Breeding, Singular Vectors, Lyapunov Vectors and Data Assimilation

Thursday, May 2, 2002 - 2:00pm - 2:45pm
Keller 3-180
Eugenia Kalnay (University of Maryland)
Joint work with Matteo Corazza and DJ Patil, with the collaboration of Istvan Szunyogh, Ed Ott, Brian Hunt, Jim Yorke and Ming Cai.

We will discuss the relationship between bred vectors, singular vectors and Lyapunov vectors, and the errors in data assimilation systems, and the implications of the low-dimensionality of the atmospheric attractor recently discovered. The potential for the use of breeding in an almost cost-free approach to the correction of the errors of the day will be also presented. If time permits, we will discuss the application of breeding for ocean data assimilation.