CE 602 Optimization Methods

• Received Fellowship under Shastri Indo-Canadian Institute for academic visit to  Department of Civil and Resources Engineering, Dalhousie University, Halifax, Nova Scotia, Canada (Aug 2017)
• Received Erasmus Mundus fellowship for research visit to Ecole Central de Nantes, France (May-June 2014, May-June 2015, May-June 2016)
• NFP fellowship for attending short programme at UNSCO IHE: Institute for water education, Delft, The Netherlands (July 2013)
• Visiting Faculty, Department of Civil and Resources Engineering, Dalhousie University, Halifax, Nova Scotia, Canada (September 2010).
• Visiting Scholar, Department of Civil and Resources Engineering, Dalhousie University, Halifax, Nova Scotia, Canada (May 2007 to July 2007).
• Visiting Research Scholar Department of Civil and Resources Engineering, Dalhousie University, Halifax, Nova Scotia, Canada (May 2006 to June 2006).
• Visiting Research Scholar Department of Civil Engineering, Dalhousie University, Halifax, Nova Scotia, Canada (May 2002 to September 2002).

1. Handique, A., Sarma, A.K., Ahmed, J.A., Medhi, S., Konwar, D., & Bhattacharjya, R.K. (2024). Evaluating the impact of porcupine systems in the flow field of the river: a hydrodynamic model study. ISH Journal of Hydraulic Engineering, 30(4), 454-463. https://doi.org/10.1080/09715010.2024.2364827
2. Parmita, P., & Bhattacharjya, R.K. (2024). Estimation of Total Drainable Water Storage Using GRACE in the Brahmaputra River Basin, India. Journal of Hydrologic Engineering, 29(5), 4024024. https://doi.org/10.1061/JHYEFF.HEENG-6136
3. Das, M., Bhattacharjya, R.K., & Kartha, S.A. (2024). ANN-SFLA based parameter estimation method for an unsaturated–saturated simulation model. Modeling Earth Systems and Environment, 10(1), 751-765. https://doi.org/10.1007/s40808-023-01797-0
4. Handique, A., Sarma, A.K., & Bhattacharjya, R.K. (2024). An iterative method for estimating the velocity dip positions across a river. In River Flow - Proceedings of the 11th Conference on Fluvial Hydraulics, 2022 (pp. 27-34). https://doi.org/10.1201/9781003323037-4
5. Das, M., Bhattacharjya, R.K., & Kartha, S.A. (2024). Estimation of virus transport parameters in both unsaturated-saturated zone using numerical simulation and flower pollination algorithm. Groundwater for Sustainable Development, 26, 101183. https://doi.org/10.1016/j.gsd.2024.101183
6. Isia, I., Hadibarata, T., Hapsari, R.I., Jusoh, M.N.H., Bhattacharjya, R.K., & Shahedan, N.F. (2023). Assessing social vulnerability to flood hazards: A case study of Sarawak's divisions. International Journal of Disaster Risk Reduction, 97, 104052. https://doi.org/10.1016/j.ijdrr.2023.104052
7. Talukdar, G., Bhattacharjya, R.K., & Sarma, A.K. (2023). Understanding the effect of long term and short term hydrological components on landscape ecosystem. Ecological Informatics, 77, 102267. https://doi.org/10.1016/j.ecoinf.2023.102267
8. Goswami, J., & Bhattacharjya, R.K. (2023). Vulnerability Assessment of Groundwater-Based Public Drinking Water Supply System of Kamrup District, Assam, India Considering Social Parameters. Journal of The Institution of Engineers (India): Series A, 104(2), 483-499. https://doi.org/10.1007/s40030-023-00724-x
9. Isia, I., Hadibarata, T., Jusoh, M.N.H., Bhattacharjya, R.K., Shahedan, N.F., Fitriyani, N.L., & Syafrudin, M. (2023). Identifying Factors to Develop and Validate Social Vulnerability to Floods in Malaysia: A Systematic Review Study. Sustainability (Switzerland), 15(17), 12729. https://doi.org/10.3390/su151712729
10. Isia, I., Hadibarata, T., Jusoh, M.N.H., Bhattacharjya, R.K., Shahedan, N.F., Bouaissi, A., Fitriyani, N.L., & Syafrudin, M. (2023). Drought Analysis Based on Standardized Precipitation Evapotranspiration Index and Standardized Precipitation Index in Sarawak, Malaysia. Sustainability (Switzerland), 15(1), 734. https://doi.org/10.3390/su15010734
