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Volcanic activity at Bárðarbunga, Iceland, monitored with TerraSAR-X and TanDEM-X data

Jaenicke, Julia and Münzer, Ulrich and Minet, Christian and Eineder, Michael and Braun, Ludwig and Siegert, Florian and Gudmundsson, Agust (2016) Volcanic activity at Bárðarbunga, Iceland, monitored with TerraSAR-X and TanDEM-X data. TerraSAR-X / TanDEM-X Science Team Meeting, 17.-20. Okt. 2016, Weßling, Deutschland.

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Abstract

The central volcano Bárðarbunga, with a 65 km² large caldera, is located on the northwestern edge of Vatnajökull ice cap. It is connected with a 190 km long, from southwest to northeast running fissure system within the Neovolcanic Zone of Iceland. The subglacial volcano reaches a height of 2009 m a.s.l. and is covered with an up to 850 m thick ice layer. On 16 August 2014 high seismic activity had started in the area of Bárðarbunga and lasted until the end of February 2015. Three geothermal/tectonic events occurred and could be monitored continuously with TerraSAR-X and TanDEM-X radar data within the project IsViews (Iceland subglacial Volcanoes interdisciplinary early warning system). The development of a six months lasting fissure eruption in the Holuhraun glacier forefield, located 40 km northeast of Bárðarbunga, was observed with near real-time TerraSAR-X Stripmap data and TanDEM-X RawDEMs. The maximum extend of the lava field was measured to 84.5 km² and the volume to 1.48 km³. A subsidence of the ice masses within the Bárðarbunga caldera of up to 64 m occurred and was monitored with a time series of TanDEM-X data. The surficial loss of ice is calculated to 1.64 km³ and can be explained by a lowering of the magma chamber, triggered by the Holuhraun eruption. By means of TanDEM-X image differencing an 18 km long and 800 m wide fracture zone, extending from the Holuhraun eruption site towards Bárðarbunga, could be detected in a unique way. The TanDEM-X data reveals the fracture even underneath the glacier. The project research demonstrates that by means of high resolution TerraSAR-X and TanDEM-X data, it is possible to extensively monitor volcanic activity in Iceland and to assess the risk of a possible eruption.

Item URL in elib:https://elib.dlr.de/107565/
Document Type:Conference or Workshop Item (Poster)
Title:Volcanic activity at Bárðarbunga, Iceland, monitored with TerraSAR-X and TanDEM-X data
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Jaenicke, JuliaLMU MünchenUNSPECIFIED
Münzer, UlrichLMU MünchenUNSPECIFIED
Minet, ChristianChristian.Minet (at) dlr.deUNSPECIFIED
Eineder, MichaelMichael.Eineder (at) dlr.deUNSPECIFIED
Braun, LudwigBay. Akademie der WissenschaftenUNSPECIFIED
Siegert, FlorianRSS – Remote Sensing Solutions GmbH; Wörthstr. 42; 85570 MünchenUNSPECIFIED
Gudmundsson, AgustFjarkönnun ehf.UNSPECIFIED
Date:October 2016
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Remote Sensing, Iceland, volcano, TerraSAR-X, TanDEM-X
Event Title:TerraSAR-X / TanDEM-X Science Team Meeting
Event Location:Weßling, Deutschland
Event Type:international Conference
Event Dates:17.-20. Okt. 2016
Organizer:DLR
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 - Vorhaben hochauflösende Fernerkundungsverfahren
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Minet, Christian
Deposited On:16 Nov 2016 14:00
Last Modified:31 Jul 2019 20:04

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