List of publications in peer-reviewed journals: 17 journal articles

17. Padiyedath Gopalan, S., Hanasaki, N., Seta, H., Ogawada, D., and Oki, T. (2026). The water available for industrial sector (WAIS) framework for assessing the industrial water deficit risk while securing downstream availability, Environmental Research Letters, 21 084006, https://doi.org/10.1088/1748-9326/ae583a

16. Boschee, A., Alborzi, A., Alexander, A. C., Arheimer, B., Bel Hadj Ali, S., Blöschl, G., Castelletti, A., Chen, X., Dogra, A., Du, E., Duku, J., Fiori, A., Garcia, M., Grimaldi, S., Hanasaki, N., Kim, Y., Kreibich, H., Li, C., Matin, M., Medeiros, P., Mehran, A., Meira Neto, A. A., Nakai, F., Nakamura, S., Nguyen, P., Nobert, J., Owusu, A., Padiyedath Gopalan, S., … AghaKouchak, A. (2026). The coupled hydrology–human activity information (CHHAI) dataset: a global benchmark dataset for model comparison and evaluation. Hydrological Sciences Journal, 1–13. https://doi.org/10.1080/02626667.2026.2663050

15. Seizarwati, W., Hanasaki, N., Padiyedath Gopalan, S., and Oki, T. (2026). Impacts of water supply leakage and inter-basin water transfer on groundwater dynamics in Greater Jakarta, Journal of Hydrology: Regional Studies, 64, 103121, https://doi.org/10.1016/j.ejrh.2026.103121

14. Umer, M., Hanasaki, N., Padiyedath Gopalan, S., Ali, Z., and Oki, T. (2025). Umer (2025). Incorporating dynamic crop area in hydrological model to address interannual variability in water withdrawal and implication of sustainable water management, Journal of Hydrology, 661, Part C, 133778, https://doi.org/10.1016/j.jhydrol.2025.133778

13. Padiyedath Gopalan, S., Hanasaki, N., Champathong, A., and Oki, T. (2024). Adaptation portfolio – a multi-measure framework for future floods and droughts, npj Natural Hazards, 1, 48, https://doi.org/10.1038/s44304-024-00048-1

12. Padiyedath Gopalan, S., Champathong, A., Sukhapunnaphan, T., Nakamura, S., and Hanasaki, N. (2022). Potential impact of diversion canals and retention areas as climate change adaptation measures on flood risk reduction: A hydrological modelling case study from the Chao Phraya River Basin, Thailand, Science of The Total Environment, 841, 156742, https://doi.org/10.1016/j.scitotenv.2022.156742

11. Padiyedath Gopalan, S., Champathong, A., Sukhapunnaphan, T., Nakamura, S., and Hanasaki, N. (2022). Inclusion of flood diversion canal operation in the H08 hydrological model with a case study from the Chao Phraya River Basin: Model development and validation, Hydrology and Earth System Sciences, 26, 9, 2541-2022, https://doi.org/10.5194/hess-26-2541-2022

10. Padiyedath Gopalan, S., Hanasaki, N., Champathong, A., and Tebakari, T. (2021). Impact assessment of reservoir operation in the context of climate change adaptation in the Chao Phraya River basin, Hydrological Processes, 35, 1, e14005, https://doi.org/10.1002/hyp.14005

9. Padiyedath Gopalan, S., Kawamura, A., Amaguchi, H., Azhikodan, G. (2020). A generalized storage function model for the water level estimation using rating curve relationship, Water Resources Management, 34, 1, 2603-2619, https://doi.org/10.1007/s11269-020-02585-6

8. Padiyedath Gopalan, S., Kawamura, A., Amaguchi, H., Takasaki, T., Azhikodan, G. (2019). A bootstrap approach for the parameter uncertainty of an urban-specific rainfall-runoff model, Journal of Hydrology, 579, 1, 124195, https://doi.org/10.1016/j.jhydrol.2019.124195

7. Padiyedath Gopalan, S., Kawamura, A., Amaguchi, H., Azhikodan, G. (2019). A generalized urban storage function model considering spatial rainfall distribution, Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering), 75, 2, 223–228, https://doi.org/10.2208/jscejhe.75.2_I_223

6. Padiyedath Gopalan, S., Kawamura, A., Amaguchi, H., Azhikodan, G., Suzuki. T. (2019). Storm runoff analysis by generalised storage function model, Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research), 75, 5, 99–105, https://doi.org/10.2208/jscejer.75.I_99

5. Padiyedath Gopalan, S., Kawamura, A., Takasaki, T., Amaguchi, H., Azhikodan, G. (2018). An effective storage function model for an urban watershed in terms of hydrograph reproducibility and Akaike information criterion, Journal of Hydrology, 563, 1, 657–668, https://doi.org/10.1016/j.jhydrol.2018.06.035

