PSU Mark
Eberly College of Science Mathematics Department

Meeting Details

For more information about this meeting, contact Xiantao Li, Yuxi Zheng, Kris Jenssen, Jinchao Xu.

Title:Strategies for numerical prediction of the terrestrial water cycle
Seminar:Computational and Applied Mathematics Colloquium
Speaker:Chris Duffy, Civil Engineering, Penn State
This research is developing a fully-coupled approach to modeling the terrestrial water cycle based on the semi-discrete finite volume representation of for systems of partial differential equations. Our interest is in devising a concise yet fully-coupled representation of all important hydrodynamic processes affecting problems such as: flood, drought, tidal inundation, surface water-groundwater supply, contaminant transport. A major problem facing physics-based watershed simulation is the intensive space-time data requirements for atmospheric inputs (precipitation, radiation, wind fields, etc.), vegetation, soil, geologic properties. As a result the research has also focused on tools for automated data representation, domain decomposition, and model parameterization from national data sets. Examples are drawn from fully-coupled simulations of river-groundwater dynamics, atmosphere-groundwater feedback, and tidal dynamics in a coastal watershed. The research demonstrates how climate, weather and tidal dynamics interact with the terrestrial system with unexpected (and often unmeasured) effects, and further suggests the critical need for improved multi-physics modeling strategies.

Room Reservation Information

Room Number:MB106
Date:10 / 29 / 2010
Time:03:35pm - 04:25pm