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Abstract
SIRTA is a French national atmospheric observatory dedicated to cloud and aerosol research. SIRTA is located 25 km south of the city of Paris (48.7N, 2.2E). The SIRTA observatory gathers an ensemble of state-of-the-art active and passive remote sensing instruments, including cloud and precipitation Doppler radars, cloud and aerosol backscatter and depolarization lidars, radiometers, and in-situ measurements. SIRTA provides access (1) to three platforms in an environment with routine monitoring based on a core ensemble of instruments: a radiation platform with 360-deg unobstructed view, a platform for active remote sensing instruments, and two 30-m masts located 1km apart to study local scale dynamics; (2) to long time series of data, and data analysis software.
SIRTA is ideally located to study both local/regional-scale processes typical to the urban-rural transition under high-pressure situations and larger-scale cloud processes associated with baroclinic fronts. It is predominantly exposed to westerly winds that advect clean maritime air, alternating regularly with north-easterly winds that advect more polluted continental air.
This poster will present the SIRTA infrastructure, the remote sensing instruments currently deployed, and the available database.