Atmospheric Dynamics and thermodynamics at convective scale and mesoscale, scale interactions, quantification of mass, moment, heat, and water of observed systems (squall lines...) at these scales. Microphysical characterization of systems and dynamic-microphysical interactions. Role of the ice phase. Processes implied in the life cycle of the deep convection (initiation in clear air, development, decay) thanks to clear air capabilities. Quantitative estimate of rain. Sensitivity tests using a radar simulator and meso-NH runs, and validation of satellite rain estimation methods. Validation/initialization of model by radar data (wind and hydrometeor type). RONSARD is a radar rather important and relatively costly to set up, but it allows obtaining a good resolution on the structure of rain and wind fields. It is moreover not much attenuated (C band). It also works in clear air within the boundary layer, providing Cn2 and wind fields.
Strategie d'observation
Documentation of the internal structure of systems convective systems by volumetric scans and vertical scans in coordination with the X-Port radar and dense pluviographs networks on the Donga basin.
Dataset as provided by the Principal Investigator