The eruption in Holuhraun, NE Iceland 2014-2015: Real-time monitoring and influence of landscape on lava flow
The largest eruption in Iceland since the Laki 1783-84 event began in Holuhraun, NE Iceland, on 31 August 2014, producing a lava flow field which, by the end of the eruption on February 27th 2015, covered 84,5 km2 with volume of 1,44 km3. Throughout the event, various satellite images (NOAA AVHRR, M...
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ftcsic:oai:digital.csic.es:10261/150364 2024-02-11T10:05:04+01:00 The eruption in Holuhraun, NE Iceland 2014-2015: Real-time monitoring and influence of landscape on lava flow Jónsdóttir, I. Bartolini, Stefania Becerril, Laura Martí Molist, Joan 2016-04-17 http://hdl.handle.net/10261/150364 unknown European Geosciences Union Publisher's version Sí Geophysical Research Abstracts Vol. 18: EGU2016-11031-1 (2016) http://hdl.handle.net/10261/150364 open comunicación de congreso http://purl.org/coar/resource_type/c_5794 2016 ftcsic 2024-01-16T10:23:29Z The largest eruption in Iceland since the Laki 1783-84 event began in Holuhraun, NE Iceland, on 31 August 2014, producing a lava flow field which, by the end of the eruption on February 27th 2015, covered 84,5 km2 with volume of 1,44 km3. Throughout the event, various satellite images (NOAA AVHRR, MODIS, SUOMI NPP VIIRS, ASTER, LANDSAT7&8, EO-1 ALI & HYPERION, RADARSAT-2, SENTINEL-1, COSMO SKYMED, TERRASAR X) were analysed to monitor the development of activity, identify active flow fronts and channels, and map the lava extent in close collaboration with the on-site field group. Aerial photographs and radar images from the Icelandic Coast Guard Dash 8 aircraft supported this effort. By the end of 2015, Loftmyndir ehf had produced a detailed 3D model of the lava using aerial photographs from 2013 and 2015. The importance of carrying out real-time monitoring of a volcanic eruption is: i) to locate sites of elevated temperature that may be registering new areas of activity within the lava or opening of vents or fissures. ii) To establish and verify timing of events at the vents and within the lava. iii) To identify potential volcanic hazard that can be caused by lava movements, eruption-induced flash flooding, tephra fallout or gas pollution. iv) to provide up-to-date regional information to field groups concerning safety as well as to locate sites for sampling lava, tephra and polluted water. v) to produce quantitative information on magma discharge and lava flow advance, map the lava extent, document the flow morphology and plume/tephra dispersal. During the eruption, these efforts supported mapping of the extent of the lava every 3-4 days on average underpinning the time series of magma discharge calculations. Digitial elevation models from before and after the event, combined with the real-time data series, supports detailed analysis of how landscape affects lava flow in a flat terrain (<0,4◦), and provides important input to further developing lava flow models within the EU VETOOLS project, aiming ... Conference Object Iceland Digital.CSIC (Spanish National Research Council) Holuhraun ENVELOPE(-16.831,-16.831,64.852,64.852) Hyperion ENVELOPE(-68.917,-68.917,-72.033,-72.033) Laki ENVELOPE(-18.237,-18.237,64.070,64.070) |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
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ftcsic |
language |
unknown |
description |
The largest eruption in Iceland since the Laki 1783-84 event began in Holuhraun, NE Iceland, on 31 August 2014, producing a lava flow field which, by the end of the eruption on February 27th 2015, covered 84,5 km2 with volume of 1,44 km3. Throughout the event, various satellite images (NOAA AVHRR, MODIS, SUOMI NPP VIIRS, ASTER, LANDSAT7&8, EO-1 ALI & HYPERION, RADARSAT-2, SENTINEL-1, COSMO SKYMED, TERRASAR X) were analysed to monitor the development of activity, identify active flow fronts and channels, and map the lava extent in close collaboration with the on-site field group. Aerial photographs and radar images from the Icelandic Coast Guard Dash 8 aircraft supported this effort. By the end of 2015, Loftmyndir ehf had produced a detailed 3D model of the lava using aerial photographs from 2013 and 2015. The importance of carrying out real-time monitoring of a volcanic eruption is: i) to locate sites of elevated temperature that may be registering new areas of activity within the lava or opening of vents or fissures. ii) To establish and verify timing of events at the vents and within the lava. iii) To identify potential volcanic hazard that can be caused by lava movements, eruption-induced flash flooding, tephra fallout or gas pollution. iv) to provide up-to-date regional information to field groups concerning safety as well as to locate sites for sampling lava, tephra and polluted water. v) to produce quantitative information on magma discharge and lava flow advance, map the lava extent, document the flow morphology and plume/tephra dispersal. During the eruption, these efforts supported mapping of the extent of the lava every 3-4 days on average underpinning the time series of magma discharge calculations. Digitial elevation models from before and after the event, combined with the real-time data series, supports detailed analysis of how landscape affects lava flow in a flat terrain (<0,4◦), and provides important input to further developing lava flow models within the EU VETOOLS project, aiming ... |
format |
Conference Object |
author |
Jónsdóttir, I. Bartolini, Stefania Becerril, Laura Martí Molist, Joan |
spellingShingle |
Jónsdóttir, I. Bartolini, Stefania Becerril, Laura Martí Molist, Joan The eruption in Holuhraun, NE Iceland 2014-2015: Real-time monitoring and influence of landscape on lava flow |
author_facet |
Jónsdóttir, I. Bartolini, Stefania Becerril, Laura Martí Molist, Joan |
author_sort |
Jónsdóttir, I. |
title |
The eruption in Holuhraun, NE Iceland 2014-2015: Real-time monitoring and influence of landscape on lava flow |
title_short |
The eruption in Holuhraun, NE Iceland 2014-2015: Real-time monitoring and influence of landscape on lava flow |
title_full |
The eruption in Holuhraun, NE Iceland 2014-2015: Real-time monitoring and influence of landscape on lava flow |
title_fullStr |
The eruption in Holuhraun, NE Iceland 2014-2015: Real-time monitoring and influence of landscape on lava flow |
title_full_unstemmed |
The eruption in Holuhraun, NE Iceland 2014-2015: Real-time monitoring and influence of landscape on lava flow |
title_sort |
eruption in holuhraun, ne iceland 2014-2015: real-time monitoring and influence of landscape on lava flow |
publisher |
European Geosciences Union |
publishDate |
2016 |
url |
http://hdl.handle.net/10261/150364 |
long_lat |
ENVELOPE(-16.831,-16.831,64.852,64.852) ENVELOPE(-68.917,-68.917,-72.033,-72.033) ENVELOPE(-18.237,-18.237,64.070,64.070) |
geographic |
Holuhraun Hyperion Laki |
geographic_facet |
Holuhraun Hyperion Laki |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
Publisher's version Sí Geophysical Research Abstracts Vol. 18: EGU2016-11031-1 (2016) http://hdl.handle.net/10261/150364 |
op_rights |
open |
_version_ |
1790601912049991680 |