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Enhanced volcanic hot-spot detection using MODIS IR data; results from the MIROVA system

D. Coppola, M. Laiolo, C. Cigolini, D. Delle Donne and M. Ripepe
Enhanced volcanic hot-spot detection using MODIS IR data; results from the MIROVA system (in Detecting, modelling and responding to effusive eruptions, A. J. L. Harris (editor), T. de Groeve (editor), F. Garel (editor) and S. A. Carn (editor))
Special Publication - Geological Society of London (May 2015) 426 (1): 181-205

Abstract

We describe a new volcanic hotspot detection system, named Middle InfraRed Observation of Volcanic Activity (MIROVA), based on the analysis of infrared data acquired by the Moderate Resolution Imaging Spectroradiometer sensor (MODIS). MIROVA uses the middle infrared radiation (MIR), measured by MODIS, in order to detect and measure the heat radiation deriving from volcanic activity. The algorithm combines spectral and spatial principles, allowing the detection of heat sources from 1 megawatt (MW) to more than 10 gigawatt (GW). This provides a unique opportunity to: (i) recognize small-scale variations in thermal output that may precede the onset of effusive activity; (ii) track the advance of large lava flows; (iii) estimate lava discharge rates; (iv) identify distinct effusive trends; and, lastly, (v) follow the cooling process of voluminous lava bodies for several months. Here we show the results obtained from data sets spanning 14 years recorded at the Stromboli and Mt Etna volcanoes, Italy, and we investigate the above aspects at these two persistently active volcanoes. Finally, we describe how the algorithm has been implemented within an operational near-real-time processing chain that enables the MIROVA system to provide data and infrared maps within 1-4 h of the satellite overpass.


ISSN: 0305-8719
EISSN: 2041-4927
Coden: GSLSBW
Serial Title: Special Publication - Geological Society of London
Serial Volume: 426
Serial Issue: 1
Title: Enhanced volcanic hot-spot detection using MODIS IR data; results from the MIROVA system
Title: Detecting, modelling and responding to effusive eruptions
Author(s): Coppola, D.Laiolo, M.Cigolini, C.Delle Donne, D.Ripepe, M.
Author(s): Harris, A. J. L.editor
Author(s): de Groeve, T.editor
Author(s): Garel, F.editor
Author(s): Carn, S. A.editor
Affiliation: Universita di Torino, Dipartimento di Scienze della Terra, Turin, Italy
Pages: 181-205
Published: 20150514
Text Language: English
Publisher: Geological Society of London, London, United Kingdom
Number of pages: 25
References: 66
Accession Number: 2015-093441
Categories: Applied geophysicsQuaternary geology
Document Type: Serial
Bibliographic Level: Analytic
Annotation: Includes appendices
Illustration Description: illus. incl. 1 table
N38°47'60" - N38°47'60", E15°15'00" - E15°15'00"
N37°45'00" - N37°45'00", E15°01'00" - E15°01'00"
Secondary Affiliation: Universita di Firenze, ITA, Italy
Source Note: Online First
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 201540
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