Research output across water,
climate and computation.

A generalized three-dimensional manifold for the Budyko hypothesis: analytical derivation and structural stability in open hydrological systems ↗
CM Shakya, RK Bhattacharjya
Journal of Hydrology, 136406

Design and optimization of urban open drainage systems under compound flooding: a rank based sequential SWMM simulation optimization framework ↗
V Prakash, OP Vats, DJ Sarmah, RK Bhattacharjya, UR Ratnayake
Frontiers in Water 8, 1914363

A systematic hybrid parameterization of SWAT using SUFI-2 and PSO algorithms for historical flow simulation of the Brahmaputra River at Majuli: the world’s largest inhabited river island ↗
B Kalita, S Barman, WR Singh, RK Bhattacharjya
Journal of the Indian Society of Remote Sensing 54 (2), 571–586 Cited by ↗

Intelligent River Basin Management: Advances in Monitoring, Modeling, and Managing Water Resources Poster ↗
M Saharia, BR Chahar, B Rajagopalan, RK Bhattacharjya, IA Ahmed
AGU25

Rapid Flood Inundation Mapping and Flood Hazard Zonation using Sentinel-1 SAR data, a Case Study of Kopili River in Assam, India ↗
DJ Sarmah, RK Bhattacharjya
AGU Fall Meeting Abstracts 2025, H51S-VR8924

Assessing the Impact of Climate Change on Brahmaputra River Streamflow Using GCMs and Machine Learning ↗
S Shukla, V Kumar, KM Luxmi, RK Bhattacharjya
AGU Fall Meeting Abstracts 2025, H51S-VR8923

Sensitivity analysis of planetary boundary layer and microphysics parameterization schemes in WRF model for Guwahati urban domain ↗
V Prakash, OP Vats, A Chakravorty, U Ratnayake, RK Bhattacharjya
Journal of Hydrology: Regional Studies 60, 102506

Assessing future glacial lake formation and GLOFs susceptibility in the Mago Watershed, Arunachal Pradesh, India: C. Das et al. ↗
C Das, DJ Sarmah, M Das, RK Bhattacharjya
Journal of Earth System Science 134 (2), 111 Cited by ↗

Estimating flow velocities in data-scarce rivers using a dip-informed quasi-3D hydrodynamic model: A. Handique et al. ↗
A Handique, A Baruah, AK Sarma, RK Bhattacharjya
Journal of Earth System Science 134 (2), 106

Unraveling the nexus between socioeconomic facets and land use and cover change for analyzing agricultural productivity within riverine ecosystems ↗
G Talukdar, AK Sarma, RK Bhattacharjya
Surface, Sub-Surface Hydrology and Management: Application of Geospatial and … Cited by ↗

Integrated Planning and Design Framework for Sustainable and Resilient Urban Environments: A Case Study of Kumar Bhaskar Barman Township, North Guwahati, Assam ↗
RK Bhattacharjya, V Prakash, DJ Sarmah
E3S Web of Conferences 624, 01001

Bhattacharjya, R. K., Talukdar, B., Katsifarakis, K. L. (2023), “Sustainable Water Resources Management” Springer, (Hardcover ISBN 978-981-16-7534-8, eBook ISBN 978-981-16-7535-5)

Bennis, F, and Bhattacharjya, R.K. (2020), "Nature-Inspired Methods for Metaheuristics Optimization: Algorithms and Applications in Science and Engineering", Springer, (https://doi.org/10.1007/978-3-030-26458-1)

Sarma, A.K., Singh, V.P., Bhattacharjya, R.K., Kartha, S.A. (2018), "Urban Ecology, Water Quality and Climate Change", Springer, (https://doi.org/10.1007/978-3-319-74494-0)

Sarma, A.K., Singh, V.P., Kartha, S.A., Bhattacharjya, R.K. (2016), "Urban Hydrology, Watershed Management and Socio-Economic Aspects", Springer, (https://doi.org/10.1007/978-3-319-40195-9)

