Roshanka Ranasinghe

Roshanka Ranasinghe (born 1967 in Kandy, Sri Lanka) is a coastal engineering professor in the Netherlands. He holds the AXA Chair in Climate Change Impacts and Coastal Risk at the Department of Coastal and Urban Risk and Resilience, IHE Delft Institute for Water Education. He is also a professor at the Department of Water Engineering and Management, University of Twente and a senior specialist at the Department of Resilient Ports and Coasts (Hydraulic Engineering Unit) at Deltares.

Biography

Education and career Roshanka Ranasinghe was educated at Trinity College, Kandy in Sri Lanka. He qualified in Civil Engineering in 1993 at the University of Peradeniya, Sri Lanka, with First Class Honours. In 1998, Ranasinghe received his doctorate in Coastal Engineering and Oceanography at the Centre for Water Research (CWR), University of Western Australia (Perth, Australia) with his thesis "Dynamics of Seasonally Open Tidal Inlets".

He has worked in both the academic and government sectors in Australia and the Netherlands, and has authored over 200 peer-reviewed articles and presented worldwide,

Ranasinghe also has over 20 publications in Nature Portfolio journals, where, since 2022, he has been a member of the editorial board of Scientific Reports, for which he guest edited a special collection on sea level rise.

Academic positions From 2008 to 2013, Ranasinghe was an associate professor at IHE Delft, an online tool launched in 2021 by IHE Delft that offers a comprehensive overview of state-of-the-art, global scale projections for sea level rise, coastal flooding, shoreline retreat, and extreme waves. This tool integrates multiple global data sets on coastal climate impact-drivers, providing users with a clear, up-to-date picture of potential future coastal hazards. he was Coordinating Lead Author in Chapter 12, a Lead Author of the Summary for Policymakers, and a Contributing Author in Chapters 9, 11 and the Atlas of the Working Group I contribution to the IPCC Sixth Assessment Report (AR6). Ranasinghe was also a Contributing Author in the IPCC Special Report on Oceans and Cryosphere in a Changing Climate (SROCC). SMIC, and G-SMIC for assessing climate change induced coastal risks. He has been at the forefront of the development of several widely used global scale projections of climate change driven coastal hazards, such as extreme sea levels, coastal flooding and shoreline retreat.

Awards Ranasinghe received the AXA Research Fund grant and holds the AXA Chair in Climate Change Impacts and Coastal Risks. His research focuses on studying the effects of climate change on coastal areas and evaluating adaptation strategies. These strategies include engineering solutions and softer approaches, such as spatial planning, innovative architecture, and construction techniques.

Publications

Selected journal papers

Nawarat, K., Reyns, J., Vousdoukas, M., Mulholland, E., van Ginkel, K., Feyen, L., Ranasinghe, R. 2026. Coastal Flood risk to European surface transport infrastructure at different levels of Global warming. Nature Climate Change, Basnayake, V., Duong, T., Ranasinghe, R., Almar, R., Wijnberg, K. 2026. A Global Assessment of Coastal Vulnerability and Dominant Contributors. Nature Communications, Vol 17, 528, Ranasinghe, R., Wang, Z., Bamunawala, J., Duong, T. 2025. On the time lag between sea-level rise and basin infilling at tidal inlets. Scientific Reports, Vol 15, 4231, Nawarat, K., Reyns, J., Vousdoukas, M., Duong, T., Kras, E., Ranasinghe, R. 2024. Coastal hardening and what it means for the World’s sandy beaches. Nature Communications, Vol 15, 10626, Vousdoukas, M., Clarke, J., Ranasinghe, R., Reimann, L., Khalaf, N., Duong, T., Ouweneel, B., Sabour, S., Iles, C., Trisos, C., Feyen, L., Mentaschi, L., Simpson, N. 2022. African Heritage Sites threatened by coastal flooding and erosion as sea-level rise accelerates. Nature Climate Change, Vol 12, 256-262, Tebaldi, C., Ranasinghe, R., Vousdoukas, M., Rasmussen, D. J., Vega-Westhoff, B., Kirezci, E., Kopp, R., Sriver, R., Mentaschi, L. 2021. Extreme Sea Levels at different global warming levels. Nature Climate Change, Vol 11, 746-751, Almar, R., Ranasinghe, R., Bergsma, E., Diaz, H., Melet, A., Papa, F., Vousdoukas, M., Athanasiou, P., Dada, O., Almeida, L., Kestenare, E. 2021. A global analysis of extreme coastal water levels with implications for potential coastal overtopping. Nature Communications, Vol 12, 3775, Vousdoukas, M., Ranasinghe, R., Mentaschi, L., Plomaritis, T., Athanasiou, P., Luijendijk, A., Feyen, L. 2020. Sandy coastlines under threat of erosion. Nature Climate Change, Vol 10(3), 260-263, Ranasinghe, R. 2020. On the need for a new generation of coastal change models for the 21st century. Scientific Reports, Vol 10, 2010, Ranasinghe, R., Duong, T., Uhlenbrook, S., Roelvink, D. and Stive, M. 2013. Climate Change impact assessment for inlet-interrupted coastlines. Nature Climate Change, Vol. 3, 83-87,