Investigation of the complex dynamics and structure of the 2010 Eyjafjallajökull volcanic ash cloud using multispectral images and numerical simulations
We investigated the structure and evolution of the 2010 Eyjafjallajökull volcanic cloud and its dispersal over Iceland and Europe integrating satellite multispectral images and numerical simulations. Data acquired by Medium Resolution Imaging Spectrometer (MERIS)and Advanced Spaceborne Thermal Emiss...
Published in: | Journal of Geophysical Research: Atmospheres |
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Language: | English |
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Online Access: | http://hdl.handle.net/2122/8937 https://doi.org/10.1002/jgrd.50328 |
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ftingv:oai:www.earth-prints.org:2122/8937 2023-05-15T16:09:32+02:00 Investigation of the complex dynamics and structure of the 2010 Eyjafjallajökull volcanic ash cloud using multispectral images and numerical simulations Spinetti, C. Barsotti, S. Neri, A. Buongiorno, M. F. Doumaz, F. Nannipieri, L. Spinetti, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Barsotti, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia Neri, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia Buongiorno, M. F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Doumaz, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Nannipieri, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia 2013 http://hdl.handle.net/2122/8937 https://doi.org/10.1002/jgrd.50328 en eng American Geophysical Union Journal of geophysical research - atmospheres /118 (2013) 0148-0227 http://hdl.handle.net/2122/8937 doi:10.1002/jgrd.50328 restricted Volcanic ash cloud Satellite retrieval Numerical modelling Eyjafjallajokull Ash dispersal and deposition 01. Atmosphere::01.01. Atmosphere::01.01.07. Volcanic effects article 2013 ftingv https://doi.org/10.1002/jgrd.50328 2022-07-29T06:06:34Z We investigated the structure and evolution of the 2010 Eyjafjallajökull volcanic cloud and its dispersal over Iceland and Europe integrating satellite multispectral images and numerical simulations. Data acquired by Medium Resolution Imaging Spectrometer (MERIS)and Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) have been analyzed to quantify the cloud extent and composition. The VOL-CALPUFF dispersal code was applied to reconstruct the transient and 3-D evolution of the cloud. Source parameters estimated on the base of available a posteriori volcanological data sets have been used. Quantitative comparisons between satellite retrievals and modeling results were performed for two selected instants of time during the first and third eruptive phases on a regional scale. Sensitivity of the model to initial volcanological conditions has been analyzed at continental scale. Several complex non intuitive features of cloud dynamics have been highlighted and strengths and limitations of the adopted methods identified. The main findings are: the level of quantitative agreement between satellite observations and numerical results depends on ash cloud composition (particle sizes and concentration) with better agreement for smaller particles and higher concentrations; the agreement between observations and modeling outcomes also depends on the temporal stability of volcanological conditions and the complexity of the meteorological wind field; the irregular dispersion of ash, as reconstructed from satellite data and numerical modeling, can be well explained by the different response of particle sizes to strong vertical wind-shear, and by resuspension processes acting at ground level; eruptive source conditions are the main source of uncertainty in modeling, especially during an ongoing crisis and at long-range scales. Published 4729–4747 3V. Dinamiche e scenari eruttivi JCR Journal restricted Article in Journal/Newspaper Eyjafjallajökull Iceland Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Eyjafjallajokull ENVELOPE(-19.633,-19.633,63.631,63.631) Journal of Geophysical Research: Atmospheres 118 10 4729 4747 |
institution |
Open Polar |
collection |
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftingv |
language |
English |
topic |
Volcanic ash cloud Satellite retrieval Numerical modelling Eyjafjallajokull Ash dispersal and deposition 01. Atmosphere::01.01. Atmosphere::01.01.07. Volcanic effects |
spellingShingle |
Volcanic ash cloud Satellite retrieval Numerical modelling Eyjafjallajokull Ash dispersal and deposition 01. Atmosphere::01.01. Atmosphere::01.01.07. Volcanic effects Spinetti, C. Barsotti, S. Neri, A. Buongiorno, M. F. Doumaz, F. Nannipieri, L. Investigation of the complex dynamics and structure of the 2010 Eyjafjallajökull volcanic ash cloud using multispectral images and numerical simulations |
