Albuquerque, NM.

37. Kalra, A., and S. Ahmad, (2011). Improving Streamflow Forecasts Using Predefined Sea Surface Temperature,American Geophysical Union (AGU), San Francisco, CA.36. Eleeja Shrestha, Sajjad Ahmad, Walter Johnson, and Jacimaria. R. Batista, (2011). The Carbon Footprint of Water Management Policy Options, Nevada Water Environment Association (NEWA) Annual conference, Las Vegas, NV.

35. Kamal Qaiser, Sajjad Ahmad, Walter Johnson and Jacimaria Batista (2011). Evaluating the Impact of Water Conservation on Components of the Hydrologic Cycle in an Arid Region, Nevada Water Environment Association (NEWA) Annual conference, Las Vegas, NV.

34. Arjun K. Venkatesan, Sajjad Ahmad, Walter Johnson and Jacimaria. R. Batista (2011). System Dynamics Model to Forecast Salinity Load to the Colorado River Due to Urbanization Within The Las Vegas Valley, Nevada Water Environment Association (NEWA) Annual conference, Las Vegas, NV.

33. Kalra, A., and S. Ahmad, (2010). Quantification of linkages between large-scale climate patterns and annual precipitation for the Colorado River Basin, American Geophysical Union (AGU), San Francisco, CA.

32. Kalra, A., W.P. Miller, S. Ahmad, and K.W. Lamb, (2010). Forecasting of annual streamflow using data driven modeling approach, American Geophysical Union (AGU), San Francisco, California, CA.

31. Michael Nussbaum, Gale Sinatra, Fred Harris, Sergiu Dascalu, Sajjad Ahmad, Kent Crippen, Marissa Owens (2010), Losing the Lake: Designing an Educational Computer Game on Water Resources in Southern Nevada, 2010 Annual Nevada NSF EPSCoR Climate Change Conference, Las Vegas, NV.

30. Kalra A; S. Ahmad; H. Stephen, (2009), Evaluating Changes And Estimating Seasonal Precipitation For Colorado River Basins Using Nonparametric Density Estimation. Fall AGU meeting, San Francisco, CA.

29. Sumit Puri, Haroon Stephen, Sajjad Ahmad (2009), Relating Surface Backscatter Response from TRMMPR to SCAN Soil Moisture in Southern United States, Fall AGU meeting, San Francisco, CA.

28. Haroon Stephen, Sajjad Ahmad, and Thomas C. Piechota (2009), Relating Surface Backscatter Response from TRMM Precipitation Radar to Simulated Soil Moisture: Preliminary Results over a Semi-Arid Region, Fall AGU meeting, San Francisco, CA.

27. Haroon Stephen, Sajjad Ahmad, and Thomas C. Piechota (2009), Improved Soil Moisture Estimation from TRMM Precipitation Radar Backscatter Corrected for Azimuth Modulation, Fall AGU meeting, San Francisco, CA.

26. WJ Meyer, S Ahmad, M Young, DS Shafer, JJ Miller, K Chief (2009), A Multi-Platform Approach to Examine Spatial and Temporal Variability of Antecedent Moisture Content on Model-Generated Runoff from a Watershed, AGU fall meeting, San Francisco, CA.

25. Kalra, A., Ahmad, S (2008). Bringing Statistical Learning Machines and Disaggregation Approach Together for Hydrological Predictions, ASCE Environmental and Water Resources Congress, Kansas

24. Kalra, A., Ahmad, S (2008) Estimating Inflows to Lake Okeechobee Using Climate Indices: A Machine Learning Approach, AGU San Francisco.

23. Ahmad S. (2007), Evaluating Water Supply and Water Quality Management Options for Las Vegas Valley, Joint AGU Assembly, May 21-25, Acapulco, Mexico. H33C-03

22. Kalra, A, Ahmad S (2007), Using oceanic-atmospheric oscillations for long lead-time streamflow forecasting in the Upper Colorado River Basin. AGU, San Francisco, CA H11C-0646

21. Melesse, Mcclain, Ahmad, Wang, Nangia and Lim. (2007). Suspended Sediment Load Prediction Using Artificial Neural Networks Approach Joint AGU Assembly, May 21-25, 2007, Acapulco, Mexico.

