Cerfacs Enter the world of high performance ...

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


Project director : Daniel CARIOLLE

Senior researchers :

Emanuele EMILI

Roberto PAOLI


Post-docs :


Géraldine REA

Bojan SIC

Consultants :


Philippe MOINAT

PhD :

Hélène PEIRO

Visitors :










Distinction for the book “The Human Face of Computing”

superadmin |  25 July 2017

The book "The Human Face of Computing" was selected as one of the notable books in the "21st Annual Best of Computing - Notable Books and Articles" compiled by Computing Reviews. Mrs Francoise Chatelin contributed to this book with the chapter "Qualitative Computing"Read more

Extreme CFD workshop of the SUCCESS scientific group in Toulouse, 17-21 July 2017.

superadmin |  24 July 2017

The first edition of the Extreme CFD workshop was held in Toulouse at ENSEEIHT from the 17th to the 21st of July, 2017 under the hospices of the SUCCESS scientific group (). It gathered 25 participants from CERFACS, CORIA, EM2C, IMAG, IMFT, LEGI and SAFRAN TECH grouped in 9 projects. Each project...Read more