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GeoAI & Climate Downscaling

Bridging the gap between global climate projections and local environmental realities through Generative AI and physics-informed learning.

I build AI pipelines that turn sparse environmental observations into continuous, analysis-ready data. Working across radar products, satellites, and in situ networks, I use generative adversarial networks, sequence models, and physics-informed learning to sharpen spatial detail, recover missing values, and flag extremes. These approaches make high-resolution digital twins of urban climates possible, preserving physical structure while amplifying signal fidelity for downstream decision tools.

Current priorities include tailoring AI architectures to multi-sensor fusion, enforcing physical constraints during training, and delivering interpretable outputs for planners and scientists. By combining deep learning with process knowledge, I aim to deliver fast, trustworthy datasets that support early-warning systems and resilient infrastructure design.

Representative Publications

Lee, J., & Dessler, A. E. (2024). Improved Surface Urban Heat Impact Assessment Using GOES Satellite Data: A Comparative Study With ERA‐5. Geophysical Research Letters. PDF
Lee, J., Berkelhammer, M., et al. (2025). Quality Assessment and Control of Urban Environmental Sensors using Physical Thresholding and Machine Learning-based Probabilities. Big Earth Data. PDF
Kotamarthi, R., ... Lee, J., et al. (2025) Artificial Intelligence-Enabled Digital Twin for U.S. Cities. Bulletin of the American Meteorological Society. PDF