Remote sensing of volcanic ash plumes from thermal infrared: a case study analysis from SEVIRI, MODIS and IASI instruments
The Eyjafjallajökull eruption during May 2010 is used as a case study to evaluate the consistency of retrievals from different thermal infrared instruments for the detection and characterization of volcanic ash plumes. In this study, the split window technique is used to estimate the optical thickne...
Published in: | Atmospheric Measurement Techniques |
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Online Access: | https://doi.org/10.5194/amt-7-359-2014 https://hal.archives-ouvertes.fr/hal-00808838/file/amt-7-359-2014.pdf https://hal.archives-ouvertes.fr/hal-00808838 |
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fttriple:oai:gotriple.eu:10670/1.7h4k3i 2023-05-15T16:09:36+02:00 Remote sensing of volcanic ash plumes from thermal infrared: a case study analysis from SEVIRI, MODIS and IASI instruments Dubuisson, Philippe Herbin, Hervé Minvielle, Fanny Compiègne, M. Thieuleux, François Parol, Fédéric Pelon, Jacques Laboratoire d’Optique Atmosphérique - UMR 8518 (LOA) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) TROPO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 2014-01-01 https://doi.org/10.5194/amt-7-359-2014 https://hal.archives-ouvertes.fr/hal-00808838/file/amt-7-359-2014.pdf https://hal.archives-ouvertes.fr/hal-00808838 en eng HAL CCSD European Geosciences Union hal-00808838 doi:10.5194/amt-7-359-2014 10670/1.7h4k3i https://hal.archives-ouvertes.fr/hal-00808838/file/amt-7-359-2014.pdf https://hal.archives-ouvertes.fr/hal-00808838 other Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1867-1381 EISSN: 1867-8548 Atmospheric Measurement Techniques Atmospheric Measurement Techniques, European Geosciences Union, 2014, 7 (2), pp.359-371. ⟨10.5194/amt-7-359-2014⟩ geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2014 fttriple https://doi.org/10.5194/amt-7-359-2014 2023-01-22T17:06:13Z The Eyjafjallajökull eruption during May 2010 is used as a case study to evaluate the consistency of retrievals from different thermal infrared instruments for the detection and characterization of volcanic ash plumes. In this study, the split window technique is used to estimate the optical thickness, the effective particle size and the mass concentration of volcanic particles from brightness temperatures measured in the infrared atmospheric window (8-12 μm). Retrievals are obtained for several mineral compositions whose optical properties are computed using Mie theory accounting for spectral variations of the refractive index. The method is applied similarly to data from MODIS, SEVIRI and IASI space-borne instruments, using two channels at 11 μm and 12 μm. Despite different instrumental characteristics, the results are in good agreement, which denotes the robustness of the retrieval method and the consistency of the observations. Nevertheless, the refractive index data and altitude used for the plume in the inversion may lead to large uncertainties in retrieved effective size and mass concentration in dense plumes and makes it difficult to estimate its composition. While it brings additional constrains, the use of a third channel (8.7 μm) does not allow determining the nature of the particles. As confirmed with high spectral resolution radiative transfer simulations, hyperspectral sensors, such as IASI, are well-suited to study the particle composition of volcanic plumes. Article in Journal/Newspaper Eyjafjallajökull Unknown Atmospheric Measurement Techniques 7 2 359 371 |
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geo envir Dubuisson, Philippe Herbin, Hervé Minvielle, Fanny Compiègne, M. Thieuleux, François Parol, Fédéric Pelon, Jacques Remote sensing of volcanic ash plumes from thermal infrared: a case study analysis from SEVIRI, MODIS and IASI instruments |
topic_facet |
geo envir |
description |
The Eyjafjallajökull eruption during May 2010 is used as a case study to evaluate the consistency of retrievals from different thermal infrared instruments for the detection and characterization of volcanic ash plumes. In this study, the split window technique is used to estimate the optical thickness, the effective particle size and the mass concentration of volcanic particles from brightness temperatures measured in the infrared atmospheric window (8-12 μm). Retrievals are obtained for several mineral compositions whose optical properties are computed using Mie theory accounting for spectral variations of the refractive index. The method is applied similarly to data from MODIS, SEVIRI and IASI space-borne instruments, using two channels at 11 μm and 12 μm. Despite different instrumental characteristics, the results are in good agreement, which denotes the robustness of the retrieval method and the consistency of the observations. Nevertheless, the refractive index data and altitude used for the plume in the inversion may lead to large uncertainties in retrieved effective size and mass concentration in dense plumes and makes it difficult to estimate its composition. While it brings additional constrains, the use of a third channel (8.7 μm) does not allow determining the nature of the particles. As confirmed with high spectral resolution radiative transfer simulations, hyperspectral sensors, such as IASI, are well-suited to study the particle composition of volcanic plumes. |
author2 |
Laboratoire d’Optique Atmosphérique - UMR 8518 (LOA) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) TROPO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Dubuisson, Philippe Herbin, Hervé Minvielle, Fanny Compiègne, M. Thieuleux, François Parol, Fédéric Pelon, Jacques |
author_facet |
Dubuisson, Philippe Herbin, Hervé Minvielle, Fanny Compiègne, M. Thieuleux, François Parol, Fédéric Pelon, Jacques |
author_sort |
Dubuisson, Philippe |
title |
Remote sensing of volcanic ash plumes from thermal infrared: a case study analysis from SEVIRI, MODIS and IASI instruments |
title_short |
Remote sensing of volcanic ash plumes from thermal infrared: a case study analysis from SEVIRI, MODIS and IASI instruments |
title_full |
Remote sensing of volcanic ash plumes from thermal infrared: a case study analysis from SEVIRI, MODIS and IASI instruments |
title_fullStr |
Remote sensing of volcanic ash plumes from thermal infrared: a case study analysis from SEVIRI, MODIS and IASI instruments |
title_full_unstemmed |
Remote sensing of volcanic ash plumes from thermal infrared: a case study analysis from SEVIRI, MODIS and IASI instruments |
title_sort |
remote sensing of volcanic ash plumes from thermal infrared: a case study analysis from seviri, modis and iasi instruments |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://doi.org/10.5194/amt-7-359-2014 https://hal.archives-ouvertes.fr/hal-00808838/file/amt-7-359-2014.pdf https://hal.archives-ouvertes.fr/hal-00808838 |
genre |
Eyjafjallajökull |
genre_facet |
Eyjafjallajökull |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1867-1381 EISSN: 1867-8548 Atmospheric Measurement Techniques Atmospheric Measurement Techniques, European Geosciences Union, 2014, 7 (2), pp.359-371. ⟨10.5194/amt-7-359-2014⟩ |
op_relation |
hal-00808838 doi:10.5194/amt-7-359-2014 10670/1.7h4k3i https://hal.archives-ouvertes.fr/hal-00808838/file/amt-7-359-2014.pdf https://hal.archives-ouvertes.fr/hal-00808838 |
op_rights |
other |
op_doi |
https://doi.org/10.5194/amt-7-359-2014 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
7 |
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2 |
container_start_page |
359 |
op_container_end_page |
371 |
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1766405458887704576 |