Talk by Jonathan Frame, University of Alabama: Beyond catchment boundaries: extending geospatial context for large-domain hydrological prediction

Image
Digital Blue Water Drop with AI Computer Code

When

noon – 12:50 p.m., Oct. 2, 2024
Weekly Seminar Format

Available in-person and via Zoom. Contact the department to subscribe to the email list (zoom link provided in announcement).

Abstract

Multi-scale hydrological and climatological phenomena, captured in geospatial data and large-domain simulations, can be exploited using machine learning (ML) to enhance predictions and process understanding across hydrological scales and boundaries. Large-domain hydrologic simulations are increasingly used for high-stakes forecasts. However, the potential of continental-scale hydrological data is not yet fully realized. ML is utilized to exploit large geospatial data and the full geospatial context of large-domain hydrological predictions, enhancing the accuracy of forecasts across diverse hydrological conditions, aiding in monitoring and response to natural hazards and improving our understanding of hydrological processes and global water cycle dynamics.

This presentation will cover key studies including:
  • Using the U.S. National Water Model and a convolutional neural network (NWM-CNN), we achieved better accuracy in flood predictions than the deployed HAND method, demonstrating the value of large-domain data with rich geospatial hydrological context (Frame et al., 2024). 
  • GOES imagery and a CNN were used to identify atmospheric rivers on the Pacific West Coast, highlighting the usefulness of spatial context data for real-time monitoring (Yadav et al., 2024). 
  • An ML model, utilizing GOES imagery, predicted snow water equivalent (SWE) at the catchment scale, showing a significant correlation with full-disc GOES images (Neisary et al., 2024). 
  • ML models can manage spatiotemporal biases effectively, providing a deeper understanding of hydrological processes beyond catchment boundaries (Frame et al., 2023).
The presentation will highlight the forward-looking potential of leveraging large data and spatial context in hydrological modeling, showcasing how these advancements contribute to more accurate and comprehensive hydrological forecasts in the next generation of large-scale models.
Bio

Dr. Jonathan Frame: Email | Google Scholar

Additional content coming soon

Contacts

Kim Wood, Weekly Colloquium Coordinator