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Seminar | Environmental Science Division

Hydrology in the Supercomputing Age

Abstract: We are in the midst of a revolution in computing and data. In the past 50 years, we have moved from electrical analog models to massively parallel computer systems. The fastest computers in the world when landmark papers such as Freeze and Harlan were written are much slower than the average smartphone of today.

Hydrology is taking advantage of this revolution in many ways. Computational hydrology seeks to leverage modern computing capacity to study water and energy fluxes and stores across the hydrologic cycle at spatial scales and complexity not previously possible. Integrated hydrologic simulations that couple boundary layer, vegetation, and land energy processes with surface and subsurface hydrology have great potential to advance our understanding of terrestrial hydrology spanning small catchments to the continental scale. Several movements within hydrology, such as the hyper-resolution approach, have organized and accelerated this goal.

Hydrologic simulation from a historical perspective, starting with the early watershed models to more modern, integrated approaches that realize blueprints laid out fifty years ago will be presented. The lecture will also discuss how computational advances are shaping our simulation capabilities, changing the questions that we are able to ask as scientists, and changing how we educate our students.

High-resolution, continental-scale simulation is an exciting component of computational hydrology forecasting and scientific discovery. It will outline a path to move beyond our traditional siloed simulation platforms and to leverage these large datasets and massive community development investments to better connect our hydrologic models to the communities outside of hydrology.

Bio: Reed Maxwell is on the faculty of the Geology and Geological Engineering Department, core faculty in the Hydrologic Science and Engineering Program, and director of the Integrated GroundWater Modeling Center at the Colorado School of Mines. His research interests are focused on understanding connections within the hydrologic cycle and how they relate to water quantity and quality under anthropogenic stresses. He holds a Ph.D. degree in environmental water resources from the Civil and Environmental Engineering Department at the University of California, Berkeley.

If you are likely to attend, please notify John Quinn. A headcount will be helpful considering the current directive capping gatherings at 30 people.