Interfaces and Troposphere
Logo LMD

Members of the InTro group study the physical and chemical properties of the troposphere and its interfaces. Our scientific interests include :

  • Regional climate and water cycle
    Study of the Water cycle in InTRo is focused on the Mediterranean region, in the framework of international initiatives HyMEx and MedCORDEX, but also in the basins of the major Chinese rivers. In the Mediterranean area, studies of the hydrological cycle and hydrological extremes (extreme precipitation, dry spells) has relied in part on the RegIPSL regional coupled modelisation platform, under development in the InTRo team in collaboration with other IPSL teams. Scientific focuses in the team include interactions between aerosols and precipitation, studying the runoff of major hydrologic basin including major Chinese rivers for which anthropogenic use of the water is critical. Study of the regional water cycle is one of the strong reasons why the InTRo team is currently strongly involved in the development of the RegIPSL regional coupled model.
  • Chemistry-transport from urban to hemispheric scales
    Chemistry-transport and study of atmospheric composition is an important matter of study for the InTRo team. In particular, the team is at the heart of the development of the CHIMERE chemistry-transport model, which is largely used both in France and abroad for research and for operational air quality simulations, including French national previon program Prev’Air and European prevision platform CAMS. Scientific focuses in the team include studying wildfire emissions, including the development of the APIFLAME model, studying the mineral dust emissions from arid areas and their subsequent transport, as well as transport of volcanic plumes.
  • Impact of climate on renewable energies
    A recent topic in InTRo, the activities of the team in this field deal with understanding the variability and trends of the windmill production potential, including reexamination of the statistical modelling of instant wind value, studies of the feasibility and added value of seasonal prevision of the wind, and decadal-scale studies involving long-term trends and the impact of air-sea coupling on the aeolian potential. These activities are part of the TREND-X program that unites the efforts of ten École Polytechnique laboratories under the leadership of LMD. In collaboration with INRIA, the WINDPOS software for lagrangian stochastic modelling of wind has been developed and includes the effect of the windmill farms on the wind field itself.
The research projects are mainly applied over the regions:
  • Mediterranean area
  • Western Africa
  • Southern America
  • Arctic region

Recent events

  1. Bastien Alonzo, PhD defense: 16 november 2018, 10h, Amphi Gregory, Polytechnique.
    Seasonal forecasting of wind energy resource and production in France and associated risk
  2. Nicolas Da Silva, PhD defense: 30 november 2018, 14h, Amphi Gay-Lussac, Polytechnique.
    Autour des relations température-précipitations extrêmes dans la région Euro-Méditerranéenne

Recent presentations

  1. Pennel R. et al., 2018, The IPSL Regional Earth System Model (RegIPSL): structure and development,
  2. Polcher J. et al., 2018, Strategic planning for the Regional Modelling at IPSL : 2020-2025

Recent results

  1. Tuccella P., L.Menut, R.Briant, A.Deroubaix, D.Khvorostyanov, S.Mailler, G.Siour, S.Turquety, Implementation of aerosol-cloud interaction within WRF-CHIMERE online coupled model: evaluation and investigation of the indirect radiative effect from anthropogenic emission reduction on the Benelux, Atmosphere 2019, 10, 20; doi:10.3390/atmos10010020,
  2. Da Silva, N., Mailler, S., and Drobinski, P.: Aerosol indirect effects on summer precipitation in a regional climate model for the Euro-Mediterranean region, Ann. Geophys., 36, 321-335,, 2018.

Development of geophysical models
CHIMERE, a chemistry-transport model
The CHIMERE model
OPTSIM, a model to observations tool for aerosol
The OPTSIM model
NEMO-Med, an ocean model
The NEMO-Med model

  • Most Intro people work at the Laboratoire de Météorologie Dynamique, located on the Ecole Polytechnique campus in Palaiseau. [Site map]
  • Contact by email:
  • Contact by phone: add prefix: Palaiseau X=+33 1 69 33 ; Jussieu J=+33 1 44 27
  • Fax : +(33) 1 69 33 51 08.
  • Previously with INTRO
INTRO people
ALONZO Bastien
Post-doc, Polytechnique
X 51 70         ARSOUZE Thomas
Research scientist ENSTA-ParisTech
X 51 71

Research Engineer Polytechnique
X 51 26         BESSAGNET Bertrand
Researcher, Polytechnique
X 51 83

Research scientist, DR CNRS
X 51 42         DUBOS Thomas
Assistant Prof. Polytechnique
X 51 43

DUPRÉ Aurore
PhD Student, Polytechnique
X 51 93         GUION Antoine
PhD student, Sorbonne Universite
X 51 ??

PhD student, Polytechnique
X 51 ??         MAILLER Sylvain
Research Scientist, ENPC
X 51 91

MENUT Laurent
Research scientist, DR CNRS
X 51 75         NGUYEN QUANG Trung
PhD Student, Polytechnique
X 51 06

Research Engineer Polytechnique
Deputy coffee manager
X 52 33         POLCHER Jan
Research scientist, DR CNRS
X 51 46

X 51 42         TURQUETY Solène
Professor, Sorbonne University
X 51 33 / J 52 78

Assistant Physicist, Univ.P.M.Curie
X 51 39 / J 52 85