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This paper summarises the goals, the experimental setup and the phenomenological findings of three tracer field experiments carried out in the Ticino area of southern Switzerland in the years 1989, 1990 and 1991. The experiments were designed to study the transport and diffusion of trace gases over the very complex Alpine topography. The results and knowledge gained from each experiment were used for the design of the next experiment and to improve the logistics. These experiments contributed to the understanding of the flow and dispersion characteristics in very complex terrain. Specifically, under particular meteorological conditions, these experiments gave evidence of the occurrence of a transalpine exchange of air constituents, both in North-to-South and South-to-North directions.

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Authors: AMBROSETTI P, SMI, Locarno-Monti (CH);ANFOSSI D, CNR, Torino (IT);CIESLIK S ET AL., JRC Ispra (IT);LAMPRECHT R, PSI Villigen (CH);MARZORATI A, ENEL, Milano (IT);ZIMMERMAN H, Forschungszentrum Karlsruhe GmbH (DE)
Bibliographic Reference: Article: Atmospheric Environment (1995)
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