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Settling-driven gravitational instabilities associated with volcanic clouds: new insights from experimental investigations

  • Simona ScolloEmail author
  • Costanza Bonadonna
  • Irene Manzella
Research Article

Abstract

Downward propagating instabilities are often observed at the bottom of volcanic plumes and clouds. These instabilities generate fingers that enhance the sedimentation of fine ash. Despite their potential influence on tephra dispersal and deposition, their dynamics is not entirely understood, undermining the accuracy of volcanic ash transport and dispersal models. Here, we present new laboratory experiments that investigate the effects of particle size, composition and concentration on finger generation and dynamics. The experimental set-up consists of a Plexiglas tank equipped with a removable plastic sheet that separates two different layers. The lower layer is a solution of water and sugar, initially denser than the upper layer, which consists of water and particles. Particles in the experiments include glass beads as well as andesitic, rhyolitic and basaltic volcanic ash. During the experiments, we removed the horizontal plastic sheet separating the two fluids. Particles were illuminated with a laser and filmed with a HD camera; particle image velocimetry (PIV) is used to analyse finger dynamics. Results show that both the number and the downward advance speed of fingers increase with particle concentration in the upper layer, while finger speed increases with particle size but is independent of particle composition. An increase in particle concentration and turbulence is estimated to take place inside the fingers, which could promote aggregation in subaerial fallout events. Finally, finger number, finger speed and particle concentration were observed to decrease with time after the formation of fingers. A similar pattern could occur in volcanic clouds when the mass supply from the eruptive vent is reduced. Observed evolution of the experiments through time also indicates that there must be a threshold of fine ash concentration and mass eruption rate below which fingers do not form; this is also confirmed by field observations.

Keywords

Tephra Volcanic plumes Volcanic ash Laboratory experiments PIV analysis Particle aggregation 

Notes

Acknowledgments

The authors are grateful to M. Prestifilippo and E. Rossi for the useful discussions, to L. Pioli and J. Ruch for their help during the experiments at the Geneva laboratory and to F. Arlaud for technical support. The work was funded by the ESF Research Networking Programmes, Reference N°4257 MeMoVolc, by the project “From observations to experiments: Describing and characterizing gravitational instabilities of volcanic plumes”. The contribution of C. Bonadonna was supported by the Swiss National Science Foundation Project No 200021_156255. We thank James White (Executive Editor), Joe Dufek (Associate Editor), David Jessop and one anonymous reviewer for their constructive comments that greatly improved the manuscript.

