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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/angeo-2019-12
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-2019-12
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Regular paper 22 Feb 2019

Regular paper | 22 Feb 2019

Review status
This discussion paper is a preprint. A revision of the manuscript is under review for the journal Annales Geophysicae (ANGEO).

Measurements of Aerosols and Charged Particles On the BEXUS18 Stratospheric Balloon

Erika Brattich1, Encarnación Serrano Castillo2, Fabrizio Giulietti2, Jean-Baptiste Renard3, Sachi N. Tripathi4, Kunal Ghosh4, Gwenael Berthet3, Damien Vignelles3, and Laura Tositti5 Erika Brattich et al.
  • 1Department of Physics and Astronomy DIFA, University of Bologna, 40126 Bologna (BO), Italy
  • 2Industrial Engineering Department, University ofBologna, 47121 Forlì (FC), Italy
  • 3LP2CE-CNRS/Université d'Orléans, 45071 Orléans, France
  • 4Department of Civil Engineering & Department of Earth Sciences, Indian Institute of Technology, 208016, Kanpur, India
  • 5Department of Chemistry “G. Ciamician”, University of Bologna, 40126 Bologna (BO), Italy

Abstract. This paper describes the aerosol measurements setup and results obtained during the BEXUS18 stratospheric balloon within the A5-Unibo (Advanced Atmospheric Aerosol Acquisition and Analysis) experiment performed on October 10th, 2014 in northern Sweden (Kiruna). The experimental setup was designed and developed by the University of Bologna with the aim of collecting and analyzing vertical profiles of atmospheric ions and particles together with atmospheric parameters (temperature, relative humidity and pressure) all along the stratospheric ascent of the BEXUS18 stratospheric balloon. Particles size distributions were measured with the MeteoModem Light Optical Aerosol Counter (LOAC) and air ion density was measured with a set of two commercial and portable ion counters. Though the experimental setup was based upon relatively low-cost and light-weight sensors, vertical profiles of all the parameters up to an altitude of about 27 km were successfully collected. The results obtained are useful for elucidating the relationships between aerosols and charged particles between ground level and the stratosphere with great potential in collecting and adding useful information in this field, also in the stratosphere where such measurements are rare. In particular, the equipment detected coherent vertical profiles for particles and ions, with a particularly strong correlation between negative ions and fine particles, possibly resulting from proposed associations between cosmic rays and ions as previously suggested. In addition, the detection of charged aerosols in the stratosphere is in agreement with the results obtained by a previous flight and with simulations conducted with a stratospheric ion-aerosol model. However, further measurements under stratospheric balloon flights equipped with a similar setup are needed to reach general conclusions on such important issues.

Erika Brattich et al.
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Erika Brattich et al.
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Short summary
This paper describes the aerosol measurements setup and results obtained during the BEXUS18 stratospheric balloon within the A5-Unibo (Advanced Atmospheric Aerosol Acquisition and Analysis) experiment performed on October 10th, 2014 in northern Sweden (Kiruna). The experiment and the results here presented broaden the understanding of the processes linking the presence of charges with particles all over the vertical heights from ground to the stratosphere.
This paper describes the aerosol measurements setup and results obtained during the BEXUS18...
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