Exploring the in situ high temperature emissivity of 2014-2015 Bardarbunga magmas
International audience Temperature is a key parameter controlling the rheology of lava flows. Unfortunately, the hazardous behavior of eruptions prevents direct measurements of hot magmatic bodies. Hence, the temperature of magma is mostly retrieved by using remote sensing methods (ground-based or s...
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HAL CCSD
2021
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Online Access: | https://hal.science/hal-03554570 https://hal.science/hal-03554570/document https://hal.science/hal-03554570/file/EGU21-714-print.pdf https://doi.org/10.5194/egusphere-egu21-714 |
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Université d'Orléans: HAL |
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English |
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[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Biren, Jonas Cosson, Lionel del Campo, Leire Genevois, Cécile Veron, Emmanuel Ory, Sandra Li, Hao Slodczyk, Aneta Andújar, Joan Exploring the in situ high temperature emissivity of 2014-2015 Bardarbunga magmas |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience Temperature is a key parameter controlling the rheology of lava flows. Unfortunately, the hazardous behavior of eruptions prevents direct measurements of hot magmatic bodies. Hence, the temperature of magma is mostly retrieved by using remote sensing methods (ground-based or satellite-based detectors) build on measuring the infrared (IR) radiance of the body [1]. These well-established techniques are however subjected to important errors related to, among others, the poor knowledge of the spectral emissivity (ɛ), which is one of the most critical parameters in IR radiance measurement [2, 3]. In this study, we performed in situ optical measurements at relevant magmatic temperatures of basaltic magma from the 2014-2015 Holuhraun eruption (Bardarbunga volcano, Iceland). Spectral emissivity has been systematically determined over a wide spectral range (400-15000 cm‑1) covering TIR, MIR and SWIR regions, from room temperature up to 1473 K using a non-contact in situ IR emissivity apparatus [4]. SEM, EMPA, Raman spectroscopy, DSC, XRD and TEM techniques helped characterize and understand the complex radiative behavior of this natural magmatic composition. The results show not only that spectral emissivity varies accordingly with temperature and wavenumber but also that small changes in bulk rock composition or texture produce drastic changes in emissivity at given temperature, with iron content and its oxidation state being the main agents controlling this parameter. Appropriate emissivity values can then be used to refine current radiative data from IR remote sensing and to implement the thermo-rheological models of lava flows [5] as to support hazard assessment and risk mitigation.References: [1] Kolzenburg et al. 2017. Bull. Volc. 79:45. [2] Harris, A. 2013: Cambridge University press. 728. [3] Rogic et al. 2019 Remote Sens., 11, 662 [4] De Sousa Meneses et al. 2015. Infrared Physics & Technology 69. [5] Ramsey et al. 2019. Annals of Geophysics, 62, 2.Keywords: Spectral emissivity, ... |
author2 |
Institut des Sciences de la Terre d'Orléans - UMR7327 (ISTO) Bureau de Recherches Géologiques et Minières (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS) Magma - UMR7327 Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Bureau de Recherches Géologiques et Minières (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC) Conditions Extrêmes et Matériaux : Haute Température et Irradiation (CEMHTI) Université d'Orléans (UO)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Conference Object |
author |
Biren, Jonas Cosson, Lionel del Campo, Leire Genevois, Cécile Veron, Emmanuel Ory, Sandra Li, Hao Slodczyk, Aneta Andújar, Joan |
author_facet |
Biren, Jonas Cosson, Lionel del Campo, Leire Genevois, Cécile Veron, Emmanuel Ory, Sandra Li, Hao Slodczyk, Aneta Andújar, Joan |
author_sort |
Biren, Jonas |
title |
Exploring the in situ high temperature emissivity of 2014-2015 Bardarbunga magmas |
title_short |
Exploring the in situ high temperature emissivity of 2014-2015 Bardarbunga magmas |
title_full |
Exploring the in situ high temperature emissivity of 2014-2015 Bardarbunga magmas |
title_fullStr |
Exploring the in situ high temperature emissivity of 2014-2015 Bardarbunga magmas |
title_full_unstemmed |
Exploring the in situ high temperature emissivity of 2014-2015 Bardarbunga magmas |
title_sort |
