Long Term Ensemble Climate Modeling

(a) GRDC (Global Runoff Data Center) runoff climatology (observation), (b) the modeled runoff, and
(c) the modeled water table depth. These simulations are the first to model global water table (or groundwater
level) dynamics, and the first time to represent groundwater dynamics in Global Climate Models (GCMs),
which are powerful tools for projecting climate change.

*Climate change will affect our lives. Rising temperatures will alter agriculture, sea levels, and coastal ecologies and increase the number and strength of extreme weather events like hurricanes and floods. But how these effects will be felt, where they will occur, and how soon, is unclear.

*To preempt a catastrophe, scientists around the world are simulating the future changes on powerful supercomputers, making climate modeling one of high-performance computing’s (HPC) most important responsibilities.

*Drs. Zong-Liang Yang and Guo-Yue Niu, experts in land-surface and climate modeling at The University of Texas at Austin’s Jackson School of Geosciences, use the Lonestar supercomputer at TACC to create and test new models that quantify climate change and assess the impact of those changes on Texas. Niu’s current project parameterizes the impacts of various environmental processes and adds new features, like ground water and stream-flow, to the model for more realistic simulations and more accurate predictions.

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