References

  1. Adrian RJ (1991) Particle-imaging techniques for experimental fluid mechanics. Annu Rev Fluid Mech 23:261–304CrossRefGoogle Scholar
  2. Adrian RJ (1995) Limiting resolution of particle image velocimetry for turbulent flow. Advances in Turbulence Research Pohang Korea 1–19 PostechGoogle Scholar
  3. Adrian RJ (2005) 20 years of particle image velocimetry. Exp Fluids 39:159–169CrossRefGoogle Scholar
  4. Alexander D (2013) Volcanic ash in the atmosphere and risks for civil aviation: a study in European crisis management. Int J Disaster Risk Sci 4:9–19CrossRefGoogle Scholar
  5. Alfano F, Bonadonna C, Volentik ACM, Connor CB, Watt SFL, Pyle DM, Connor LJ (2011) Tephra stratigraphy and eruptive volume of the May, 2008, Chaiten eruption, Chile. Bull Volcanol 73(5):613–630CrossRefGoogle Scholar
  6. Alfano F, Bonadonna C, Gurioli L (2012) Insights into eruption dynamics from textural analysis: the case of the May, 2008, Chaitén eruption. Bull Volcanol. doi: 10.1007/s00445-012-0648-3 Google Scholar
  7. Alfano F, Bonadonna C, Watt S, Connor C, Volentik A, Pyle DM (2016) Reconstruction of total grain size distribution of the climactic phase of a long-lasting eruption: the example of the 2008–2013 Chaitén eruption. Bull Volcanol 78:46. doi: 10.1007/s00445-016-1040-5 CrossRefGoogle Scholar
  8. Andronico D, Scollo S, Lo Castro MD, Cristaldi A (2014) Representivity of incompletely sampled fall deposits in estimating eruption source parameters: a test using the 12–13 January 2011 lava fountain deposit from Mt. Etna volcano, Italy. Bull Volcanol (2014) 76:861. doi: 10.1007/s00445-014-0861-3 CrossRefGoogle Scholar
  9. Andronico D, Scollo S, Cristaldi A (2015) Unexpected hazards from tephra fallouts at Mt Etna: the 23 November 2013 lava fountain. Journal Volcanololgy Geothermal Research 204:118–125CrossRefGoogle Scholar
  10. Blong R (2000) Assessment of volcanic risk. In: Sigur H et al (eds) Encyclopedia of volcanoes. Academic Press, San Diego, pp 1215–1225Google Scholar
  11. Bonadonna C, Houghton BF (2005) Total grain-size distribution and volume of tephra-fall deposits. Bull Volcanol 67:441–456CrossRefGoogle Scholar
  12. Bonadonna C, Phillips JC (2003) Sedimentation from strong volcanic plumes. J Geophys Res 108(B7):2340. doi: 10.1029/2002JB002034 CrossRefGoogle Scholar
  13. Bonadonna C, Mayberry GC, Calder ES, Sparks RSJ, Choux C, Jackson P, Lejeune AM, Loughlin SC, Norton GE, Rose WI, Ryan G, Young SR (2002) Tephra fallout in the eruption of Soufrière Hills Volcano, Montserrat. In: Druitt TH, Kokelaar BP (eds) The eruption of Soufrière Hills Volcano, Montserrat, from 1995 to 1999. Geological Society, London, Memoir, v. 21, p. 483–516. doi: 10.1144/GSL.MEM.2002.021.01.22
  14. Bonadonna C, Phillips JC, Houghton BF (2005) Modeling tephra fall from a Ruapehu weak plume eruption. J Geophys Res 110(B08209). doi: 10.1029/2004JB003515
  15. Bonadonna C, Genco R, Gouhier M, Pistolesi M, Cioni R, Alfano F, Hoskuldsson A, Ripepe M (2011) Tephra sedimentation during the 2010 Eyjafjallajökull eruption (Iceland) from deposit, radar, and satellite observations. J Geophys Res 116:B12202. doi: 10.1029/2011JB008462 CrossRefGoogle Scholar
  16. Bonadonna C, Folch A, Loughlin S, Puempel H (2012) Future developments in modelling and monitoring of volcanic ash clouds: outcomes from the first IAVCEI-WMO workshop on Ash Dispersal Forecast and Civil Aviation. Bull Volcanol 74:1–10CrossRefGoogle Scholar
  17. Brown RJ, Bonadonna C, Durant AJ (2012) A review of volcanic ash aggregation. Phys Chem Earth A/B/C 45-46:65–78CrossRefGoogle Scholar
  18. Carazzo G, Jellinek AM (2012) A new view of the dynamics, stability and longevity of volcanic clouds. Earth Planet Sci Lett 325-326:39–51CrossRefGoogle Scholar
  19. Carazzo G, Jellinek AM (2013) Particle sedimentation and diffusive convection in volcanic ash-clouds. Journal Geophysical Research 118:1420–1437Google Scholar
