News Items:

• Just published in Tellus A: "Potential of an Ensemble Kalman Smoother for Stratospheric Chemical-Dynamical Data Assimilation " Milewski and Bourqui (February 2013 link)

• Just published in ACP: "A simple framework for modelling the photochemical response to solar spectral irradiance variability in the stratosphere" Muncaster et al. (August 2012 link).

• Just published in Solar Physics: "A fast model for the reconstruction of spectral solar irradiance in the near- and mid-ultraviolet" Bolduc et al. (June 2012 link).

• Just published in Physical Review E: "Fast chemical reaction in two-dimensional Navier-Stokes flow: Initial regime" Ait Chaalal, Bourqui and Bartello (April 2012 link).

• Just published in ACP: "A new real-time Lagrangian diagnostic system for stratosphere-troposphere exchange: Evaluation during a balloon sonde campaign in eastern Canada" Bourqui, Yamamoto et al. (Mar 2012 link).

• Just published in MWR: "Assimilation of stratospheric temperature and ozone with an Ensemble Kalman Filter in a Chemistry-Climate Model" Milewski and Bourqui (Nov. 2011, link)

• Just published in J. Climate: "Sensitivity of the Stratospheric Circulation to the Latitude of Thermal Surface Forcing" Winter and Bourqui (Oct. 2011, link).

• We are currently participating in the BORTAS measurement campaign from July 12 to August 4. Follow this link to see our forecasts of smoke from the current boreal forest fires in North America. (July 2011)

Archive of News Items

About this Website
Welcome to the Stratospheric Dynamics and Chemistry Group Website !

Our research interests focus on the coupling between chemistry and climate in the atmosphere and on the basic processes driving this interaction. Our emphasis is placed on the stratosphere because the interaction between climate and chemistry is especially important in this region, and the possible future changes in the ozone layer resulting from emissions by human activities (in particular greenhouse gases) are currently not known. The current need for a predictive capability on the changing atmospheric chemical composition and climate is a major motivation for this research. Key scientific questions are addressed within several projects with an approach based upon state-of-the-art numerical models, tools and data sets. Our projects include studies on the coupled dynamical-chemical processes at the tropopause, using high resolution as well as global atmospheric models. They also include the development of fast chemistry schemes using novel numerical methods. These schemes will then be used to explore the future evolution of the stratospheric ozone layer using the ensemble simulation approach. These research activities are scientifically challenging and evolve on the bridge between atmospheric dynamics and chemistry. Have fun visiting our web site and don't forget to download our poster!
















 

Last update: February 7, 2013