Microwave remote sensing of the 2011 Plinian eruption of the Grímsvötn Icelandic volcano
The sub-glacial Plinian explosive eruption of the Grímsvötn volcano, which occurred on May 2011, is for the first time analyzed and quantitatively interpreted by using ground-based weather radar data and the Volcanic Ash Radar Retrieval (VARR) physically-based technique. The prevailing southerly win...
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Online Access: | http://hdl.handle.net/11573/675472 https://doi.org/10.1016/j.rse.2012.11.005 |
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ftunivromairis:oai:iris.uniroma1.it:11573/675472 2024-02-27T08:42:29+00:00 Microwave remote sensing of the 2011 Plinian eruption of the Grímsvötn Icelandic volcano MARZANO, FRANK SILVIO MONTOPOLI, MARIO Mirko Lamantea Michael Herzog Hans Graf Domenico Cimini Marzano, FRANK SILVIO Mirko, Lamantea Montopoli, Mario Michael, Herzog Hans, Graf Domenico, Cimini 2013 http://hdl.handle.net/11573/675472 https://doi.org/10.1016/j.rse.2012.11.005 eng eng Elsevier info:eu-repo/semantics/altIdentifier/wos/WOS:000315308300015 volume:129 firstpage:168 lastpage:184 numberofpages:17 journal:REMOTE SENSING OF ENVIRONMENT http://hdl.handle.net/11573/675472 doi:10.1016/j.rse.2012.11.005 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84870296934 weather radar vulcani inversion method volcanic eruption cloud ash retrieval radar meteorology radar microwave radiometry microonde info:eu-repo/semantics/article 2013 ftunivromairis https://doi.org/10.1016/j.rse.2012.11.005 2024-01-31T17:49:55Z The sub-glacial Plinian explosive eruption of the Grímsvötn volcano, which occurred on May 2011, is for the first time analyzed and quantitatively interpreted by using ground-based weather radar data and the Volcanic Ash Radar Retrieval (VARR) physically-based technique. The prevailing southerly winds stretched the erupted plume toward the Artic pole, thus preventing the ash cloud to move toward continental Europe and threatening the airline traffic (different from the less explosive Eyjafjöll eruption on April and May 2010). The 2011 Grímsvötn eruption has been continuously monitored by the Keflavík C-band weather radar, located at a distance of about 260km from the volcano vent. The VARR methodology is summarized and applied to available radar time series to estimate the coarse ash particle category, volume, fallout, concentration and the plume maximum height, every 5min within the volcano vent surroundings (i.e. an area of about 100×100km2 around the volcano). Due to the large distance from the volcano, fine-grained ash cannot be detected and estimated by the Keflavík C-band weather radar. Estimates of the eruption discharge rate, based on the retrieved ash plume top height, are provided together with an evaluation of the total erupted mass and volume. Deposited ash at ground is also retrieved from radar data by empirically reconstructing the vertical profile of radar reflectivity and estimating the near-surface ash fallout. Radar-based ash retrieval results can be compared with available satellite microwave radiometric imagery in order to show the potential contribution and limitations of these microwave remote sensing products to the understanding and modeling of explosive volcanic ash eruptions. Spaceborne microwave brightness temperatures show a correlation with ash columnar content, derived from VARR, depending on the millimeter-wave frequency and on the spatial averaging. Microphysical sensitivity of satellite microwave brightness temperatures to plume fine and coarse ash suggests their exploitation in ... Article in Journal/Newspaper Keflavík Sapienza Università di Roma: CINECA IRIS Keflavík ENVELOPE(-22.567,-22.567,64.000,64.000) Remote Sensing of Environment 129 168 184 |
institution |
Open Polar |
collection |
Sapienza Università di Roma: CINECA IRIS |
op_collection_id |
ftunivromairis |
language |
English |
topic |
weather radar vulcani inversion method volcanic eruption cloud ash retrieval radar meteorology radar microwave radiometry microonde |
spellingShingle |
