Join us Find all our offers here. Master Internship LMD/SIRTA, Ecole Polytechnique – How accurately can we optically and geometrically characterise natural cirrus clouds and those associated with aircraft traffic? Institut Pierre-Simon Laplace/Centre de Modélisation du Climat – Estimating the sampling capabilities of commercial aircraft to detect ice-supersaturated regions for contrail mitigation Institut Pierre-Simon Laplace/Centre de Modélisation du Climat – The role of turbulence in ice cloud formation