Kumar D., and Bhattacharjya R. K. (2020), "Forecasting Groundwater Fluctuation from GRACE Data Using GRNN", in Soft Computing: Theories and Applications, Springer, (https://doi.org/10.1007/978-981-15-4032-5_28)

Kalita H., Bhattacharjya R. K., and Sarma A. (2020), "Linked Simulation Optimization Model for Evaluation of Optimal Bank Protection Measures", in Nature-Inspired Methods for Metaheuristics Optimization, Springer, (https://doi.org/10.1007/978-3-030-26458-1_16)

Kumar D., Rajeev Gandhi, B.G. and Bhattacharjya R. K. (2020), "Firefly Algorithm and Its Applications in Engineering Optimization", in Nature-Inspired Methods for Metaheuristics Optimization, Springer, (https://doi.org/10.1007/978-3-030-26458-1_6)

Rajeev Gandhi, B.G. and Bhattacharjya R. K. (2020), "Differential Evolution and Its Application in Identification of Virus Release Location in a Sewer Line", in Nature-Inspired Methods for Metaheuristics Optimization, Springer, (https://doi.org/10.1007/978-3-030-26458-1_4)

Bhattacharjya R. K. (2020), "Efficiency of Binary Coded Genetic Algorithm in Stability Analysis of an Earthen Slope", in Nature-Inspired Methods for Metaheuristics Optimization, Springer, (https://doi.org/10.1007/978-3-030-26458-1_18)

Rajeev Gandhi, B.G. and Bhattacharjya R. K. (2020), "Introduction to Shuffled Frog Leaping Algorithm and Its Sensitivity to the Parameters of the Algorithm", in Nature-Inspired Methods for Metaheuristics Optimization", Springer, (https://doi.org/10.1007/978-3-030-26458-1_7)

Kumar D., Rajeev Gandhi, B.G. and Bhattacharjya R. K. (2020), "Introduction to Invasive Weed Optimization Method", in Nature-Inspired Methods for Metaheuristics Optimization, Springer, (https://doi.org/10.1007/978-3-030-26458-1_12)

Sophia S. and Bhattacharjya R. K. (2020), "A GA Based Iterative Model for Identification of Unknown Groundwater Pollution Sources Considering Noisy Data", in Nature-Inspired Methods for Metaheuristics Optimization, Springer, (https://doi.org/10.1007/978-3-030-26458-1_17)

Bhattacharjya, Rajib Kumar and Borah, Triptimoni (2016), "Coastal Aquifer Management Models: A Comprehensive Review on Model Development", in Urban Hydrology, Watershed Management and Socio-Economic Aspects, Springer. (https://doi.org/10.1007/978-3-319-40195-9_8)

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), pp. 751–765

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.

Ismallianto Isia, Tony Hadibarata, Ratih Indri Hapsari, Muhammad Noor Hazwan Jusoh, Rajib Kumar Bhattacharjya, Noor Fifinatasha Shahedan (2023), “Assessing social vulnerability to flood hazards: A case study of Sarawak's divisions”, International Journal of Disaster Risk Reduction, 97, 104052

Ismallianto Isia, Tony Hadibarata, Muhammad Noor Hazwan Jusoh, Rajib Kumar Bhattacharjya, Noor Fifinatasha Shahedan, Norma Latif Fitriyani and Muhammad Syafrudin (2023), “Identifying Factors to Develop and Validate Social Vulnerability to Floods in Malaysia: A Systematic Review Study”, Sustainability (Switzerland), 15(17), 12729.

