Plank, Simon und Hedelt, Pascal und Paproth, Carsten und Fischer, Christian und Kerr, Gregoire und Twele, André und 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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Kurzfassung
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.
elib-URL des Eintrags: | https://elib.dlr.de/103310/ | ||||||||||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||||||||||
Titel: | Monitoring of active volcanoes by means of multi-sensor remote sensing – a case study of the 2014/15 Holuhraun fissure eruption | ||||||||||||||||||||||||||||||||
Autoren: |
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Datum: | 4 März 2016 | ||||||||||||||||||||||||||||||||
Referierte Publikation: | Nein | ||||||||||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||||||
Stichwörter: | Volcano, Monitoring, Remote Sensing, TET, GOME-2, SAR | ||||||||||||||||||||||||||||||||
Veranstaltungstitel: | The 2nd Workshop on the Physics of Volcanoes | ||||||||||||||||||||||||||||||||
Veranstaltungsort: | Mainz, Deutschland | ||||||||||||||||||||||||||||||||
Veranstaltungsart: | Workshop | ||||||||||||||||||||||||||||||||
Veranstaltungsdatum: | 4 März 2016 | ||||||||||||||||||||||||||||||||
Veranstalter : | Universität Mainz, Universität Heidelberg, Max-Planck Institut für Chemie (Mainz) | ||||||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||||||||||||||||||
HGF - Programmthema: | Erdbeobachtung | ||||||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | R EO - Erdbeobachtung | ||||||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Vorhaben Zivile Kriseninformation und Georisiken (alt) | ||||||||||||||||||||||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||||||||||||||||||||||
Institute & Einrichtungen: | Deutsches Fernerkundungsdatenzentrum > Georisiken und zivile Sicherheit Deutsches Fernerkundungsdatenzentrum > Landoberfläche Institut für Methodik der Fernerkundung > Atmosphärenprozessoren | ||||||||||||||||||||||||||||||||
Hinterlegt von: | Plank, Simon Manuel | ||||||||||||||||||||||||||||||||
Hinterlegt am: | 07 Mär 2016 09:40 | ||||||||||||||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:08 |
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