Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 5.509 IF 5.509
  • IF 5-year value: 5.689 IF 5-year
    5.689
  • CiteScore value: 5.44 CiteScore
    5.44
  • SNIP value: 1.519 SNIP 1.519
  • SJR value: 3.032 SJR 3.032
  • IPP value: 5.37 IPP 5.37
  • h5-index value: 86 h5-index 86
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 161 Scimago H
    index 161
Discussion papers
https://doi.org/10.5194/acp-2019-12
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-2019-12
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 04 Mar 2019

Research article | 04 Mar 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Atmospheric Chemistry and Physics (ACP).

Long-term aerosol optical hygroscopicity study at the ACTRIS SIRTA observatory: synergy between ceilometer and in-situ measurements

Andrés Esteban Bedoya-Velásquez1,2,3, Gloria Titos1,2,4, Juan Antonio Bravo-Aranda1,2, Martial Haeffelin5, Olivier Favez6, Jean-Eudes Petit7, Juan Andrés Casquero-Vera1,2, Francisco José Olmo-Reyes1,2, Elena Montilla-Rosero8, Carlos D. Hoyos9, Lucas Alados-Arboledas1,2, and Juan Luis Guerrero-Rascado1,2 Andrés Esteban Bedoya-Velásquez et al.
  • 1Andalusian Institute for Earth System Research (IISTA-CEAMA), University of Granada, Autonomous Government of Andalusia. Granada, Spain
  • 2Departament of Applied Physics, University of Granada. Granada, Spain
  • 3Sciences Faculty, Department of Physics, Universidad Nacional de Colombia. Medellín, Colombia
  • 4Institute of Environmental Assessment and Water Research (IDAEA), CSIC, Barcelona, Spain
  • 5Institut Pierre Simon Laplace, École Polytechnique, CNRS, Université Paris-Saclay, Palaiseau, France
  • 6Institut National de l’Environnement Industriel et des Risques, France
  • 7Laboratoire du Climat et des Sciences de l’Environnement (LSCE), France
  • 8Physical Sciences Department, School of Science, EAFIT University, Medellín, Colombia
  • 9Facultad de Minas, Departamento de Geociencias y Medio Ambiente, Universidad Nacional de Colombia. Medellín, Colombia

Abstract. An experimental setup to study aerosol hygroscopicity is proposed based on the time evolution of attenuated backscatter coefficients from a ceilometer co-located to an instrumented-tower equipped with meteorological sensors at different heights. This setup is used to analyse a 4.5-year database at the ACTRIS SIRTA observatory in Palaiseau (Paris, France, 2.208º E, 48.713º N, 160 m above sea level). A strict criterion has been established to identify hygroscopic growth cases using ancillary information such as on-line chemical composition, resulting in eight hygroscopic growth cases from a total of 120 potential cases. For the eight cases, the hygroscopic growth-related properties such as the attenuated backscatter enhancement factor fβ (RH) and the hygroscopic growth coefficient γ are evaluated. This study evidence that the hygroscopicity parameter γ increases as the contribution of organic aerosols decreases. In this sense, organic mass fraction is anti-correlated with γ while it shows a positive correlation with the inorganic mass fraction. Among inorganic species, the higher correlation was found for NO3. This is the first time that hygroscopic enhancement factors retrieved directly for ambient aerosols using remote sensing techniques are combined with on-line chemical composition in-situ measurements to evaluate the role of the different aerosol species on aerosol hygroscopicity.

Andrés Esteban Bedoya-Velásquez et al.
Interactive discussion
Status: open (until 29 Apr 2019)
Status: open (until 29 Apr 2019)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement
Andrés Esteban Bedoya-Velásquez et al.
Andrés Esteban Bedoya-Velásquez et al.
Viewed  
Total article views: 190 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
140 48 2 190 10 1 0
  • HTML: 140
  • PDF: 48
  • XML: 2
  • Total: 190
  • Supplement: 10
  • BibTeX: 1
  • EndNote: 0
Views and downloads (calculated since 04 Mar 2019)
Cumulative views and downloads (calculated since 04 Mar 2019)
Viewed (geographical distribution)  
Total article views: 130 (including HTML, PDF, and XML) Thereof 130 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 23 Mar 2019
Publications Copernicus
Download
Short summary
This study is related to the first time hygroscopic enhancement factors retrieved directly for ambient aerosols using remote sensing techniques are combined with on-line chemical composition in-situ measurements to evaluate the role of the different aerosol species on aerosol hygroscopicity at ACTRIS SIRTA observatory. The results showed 8 cases that fulfilled strict criteria over 107 cases identified in this study.
This study is related to the first time hygroscopic enhancement factors retrieved directly for...
Citation