Goswami, J., and 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), pp. 483–499

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), pp. 246–260

Ismallianto Isia, Tony Hadibarata, Muhammad Noor Hazwan Jusoh, Rajib Kumar Bhattacharjya, Noor Fifinatasha Shahedan,Aissa Bouaissi, Norma Latif Fitriyani andMuhammad Syafrudin (2023), “Drought Analysis Based on Standardized Precipitation Evapotranspiration Index and Standardized Precipitation Index in Sarawak, Malaysia”, Sustainability (Switzerland), 2023, 15(1), 734

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

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

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

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, 2022, 87, 102222

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, 04002

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), pp. 854–871

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

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), pp. 495–509

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), pp. 567–588

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), pp. 1–13

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), pp. 991–1014

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

Talukdar, G., Sarma, A. K, and Bhattacharjya Rajib Kumar (2020), "Mapping

Kumar, Dilip and Bhattacharjya, Rajib Kumar (2020), "Change in Rainfall Patterns in the Hilly Region of Uttarakhand due to the impact of Climate Change", Applied Environmental Research (Accepted).

Kumar, Dilip and Bhattacharjya, Rajib Kumar (2020), "Evaluating two GIS-based distributed hydrological models in the Bhagirathi-Alkhnanda river catchment", Journal of Water and Land Development (Accepted).

Marak, J. D. K, Sarma, A. K, and Bhattacharjya Rajib Kumar (2020), "Innovative trend analysis of spatial and temporal rainfall variations in Umiam and Umtru watersheds in Meghalaya, India", Theoretical and Applied Climatology, 142(3-4), pp. 1397–1412.

Vats Om Prakash, Sharma Bhrigumani, Stamm Juergen, and Bhattacharjya Rajib Kumar (2020), "Groundwater Circulation Well for Controlling Saltwater Intrusion in Coastal aquifers: Numerical Study with Experimental Validation", Water Resources Management (https://doi.org/10.1007/s11269-020-02635-z)

Marak, J. D. K, Sarma, A. K, and Bhattacharjya Rajib Kumar (2020), " Assessing the Impacts of Interbasin Water Transfer Reservoir on Streamflow", Journal of Hydrologic Engineering, 2020, 25(10), 05020034

Kumar, Dilip and Bhattacharjya, Rajib Kumar (2020), "Estimation of Integrated Flood Vulnerability Index for the hilly region of Uttarakhand, India", Journal of Hazardous, Toxic, and Radioactive Waste, ASCE, (https://doi.org/10.1061/(ASCE)HZ.2153-5515.0000540).

Das, Mamata. and Bhattacharjya, Rajib Kumar (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 (DOI: 10.22059/POLL.2020.299434.764)

Kumar, Dilip and Bhattacharjya, Rajib Kumar (2020), "Study of Integrated Social Vulnerability Index SoVIint of Hilly Region of Uttarakhand, India", Journal of Environmental and Climate Technologies, 24 (1), 105-122, (https://doi.org/10.2478/rtuect-2020-0007)

Barman Swapnali, and Bhattacharjya Rajib Kumar (2019), "ANN-SCS Based Hybrid Model in Conjunction with GCM to Evaluate the Impact of Climate Change on the Flow Scenario of River Subansiri", Journal of Water and Climate Change, (https://doi.org/10.2166/wcc.2019.221)

Leichombam, S., and Bhattacharjya, Rajib Kumar (2018), "A Hybrid Optimization Methodology for Optimal Identification of Pollution Sources considering the Source Locations and Fluxes as Unknown", Journal of Hazardous, Toxic, and Radioactive Waste, ASCE, (https://doi.org/10.1061/(ASCE)HZ.2153-5515.0000431).

Bhattacharjya, Rajib Kumar (2018), "A modified Penalty Parameter Approach for Optimal Estimation of UH with Simultaneous Estimation of Infiltration Parameters", Journal of The Institution of Engineers (India), (https://doi.org/10.1007/s40030-018-0311-x)

Sharma B , Rishi D.S., Mudai B.K. and Bhattacharjya, Rajib Kumar (2017), "Influence of clay lens on contaminant transport in unconfined coastal aquifers", European Water, 58: 359-364.

Hasda, Ranjan Kumar, Bhattacharjya, Rajib Kumar, Bennis, Fouad (2017), "Modified Genetic Algorithms for Solving Facility Layout Problems", International Journal on Interactive Design and Manufacturing, 11(3), 713-725.