weather radar vulcani inversion method volcanic eruption cloud ash retrieval radar meteorology radar microwave radiometry microonde MARZANO, FRANK SILVIO MONTOPOLI, MARIO Mirko Lamantea Michael Herzog Hans Graf Domenico Cimini Microwave remote sensing of the 2011 Plinian eruption of the Grímsvötn Icelandic volcano |
topic_facet |
weather radar vulcani inversion method volcanic eruption cloud ash retrieval radar meteorology radar microwave radiometry microonde |
description |
The sub-glacial Plinian explosive eruption of the Grímsvötn volcano, which occurred on May 2011, is for the first time analyzed and quantitatively interpreted by using ground-based weather radar data and the Volcanic Ash Radar Retrieval (VARR) physically-based technique. The prevailing southerly winds stretched the erupted plume toward the Artic pole, thus preventing the ash cloud to move toward continental Europe and threatening the airline traffic (different from the less explosive Eyjafjöll eruption on April and May 2010). The 2011 Grímsvötn eruption has been continuously monitored by the Keflavík C-band weather radar, located at a distance of about 260km from the volcano vent. The VARR methodology is summarized and applied to available radar time series to estimate the coarse ash particle category, volume, fallout, concentration and the plume maximum height, every 5min within the volcano vent surroundings (i.e. an area of about 100×100km2 around the volcano). Due to the large distance from the volcano, fine-grained ash cannot be detected and estimated by the Keflavík C-band weather radar. Estimates of the eruption discharge rate, based on the retrieved ash plume top height, are provided together with an evaluation of the total erupted mass and volume. Deposited ash at ground is also retrieved from radar data by empirically reconstructing the vertical profile of radar reflectivity and estimating the near-surface ash fallout. Radar-based ash retrieval results can be compared with available satellite microwave radiometric imagery in order to show the potential contribution and limitations of these microwave remote sensing products to the understanding and modeling of explosive volcanic ash eruptions. Spaceborne microwave brightness temperatures show a correlation with ash columnar content, derived from VARR, depending on the millimeter-wave frequency and on the spatial averaging. Microphysical sensitivity of satellite microwave brightness temperatures to plume fine and coarse ash suggests their exploitation in ... |
author2 |
Marzano, FRANK SILVIO Mirko, Lamantea Montopoli, Mario Michael, Herzog Hans, Graf Domenico, Cimini |
format |
Article in Journal/Newspaper |
author |
MARZANO, FRANK SILVIO MONTOPOLI, MARIO Mirko Lamantea Michael Herzog Hans Graf Domenico Cimini |
author_facet |
MARZANO, FRANK SILVIO MONTOPOLI, MARIO Mirko Lamantea Michael Herzog Hans Graf Domenico Cimini |
author_sort |
MARZANO, FRANK SILVIO |
title |
Microwave remote sensing of the 2011 Plinian eruption of the Grímsvötn Icelandic volcano |
title_short |
Microwave remote sensing of the 2011 Plinian eruption of the Grímsvötn Icelandic volcano |
title_full |
Microwave remote sensing of the 2011 Plinian eruption of the Grímsvötn Icelandic volcano |
title_fullStr |
Microwave remote sensing of the 2011 Plinian eruption of the Grímsvötn Icelandic volcano |
title_full_unstemmed |
Microwave remote sensing of the 2011 Plinian eruption of the Grímsvötn Icelandic volcano |
title_sort |
microwave remote sensing of the 2011 plinian eruption of the grímsvötn icelandic volcano |
publisher |
Elsevier |
publishDate |
2013 |
url |
http://hdl.handle.net/11573/675472 https://doi.org/10.1016/j.rse.2012.11.005 |
long_lat |
ENVELOPE(-22.567,-22.567,64.000,64.000) |
geographic |
Keflavík |
geographic_facet |
Keflavík |
genre |
Keflavík |
genre_facet |
Keflavík |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000315308300015 volume:129 firstpage:168 lastpage:184 numberofpages:17 journal:REMOTE SENSING OF ENVIRONMENT http://hdl.handle.net/11573/675472 doi:10.1016/j.rse.2012.11.005 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84870296934 |
op_doi |
https://doi.org/10.1016/j.rse.2012.11.005 |
container_title |
Remote Sensing of Environment |
container_volume |
129 |
container_start_page |
168 |
op_container_end_page |
184 |
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