Near-source observations of aerosol size distributions in the eruptive plumes from Eyjafjallajökull volcano, March-April 2010
Near-source observations of aerosol size distributions (<15 km from the vent) were made during three eruptive phases of Eyjafjallajökull in 2010: Phase I - basaltic lava fountaining; Phase II - andesitic phreatomagmatic explosions (mass discharge rate of the order of 105 kg s-1); Phase III - ande...
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ftucambridgeesc:oai:eprints.esc.cam.ac.uk:2124 2023-05-15T16:09:31+02:00 Near-source observations of aerosol size distributions in the eruptive plumes from Eyjafjallajökull volcano, March-April 2010 Ilyinskaya, E. Tsanev, V.I. Martin, R. S. Oppenheimer, C. Le Blond, J. Sawyer, G.M. Gudmundsson, M.T. 2011-06 application/pdf http://eprints.esc.cam.ac.uk/2124/ http://eprints.esc.cam.ac.uk/2124/1/Ilyinskayaetal2011_AE.pdf http://www.sciencedirect.com/science/article/pii/S1352231011002524 https://doi.org/10.1016/j.atmosenv.2011.03.017 en eng http://eprints.esc.cam.ac.uk/2124/1/Ilyinskayaetal2011_AE.pdf Ilyinskaya, E. and Tsanev, V.I. and Martin, R. S. and Oppenheimer, C. and Le Blond, J. and Sawyer, G.M. and Gudmundsson, M.T. (2011) Near-source observations of aerosol size distributions in the eruptive plumes from Eyjafjallajökull volcano, March-April 2010. Atmospheric Environment, 45 (18). pp. 3210-3216. DOI https://doi.org/10.1016/j.atmosenv.2011.03.017 <https://doi.org/10.1016/j.atmosenv.2011.03.017> 05 - Petrology - Igneous Metamorphic and Volcanic Studies Article PeerReviewed 2011 ftucambridgeesc https://doi.org/10.1016/j.atmosenv.2011.03.017 2020-08-27T18:09:08Z Near-source observations of aerosol size distributions (<15 km from the vent) were made during three eruptive phases of Eyjafjallajökull in 2010: Phase I - basaltic lava fountaining; Phase II - andesitic phreatomagmatic explosions (mass discharge rate of the order of 105 kg s-1); Phase III - andesitic magmatic explosions (mass discharge rate of the order of 103 kg s-1). Two methods were used, photometric measurements of suspended aerosol mass (with size distributions retrieved by inverse modelling); and sampling of ash fallout during Phases II and III (with size distributions measured by laser diffraction). The suspended aerosol in Phase I plume was dominated by particles sized <0.4 [mu]m in diameter. During Phase II, the suspended aerosol mass contained a high number of fine (<1 [mu]m) particles (an internal mixture of soluble aerosol and very fine ash) and coarse (>1 [mu]m) ash particles. The number ratio of fine and coarse particles fluctuated strongly within short intervals of time, indicative of changes in the fragmentation energy. The near-source ash fallout was poorly sorted (interquartile range 16-80 [mu]m); ash grains sized <1 [mu]m contributed up to 7% of total volume. The high water content and electrical charge in the plume are believed to have enhanced the deposition through particle aggregation. In Phase III the eruption became drier and less explosive. The suspended aerosol mass was strongly bimodal with high particle abundances at ~0.2 and 1-4 [mu]m. The ash fallout was better sorted (interquartile range 60-120 [mu]m; no grains <1 [mu]m), attributed to limited particle aggregation. Article in Journal/Newspaper Eyjafjallajökull University of Cambridge, Department of Earth Sciences: ESC Publications Atmospheric Environment 45 18 3210 3216 |
institution |
Open Polar |
collection |
University of Cambridge, Department of Earth Sciences: ESC Publications |
op_collection_id |
ftucambridgeesc |
language |
English |
topic |
05 - Petrology - Igneous Metamorphic and Volcanic Studies |
spellingShingle |
05 - Petrology - Igneous Metamorphic and Volcanic Studies Ilyinskaya, E. Tsanev, V.I. Martin, R. S. Oppenheimer, C. Le Blond, J. Sawyer, G.M. Gudmundsson, M.T. Near-source observations of aerosol size distributions in the eruptive plumes from Eyjafjallajökull volcano, March-April 2010 |
