EGU23-16028
https://doi.org/10.5194/egusphere-egu23-16028
EGU General Assembly 2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

High-altitude aerosol characterization and PMF analysis of PM1 at the Helmos Mt station during the CALISHTO campaign

Konstantinos Eleftheriadis1, Olga Zografou1, Maria Gini1, Prodromos Fetfatzis1, Konstantinos Granakis1, Evangelia Diapouli1, Manousos Ioannis Manousakas1,2, Romanos Foskinis3,4, Alexandros Papayannis3,5, and Athanasios Nenes4,5
Konstantinos Eleftheriadis et al.
  • 1N.C.S.R. Demokritos, Institute of Nuclear & Radiological Sciences and Technology, Energy & Safety, Athens, Greece (elefther@ipta.demokritos.gr)
  • 2Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, CH-5232, Villigen PSI, Switzerland
  • 3Laser Remote Sensing Unit, Physics Department, School of Applied Mathematics and Physical Sciences, National and Technical University of Athens, 15780 Zografou, Greece
  • 4Institute for Chemical Engineering Sciences, Foundation for Research and Technology, Patras, Greece
  • 5Laboratory of Atmospheric Processes and their Impacts (LAPI), Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland

This study presents part of the results of the CALISHTO campaign (Cloud-AerosoL InteractionS in the Helmos Background TropOsphere) that took place in autumn 2021 at the free-troposphere high-altitude Helmos station (2314 m a.s.l.). A Time-of-Flight Aerosol Chemical Speciation Monitor (ToF-ACSM, Aerodyne) was deployed among other instruments (AE31, PVM-100, SMPS, EC/OC analyzer) in the framework of the campaign. The chemical characterization of the non-refractory PM1 (NR-PM1), the influence from the Boundary Layer / Free Troposphere, the origin of the incoming masses and the influence of clouds were studied. The sources of PM1 including the non-refractory species of ACSM (organics and inorganics) combined with the equivalent black carbon were also investigated by applying the PMF model to the combined dataset. The results showed that there is a great variability of aerosol characteristics depending on the height of the PBL and the origin of the air masses. During September the station was exposed to PBL emissions, and thus displayed much higher mass concentrations of NR-PM1 than October and November. Concerning the sources of PM1, different types were identified with ammonium sulphate and oxygenated organics being predominant, as expected for aged aerosol with the degree of ageing investigated against air mass origin and microphysical parameters.  

How to cite: Eleftheriadis, K., Zografou, O., Gini, M., Fetfatzis, P., Granakis, K., Diapouli, E., Manousakas, M. I., Foskinis, R., Papayannis, A., and Nenes, A.: High-altitude aerosol characterization and PMF analysis of PM1 at the Helmos Mt station during the CALISHTO campaign, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-16028, https://doi.org/10.5194/egusphere-egu23-16028, 2023.