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Aviation and environment

Air transport and the greenhouse effect

Atmospheric composition is the result of natural and anthropogenic emissions combined with transport and chemical processes. Aircraft emissions can have an impact on atmospheric chemistry and on its radiative balance. For example, contrails formed from emissions of water vapour and soot particules can lead to the formation of cirrus clouds.

Emissions of nitrogen oxides perturb the natural cycles and open the way to ozone production or destruction depending on local altitude and insolation. These ozone perturbations along with the CO2 emissions, water vapour, sulphur and soot particles allow additional clouds to form and may increase the greenhouse effect. The same local perturbations are observed when a spacecraft is launched.

In this field of research, CERFACS focuses on the time-evolution of the atmospheric chemical composition and on the anthropogenic impact, especially on the effect of the chemical and particulate emissions from aviation. The AE team has developed a scientific expertise on the modelling of the effluents and their transformation in the different phases that follow the lanch of a spacecraft, in particular the transition to the “hot” chemistry located at the nozzle outlet and the “cold” chemistry for the high atmosphere.

Evaluate the impact of antropogenic emissions

In that context, the monitoring of atmospheric composition is of particular importance. The objective is to detect and possibly attribute the observed changes to natural or anthropogenic forcing. The AT team is involved in national and European projects centered on the development and the implementation of data assimilation systems, gas for trace gases and particles central to atmospheric chemistry.

The AE team is composed of about ten researchers who work closely on the national level with CERFACS associated laboratories like CNRM, ONERA teams, CNRS and aeronautical industry. The team is also involved in numerous projects, especially European projects that include the main institutions present in the atmospheric environment field.

Main partners : CNRM, CEPMMT, DLR, Latmos, LISA, LSCE, Onera

CERFACS challenge : Modest

National and international current projects :

IMPACT : climate impact of the evolution of air traffic

MACC : Data assimilation of minor constituents for the atmophere monitoring

TC2 : contrails and climate

TEAM COMPOSITION

Project director : Daniel CARIOLLE

Senior researchers :

Emanuele EMILI

Roberto PAOLI

Odile THOURON

Post-docs :

Franck AUGUSTE

Géraldine REA

Bojan SIC

Consultants :

Andrea PIACENTINI

Philippe MOINAT

PhD :

Hélène PEIRO

Visitors :

Olivier PANNEKOUCKE

 

 

 

 

 

 

 

NEWS

CECI Contribution to CNRS’ “Petit Illustré” on Complex Systems (CNRS Edition)

ROGEL |  12 October 2017

CECI (Cerfacs, CNRS) and IMFT are both working on numerical modelling of the processes causing river flooding and their uncertainties. A common contribution on this subject, signed by Sophie Ricci and Hélène Roux, appears in Vol. 34 of the "Petit Illustré" collection, edited by CNRS.Read more


CERFACS was present at the European Researcher Night 2017 at Toulouse

thual |  1 October 2017

"Can we get an engine, an airplane or the entire Earth into a computer?". Such was the catchy title of the CERFACS stand  Friday September 29th, for the "European Research Night" whose theme was "Impossible". A hundred people at the "Quai des Savoirs" in Toulouse took a close interest in the...Read more

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