UE Modèles pour la physico-chimie de l'atmosphère

Diplômes intégrant cet élément pédagogique :


This course demonstrates which processes steer the climate system and how they interplay with each other in climate models. The course consists of two parts: physical and chemical models. In the first part, we will briefly go trough the structure of all components of the climate system and will explore the major factors perturbing the system's equilibrium (climate forcing). Next, we will consider the sensitivity of the climate system to different types of forcing and look more precisely into the responses of the climate system to the forcing and associated climate feedbacks. Being armed with this knowledge, we will turn to the modeling of climate system. We will go trough all types of climate models - from simple energy balance models to highly complicated general circulation models. This will be supplemented by several practical exercises, in which we will make simple experiments with energy balance models and will interpret the results of these experiments.

In the second part of the course we will consider atmospheric chemistry models. Following the basic introduction into the history of atmospheric chemistry, we will consider the role of the atmosphere in global biogeochemical cycles, the oxidation capacity, and the driving mechanisms behind chemical transformations in the atmosphere. Next, we will study how basic concepts are applied in the construction of atmospheric chemistry models and will focus on processes like emission, deposition, and transport. We will further consider concepts of kinetics, photolysis, catalytic cycles, and chemical equilibria. Certain aspects and issues treated in the course will be addressed using models including hands-on experiences. Here, the results of web-based simulations of atmospheric chemistry for the forecast of the air quality in different target regions will be studied. Chemical and physical processes causing elevated concentrations of polluting compounds will be analyzed and presented by the participants.

Compétences visées

The final exam exists in an internal scientific conference organized by and for the participants with scientific presentations of articles related to the topic of the class and selected by the participants. The language of the class is English.

Informations complémentaires

Lieu(x) : Grenoble
Langue(s) : Anglais