Skip to Main content Skip to Navigation
Theses

Modélisation des circulations atmosphériques pour l'étude de la pollution des vallées alpines

Abstract : Local weather phenomena observed in alpine valleys frequently lead to the accumulation of emitted anthropogenic airborne species in the low layers of the atmosphere. The development of a numerical model allows reproducing the chemical evolution of air mass during POVA intensive period of observations. In Chamonix and Maurienne valley, computations of photochemical indicators (NOy, O3/NOz, H2O2/HNO3) prove the ozone regime to be control by volatile organic compounds. Moreover simulation highlighted that the major part of this secondary pollutant is regionally produced. The development of an indicator who localised ozone production sites can help to define abatement scenarios. The chemical mechanism RACM allows describing the evolution of many species. It is possible to conclude that in winter road traffic and heating are the main sources of volatile organic compounds.
Complete list of metadatas

https://tel.archives-ouvertes.fr/tel-00007982
Contributor : Guillaume Brulfert <>
Submitted on : Monday, January 10, 2005 - 11:44:32 AM
Last modification on : Thursday, November 19, 2020 - 3:54:10 PM
Long-term archiving on: : Friday, April 2, 2010 - 9:35:39 PM

Identifiers

  • HAL Id : tel-00007982, version 1

Collections

UJF | LEGI | CNRS | UGA

Citation

Guillaume Brulfert. Modélisation des circulations atmosphériques pour l'étude de la pollution des vallées alpines. Physique [physics]. Université Joseph-Fourier - Grenoble I, 2004. Français. ⟨tel-00007982⟩

Share

Metrics

Record views

512

Files downloads

5909