20. Sajjad Ahmad (2006), Planning for Water Resources of South Florida: A system dynamics modeling approach, AGU, San Francisco, CA

19. Sajjad Ahmad, Guillermo Podesta, Fernando Miralles-Wilhelm, Reinaldo Garcia (2006), An integrated model for sustainable management of water resources in south Florida. Annual Conference of American Meteorological Society, Atlanta.

18. Reinaldo Garcia-Martinez, Sajjad Ahmad, Fernando Miralles-Wilhem, (2006), Predicting rainfall in the Lake Okeechobee watershed based on historic rainfall records and climate indicators: an Artificial Neural Network modeling approach, Annual Conference of American Meteorological Society, Atlanta.

17. Ahmad, Sajjad, Fernando R Miralles-Wilhelm, Guillermo P Podestá Kenny Broad David Letson, (2005). Evaluating the Impacts of Climate Variability on Agriculture: an integrated modeling approach, AGU Joint Assembly, New Orleans.

16. Haroon, Stephen, David G. Long and Sajjad Ahmad (2005). Moisture mapping in the Amazon basin using Near-Nadir and Far-Range backscatter slopes, AGU Joint Assembly, New Orleans.

15. Tengs T O, and Ahmad S (2004). Simulating the population health impacts of mandating nicotine reductions in cigarettes: results from the tobacco policy model. International society for pharmacoeconomics and outcomes research. ISPOR 9th Annual int. meeting, Arlington, VA

14. Ahmad, S., (2004). Public Health and Economic Impacts of Raising the Legal Smoking Age in California, ISPOR 7th Annual European Congress, Hamburg, Germany.

13. Ahmad S and Tengs T., (2004). Clearing the smoke: a computer simulation of the population health impacts of reducing nicotine in cigarettes, 10th annual meeting of the Society for Research on Nicotine and Tobacco, Scottsdale, AZ

12. Ahmad, S., (2003). Real time flood forecasting: a case study of the Jhelum River, Pakistan. IUGG the XXIII General Assembly of the Inter. Union of Geodesy & Geophysics Sapporo, Japan.

11. Ahmad, S., (2003). Revisiting 1992 Floods in Pakistan: operation of Mangla Reservoir, IUGG, the XXIII General Assembly of the Inter. Union of Geodesy and Geophysics, Sapporo, Japan.

10. Turbow, D., Dwight, R, Ahmad, S, Norwick, S. (2003). A dynamic simulation model of the public health and economic aspects of coastal water quality in Huntington Beach, California. Greening XII Conference. Santa Barbara, CA.

9. Ahmad S and Tengs T., (2003) Federal Policy Mandating Safer Cigarettes: A Simulation of the Anticipated Population Health Gains or Losses, 25th Annual Meeting of the Society for Medical Decision Making October 18-22, Chicago.

8. Ahmad S and Tengs T., (2003), Validating Computer Simulation Models: Case of the Tobacco Policy Model, 25th Meeting of the Society for Medical Decision Making Oct 18-22, Chicago.

7. Ahmad S and Tengs T., (2003), Reducing Nicotine in Cigarettes: A dynamic simulation of the population health impacts. Chao Family Cancer Center Conf., Oct. 24-26, Palm Springs.

6. Ahmad, S. (2002). Operating water resources systems under climate change scenarios, American Geophysical Union (AGU) Fall Meeting, San Francisco, CA

5. Ahmad S. and Simonovic S. P. (2000). Modeling flood emergency management policies: a system dynamics approach. Proc. of Manitoba Emergency Management Conf., Winnipeg, MB

4. Ahmad S. and Simonovic S. P. (2000). Behavioral model for evacuation planning during flood emergencies, Workshop on Extreme Events and the Assessment of Risk, London, ON.

3. Ahmad, S. (2000). Expert system for selection of flood control measures, 17th Red River Basin Land and Water Int. Conf. Our Basin Home: Managing our Society within Nature, Winnipeg, MB

2. Ahmad, S. (2000). Modeling reservoir operations for flood management using system dynamics, 17th Annual Red River Basin Land and Water International Conference. Winnipeg, MB.

1. Ahmad S. (1999). Decision support system structure and applications, Workshop on GIS Modeling from Theory to Applications, Manitoba, Canada.


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