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Monitoring of the 2015 Villarrica Volcano Eruption by Means of DLR's Experimental TET-1 Satellite

Plank, Simon Manuel and Nolde, Michael and Richter, Rudolf and Fischer, Christian and Martinis, Sandro and Riedlinger, Torsten and Schöpfer, Elisabeth and Klein, Doris (2021) Monitoring of the 2015 Villarrica Volcano Eruption by Means of DLR's Experimental TET-1 Satellite. In: Remote Sensing of Volcanic Processes and Risk MDPI. pp. 19-35. doi: 10.3390/books978-3-0365-0127-7. ISBN 978-3-0365-0126-0.

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Official URL: https://www.mdpi.com/books/pdfview/book/3508


Villarrica Volcano is one of the most active volcanoes in the South Andes Volcanic Zone. This article presents the results of a monitoring of the time before and after the 3 March 2015 eruption by analyzing nine satellite images acquired by the Technology Experiment Carrier-1 (TET-1), a small experimental German Aerospace Center (DLR) satellite. An atmospheric correction of the TET-1 data is presented, based on the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Emissivity Database (GDEM) and Moderate Resolution Imaging Spectroradiometer (MODIS) water vapor data with the shortest temporal baseline to the TET-1 acquisitions. Next, the temperature, area coverage, and radiant power of the detected thermal hotspots were derived at subpixel level and compared with observations derived from MODIS and Visible Infrared Imaging Radiometer Suite (VIIRS) data. Thermal anomalies were detected nine days before the eruption. After the decrease of the radiant power following the 3 March 2015 eruption, a stronger increase of the radiant power was observed on 25 April 2015. In addition, we show that the eruption-related ash coverage of the glacier at Villarrica Volcano could clearly be detected in TET-1 imagery. Landsat-8 imagery was analyzed for comparison. The information extracted from the TET-1 thermal data is thought be used in future to support and complement ground-based observations of active volcanoes.

Item URL in elib:https://elib.dlr.de/142105/
Document Type:Contribution to a Collection
Title:Monitoring of the 2015 Villarrica Volcano Eruption by Means of DLR's Experimental TET-1 Satellite
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Plank, Simon ManuelUNSPECIFIEDhttps://orcid.org/0000-0002-5793-052XUNSPECIFIED
Nolde, MichaelUNSPECIFIEDhttps://orcid.org/0000-0002-6981-9730UNSPECIFIED
Richter, RudolfUNSPECIFIEDhttps://orcid.org/0000-0002-8499-4780UNSPECIFIED
Fischer, ChristianUNSPECIFIEDhttps://orcid.org/0000-0003-3797-7571UNSPECIFIED
Martinis, SandroUNSPECIFIEDhttps://orcid.org/0000-0002-6400-361XUNSPECIFIED
Schöpfer, ElisabethUNSPECIFIEDhttps://orcid.org/0000-0002-6496-4744UNSPECIFIED
Date:March 2021
Journal or Publication Title:Remote Sensing of Volcanic Processes and Risk
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 19-35
EditorsEmailEditor's ORCID iDORCID Put Code
Cigna, FrancescaItalian Space AgencyUNSPECIFIEDUNSPECIFIED
Tapete, DeodatoItalian Space AgencyUNSPECIFIEDUNSPECIFIED
Lu, ZhongSouthern Methodist UniversityUNSPECIFIEDUNSPECIFIED
Ebmeier, Susanna K.University of LeedsUNSPECIFIEDUNSPECIFIED
Keywords:volcanic thermal anomalies; change detection; Villarrica Volcano; small satellites; FireBIRD; TET-1
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Remote Sensing and Geo Research
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Geo Risks and Civil Security
German Remote Sensing Data Center > Leitungsbereich DFD
Deposited By: Plank, Simon Manuel
Deposited On:25 May 2021 10:05
Last Modified:25 May 2021 10:05

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