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SOUTENANCE d’HABILITATION A DIRIGER DES RECHERCHES : Emilia SANCHEZ-GOMEZ – Understanding climate variability and predictability from observations, reanalysis and imperfect models

  Mercredi 29 juin 2016 à 10h00

  HDR Cerfacs       SALLE DE CONFERENCE JEAN-CLAUDE ANDRE    

Résumé:

In these 14 years as a climate researcher, a great part of my activity has been focused on the study of the North Atlantic-Europe climate variability and predictability from interannual to decadal timescales. The key objective is to understand the internal climate variability and how it can be modified in response to external forcings, as the anthropogenic emissions. In the North Atlantic, the large-scale atmospheric circulation, described in terms of weather regimes, can explain a great part of the local climate variability, since it modulates the temperature, precipitation and the storm-tracks intensity and pathways. I show here that weather regimes also allow the understanding of remote climate processes as tropical-extratropical teleconnections. Nevertheless in the midlatitudes areas climate signals are not easily detectable due to a large presence of chaotic variability.

A large body of my research has been also oriented to the evaluation of climate models (regional and global). Understanding the source of errors is crucial since most of our science relies on numerical modeling. I present a hierarchy of diagnostics, from an apparently simple analysis of the mean state bias, to the representation of the climate variability and more sophisticated process-based studies as the analysis of bias adjustment in seasonal and decadal forecasts.

Finally, I propose several perspectives aimed at i) improving our understanding of climate processes involving air-sea interactions and their influence of the large-scale atmospheric circulation over the midlatitude regions, and ii) reducing the uncertainty from climate models by proposing some alternatives to improve them.

Jury:

Prof. Olivier THUAL                        Correspondant
Prof. Francisco DOBLAS-REYES  Rapporteur
Dr. Boris DEWITTE                         Rapporteur
Dr. Laurent Li                                  Rapporteur
Prof. Noel Keenlyside                    Examinateur
Prof. Belen Rodriguez-Fonseca    Examinateur

L'AGENDA

Lundi

27

Mai

2024

🎓 Soutenance de Thèse : Thibault GIOUD

Lundi 27 mai 2024Du 14h00 à 18h00

  Thèses Cerfacs       Cerfacs, Toulouse, France    

Jeudi

30

Mai

2024

JOURNÉE des DOCTORANTS du Cerfacs (JDD2024@Cerfacs) : 30/05/2024

Jeudi 30 mai 2024Du 9h00 à 17h00

  Journée des Doctorants       CERFACS     

Lundi

03

Juin

2024

Bases théoriques pour la Simulation aux Grandes Echelles des écoulements en turbomachine

Du lundi 3 juin 2024 au mercredi 5 juin 2024

  Formation    

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