topic_facet |
Volcanic ash cloud Satellite retrieval Numerical modelling Eyjafjallajokull Ash dispersal and deposition 01. Atmosphere::01.01. Atmosphere::01.01.07. Volcanic effects |
description |
We investigated the structure and evolution of the 2010 Eyjafjallajökull volcanic cloud and its dispersal over Iceland and Europe integrating satellite multispectral images and numerical simulations. Data acquired by Medium Resolution Imaging Spectrometer (MERIS)and Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) have been analyzed to quantify the cloud extent and composition. The VOL-CALPUFF dispersal code was applied to reconstruct the transient and 3-D evolution of the cloud. Source parameters estimated on the base of available a posteriori volcanological data sets have been used. Quantitative comparisons between satellite retrievals and modeling results were performed for two selected instants of time during the first and third eruptive phases on a regional scale. Sensitivity of the model to initial volcanological conditions has been analyzed at continental scale. Several complex non intuitive features of cloud dynamics have been highlighted and strengths and limitations of the adopted methods identified. The main findings are: the level of quantitative agreement between satellite observations and numerical results depends on ash cloud composition (particle sizes and concentration) with better agreement for smaller particles and higher concentrations; the agreement between observations and modeling outcomes also depends on the temporal stability of volcanological conditions and the complexity of the meteorological wind field; the irregular dispersion of ash, as reconstructed from satellite data and numerical modeling, can be well explained by the different response of particle sizes to strong vertical wind-shear, and by resuspension processes acting at ground level; eruptive source conditions are the main source of uncertainty in modeling, especially during an ongoing crisis and at long-range scales. Published 4729–4747 3V. Dinamiche e scenari eruttivi JCR Journal restricted |
author2 |
Spinetti, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Barsotti, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia Neri, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia Buongiorno, M. F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Doumaz, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Nannipieri, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia |
format |
Article in Journal/Newspaper |
author |
Spinetti, C. Barsotti, S. Neri, A. Buongiorno, M. F. Doumaz, F. Nannipieri, L. |
author_facet |
Spinetti, C. Barsotti, S. Neri, A. Buongiorno, M. F. Doumaz, F. Nannipieri, L. |
author_sort |
Spinetti, C. |
title |
Investigation of the complex dynamics and structure of the 2010 Eyjafjallajökull volcanic ash cloud using multispectral images and numerical simulations |
title_short |
Investigation of the complex dynamics and structure of the 2010 Eyjafjallajökull volcanic ash cloud using multispectral images and numerical simulations |
title_full |
Investigation of the complex dynamics and structure of the 2010 Eyjafjallajökull volcanic ash cloud using multispectral images and numerical simulations |
title_fullStr |
Investigation of the complex dynamics and structure of the 2010 Eyjafjallajökull volcanic ash cloud using multispectral images and numerical simulations |
title_full_unstemmed |
Investigation of the complex dynamics and structure of the 2010 Eyjafjallajökull volcanic ash cloud using multispectral images and numerical simulations |
title_sort |
investigation of the complex dynamics and structure of the 2010 eyjafjallajökull volcanic ash cloud using multispectral images and numerical simulations |
publisher |
American Geophysical Union |
publishDate |
2013 |
url |
http://hdl.handle.net/2122/8937 https://doi.org/10.1002/jgrd.50328 |
long_lat |
ENVELOPE(-19.633,-19.633,63.631,63.631) |
geographic |
Eyjafjallajokull |
geographic_facet |
Eyjafjallajokull |
genre |
Eyjafjallajökull Iceland |
genre_facet |
Eyjafjallajökull Iceland |
op_relation |
Journal of geophysical research - atmospheres /118 (2013) 0148-0227 http://hdl.handle.net/2122/8937 doi:10.1002/jgrd.50328 |
op_rights |
restricted |
op_doi |
https://doi.org/10.1002/jgrd.50328 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
118 |
container_issue |
10 |
container_start_page |
4729 |
op_container_end_page |
4747 |
_version_ |
1766405404436201472 |