11. Talukdar, G., Bhattacharjya, R.K., & Sarma, A.K. (2023). Optimal cropping pattern based on short-term streamflow forecasts to improve agricultural economic benefits and crop productivity under uncertainty conditions. Hydrological Sciences Journal, 68(2), 246-260. https://doi.org/10.1080/02626667.2022.2151914
12. Talukdar, G., Sarma, A.K., & Bhattacharjya, R.K. (2022). Integrating optimization and damage estimation to increase economic benefit and ensure food security under seasonal land variability. Journal of Environmental Management, 320, 115872. https://doi.org/10.1016/j.jenvman.2022.115872
13. Shakya, C.M., Bhattacharjya, R.K., & Dadhich, S. (2022). Groundwater level prediction with machine learning for the Vidisha district, a semi-arid region of Central India. Groundwater for Sustainable Development, 19, 100825. https://doi.org/10.1016/j.gsd.2022.100825
14. Dutta, D., & Bhattacharjya, R.K. (2022). A statistical bias correction technique for global climate model predicted near-surface temperature in India using the generalized regression neural network. Journal of Water and Climate Change, 13(2), 854-871. https://doi.org/10.2166/wcc.2022.214
15. Talukdar, G., Sarma, A.K., & Bhattacharjya, R.K. (2022). Assessment of land use change in riverine ecosystem and utilizing it for socioeconomic benefit. Environmental Monitoring and Assessment, 194(11), 841. https://doi.org/10.1007/s10661-022-10495-w
16. Handique, A., Baruah, A., Sarma, A.K., & Bhattacharjya, R.K. (2022). A dip-corrected discharge estimation method for a river system. Flow Measurement and Instrumentation, 87, 102222. https://doi.org/10.1016/j.flowmeasinst.2022.102222
17. Sarmah, D.J., & Bhattacharjya, R.K. (2022). Geospatial assessment on the changing pattern of geomorphology: A case study on the world's largest river island Majuli. E3S Web of Conferences, 347, 4002. https://doi.org/10.1051/e3sconf/202234704002
18. Kumar, D., & Bhattacharjya, R.K. (2021). GRNN Model for prediction of groundwater fluctuation in the state of Uttarakhand of India using GRACE data under limited bore well data. Journal of Hydroinformatics, 23(3), 567-588. https://doi.org/10.2166/HYDRO.2021.108
19. Kumar, D., & Bhattacharjya, R.K. (2021). Change in rainfall patterns in the hilly region of Uttarakhand due to the impact of climate change. Applied Environmental Research, 43(1), 1-13. https://doi.org/10.35762/AER.2021.43.1.1
20. Talukdar, G., Sarma, A.K., & Bhattacharjya, R.K. (2021). Sediment analysis and modelling based approach for optimal allocation of riverine sandbar for socio-economic benefits. Ecological Engineering, 173, 106415. https://doi.org/10.1016/j.ecoleng.2021.106415
21. Goswami, J., & Bhattacharjya, R.K. (2021). Assessment of groundwater based public drinking water supply system of Kamrup District, Assam, India using a modified water quality index. Pollution, 7(3), 495-509. https://doi.org/10.22059/POLL.2021.309035.883
22. Kumar, D., & Bhattacharjya, R.K. (2020). Estimation of Integrated Flood Vulnerability Index for the Hilly Region of Uttarakhand, India. Journal of Hazardous, Toxic, and Radioactive Waste, 24(4), 4020051. https://doi.org/10.1061/(ASCE)HZ.2153-5515.0000540
23. Barman, S., & Bhattacharjya, R.K. (2020). ANN-SCS-based hybrid model in conjunction with GCM to evaluate the impact of climate change on the flow scenario of the river Subansiri. Journal of Water and Climate Change, 11(4), 1150-1164. https://doi.org/10.2166/wcc.2019.221
24. Sophia, L., & Bhattacharjya, R.K. (2020). A GA Based Iterative Model for Identification of Unknown Groundwater Pollution Sources Considering Noisy Data. Modeling and Optimization in Science and Technologies, 16, 303-321. https://doi.org/10.1007/978-3-030-26458-1_17
