Welcome back PEGASUS !
After a long journey to Namibia, the PEGASUS mobile platform has finally returned to Créteil.
PEGASUS was at the heart of the two observation campaigns carried out on the coast and in the Namib desert in May and September 2024 as part of the AEROFOG project. Thanks to the mobilization of LISA researchers and engineers, PEGASUS recorded valuable and unique data on the physico-chemical and optical properties of the region's characteristic natural and anthropogenic aerosols, enabling us to understand the formation, lifespan and chemical composition of fog, the essential element for the survival of ecosystems in Namibia's hyperarid environments.
More info : AEROFOG project, coordinated by LISA and contributed by laboratories LCE, KIT and TROPOS, is funded by ANR-DFG. (https://anr.fr/Project-ANR-22-CE92-0051)
Mediation on desert aerosols: LISA is in the box
The “C'est dans la boîte!” (It's in the box!) project answers questions asked by visitors to the Exploradôme, a museum of scientific culture in Vitry-sur-Seine, in partnership with the CNRS. LISA researcher Karine Desboeufs took part in the game, answering the question “How is the advancing desert impacting the oceans? In this video, she explains the effects of the desert on phytoplankton.
The desert aerosol cycle is one of LISA's major research themes. These aerosols account for over 40% of annual tropospheric aerosol emissions and are therefore a major player in the Earth's climate.
More infos
Theme Cycle de l’aérosol désertique
Videos « C’est dans la boite »
Exploradôme website
Seminar by Chiara Giorio, Université Paris Cité visiting professor at LISA
In November 2024, Chiara Giorio, Professor of Chemistry at Cambridge University, visited LISA as a guest of Université Paris Cité. A long-standing collaborator, she took advantage of her stay to exchange ideas with LISA researchers and students. Here is the announcement of the seminar she held on November 15, 2024.
All about single particle mass spectrometry
From April 24 to 25, 2025, Xiaoli Shen, a researcher at Purdue University in the USA, and an expert in mass spectrometry, visited LISA's MEREIA team.
She presented a seminar entitled “Airborne Measurements of Biomass Burning Particles by Using the PALMS-NG Instrument” to a packed audience of students and researchers. Many questions followed the inspiring presentation for our future projects. Many thanks to her!
Seminar on Oxidizing Potential by Thomas Audoux
The next MEREIA seminar will take place on Friday April 18 between 10:00 and 11:00, and will be presented by Thomas Audoux, post-doc at IMT Nord Europe/INRS (and previously a PhD student at LISA in the MODELISATION team).
As part of the next Pollurisk campaign (ending April 18), Thomas will be testing a device he has developed to characterize the Oxidizing Potential of aerosols. The title of his presentation is “Le Potentiel Oxydant: de la caractérisation en laboratoire à la mesure en ligne”.
This seminar will take place in the meeting room on the 4th floor of the IEM, with a zoom connection for those unable to attend in person.