Sebastian R.O. Marshall

I am a Ph.D. researcher at Johns Hopkins University in the Department of Environmental Health and Engineering, on the Geography and Environmental Engineering track. My research develops next-generation AI/ML-driven hydrological models and real-time flood forecasting systems that turn satellite data and climate projections into actionable intelligence for vulnerable communities.

From engineering compound flood risk frameworks that protect 250,000+ coastal residents across 13 Caribbean Small Island Developing States to building automated calibration tools for watershed models used by researchers worldwide, my work sits at the intersection of computational hydrology, remote sensing, and machine learning.

My journey has taken me through 7 countries across 3 continents · from Jamaica to France, the Netherlands, Spain, Germany, China, and the United States, giving me a uniquely global perspective on water challenges. I am fluent in English and Mandarin Chinese, and my research interests include coastal morphology, hydrology, remote sensing, climate change, and machine learning.