TITLE:

Global Modeling with NASA Supercomputing Technology:

When Sandy Meets Lorenz

DATE:

Friday, November 21st, 2014

TIME:

3:30 PM

LOCATION:

GMCS 214

SPEAKER:

Dr. Bo-Wen Shen. Department of Mathematics and Statistics at SDSU

ABSTRACT:

In this talk, I will present the real-world model simulations of Hurricane Sandy to illustrate how the multiscale processes associated with large-scale tropical waves and an MJO may contribute to the predictability of Sandy. I will then discuss theoretical results with modified Lorenz models to examine the role of nonlinearity and the appearance of a saddle point in producing chaotic responses (i.e., diverged trajectories), suggesting the possible reasons why some models failed to capture the northwestward turn for Sandy. The enabling roles played by the parallel computing and concurrent visualization technology will be also discussed.

HOST:

Dr. Satchi Venkataraman

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