Description:
I am a post-doctoral researcher working on the topic of Nature-Based Solutions (NBS). I joined the HM&Co laboratory in January 2025, and I am working under the guidance of Dr.Pierre-Antoine Versini.
My current research is primarily focused on assessing the impact of Green Roofs when subjected to climate change in the future. This involves the simulation of precipitation, temperature, and evapotranspiration fields for the future climate scenarios, through a multi-fractal approach. When NBSs are designed to cater to the future climate demands, it is essential to evaluate their effectiveness subject to the extreme variabilities in geophysical fields caused by climate change. Multi-fractal analysis provides a way to simulate these extremities by adhering to the universal nature of scaling laws. The hydrological response of green roofs when simulated with future climate scenarios can help in arriving at optimal design configurations that can facilitate a zero-discharge solution.
Background:
I completed my Master’s in Water Resources Engineering from Visvesvaraya National Institute of Technology, India, in 2019.
I acquired my Ph.D. degree from the Indian Institute of Technology Madras in 2024. My Ph.D. thesis was focused on the development of modeling tools that can simulate the hydrological processes within Low Impact Development (LID) measures through a physics-based analytical approach for river basin scale studies. The study involved the development and integration of the LID modeling tools with the hydrological modeling software- Soil Water Assessment Tool (SWAT), and the development of a simulation-optimization framework to estimate optimum LID design parameters for water resources management at the river basin scale.
Awards:
Received the Institute Medal for Academic Excellence in 2019 from Visvesvaraya National Institute of Technology
Recipient of the Prime Minister’s Research Fellowship (PMRF) during Ph.D.
Publications:
- Subrahmanian, S., Modi, K., Bhallamudi, S. M., & Narasimhan, B. (2024). Development of a multi-layer green-ampt infiltration based modeling framework for hydrologic process simulation and design of various low impact development measures for mitigating urban flooding. Urban Water Journal, 21(7), 859–876. https://doi.org/10.1080/1573062X.2024.2360181
- Subrahmanian, S., A. R. Sankarbalaji, S. M. Bhallamudi, and B. Narasimhan. 2025. “A new simulation − optimization framework based on multi-layer Green-Ampt infiltration model and genetic algorithm for developing planning guidelines of low impact development measures at river basin scales.” Hydrol., 658 (February): 133139. Elsevier B.V. https://doi.org/10.1016/j.jhydrol.2025.133139
- S Sreethu and Rajesh Gupta 2020 IOP Conf. Ser.: Earth Environ. Sci. 491 012010DOI 10.1088/1755-1315/491/1/012010
- Sreethu, S., Narasimhan, B., Bhallamudi, S.M. (2024). Simplified Process Model Representation of Low Impact Development Techniques for Watershed Scale Analysis. In: Sannasiraj, S.A., Bhallamudi, S.M., Rajamanickam, P.S., Kumar, D. (eds) Riverine, Estuarine and Marine Hydraulics. IAHRAPD 2022. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-97-6009-1_8
- Balaji Narasimhan, S. Sreethu, Krushil Modi, R. S. Arun, Renato Anelli, Maryam Imani, and S. Murty Bhallamudi.(2023) “Sustainable urban drainage systems”. IWA Publishing. https://doi.org/10.2166/9781789063714