Journal cover Journal topic
Annales Geophysicae An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 1.585 IF 1.585
  • IF 5-year value: 1.698 IF 5-year
    1.698
  • CiteScore value: 1.62 CiteScore
    1.62
  • SNIP value: 0.820 SNIP 0.820
  • IPP value: 1.52 IPP 1.52
  • SJR value: 0.781 SJR 0.781
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 83 Scimago H
    index 83
  • h5-index value: 24 h5-index 24
Discussion papers
https://doi.org/10.5194/angeo-2019-138
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-2019-138
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: regular paper 07 Nov 2019

Submitted as: regular paper | 07 Nov 2019

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

Statistical analysis of the long-range transport of the 2015 Calbuco volcanic eruption from ground-based and space-borne observations

Nelson Bègue1, Lerato Shikwambana2,3, Hassan Bencherif1,3, Juan Pallota4, Venkataraman Sivakumar3, Elian Wolfram4, Nkanyiso Mbatha5, Facundo Orte4, David Jean Du Preez6, Marion Ranaivombola1, Stuart Piketh7, and Paola Formenti8 Nelson Bègue et al.
  • 1Laboratoire de l'Atmosphère et des Cyclones, UMR 8105 CNRS, Université de la Réunion, Reunion Island, France
  • 2Space science Division, South African National Space Agency, Hermanus 7200, South Africa
  • 3School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
  • 4Centro de Investigaciones en Láseres y Aplicaciones, UNIDEF (CITEDEF-CONICET), 5 Villa Martelli, B1603ALO, Buenos Aires, Argentina
  • 5University of Zululand, Department of Geography, KwaDlangezwa, 3886, South Africa
  • 6Department Geography, Geoinformatics and Meteorology, University of Pretoria, Pretoria, 0002, South Africa
  • 7North-West University, Potchefstroom, South Africa
  • 8Laboratoire Interuniversitaire des Systèmes Atmosphériques, UMR CNRS 7583, Université Paris-Est-Créteil, Université de Paris, Institut Pierre Simon Laplace, Créteil, France

Abstract. This study investigates the influence of the 2015 Calbuco eruption (41.2° S, 72.4° W; Chile) on the total columnar aerosol optical properties over the Southern Hemisphere. The well-known technic of sunphotometry was applied for investigation of the transport and the spatio-temporal evolution of the optical properties of the volcanic plume. The CIMEL sunphotometer measurements performed at 6 South American and 3 African sites were statistically analyzed. This study involves the use of the satellite observations and a back-trajectory model. The passage of the Calbuco plume is statistically detectable on the aerosol optical depth (AOD) observations obtained from sunphotometers and MODIS. This statistical detection confirms that the majority of the plume was transported over the northeastern parts of South America and reached the South African region one week following the eruption. The plume has impacted to a lesser extent the southern parts of South America. The highest AOD anomalies were observed over the northeastern parts of the South America. Over the South African sites, the AOD anomalies induced by the spread of the plume were quite homogeneously distributed between the east and west coast. The optical characteristics of the plume near source region was consistent with a bearing-ash plume. Conversely, the remote sites to the Calbuco volcano were influenced by ash-free plume. The optical properties discuss on this paper will be used as inputs for numerical models for further investigation on the ageing of the Calbuco plume in a forthcoming study.

Nelson Bègue et al.
Interactive discussion
Status: open (until 20 Dec 2019)
Status: open (until 20 Dec 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
Nelson Bègue et al.
Nelson Bègue et al.
Viewed  
Total article views: 69 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
55 12 2 69 1 0
  • HTML: 55
  • PDF: 12
  • XML: 2
  • Total: 69
  • BibTeX: 1
  • EndNote: 0
Views and downloads (calculated since 07 Nov 2019)
Cumulative views and downloads (calculated since 07 Nov 2019)
Viewed (geographical distribution)  
Total article views: 18 (including HTML, PDF, and XML) Thereof 18 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: 14 Nov 2019
Publications Copernicus
Download
Short summary
This study treats on the influence of the 2015 Calbuco eruption (41.2° S, 72.4° W; Chile) on the total columnar aerosols optical properties over the Southern Hemisphere. The well-known technic of sunphotometry was applied for investigation of the transport and the spatio-temporal evolution of the optical properties of the volcanic plume. The CIMEL sunphotometer measurements performed over 6 South American and 3 African sites were statistically analyzed.
This study treats on the influence of the 2015 Calbuco eruption (41.2° S, 72.4° W; Chile) on...
Citation