4. Padiyedath Gopalan, S., Kawamura, A., Amaguchi, H., Azhikodan, G. (2018). Parameter uncertainty analysis of a storage function model using bootstrap method for an urban watershed, Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering), 74, 5, 151¬–156, https://doi.org/10.2208/jscejhe.74.5_I_151

3. Padiyedath Gopalan, S., Kawamura, A., Amaguchi, H., Azhikodan, G. (2018). Effect of lag time in Kimura’s storage function model on hydrograph reproducibility for an urban watershed compared with Prasad’s model, Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research), 74, 5, 69–77, https://doi.org/10.2208/jscejer.74.I_69

2. Padiyedath Gopalan, S., Kawamura, A., Takasaki, T., Amaguchi, H., Azhikodan, G. (2018). Performance evaluation of urban storage function (USF) model compared with various conventional storage function models for an urban watershed, Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering), 74, 4, 973–978, https://doi.org/10.2208/jscejhe.74.I_973

1. Padiyedath Gopalan, S., Kawamura, A., Amaguchi, H., Azhikodan, G. (2017). Baseflow estimation for tropical wet and dry climate regions using recursive digital filters, Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research), 73, 5, 9–16, https://doi.org/10.2208/jscejer.73.I_9

List of Datasets published

3. Padiyedath Gopalan, S., Hanasaki, N., Novak, L., and Schewe, J. (2026): ISIMIP3b Inter Basin Water Transfer (v1.0). ISIMIP Repository. https://doi.org/10.48364/ISIMIP.821399

2. Boschee, A., Alborzi, A., Alexander, A., Ali, S. B. H., Arheimer, B., Blöschl, G., Castelletti, A., Chen, X., Dogra, A., Du, E., Duku, J., Fiori, A., Garcia, M., Padiyedath Gopalan, S., Grimaldi, S., Hanasaki, N., Kim, Y., Kreibich, H., Li, C., Mahendran, R., Matin, M., Medeiros, P., Mehran, A., Neto, A. A. M., Nakai, F., Nakamura, S., Nguyen, P., Nobert, J., Owusu, A., Pereira, B., Pouladi, P., Pouladi, M., Sadegh, M., Sangiorgio, M., Schoppa, L., Shrestha, A., Sivapalan, M., Sousa, D., Sunkara, S. V., Tian, F., Trabelsi, F., Velpuri, N., Volpi, E., Wang, J., Wang, S., Wu, J., Yuan, X., AghaKouchak, A. (2026). Coupled Hydrology-Human Activity Information (CHHAI) dataset, HydroShare, https://doi.org/10.4211/hs.e011b48fabd2465eb5135275d2f3a93e

1. Padiyedath Gopalan, S. and Hanasaki, N. (2022). Code of “Inclusion of flood diversion canal operation in the H08 hydrological model with a case study from the Chao Phraya River basin: model development and validation”, Zenodo [code], https://doi.org/10.5281/zenodo.6544897

Awards/Academic Scholarships and Achievements:

1) ‘Sardar Patel Outstanding Indian Council of Agricultural Research (ICAR) Institution Award’ for securing 1st Rank in B. Tech Agricultural Engineering from Kerala Agricultural University from 2007 to 2011.
2) 90th Rank in GATE (Graduate Aptitude Test in Engineering) in 2011 under Agricultural Engineering stream and received Teaching Assistantship by Ministry of Human Resource Development (MHRD), Govt. of India during M. Tech (2012-2014).
3) ‘Tokyo Human Resource Fund for City Diplomacy’ Scholarship by Tokyo Metropolitan Government, Japan for doing Doctoral studies at the Tokyo Metropolitan University from October 2016 to September 2019.
4) “Great Efforts in Direct Human Forcing (DHF) Input Data Creation” award from Inter-sectoral Impact Model Intercomparison Project (ISIMIP) funded by the European Union for creating the global inter-basin water transfer input data inventory in 2023.

Status of Conferences: 22 international conferences and 12 national conferences

Membership in Professional Bodies
1) Japan Society of Civil Engineers (JSCE)
2) Japan Society of Hydrology and Water Resources (JSHWR)
3) European Geosciences Union (EGU)
4) American Geophysical Union (AGU)
5) Asia Oceania Geosciences Society (AOGS)

Peer-reviewer of the following journals
1) Earth System Science Data
2) Earths Future
3) Environmental Monitoring and Assessment
4) Frontiers in Water
5) Hydrological Processes
6) IPCC 6th Assessment Report by Working Group II
7) Journal of Earth System Sciences
8) Journal of Hydrology
9) Journal of JSCE Environmental Research
10) Journal of Water Resources Planning and Management
11) Nature Communications
12) Nature-Scientific Reports
13) Ocean Engineering
14) Science of the Total Environment
15) Stochastic Environmental Research and Risk Assessment
16) Sustainable Water Resources Management
17) Water Resources Research