{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,27]],"date-time":"2026-06-27T12:38:33Z","timestamp":1782563913957,"version":"3.54.5"},"reference-count":77,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2019,5,17]],"date-time":"2019-05-17T00:00:00Z","timestamp":1558051200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001665","name":"Agence Nationale de la Recherche","doi-asserted-by":"publisher","award":["ANR-10-LABX-100-01"],"award-info":[{"award-number":["ANR-10-LABX-100-01"]}],"id":[{"id":"10.13039\/501100001665","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004617","name":"Institut National des Sciences de l'Univers, Centre National de la Recherche Scientifique","doi-asserted-by":"publisher","award":["LEFE-CHAT"],"award-info":[{"award-number":["LEFE-CHAT"]}],"id":[{"id":"10.13039\/501100004617","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Quantification of gaseous emission fluxes from volcanoes can yield valuable insights on processes occurring in the Earth\u2019s interior as part of hazard monitoring. It is also an important task in the framework of climate change, in order to refine estimates of natural emissions. Passive open-path UltraViolet (UV) scattered observation by UV camera allows the imaging of volcanic plumes and evaluation of sulfur dioxide (SO2) fluxes at high temporal resolution during daytime. Another technique of imaging is now available in the InfraRed (IR) spectral domain. Infrared hyperspectral imagers have the potential to overcome the boundary of daytime sampling of the UV, providing measurements also during the night and giving access simultaneously to additional relevant gas species. In this context the IMAGETNA campaign of measurements took place at Mt Etna (Italy) in June 2015. Three different IR imagers (commercial and under developments) were deployed, together with a Fourier Transform InfraRed spectrometer (FTIR) instrument, a UV camera, a Long Wavelength InfraRed (LWIR) camera and a radiometer. We present preliminary results obtained by the two IR cameras under development, and then the IR hyperspectral imager results, coming from full physics retrieval, are compared to those of the UV camera. The comparison points out an underestimation of the SO2 Slant Column Densities (SCD) of the UV camera by a factor of 3.6. The detailed study of the retrieved SO2 SCD highlights the promising application of IR imaging in volcanology for remotely volcanic plume gas measurements. It also provides a way to investigate uncertainties in the SO2 SCD imaging in the UV and the IR.<\/jats:p>","DOI":"10.3390\/rs11101175","type":"journal-article","created":{"date-parts":[[2019,5,17]],"date-time":"2019-05-17T11:06:46Z","timestamp":1558091206000},"page":"1175","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Infrared Hyperspectral and Ultraviolet Remote Measurements of Volcanic Gas Plume at MT Etna during IMAGETNA Campaign"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2622-9148","authenticated-orcid":false,"given":"Nathalie","family":"Huret","sequence":"first","affiliation":[{"name":"Laboratoire de Physique et Chimie de l\u2019Environnement et de l\u2019Espace, Universit\u00e9 Orl\u00e9ans, Centre National de la Recherche Scientifique, Centre National d\u2019\u00c9tudes Spatiales, 45071 Orl\u00e9ans, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8255-1521","authenticated-orcid":false,"given":"Charlotte","family":"Segonne","sequence":"additional","affiliation":[{"name":"Laboratoire de Physique et Chimie de l\u2019Environnement et de l\u2019Espace, Universit\u00e9 Orl\u00e9ans, Centre National de la Recherche Scientifique, Centre National d\u2019\u00c9tudes Spatiales, 45071 Orl\u00e9ans, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S\u00e9bastien","family":"Payan","sequence":"additional","affiliation":[{"name":"Laboratoire Atmosph\u00e8res Milieux Observations Spatiales\/Institut Pierre Simon Laplace, Sorbonne Universit\u00e9, Universit\u00e9 de Versailles Saint-Quentin-en-Yvelines, Centre National de la Recherche Scientifique, 75252 Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9336-107X","authenticated-orcid":false,"given":"Giuseppe","family":"Salerno","sequence":"additional","affiliation":[{"name":"Istituto Nazionale di Geofisica e Vulcanologia \u2013 Sezione di Catania, Osservatorio Etneo, 95125 Catania, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Val\u00e9ry","family":"Catoire","sequence":"additional","affiliation":[{"name":"Laboratoire de Physique et Chimie de l\u2019Environnement et de l\u2019Espace, Universit\u00e9 Orl\u00e9ans, Centre National de la Recherche Scientifique, Centre National d\u2019\u00c9tudes Spatiales, 45071 Orl\u00e9ans, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yann","family":"Ferrec","sequence":"additional","affiliation":[{"name":"Office National d\u2019\u00c9tudes et de Recherches A\u00e9rospatiales\/D\u00e9partement Optique et Techniques Associ\u00e9es, 91120 Palaiseau, 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France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laurence","family":"Croiz\u00e9","sequence":"additional","affiliation":[{"name":"Office National d\u2019\u00c9tudes et de Recherches A\u00e9rospatiales\/D\u00e9partement Optique et Techniques Associ\u00e9es, 91120 Palaiseau, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"St\u00e9phane","family":"Chevrier","sequence":"additional","affiliation":[{"name":"Laboratoire de Physique et Chimie de l\u2019Environnement et de l\u2019Espace, Universit\u00e9 Orl\u00e9ans, Centre National de la Recherche Scientifique, Centre National d\u2019\u00c9tudes Spatiales, 45071 Orl\u00e9ans, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"St\u00e9phane","family":"Langlois","sequence":"additional","affiliation":[{"name":"Office National d\u2019\u00c9tudes et de Recherches A\u00e9rospatiales\/D\u00e9partement Optique et Techniques Associ\u00e9es, 91120 Palaiseau, 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