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Volcanic SO2 by UV-TIR satellite retrievals: validation by using ground-based network at Mt. Etna

Spinetti, Claudia and Salerno, Giuseppe Giovanni and Caltabiano, Tommaso and Carboni, Elisa and Clarisse, L. and Corradini, Stefano and Grainger, R. G. and Hedelt, Pascal and Koukouli, MariLiza and Merucci, L. and Siddans, Richard and Tampellini, Lucia and Theys, Nicolas and Valks, Pieter and Zehner, Claus (2014) Volcanic SO2 by UV-TIR satellite retrievals: validation by using ground-based network at Mt. Etna. Annals of Geophysics, 57, pp. 1-6. COPERNICUS. DOI: 10.4401/ag-6641 ISSN 1593-5213

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Official URL: http://www.annalsofgeophysics.eu/index.php/annals/article/view/6641/6482

Abstract

Mt. Etna volcano in Italy is one of the most active degassing volcanoes worldwide, emitting a mean of 1.7 Mt/year of Sulphur Dioxide (SO2) in quiescent periods. In this work, SO2 measurements retrieved by Moderate Resolution Imaging Spectroradiometer (MODIS), hyper-spectral Infrared Atmospheric Sounding Interferometer (IASI) and the second Global Ozone Monitoring Experiment (GOME-2) data are compared with the ground-based data from the FLux Automatic MEasurement monitoring network (FLAME). Among the eighteen lava fountain episodes occurring at Mt. Etna in 2011, the 10 April paroxysmal event has been selected as a case-study for the simultaneous observation of the SO2 cloud by satellite and ground-based sensors. For each data-set two retrieval techniques were adopted and the measurements of SO2 mass and flux with their respective uncertainty were obtained. With respect to the FLAME SO2 mass of 4.5 Gg, MODIS, IASI and GOME-2 differ by about 10%, 15% and 30%, respectively. The SO2 flux correlation coefficient between MODIS and FLAME is 0.84. All the retrievals within the respective errors are in agreement with the ground-based measurements supporting the validity of these space measurements.

Item URL in elib:https://elib.dlr.de/103671/
Document Type:Article
Title:Volcanic SO2 by UV-TIR satellite retrievals: validation by using ground-based network at Mt. Etna
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Spinetti, ClaudiaIstituto Nazionale di Geofisica e VulcanologiaUNSPECIFIED
Salerno, Giuseppe GiovanniIstituto Nazionale di Geofisica e VulcanologiaUNSPECIFIED
Caltabiano, TommasoIstituto Nazionale di Geofisica e VulcanologiaUNSPECIFIED
Carboni, ElisaUniv. of Oxford, Oxford, UKUNSPECIFIED
Clarisse, L.Univ. Libre de Bruxelles, Brussels, BUNSPECIFIED
Corradini, StefanoIstituto Nazionale di Geofisica e VulcanologiaUNSPECIFIED
Grainger, R. G.Univ. of Oxford, Oxford, UKUNSPECIFIED
Hedelt, PascalGerman Aerospace Center, Remote Sensing Technology Institute, Wessling, GermanyUNSPECIFIED
Koukouli, MariLizaAUTHUNSPECIFIED
Merucci, L.Istituto Nazionale di Geofisica e VulcanologiaUNSPECIFIED
Siddans, RichardRutherford Appleton Laboratory, UKUNSPECIFIED
Tampellini, LuciaCompagnia Generale per lo Spazio, ItalyUNSPECIFIED
Theys, NicolasBelgian Institute for Space AeronomyUNSPECIFIED
Valks, PieterGerman Aerospace Center, Remote Sensing Technology Institute, Wessling, GermanyUNSPECIFIED
Zehner, ClausESA-ESRINUNSPECIFIED
Date:2014
Journal or Publication Title:Annals of Geophysics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:57
DOI :10.4401/ag-6641
Page Range:pp. 1-6
Publisher:COPERNICUS
Series Name:Fast Track
ISSN:1593-5213
Status:Published
Keywords:Volcano, SO2, satellite, validation Mt. Etna
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Ozon-SAF (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Valks, Dr. Pieter
Deposited On:31 Mar 2016 14:27
Last Modified:10 Jan 2019 15:46

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