CSDMS 2016 annual meeting poster EthanCoon
Exploring post-fire hydrology using a multiphysics modeling framework
Richard Middleton, Los Alamos National Laboratory Los Alamos New Mexico, United States. rsm@lanl.gov
Eugene Kikinzon, Los Alamos National Laboratory Los Alamos New Mexico, United States. kikinzon@lanl.gov
David Moulton, Los Alamos National Laboratory Los Alamos New Mexico, United States. moulton@lanl.gov
Abstract:
Understanding the impact of disturbance on hydrology is of critical importance for many regions, but especially the US Southwest. Increasing fire intensity, size, and frequency, along with insect infestation and ecosystem demography change all result in significant short and long-term changes in hydrology. Understanding and predicting this impact requires a rich set of process models with complex, uncertain coupling. We present the use of the Advanced Terrestrial Simulator (ATS), an ecosystem hydrology model, to understand changes to the Jaramillo Watershed, a primary watershed in northern New Mexico, after the Thompson Ridge Fire in 2013. We demonstrate how ATS’s multiphysics management code, Arcos, uses interfaces and dependency graphs to allow model structure uncertainty to be explored. New process representation is quickly developed and coupled to existing model components in tightly coupled ways. Finally, we show a series of numerical experiments that decouple the roles of litter, duff, and canopy on immediate post-fire hydrology in the Upper Jaramillo.
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