25. Kumar, D., Gandhi, B.G.R., & Bhattacharjya, R.K. (2020). Firefly Algorithm and Its Applications in Engineering Optimization. Modeling and Optimization in Science and Technologies, 16, 93-103. https://doi.org/10.1007/978-3-030-26458-1_6
26. Vats, O.P., Sharma, B., Stamm, J., & Bhattacharjya, R.K. (2020). Groundwater Circulation Well for Controlling Saltwater Intrusion in Coastal aquifers: Numerical study with Experimental Validation. Water Resources Management, 34(11), 3551-3563. https://doi.org/10.1007/s11269-020-02635-z
27. Gandhi, B.G.R., & Bhattacharjya, R.K. (2020). Differential Evolution and Its Application in Identification of Virus Release Location in a Sewer Line. Modeling and Optimization in Science and Technologies, 16, 53-72. https://doi.org/10.1007/978-3-030-26458-1_4
28. Kumar, D., & Bhattacharjya, R.K. (2020). Evaluating two GIS-based semi-distributed hydrological models in the Bhagirathi-Alkhnanda River catchment in India. Water Policy, 22(6), 991-1014. https://doi.org/10.2166/wp.2020.159
29. Kumar, D., & Kumar Bhattacharjya, R. (2020). Study of Integrated Social Vulnerability Index SoVIint of Hilly Region of Uttarakhand, India. Environmental and Climate Technologies, 24(1), 105-122. https://doi.org/10.2478/rtuect-2020-0007
30. Kumar, D., & Bhattacharjya, R.K. (2020). Forecasting Groundwater Fluctuation from GRACE Data Using GRNN. Advances in Intelligent Systems and Computing, 1154, 295-307. https://doi.org/10.1007/978-981-15-4032-5_28
31. Bhattacharjya, R.K. (2020). Efficiency of Binary Coded Genetic Algorithm in Stability Analysis of an Earthen Slope. Modeling and Optimization in Science and Technologies, 16, 323-334. https://doi.org/10.1007/978-3-030-26458-1_18
32. Kumar, D., Gandhi, B.G.R., & Bhattacharjya, R.K. (2020). Introduction to Invasive Weed Optimization Method. Modeling and Optimization in Science and Technologies, 16, 203-214. https://doi.org/10.1007/978-3-030-26458-1_12
33. Talukdar, G., Sarma, A.K., & Bhattacharjya, R.K. (2020). Mapping agricultural activities and their temporal variations in the riverine ecosystem of the Brahmaputra River using geospatial techniques. Remote Sensing Applications: Society and Environment, 20, 100423. https://doi.org/10.1016/j.rsase.2020.100423
34. Marak, J.D.K., Sarma, A.K., & Bhattacharjya, R.K. (2020). Assessing the Impacts of Interbasin Water Transfer Reservoir on Streamflow. Journal of Hydrologic Engineering, 25(10), 5020034. https://doi.org/10.1061/(ASCE)HE.1943-5584.0001984
35. Bennis, F., & Bhattacharjya, R.K. (2020). Preface. Modeling and Optimization in Science and Technologies, 16, v-vi. https://doi.org/10.1515/9783110870060-001
36. Gandhi, B.G.R., & Bhattacharjya, R.K. (2020). Introduction to Shuffled Frog Leaping Algorithm and Its Sensitivity to the Parameters of the Algorithm. Modeling and Optimization in Science and Technologies, 16, 105-117. https://doi.org/10.1007/978-3-030-26458-1_7
37. Das, M., & Bhattacharjya, R.K. (2020). A regression-based analysis to assess the impact of Fluoride Reach River water on the groundwater aquifer adjacent to the river: A case study in Bharalu River Basin of Guwahati, India. Pollution, 6(3), 637-650. https://doi.org/10.22059/POLL.2020.299434.764
38. Sharma, B., & Bhattacharjya, R.K. (2020). Behaviour of contaminant transport in unconfined coastal aquifer: An experimental evaluation. Journal of Earth System Science, 129(1), 140. https://doi.org/10.1007/s12040-020-01405-0
39. Kalita, H.M., Bhattacharjya, R.K., & Sarma, A.K. (2020). Linked Simulation Optimization Model for Evaluation of Optimal Bank Protection Measures. Modeling and Optimization in Science and Technologies, 16, 283-302. https://doi.org/10.1007/978-3-030-26458-1_16
40. Marak, J.D.K., Sarma, A.K., & Bhattacharjya, R.K. (2020). Innovative trend analysis of spatial and temporal rainfall variations in Umiam and Umtru watersheds in Meghalaya, India. Theoretical and Applied Climatology, 142(4), 1397-1412. https://doi.org/10.1007/s00704-020-03383-1