topic_facet |
05 - Petrology - Igneous Metamorphic and Volcanic Studies |
description |
Near-source observations of aerosol size distributions (<15 km from the vent) were made during three eruptive phases of Eyjafjallajökull in 2010: Phase I - basaltic lava fountaining; Phase II - andesitic phreatomagmatic explosions (mass discharge rate of the order of 105 kg s-1); Phase III - andesitic magmatic explosions (mass discharge rate of the order of 103 kg s-1). Two methods were used, photometric measurements of suspended aerosol mass (with size distributions retrieved by inverse modelling); and sampling of ash fallout during Phases II and III (with size distributions measured by laser diffraction). The suspended aerosol in Phase I plume was dominated by particles sized <0.4 [mu]m in diameter. During Phase II, the suspended aerosol mass contained a high number of fine (<1 [mu]m) particles (an internal mixture of soluble aerosol and very fine ash) and coarse (>1 [mu]m) ash particles. The number ratio of fine and coarse particles fluctuated strongly within short intervals of time, indicative of changes in the fragmentation energy. The near-source ash fallout was poorly sorted (interquartile range 16-80 [mu]m); ash grains sized <1 [mu]m contributed up to 7% of total volume. The high water content and electrical charge in the plume are believed to have enhanced the deposition through particle aggregation. In Phase III the eruption became drier and less explosive. The suspended aerosol mass was strongly bimodal with high particle abundances at ~0.2 and 1-4 [mu]m. The ash fallout was better sorted (interquartile range 60-120 [mu]m; no grains <1 [mu]m), attributed to limited particle aggregation. |
format |
Article in Journal/Newspaper |
author |
Ilyinskaya, E. Tsanev, V.I. Martin, R. S. Oppenheimer, C. Le Blond, J. Sawyer, G.M. Gudmundsson, M.T. |
author_facet |
Ilyinskaya, E. Tsanev, V.I. Martin, R. S. Oppenheimer, C. Le Blond, J. Sawyer, G.M. Gudmundsson, M.T. |
author_sort |
Ilyinskaya, E. |
title |
Near-source observations of aerosol size distributions in the eruptive plumes from Eyjafjallajökull volcano, March-April 2010 |
title_short |
Near-source observations of aerosol size distributions in the eruptive plumes from Eyjafjallajökull volcano, March-April 2010 |
title_full |
Near-source observations of aerosol size distributions in the eruptive plumes from Eyjafjallajökull volcano, March-April 2010 |
title_fullStr |
Near-source observations of aerosol size distributions in the eruptive plumes from Eyjafjallajökull volcano, March-April 2010 |
title_full_unstemmed |
Near-source observations of aerosol size distributions in the eruptive plumes from Eyjafjallajökull volcano, March-April 2010 |
title_sort |
near-source observations of aerosol size distributions in the eruptive plumes from eyjafjallajökull volcano, march-april 2010 |
publishDate |
2011 |
url |
http://eprints.esc.cam.ac.uk/2124/ http://eprints.esc.cam.ac.uk/2124/1/Ilyinskayaetal2011_AE.pdf http://www.sciencedirect.com/science/article/pii/S1352231011002524 https://doi.org/10.1016/j.atmosenv.2011.03.017 |
genre |
Eyjafjallajökull |
genre_facet |
Eyjafjallajökull |
op_relation |
http://eprints.esc.cam.ac.uk/2124/1/Ilyinskayaetal2011_AE.pdf Ilyinskaya, E. and Tsanev, V.I. and Martin, R. S. and Oppenheimer, C. and Le Blond, J. and Sawyer, G.M. and Gudmundsson, M.T. (2011) Near-source observations of aerosol size distributions in the eruptive plumes from Eyjafjallajökull volcano, March-April 2010. Atmospheric Environment, 45 (18). pp. 3210-3216. DOI https://doi.org/10.1016/j.atmosenv.2011.03.017 <https://doi.org/10.1016/j.atmosenv.2011.03.017> |
op_doi |
https://doi.org/10.1016/j.atmosenv.2011.03.017 |
container_title |
Atmospheric Environment |
container_volume |
45 |
container_issue |
18 |
container_start_page |
3210 |
op_container_end_page |
3216 |
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1766405388194807808 |