exploring the in situ high temperature emissivity of 2014-2015 bardarbunga magmas |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03554570 https://hal.science/hal-03554570/document https://hal.science/hal-03554570/file/EGU21-714-print.pdf https://doi.org/10.5194/egusphere-egu21-714 |
op_coverage |
Online, France |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
vEGU21: Gather Online https://hal.science/hal-03554570 vEGU21: Gather Online, Apr 2021, Online, France. ⟨10.5194/egusphere-egu21-714⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu21-714 hal-03554570 https://hal.science/hal-03554570 https://hal.science/hal-03554570/document https://hal.science/hal-03554570/file/EGU21-714-print.pdf BIBCODE: 2021EGUGA.23.714B doi:10.5194/egusphere-egu21-714 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/egusphere-egu21-714 |
_version_ |
1799482705250877440 |
spelling |
ftunivorleans:oai:HAL:hal-03554570v1 2024-05-19T07:43:00+00:00 Exploring the in situ high temperature emissivity of 2014-2015 Bardarbunga magmas Biren, Jonas Cosson, Lionel del Campo, Leire Genevois, Cécile Veron, Emmanuel Ory, Sandra Li, Hao Slodczyk, Aneta Andújar, Joan Institut des Sciences de la Terre d'Orléans - UMR7327 (ISTO) Bureau de Recherches Géologiques et Minières (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS) Magma - UMR7327 Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Bureau de Recherches Géologiques et Minières (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC) Conditions Extrêmes et Matériaux : Haute Température et Irradiation (CEMHTI) Université d'Orléans (UO)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) Online, France 2021-04-19 https://hal.science/hal-03554570 https://hal.science/hal-03554570/document https://hal.science/hal-03554570/file/EGU21-714-print.pdf https://doi.org/10.5194/egusphere-egu21-714 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu21-714 hal-03554570 https://hal.science/hal-03554570 https://hal.science/hal-03554570/document https://hal.science/hal-03554570/file/EGU21-714-print.pdf BIBCODE: 2021EGUGA.23.714B doi:10.5194/egusphere-egu21-714 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess vEGU21: Gather Online https://hal.science/hal-03554570 vEGU21: Gather Online, Apr 2021, Online, France. ⟨10.5194/egusphere-egu21-714⟩ [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/conferenceObject Conference papers 2021 ftunivorleans https://doi.org/10.5194/egusphere-egu21-714 2024-05-01T23:57:15Z International audience Temperature is a key parameter controlling the rheology of lava flows. Unfortunately, the hazardous behavior of eruptions prevents direct measurements of hot magmatic bodies. Hence, the temperature of magma is mostly retrieved by using remote sensing methods (ground-based or satellite-based detectors) build on measuring the infrared (IR) radiance of the body [1]. These well-established techniques are however subjected to important errors related to, among others, the poor knowledge of the spectral emissivity (ɛ), which is one of the most critical parameters in IR radiance measurement [2, 3]. In this study, we performed in situ optical measurements at relevant magmatic temperatures of basaltic magma from the 2014-2015 Holuhraun eruption (Bardarbunga volcano, Iceland). Spectral emissivity has been systematically determined over a wide spectral range (400-15000 cm‑1) covering TIR, MIR and SWIR regions, from room temperature up to 1473 K using a non-contact in situ IR emissivity apparatus [4]. SEM, EMPA, Raman spectroscopy, DSC, XRD and TEM techniques helped characterize and understand the complex radiative behavior of this natural magmatic composition. The results show not only that spectral emissivity varies accordingly with temperature and wavenumber but also that small changes in bulk rock composition or texture produce drastic changes in emissivity at given temperature, with iron content and its oxidation state being the main agents controlling this parameter. Appropriate emissivity values can then be used to refine current radiative data from IR remote sensing and to implement the thermo-rheological models of lava flows [5] as to support hazard assessment and risk mitigation.References: [1] Kolzenburg et al. 2017. Bull. Volc. 79:45. [2] Harris, A. 2013: Cambridge University press. 728. [3] Rogic et al. 2019 Remote Sens., 11, 662 [4] De Sousa Meneses et al. 2015. Infrared Physics & Technology 69. [5] Ramsey et al. 2019. Annals of Geophysics, 62, 2.Keywords: Spectral emissivity, ... Conference Object Iceland Université d'Orléans: HAL |