41. Leichombam, S., & Bhattacharjya, R.K. (2019). New hybrid optimization methodology to identify pollution sources considering the source locations and source flux as unknown. Journal of Hazardous, Toxic, and Radioactive Waste, 23(1), 4018037. https://doi.org/10.1061/(ASCE)HZ.2153-5515.0000431
42. Bhattacharjya, R.K. (2018). A Modified Penalty Parameter Approach for Optimal Estimation of UH with Simultaneous Estimation of Infiltration Parameters. Journal of The Institution of Engineers (India): Series A, 99(3), 609-615. https://doi.org/10.1007/s40030-018-0311-x
43. Rajeev Gandhi, B.G., Bhattacharjya, R.K., & Satish, M.G. (2017). Simulation-optimization-based virus source identification model for 3D unconfined aquifer considering source locations and number as variable. Journal of Hazardous, Toxic, and Radioactive Waste, 21(2), 4016019. https://doi.org/10.1061/(ASCE)HZ.2153-5515.0000334
44. Hasda, R.K., Bhattacharjya, R.K., & Bennis, F. (2017). Modified genetic algorithms for solving facility layout problems. International Journal on Interactive Design and Manufacturing, 11(3), 713-725. https://doi.org/10.1007/s12008-016-0362-z
45. Borah, T., & Bhattacharjya, R.K. (2016). Development of an Improved Pollution Source Identification Model Using Numerical and ANN Based Simulation-Optimization Model. Water Resources Management, 30(14), 5163-5176. https://doi.org/10.1007/s11269-016-1476-6
46. Bhattacharjya, R.K., Srivastava, A., & Satish, M.G. (2015). Hybrid-optimization approach for estimating parameters of a virus transport process in aquifer. Journal of Hazardous, Toxic, and Radioactive Waste, 19(2), 4014025. https://doi.org/10.1061/(ASCE)HZ.2153-5515.0000195
47. Borah, T., & Bhattacharjya, R.K. (2015). Development of unknown pollution source identification models using GMS ANN-based simulation optimization methodology. Journal of Hazardous, Toxic, and Radioactive Waste, 19(3), 4014034. https://doi.org/10.1061/(ASCE)HZ.2153-5515.0000242
48. Dey, A., & Bhattacharya, R.K. (2014). Monitoring of River Center Line and Width-A Study on River Brahmaputra. Journal of the Indian Society of Remote Sensing, 42(2), 475-482. https://doi.org/10.1007/s12524-013-0277-0
49. Kalita, H.M., Sarma, A.K., & Bhattacharjya, R.K. (2014). Evaluation of Optimal River Training Work Using GA Based Linked Simulation-Optimization Approach. Water Resources Management, 28(8), 2077-2092. https://doi.org/10.1007/s11269-014-0593-3
50. Bhattacharjya, R.K., & Chaurasia, S. (2013). Geomorphology Based Semi-Distributed Approach for Modelling Rainfall-Runoff Process. Water Resources Management, 27(2), 567-579. https://doi.org/10.1007/s11269-012-0202-2
51. Borah, T., & Bhattacharjya, R.K. (2013). Solution of source identification problem by using GMS and MATLAB. ISH Journal of Hydraulic Engineering, 19(3), 297-304. https://doi.org/10.1080/09715010.2013.808515
52. Saharia, M., & Bhattacharjya, R.K. (2012). Geomorphology-based Time-Lagged Recurrent Neural Networks for runoff forecasting. KSCE Journal of Civil Engineering, 16(5), 862-869. https://doi.org/10.1007/s12205-012-1463-2
53. Bhattacharjya, R.K. (2011). Solving groundwater flow inverse problem using spreadsheet solver. Journal of Hydrologic Engineering, 16(5), 472-477. https://doi.org/10.1061/(ASCE)HE.1943-5584.0000329
54. Bhattacharjya, R.K. (2010). Discussion of "evolutionary algorithms for the determination of critical depths in conduits" by A. Kanani, M. Bakhtiari, S. M. Borghei, and D.-S. Jeng. Journal of Irrigation and Drainage Engineering, 136(3), 221-223. https://doi.org/10.1061/(ASCE)IR.1943-4774.0000201
55. Bhattacharjya, R.K., & Satish, M.G. (2010). Optimal design of water-conveying canal considering seismic stability of side slopes. Irrigation and Drainage, 59(3), 291-302. https://doi.org/10.1002/ird.473
