CUAHSI 2017 Spring Cyberseminar Series

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Start Date: 
Friday, March 24, 2017 - 00:00

CUAHSI's 2017 Spring Cyberseminar Series
Heterogeneity, Complexity and Anomalous Transport in Hydrologic Systems
Fridays, March – April at 3:00 p.m ET

Host: Diogo Bolster, Notre Dame University 


Real hydrologic systems are heterogeneous and hierarchical, leading to transport processes occurring over disparate and broad ranges of spatio-temporal scales.  Many classical models of transport, while undoubtedly powerful and useful, are built on assumptions that simply fail to recognize these complexities.  As such they are incapable of predicting many features commonly observed in real systems. These behaviors are often called “anomalous”. They include processes with very large spatial jumps where solutes or particles quickly travel much larger distances than expected. Similarly trapping events can occur that hold back solutes and particles for much longer times than anticipated. Both the long jumps and trapping events are commonly characterized by power laws, rather than more conventional exponential and Gaussian distributions. Despite the name, anomalous transport is anything but that and is increasingly recognized as the norm across many disciplines in the hydrologic sciences, including flow and transport in highly heterogeneous aquifers as well as in flowing surface waters with hyporheic exchange. Additionally, such behaviors arise in related disciplines such as geomorphology in the fields of surficial processes and sediment transport. To overcome the limitations of classical modeling efforts, new classes of models have and continue to emerge, which successfully capture these so-called anomalous features. This cyberseminar series will focus on these efforts with expert speakers coming from the disciplines of subsurface and surface hydrology and geomorphology to outline these processes in accessible ways to the broader hydrology community. 

Speakers and Topics:

March 24, 2017

Not NORMAL: Anomalous transport in hydrology, hydrogeology, and geomorphology | Rina Schumer, Desert Research Institute

March 31, 2017

Linking Freshwater Transport and Quality: A New Frontier? | Antoine Aubeneau, Purdue University

April 7, 2017

Solute Transport in Heterogeneous Aquifers and Implications for Risk Assessment | Felipe de Barros, University of Southern California

April 14, 2017

Biological and chemical activities in confined flows: the role of heterogeneity and segregation | Pietro de Anna, University of Lausanne


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