CLIMATE AND EARTH
SYSTEM SCIENCES
Photo: UHH/Denstorf
22 June 2020
Photo: Jairo Segura
We are proud to announce the successful disputation of our SICSS member Jairo Alonso Segura Bermudez.
His dissertation “On the Empirical Orthogonal Functions representation of the ocean circulation” was supervised by PD. Dr. Christian Franzke and Prof. Dr. Johanna Baher, with close collaboration with Dr. Gualtiero Badin.
Jairo's doctoral thesis consisted of applying a reduction method using empirical orthogonal functions (EOFs) on different simple large scale wind-driven ocean circulation models and reconstructing the the original system by using the reduced fields. He used novelty concepts as the optimal assignment and Wasserstein distance as a new alternative method to compare attractors and to evaluate the fidelity of the reconstruction. He found that a satisfactory reproduction can be achieved for small variations in the wind stress profile but for more complex systems implementing further empirical corrections could make the method more efficient. The method resulted in a promising alternative for reducing ocean models and it has potential future applications.
Jairo was a member of the Group Theoretical Meteorology at Universität Hamburg.