  20. Cardoso SSS, Zarrebini M (2001) Convection driven by particle settling surrounding a turbulent plume. Chem Eng Sci 56:3365–3375CrossRefGoogle Scholar
  21. Carey SN (1997) Influence of convective sedimentation on the formation of widespread tephra fall layers in the deep sea. Geology 25:839–842CrossRefGoogle Scholar
  22. Carey SN, Sigursson H (1982) Influence of particle aggregation on deposition of distal tephra from the May 18, 1980, eruption of Mount St. Helens volcano. Journ Geophys Res 87: 7061–7072Google Scholar
  23. Chojnicki KN, Clarke AB, Adrian RJ, Phillips JC (2014) The flow structure of jets from transient sources and implications for modeling short-duration explosive volcanic eruptions. Geochem Geophys Geosyst 15:4831–4845CrossRefGoogle Scholar
  24. Chojnicki KN, Clarke AB, Phillips JC, Adrian RJ (2015a) Rise dynamics of unsteady laboratory jets with implications for volcanic plumes. Earth Planet Sci Lett 412:186–196CrossRefGoogle Scholar
  25. Chojnicki KN, Clarke AB, Phillips JC, Adrian RJ (2015b) The evolution of volcanic plume morphology in short-lived eruptions. Geology 43:707–710CrossRefGoogle Scholar
  26. Cimarelli C, Alatorre-Ibargüengoitia MA, Kuppers U, Scheu B, Dingwell DB (2013) Experimental generation of volcanic lightning. Geology. doi: 10.1130/G34802.1 Google Scholar
  27. Cioni R, Pistolesi M, Bertagnini A, Bonadonna C, Hoskuldsson A, Scateni B (2014) Insights into the dynamics and evolution of the 2010 Eyjafjallajökull summit eruption (Iceland) provided by volcanic ash textures. Earth Planet Sci Lett 394:111–123CrossRefGoogle Scholar
  28. Connor LJ, Connor CB (2006) Inversion is the key to dispersion: understanding eruption dynamics by inverting tephra fallout. In: Mader H, Coles SG, Connor CB, Connor LJ (eds) Statistics in volcanology. Geological Society, London, pp 231–242Google Scholar
  29. Connor CB, Powell L, Strauch W, Navarro M, Urbina O, Rose WI (1993) The 1992 eruption of Cerro Negro, Nicaragua: an example of Plinian-style activity at a small basaltic cinder cone. EOS Trans Am Geophys Union 74:640Google Scholar
  30. Costa A, Macedonio G, Folch A (2006) A three dimensional Eulerian model for transport and deposition of volcanic ashes. Earth Planet Sci Lett 241:634–647CrossRefGoogle Scholar
  31. Degruyter W, Bonadonna C (2013) Impact of wind on the condition for column collapse of volcanic plumes. 377: 218–226Google Scholar
  32. Durant (2015) Toward a realistic formulation of fine-ash lifetime in volcanic clouds. Geology 43:271–272CrossRefGoogle Scholar
  33. Durant AJ; Rose WI (2009) Hydrometeor-enhanced tephra sedimentation: constraints from the 18 May 1980 eruption of Mount St. Helens. Journal Geophysical Research 114: doi:  10.1029/2008JB005756
  34. Elissondo M, Baumann V, Bonadonna C, Pistolesi M, Cioni R, Bertagnini A, Biass S, Herrero JC, Gonzalez R (2016) Chronology and impact of the 2011 Cordón Caulle eruption. Chile Nat Hazards Earth Syst Sci 16:675–704CrossRefGoogle Scholar
  35. Eychenne J, Le Pennec JL (2012) Sigmoidal particle density distribution in a subplinian scoria fall deposit. Bull Volc 74:2243–2249CrossRefGoogle Scholar
  36. Folch (2012) A review of tephra transport and dispersal models: evolution, current status, and future perspectives. J Volcanol Geotherm Res 235-236:96–115CrossRefGoogle Scholar
  37. Folk RL, Ward WC (1957) Brazos River bar: a study in the significance of grain size parameters. J Sediment Petrol 27:3–26CrossRefGoogle Scholar
  38. Grant I (1997) Particle image velocimetry: a review. Proceeding of the Institution of mechanical engineers part C- Journal of Mechanical Engineering Science 211(1):55–76CrossRefGoogle Scholar
