Velocities in the plume of the 2010 Eyjafjallajökull eruption
The eruption of the Icelandic volcano Eyjafjallajökull in the spring of 2010 lasted for 39 days with an explosive phase (14–18 April), an effusive phase (18 April–4 May) and a phase with renewed explosive activity (5–17 May). Images every 5 seconds from a camera mounted 34 km from the volcano are av...
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Online Access: | https://doi.org/10.1002/jgrd.50876 |
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ftzenodo:oai:zenodo.org:10143 2024-09-15T18:05:22+00:00 Velocities in the plume of the 2010 Eyjafjallajökull eruption Bjornsson, Halldor Magnusson, Sindri Arason, Pordur Petersen, Guðrún Nína 2013-10-22 https://doi.org/10.1002/jgrd.50876 unknown Zenodo https://zenodo.org/communities/eu https://doi.org/10.1002/jgrd.50876 oai:zenodo.org:10143 info:eu-repo/semantics/openAccess Other (Open) Journal of geophysical research, Atmosphere, 118(20), 11,698–11,711, (2013-10-22) Atmospheric effects Convective processes Explosive volcanism Mathematical and computer modeling Volcano monitoring info:eu-repo/semantics/article 2013 ftzenodo https://doi.org/10.1002/jgrd.50876 2024-07-27T05:49:41Z The eruption of the Icelandic volcano Eyjafjallajökull in the spring of 2010 lasted for 39 days with an explosive phase (14–18 April), an effusive phase (18 April–4 May) and a phase with renewed explosive activity (5–17 May). Images every 5 seconds from a camera mounted 34 km from the volcano are available for most of the eruption. Applying the maximum cross-correlation method (MCC) on these images, the velocity structure of the eruption cloud has been mapped in detail for four time intervals covering the three phases of the eruption. The results show that on average there are updrafts in one part of the cloud, and lateral motion or downdrafts in another. Even within the updraft part, there are alternating motions of strong updrafts, weak updrafts and downward motion. These results show a highly variable plume driven by intermittent explosions. The results are discussed in the context of integral plume models, and in terms of elementary parcel theory. Article in Journal/Newspaper Eyjafjallajökull Zenodo Journal of Geophysical Research: Atmospheres 118 20 11,698 11,711 |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Atmospheric effects Convective processes Explosive volcanism Mathematical and computer modeling Volcano monitoring |
spellingShingle |
Atmospheric effects Convective processes Explosive volcanism Mathematical and computer modeling Volcano monitoring Bjornsson, Halldor Magnusson, Sindri Arason, Pordur Petersen, Guðrún Nína Velocities in the plume of the 2010 Eyjafjallajökull eruption |
topic_facet |
Atmospheric effects Convective processes Explosive volcanism Mathematical and computer modeling Volcano monitoring |
description |
The eruption of the Icelandic volcano Eyjafjallajökull in the spring of 2010 lasted for 39 days with an explosive phase (14–18 April), an effusive phase (18 April–4 May) and a phase with renewed explosive activity (5–17 May). Images every 5 seconds from a camera mounted 34 km from the volcano are available for most of the eruption. Applying the maximum cross-correlation method (MCC) on these images, the velocity structure of the eruption cloud has been mapped in detail for four time intervals covering the three phases of the eruption. The results show that on average there are updrafts in one part of the cloud, and lateral motion or downdrafts in another. Even within the updraft part, there are alternating motions of strong updrafts, weak updrafts and downward motion. These results show a highly variable plume driven by intermittent explosions. The results are discussed in the context of integral plume models, and in terms of elementary parcel theory. |
format |
Article in Journal/Newspaper |
author |
Bjornsson, Halldor Magnusson, Sindri Arason, Pordur Petersen, Guðrún Nína |
author_facet |
Bjornsson, Halldor Magnusson, Sindri Arason, Pordur Petersen, Guðrún Nína |
author_sort |
Bjornsson, Halldor |
title |
Velocities in the plume of the 2010 Eyjafjallajökull eruption |
title_short |
Velocities in the plume of the 2010 Eyjafjallajökull eruption |
title_full |
Velocities in the plume of the 2010 Eyjafjallajökull eruption |
title_fullStr |
Velocities in the plume of the 2010 Eyjafjallajökull eruption |
title_full_unstemmed |
Velocities in the plume of the 2010 Eyjafjallajökull eruption |
title_sort |
velocities in the plume of the 2010 eyjafjallajökull eruption |
publisher |
Zenodo |
publishDate |
2013 |
url |
https://doi.org/10.1002/jgrd.50876 |
genre |
Eyjafjallajökull |
genre_facet |
Eyjafjallajökull |
op_source |
Journal of geophysical research, Atmosphere, 118(20), 11,698–11,711, (2013-10-22) |
op_relation |
https://zenodo.org/communities/eu https://doi.org/10.1002/jgrd.50876 oai:zenodo.org:10143 |
op_rights |
info:eu-repo/semantics/openAccess Other (Open) |
op_doi |
https://doi.org/10.1002/jgrd.50876 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
118 |
container_issue |
20 |
container_start_page |
11,698 |
op_container_end_page |
11,711 |
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1810442928421601280 |