The jungfraujoch: a field laboratory to investigate the free troposphere

摘要

The free troposphere (FT) is a reservoir for primary and secondary polluatants which are transported there by dynamic mixing.Aerosol measurements in the FT are a convenient means for a quantificaiton of the involved effects.Mountain stations are suitable for htis purpose,since they allow the acquistion of long-term aerosol data,which are not available ,for example,by measurements form aircraft platforms.Since July 1995,a number of aerosol parameters have been measured at the Jungfraujoch (JFJ) high-alpine research station (3454m),Switzerland (Nyeki et al., 1998a).