56. Bhattacharjya, R.K., Datta, B., & Satish, M.G. (2009). Performance of an artificial neural network model for simulating saltwater intrusion process in coastal aquifers when training with noisy data. KSCE Journal of Civil Engineering, 13(3), 205-215. https://doi.org/10.1007/s12205-009-0205-6
57. Bhattacharjya, R.K., & Satish, M.G. (2009). Discussion of "Flooding probability constrained optimal design of trapezoidal channels" by Amlan Das. Journal of Irrigation and Drainage Engineering, 135(1), 129-131. https://doi.org/10.1061/(ASCE)0733-9437(2009)135:1(129)
58. Bhattacharjya, R.K., & Datta, B. (2009). ANN-GA-based model for multiple objective management of coastal aquifers. Journal of Water Resources Planning and Management, 135(5), 314-322. https://doi.org/10.1061/(ASCE)0733-9496(2009)135:5(314)
59. Bhattacharjya, R.K. (2008). Discussion of "Invertible alternatives to normal and lognormal distributions" by Prabhata K. Swamee and Pushpa N. Rathie. Journal of Hydrologic Engineering, 13(3), 197. https://doi.org/10.1061/(ASCE)1084-0699(2008)13:3(197)
60. Bhattacharjya, R.K., & Satish, M. (2008). Flooding probability-based optimal design of trapezoidal open channel using freeboard as a design variable. Journal of Irrigation and Drainage Engineering, 134(3), 405-408. https://doi.org/10.1061/(ASCE)0733-9437(2008)134:3(405)
61. Bhattacharjya, R.K., & Satish, M.G. (2007). Optimal design of a stable trapezoidal channel section using hybrid optimization technique. Journal of Irrigation and Drainage Engineering, 133(4), 323-329. https://doi.org/10.1061/(ASCE)0733-9437(2007)133:4(323)
62. Bhattacharjya, R.K., Datta, B., & Satish, M.G. (2007). Artificial neural networks approximation of density dependent saltwater intrusion process in coastal aquifers. Journal of Hydrologic Engineering, 12(3), 273-282. https://doi.org/10.1061/(ASCE)1084-0699(2007)12:3(273)
63. Bhattacharjya, R.K., & Satish, M.G. (2007). Discussion of "optimal pumping from skimming wells" by S. V. Rao, Sudhir Kumar, Shashank Shekhar, and D. Chakraborty. Journal of Hydrologic Engineering, 12(6), 706-707. https://doi.org/10.1061/(ASCE)1084-0699(2007)12:6(706)
64. Bhattacharjya, R.K. (2007). Discussion of "alternate decision making in water distribution network with NSGA-II" by Md. Atiquzzaman, Shie-Yui Liong, and Xinying Yu. Journal of Water Resources Planning and Management, 133(6), 565-566. https://doi.org/10.1061/(ASCE)0733-9496(2007)133:6(565)
65. Bhattacharjya, R.K. (2006). Optimal design of open channel section incorporating critical flow condition. Journal of Irrigation and Drainage Engineering, 132(5), 513-518. https://doi.org/10.1061/(ASCE)0733-9437(2006)132:5(513)
66. Bhattacharjya, R.K. (2005). Optimal design of open channel section considering freeboard. ISH Journal of Hydraulic Engineering, 11(3), 141-151. https://doi.org/10.1080/09715010.2005.10514808
67. Jain, A., Srinivasalu, S., & Bhattacharjya, R.K. (2005). Determination of an optimal unit pulse response function using real-coded genetic algorithm. Journal of Hydrology, 303(4), 199-214. https://doi.org/10.1016/j.jhydrol.2004.07.014
68. Bhattacharjya, R.K., & Datta, B. (2005). Optimal management of coastal aquifers using linked simulation optimization approach. Water Resources Management, 19(3), 295-320. https://doi.org/10.1007/s11269-005-3180-9
69. Bhattacharjya, R.K. (2004). Optimal design of unit hydrographs using probability distribution and genetic algorithms. Sadhana - Academy Proceedings in Engineering Sciences, 29(5), 499-508. https://doi.org/10.1007/BF02703257
70. Jain, A., Bhattacharjya, R.K., & Sanaga, S. (2004). Optimal design of composite channels using genetic algorithm. Journal of Irrigation and Drainage Engineering, 130(4), 286-295. https://doi.org/10.1061/(ASCE)0733-9437(2004)130:4(286)