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Microphysical Process Characterization of Mixed Phase Clouds in the European Arctic (IMACPI)
Coordinator : Céline Planche
Lab partners: LaMP
Funding: IUF (2023-2028)
An innovative 3D cloud-scale model using a bin resolved microphysics representation will be developed to better understand the complex aerosol-cloud-precipitation interactions at fine resolution. Depending on their origin, the physicochemical properties of aerosols are highly variable. The project’s main objective is to study the role of these aerosol properties (concentration and chemical composition) on the development and evolution of convective clouds (and the associated intense precipitation) observed in contrasted environments using the newly-developed 3D model.
Liens : IUF webpage
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Aerosol Cloud interactions in contrasted Marine Environments (ACME)
Coordinator: Céline Planche
Lab partners: LaMP
Funding: ANR JCJC (2022-2026)
The main objectives of ACME are to improve the understanding of the mechanisms of ice formation, the interaction between ice crystals and droplets as well as the role of the aerosol particles in the development and the evolution of clouds in contrasted marine environments (e.g. with different aerosol loadings and thermodynamical properties).
To reach these objectives, ACME will exploit the measurements from different marine environments: over the Mediterranean Sea during the EXAEDRE campaign (autumn 2018, Corsica), over the North Atlantic Ocean during the HAIC campaign (May 2015, French Guiana), and over the South Pacific Ocean during the Sea2Cloud campaign (March 2020, New-Zealand), in order to better constrain the representation of, e.g., the secondary ice nucleation mechanisms in bin cloud-scale modelling (i.e. with the DEtailed SCAvenging Model (DESCAM) using sub-kilometre resolution), providing then a unique tool for aerosol-cloud interaction studies.
ACME will improve our knowledge of ice formation, the interaction between ice crystals and droplets, and the role of aerosol particles in cloud development and evolution, in contrasted marine environments. ACME will also reveal the dominant ice formation mechanism in different types of clouds, and improve the phase partitioning of the mixed-phase clouds. ACME will furthermore contribute to the development of new parameterisations on ice formation processes under different atmospheric thermodynamical conditions for larger scale models.
Link: ACME ANR webpage & ACME UCA webpage
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Microphysical Process Characterization of Mixed Phase Clouds in the European Arctic ((MPC)²)
Coordinators : Olivier Jourdan & J.-C. Raut
Lab partners: LaMP, LATMOS, LOA,
Funding: ANR PRC (2023-2026)
Within the (MPC)² project, we will investigate the physical processes involved in the life cycle of mixed phase clouds (MPC) in the Arctic by analysing high quality cloud data from airborne and spaceborne measurements combined with multi-scale modeling. It particularly focuses on the influence of large scale conditions (e.g. meteorological and surface conditions, air mass origins) on cloud microphysics and their impact on the radiative budget. We will also study the impact of the small-scale variability of thermodynamical properties and aerosols on ice nucleation mecanisms and liquid/ice partitioning in those clouds, with the goal of improving the representation of Arctic clouds and aerosol-cloud interactions in models.
Liens : ANR webpage
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Impact of the marine primary and secondary emissions on cloud precipitation capabilities (Sea2Cloud)
Coordinator: Karine Sellegri
Lab partners: LaMP
Funding: ERC CoG (2017-2024)
The main goal of the project Sea2Cloud is to investigate how marine emissions from living microorganisms can influence CCN, IN and ultimately cloud properties. We will investigate the whole process chain of gas-phase emissions, nucleation and growth through the atmospheric column, and impact on the CCN population above oceans. We will also quantify marine primary aerosol emissions, including particles of biological origin, and evaluate how they impact IN and cloud precipitation capabilities. Experiments will be performed in the Southern Hemisphere, especially sensitive to the natural marine aerosol concentration variability.
Link: Sea2Cloud webpage
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