University of Cambridge > Talks.cam > Centre for Atmospheric Science seminars, Chemistry Dept. > Ground-based and aircraft LIF systems using thermal dissociation techniques: instrument description and field campaigns results

Ground-based and aircraft LIF systems using thermal dissociation techniques: instrument description and field campaigns results

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At the Centre of Excellence CETEMPS of the University of L’Aquila (Italy) we developed a Laser Induced Fluorescence (LIF) for direct measurements of NO2 and measurements of Peroxy Nitrates, Alkyl Nitrates and HNO3 , after thermal dissociation into NO2 . The LIF system, unique in Europe at the moment, was deployed in the Borneo forest during the OP3 campaign (2007) and installed on the BAE -146 aircraft of the FAAM . In summer 2010 the LIF was used to make observations on board the BAE -146 for the RONOCO campaign. In this seminar will be illustrated the LIF technique, the development of the instrument and some tests. Results of recent ground-based and aircraft campaigns will be shown, together with future possible applications of the LIF technique for the observation of other species and possible contribution to answer some of the open questions on the atmospheric chemistry and atmospheric compositions changes.

This talk is part of the Centre for Atmospheric Science seminars, Chemistry Dept. series.

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