Borah Triptimoni, and Bhattacharjya, Rajib Kumar (2016), "Development of an Improved Pollution Source Identification Model Using Numerical and ANN Based Simulation-Optimization Model", Water Resources Management, (https://doi.org/10.1007/s11269-016-1476-6).

Gandhi, Rajeev B.G., Bhattacharjya, Rajib Kumar, and Satish, Mysore, G. (2016), "Simulation-Optimization Based Source Identification Model for 3D Unconfined Aquifer Considering Source Locations and Number as Variable ", Journal of Hazardous, Toxic, and Radioactive Waste, ASCE (DOI: 10.1061/(ASCE)HZ.2153-5515.0000334).

Leichombam, S., and Bhattacharjya, Rajib Kumar (2016), "Identification of Unknown Groundwater Pollution Sources and Determination of Optimal Well Locations Using ANN-GA Based Simulation-Optimization Model", Journal of Water Resource and Protection, 8(3), 411-424

Barman Swapnali, and Bhattacharjya, Rajib Kumar (2015), "Comparison of linear regression, non-linear regression and artificial neural network model for downscaling of rainfall at Subansiri river basin, Assam, India", European Water, 51, 51-60.

Barman Swapnali, and Bhattacharjya, Rajib Kumar (2015), "Change in snow cover area of Brahmaputra river basin and its sensitivity to temperature", Environmental Systems Research, (https://doi.org/10.1186/s40068-015-0043-0).

Borah Triptimoni, and Bhattacharjya, Rajib Kumar (2014), "Development of Unknown Pollution Source Identification Models Using GMS ANN Based Simulation-Optimization Methodology", Journal of Hazardous, Toxic, and Radioactive Waste, ASCE, (https://doi.org/10.1061/(ASCE)HZ.2153-5515.0000242).

Kalita Hriday Moni, Sarma Arup Kumar, and Bhattacharjya, Rajib Kumar, (2014), "Evaluation of Optimal River Training Work using GA Based Linked Simulation Optimization Approach", Water Resources Management, 28(8), 2077-2098.

Bhattacharjya, Rajib Kumar, Ambuj Srivastava, and Satish Mysore, G. (2014), "A Hybrid-Optimization Approach for Estimating Parameters of Virus Transport Process in Aquifer", Journal of Hazardous, Toxic, and Radioactive Waste, ASCE, (https://doi.org/10.1061/(ASCE)HZ.2153-5515.0000195).

Dey Aveedibya, and Bhattacharjya, Rajib Kumar (2013), "Monitoring River Center Line and Width - A Study on River Brahmaputra", Journal of the Indian Society of Remote Sensing, 42(2),475-482.

Borah Triptimoni, and Bhattacharjya Rajib Kumar (2013), "Solution of Source Identification Problem By Using GMS And MATLAB", ISH Jurnal of Hydraulic Engineering, 19(3), 297-304.

Bhattacharjya Rajib Kumar, and Chourasia, Sandeep (2013), "Geomorphology Based Semi-Distributed Approach for Modelling Rainfall-Runoff Process", Water Resources Management, 27(2), 567-579.

Saharia, Manabendra, and Bhattacharjya Rajib Kumar (2012), "Geomorphology-based Time-lagged Recurrent Neural Networks for Runoff Forecasting", KSCE Journal of Civil Engineering, 16(5), 862-869.

Bhattacharjya Rajib Kumar (2011), "Solution of Groundwater Flow Inverse Problem Using Spreadsheet Solver", Journal of Hydrologic Engineering, ASCE, 16(5), 472-477.

Dilip Kumar and Rajib Kumar Bhattacharjya (2011), "Distributed rainfall runoff modeling", International Journal of Earth Sciences and Engineering, 4(6), 270-275.

Bhattacharjya Rajib Kumar (2010), "Discussion of Evolutionary Algorithms for the Determination of Critical Depths in Conduits", Journal of Irrigation and Drainage Engineering, ASCE, 136(3), 221-223.

