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Monitoring of active volcanoes by means of multi-sensor remote sensing – a case study of the 2014/15 Holuhraun fissure eruption

Plank, Simon and Hedelt, Pascal and Paproth, Carsten and Fischer, Christian and Kerr, Gregoire and Twele, André and Martinis, Sandro (2016) Monitoring of active volcanoes by means of multi-sensor remote sensing – a case study of the 2014/15 Holuhraun fissure eruption. The 2nd Workshop on the Physics of Volcanoes, 2016-03-04, Mainz, Deutschland.

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The Holuhraun fissure eruption in 2014/15 is one of the largest volcanic events in modern Icelandic history. The fissure eruption is a dike intrusion that originated from the Bardarbunga Volcano. In this contribution a combined analysis of multi-sensor remote sensing data monitoring this large volcanic eruption is presented. SO2 and BrO total columns are retrieved from the ultraviolet spectrometer GOME-2 onboard the polar satellites MetOp-A and -B. The sensor measures Earthshine reflectances from nadir-view scans on a daily basis. The atmospheric trace gas retrieval is operationally performed in near-real time (i.e. within 2 hours after measurement) based on the differential optical absorption spectroscopy (DOAS) method in the UV wavelength range. BrO and especially SO2 emissions showed a strong increase when the fissure first erupted in late August 2014. The comparison with Earth Observation satellite imagery of higher spatial resolution showed a strong correlation between the area covered by lava and the amount of SO2 emission. A time series of synthetic aperture radar (SAR) imagery acquired by Sentinel-1 and TerraSAR-X as well as a dataset of Landsat-8 daytime acquisitions was used to monitor the temporal evolution of the lava extent. In addition, very high spatial resolution optical imagery of WorldView-2 and -3 were used for very detailed investigations of the spatio-temporal evolution of the lava extent. Monitoring the hot spot development, datasets of the MODIS fire product have been used and nighttime acquisitions of Landsat-8 as well as imagery of the first satellite of DLR’s FireBIRD mission (TET-1 – Technology Experiment Carrier) were exploited to measure the temperature of the lava over time. The mid-wave infrared channel of TET is ideal for the detection of high temperature events. By additionally interpreting the long-wave infrared channel of TET, it is possible to estimate the kinetic temperature and area of high temperature events simultaneously.

Item URL in elib:https://elib.dlr.de/103310/
Document Type:Conference or Workshop Item (Speech)
Title:Monitoring of active volcanoes by means of multi-sensor remote sensing – a case study of the 2014/15 Holuhraun fissure eruption
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Plank, SimonUNSPECIFIEDhttps://orcid.org/0000-0002-5793-052XUNSPECIFIED
Hedelt, PascalUNSPECIFIEDhttps://orcid.org/0000-0002-1752-0040UNSPECIFIED
Twele, AndréUNSPECIFIEDhttps://orcid.org/0000-0002-8035-2625UNSPECIFIED
Date:4 March 2016
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Volcano, Monitoring, Remote Sensing, TET, GOME-2, SAR
Event Title:The 2nd Workshop on the Physics of Volcanoes
Event Location:Mainz, Deutschland
Event Type:Workshop
Event Date:4 March 2016
Organizer:Universität Mainz, Universität Heidelberg, Max-Planck Institut für Chemie (Mainz)
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 - Vorhaben Zivile Kriseninformation und Georisiken (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Geo Risks and Civil Security
German Remote Sensing Data Center > Land Surface
Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Plank, Simon Manuel
Deposited On:07 Mar 2016 09:40
Last Modified:24 Apr 2024 20:08

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