  39. Gudmundsson MT, Thordarson T, Hoskuldsson A, Larsen G, Bjornsson H, Prata FJ, Oddsson B, Magnusson E, Hognadottir T, Petersen GN, Hayward CL, Stevenson JA, Jonsdottir I (2012) Ash generation and distribution from the April–May 2010 eruption of Eyjafjallajokull, Iceland. Scientific Reports, 2: doi:  10.1038/srep00572
  40. Hoyal D, Bursik MI, Atkinson JF (1999) Settling-driven convection: a mechanism of sedimentation from stratified fluids. J Geophys Res 104(C4):7953–7966CrossRefGoogle Scholar
  41. Manzella I, Bonadonna C, Phillips JC, Monnard H (2015) The role of gravitational instabilities in deposition of volcanic ash. Geology 43:211–214CrossRefGoogle Scholar
  42. Miller TP, Casadevall TJ (2000) Volcanic ash hazards to aviation. Encyclopedia of volcanoes. Sigurdsson, H., Academic Press, San Diego, CAGoogle Scholar
  43. Oxford Economics (2010) The economic impacts of air travel restrictions due to volcanic ash report for airbus, available at: http://controverses.mines-paristech.fr/public/promo10/promo10_G11/data/documents/Volcanic-Update.pdf
  44. Raffel M, Willert C, Wereley S, Kompenhans J (2007) Particle image velocimetry: a practical guide. Springer, New YorkGoogle Scholar
  45. Ripepe M, Bonadonna C, Folch A, Delle Donne D, Lacanna G, Marchetti E, Hoskuldsson A, Hoeskuldsson A (2011) Ash-plume dynamics and eruption source parameters by infrasound and thermal imagery: the 2010 Eyjafjallajokull eruption. Earth Planet Sci Lett 366:112–121CrossRefGoogle Scholar
  46. Roggensack K, Hervig RL, McKnight SB, Williams SN (1997) Explosive basaltic volcanism from Cerro Negro volcano: influence of volatiles on eruptive style. Science 277:1639–1641CrossRefGoogle Scholar
  47. Saffaraval F, Solovitz SA, Ogden DE, Mastin LG (2012) Impact of reduced near-field entrainment of overpressured volcanic jets on plume development. J Geophys Res 117:B05209. doi: 10.1029/2011JB008862 CrossRefGoogle Scholar
  48. Sammons P, McGuire B, Edwards S (2010) Volcanic hazard from Iceland—analysis and implications of the Eyjafjallajokull eruption, UCL Institute for Risk and Disaster Reduction report, London, available at: https://www.ucl.ac.uk/rdr/documents/docs-publications-folder/icelandreport
  49. Schultz DM, Kanak KM, Straka JM, Trapp RJ, Gordon BA, Zrnic DS, Bryan GH, Durant AJ, Garrett TJ, Klein PM, Lilly DK (2006) The mysteries of mammatus clouds: observations and formation mechanisms. J Atmos Sci 63:2409–2435CrossRefGoogle Scholar
  50. Scollo S, Tarantola S, Bonadonna C, Coltelli M, Saltelli A (2008) Sensitivity analysis and uncertainty estimation for tephra dispersal models. Journal of Geophysical Research-Solid Earth 113:B06202. doi: 10.1029/2006JB004864 CrossRefGoogle Scholar
  51. Scollo S, Folch A, Coltelli M, Realmuto VJ (2010) Three-dimensional volcanic aerosol dispersal: a comparison between MISR data and numerical simulations. Journal of Geophysical Research-Atmospheres 115:doi:  10.1029/2009JD013162
  52. Telling J, Dufek J (2012) An experimental evaluation of ash aggregation in explosive volcanic eruptions. J Volcanol Geotherm Res 209:1–8CrossRefGoogle Scholar
  53. Tritton DJ (1988) Physical fluid dynamics. Oxford University Press, OxfordGoogle Scholar
  54. Turner JS (1979) Buoyancy effects in fluids. Cambridge University Press, CambridgeGoogle Scholar
  55. Wilson T, Stewart C, Bickerton H, Baxter P, Outes V, Villarosa G, Rovere E (2013) Impacts of the June 2011 Puyehue- Cordón Caulle volcanic complex eruption on urban infrastructure, agriculture and public health. GNS Science, New Zealand GNS Science Report 2012/20:88Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Simona Scollo
    • 1
    Email author
  • Costanza Bonadonna
    • 2
  • Irene Manzella
    • 2
  1. 1.Osservatorio Etneo, Sezione di CataniaIstituto Nazionale di Geofisica e VulcanologiaCataniaItaly
  2. 2.Département des sciences de la TerreUniversité de GenèveGenevaSwitzerland

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