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A Review of More than 20 Years of Aerosol Observation at the High Altitude Research Station Jungfraujoch, Switzerland (3580 m asl)

Category: Aerosol and Trace Gas Climatology

Volume: 16 | Issue: 3 | Pages: 764-788
DOI: 10.4209/aaqr.2015.05.0305
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Nicolas Bukowiecki 1, Ernest Weingartner1, Martin Gysel1, Martine Collaud Coen2, Paul Zieger1, Erik Herrmann1, Martin Steinbacher4, Heinz W. Gäggeler3, Urs Baltensperger1

  • 1 Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
  • 2 Federal Office of Meteorology and Climatology, MeteoSwiss, Chemin de l’aérologie, CH-1530 Payerne, Switzerland
  • 3 Laboratory of Radiochemistry and Environmental Chemistry, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
  • 4 Laboratory for Air Pollution/Environmental Technology, Swiss Federal Laboratories for Materials Science and Technology (Empa), CH-8600 Dübendorf, Switzerland

Highlights

More than 20 years of continuous aerosol data are available from Jungfraujoch, Switzerland.
Both free tropospheric conditions and influences from planetary boundary layer are observed.
The aerosol size distribution and chemical composition are fairly constant in time.
Many climate relevant aerosol properties can be derived from these key properties.


Abstract

Among the worldwide existing long-term aerosol monitoring sites, the Jungfraujoch (JFJ) belongs to the category where both free tropospheric (FT) conditions and influence from planetary boundary layer (PBL) injections can be observed. Thus, it is possible to characterize free tropospheric aerosol as well as the effects of vertical transport of more polluted air from the PBL. This paper summarizes the current knowledge of the key properties for the JFJ aerosol, gained from the large number of in-situ studies from more than 20 years of aerosol measurements at the site. This includes physical, chemical and optical aerosol properties as well as aerosol-cloud interactions and cloud characteristics. It is illustrated that the aerosol size distribution and the aerosol chemical composition are fairly constant in time due to the long distance from aerosol sources, and that many climate relevant aerosol properties can be derived due to this behavior.

Keywords

Mountain site Aerosol physical properties Aerosol optical properties Aerosol chemical properties Aerosol-cloud interactions


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