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Applied Math Perspectives on Stochastic Climate Models ( 2 ) - Andrew J. Majda

1,234 views · Published 19 April 2013 · 1:29:23 · Indexed 30 September 2026

Channel: International Centre for Theoretical Sciences · 2013 · Science & Technology

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Lecture 2: Applied Math Perspectives on Stochastic Climate Models

Abstract:
We are entering a new era of Stochastic Climate Modeling. Such an approach is needed for several reasons: 1) to model crucial poorly represented processes in contemporary comprehensive computer models such as intermittent organized tropical convention in the atmosphere and mesoscale/submesoscale eddies in the ocean; 2) to quantify uncertainty in intermediate and long rang forecasts where both uncertainty in initial data and forcing play a role 3) to represent unresolved stochastic backscatter from small scales to large scales in midlatitude dynamics. This lecture has three parts which illustrate how contemporary applied mathematics contributes novel stochastic ideas and potentially practical algorithms for these important problems. The use of judicious simplified but complex mathematical models for turbulent dynamical systems will be emphasized throughout the lecture. The first topic is joint work with Boualem Khouider and Yevgeniy Frenkel, the second topic with Themis Sapsis, and the third topic with Ian Grooms. All of the references in this lecture can be found at http://www.math.nyu.edu/faculty/majda/.

Date: January 23, 2013
Time: 4:00pm - 5:30pm
Vanue: Seminar Hall, ICTS-TIFR, IISc
(Participation by Invitation only)

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