Bhattacharjya Rajib Kumar and Satish, Mysore, G. (2010), "Optimal Design of a Water Conveying Canal Considering Seismic Stability of Side Slopes", Journal of Irrigation and Drainage, Wiley, 59(3), 291-302.

Bhattacharjya Rajib Kumar, Datta, Bithin, and Satish, Mysore, G. (2009), "Artificial Neural Network Model for Simulating Saltwater Intrusion Process in Coastal Aquifers with Noisy Training Data", KSCE Journal of Civil Engineering, 13(3), 205-215.

Bhattacharjya Rajib Kumar, Datta Bithin (2009), "ANN-GA Based Multiple Objective Management of Coastal Aquifers", Journal of Water Resources Planning and Management, ASCE, 135(5), 314-322.

Bhattacharjya Rajib Kumar, and Satish, Mysore, G. (2009), "Discussion of Flooding Probability Constrained Optimal Design of Trapezoidal Channels", Journal of Irrigation and Drainage Engineering, ASCE, 135(1), 129-131.

Bhattacharjya Rajib Kumar, and Satish, Mysore, G. (2008), "Flooding Probability Based Optimal Design of Trapezoidal Open Channel using Freeboard as a Design Variable", Journal of Irrigation and Drainage Engineering, ASCE 134(3), 405-408.

Bhattacharjya Rajib Kumar (2008), "Discussion of Invertible Alternatives to Normal and Lognormal Distribution", Journal of Hydrologic Engineering, ASCE 13(3), 197.

Bhattacharjya Rajib Kumar, and Satish, Mysore, G. (2007), "Discussion of Optimal Pumping from Skimming Wells", Journal of Hydrologic Engineering, ASCE 12(6), 706-707.

Bhattacharjya Rajib Kumar (2007), "Discussion of Alternate Decision Making in Water Distribution Network with NSGA II", Journal of Water Resources Planning and Management, ASCE, 133(6), 565-566.

Bhattacharjya Rajib Kumar, and Satish, Mysore, G. (2007), "Optimal Design of a Stable Trapezoidal Channel Section using Hybrid Optimization Techniques", Journal of Irrigation and Drainage Engineering, ASCE, 133(4), 323-329.

Bhattacharjya Rajib Kumar, Datta, Bithin, and Satish, Mysore, G. (2007), "Artificial Neural Networks Approximation of Density Dependent Saltwater Intrusion Process in Coastal Aquifers", Journal of Hydrologic Engineering, ASCE, 12(3),273-282.

Bhattacharjya Rajib Kumar (2006), "Optimal Design of Open Channel Section Incorporating Critical Flow Condition", Journal of Irrigation and Drainage Engineering, ASCE, 132(5), 513-518.

Bhattacharjya Rajib Kumar (2005), "Optimal Design of Open Channel Section Considering Freeboards", ISH Jurnal of Hydraulic Engineering, 3(11), 141-151.

Bhattacharjya Rajib Kumar and Datta, Bithin (2005), "Optimal Management of Coastal aquifer Using Linked Simulation Optimization Approach", Water Resources Management, 19(3), 295-320.

Jain, Ashu, Srinivasalu, Sanaga, Bhattacharjya Rajib Kumar (2005) "Determination of an Optimal Unit Pulse Response Function Using Real-Coded Genetic Algorithms", Journal of Hydrology, Elsevier, 303, 199-214.

Bhattacharjya, Rajib Kumar (2004) "Optimal Design of Unit Hydrograph Using Probability Distribution Functions and Genetic Algorithms", Sadhana, Academy Proceedings in Engineering Sciences, 29(5), 499-508.

Jain, Ashu, Bhattacharjya Rajib Kumar, and Srinivasalu Sanaga (2004), "Optimal Design of Composite Channel Using Genetic Algorithms", Journal of Irrigation and Drainage Engineering, ASCE, 130(4), 286-295.