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Space-based monitoring of the 2015 eruption of Villarrica Volcano, Chile

Plank, Simon Manuel and Martinis, Sandro (2019) Space-based monitoring of the 2015 eruption of Villarrica Volcano, Chile. Physics of Volcanoes 2019, 28. Feb. - 01 März 2019, Mendig, Deutschland.

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Many volcanoes in the world are located in remote areas, which are in most cases not accessible during volcanic eruptions. Satellite-based Earth Observation (EO) provides a non-restrictive global monitoring of all sub-aerial volcanoes. As a case study, we will present the analysis of the 3 March 2015 eruption of Villarrica Volcano, Chile. This eruption was investigated based on a time series analysis of thermal data acquired by the small experimental German Aerospace Center (DLR) satellite Technology Experiment Carrier-1 (TET-1). We will present a newly developed workflow for an atmospheric correction of the thermal satellite imagery and an analysis of the detected thermal hotspots at sub-pixel level, including their temperature, area coverage, and radiant power. The detected thermal anomalies were compared with observations derived from Moderate Resolution Imaging Spectroradiometer (MODIS) and Visible Infrared Imaging Radiometer Suite (VIIRS) data. Nine days before the eruption thermal hotspots were detected. 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. Moreover, the eruption-related ash coverage of the glacier at Villarrica Volcano was investigated by TET-1 imagery.

Item URL in elib:https://elib.dlr.de/126960/
Document Type:Conference or Workshop Item (Speech)
Title:Space-based monitoring of the 2015 eruption of Villarrica Volcano, Chile
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Plank, Simon ManuelSimon.Plank (at) dlr.dehttps://orcid.org/0000-0002-5793-052X
Martinis, Sandrosandro.martinis (at) dlr.dehttps://orcid.org/0000-0002-6400-361X
Date:28 February 2019
Refereed publication:No
Open Access:No
In ISI Web of Science:No
Keywords:Volcano Monitoring, FireBIRD, TET-1, Villarrica Volcano
Event Title:Physics of Volcanoes 2019
Event Location:Mendig, Deutschland
Event Type:Workshop
Event Dates:28. Feb. - 01 März 2019
Organizer:Deutsche Vulkanologische Gesellschaft (DVG) Mendig und Universität Duisburg-Essen
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 - Remote sensing and geoscience
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Geo Risks and Civil Security
Deposited By: Plank, Simon Manuel
Deposited On:08 Apr 2019 12:17
Last Modified:08 Apr 2019 12:17

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