PEGASUS

The PEGASUS (Portable Gas and Aerosol Sampling Units) mobile field platform is a set of two mobile units for the sampling and analysis of aerosols and atmospheric gases. The development of PEGASUS took place between 2009 and 2012 (financial support from the Université Paris-Est Créteil, the Ile de France Region, the CNRS-INSU, and the Conseil Général du Val de Marne). This development was carried out by LISA, with strong technical support from the CNRS-INSU Technical Division (DT INSU), which took charge of the design and mechanical production of the sampling and instrument implementation interfaces.

PEGASUS consists of two air-conditioned, energy-independent, marine-type container modules (20 feet) that can be used independently of each other during ground and ocean field campaigns. The two modules are dedicated to observation (observatory module) and sample analysis (laboratory module). Its instrumentation allows the study of aerosols and atmospheric trace gases, and in particular their emission, formation and transformation processes, as well as their physico-chemical properties determining their effects on the radiation balance, biogeochemical cycles and atmospheric composition.