Browsing Greinar- HÍ by Author "Höskuldsson, Ármann"

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The 2014 Lake Askja rockslide-induced tsunami: Optimization of numerical tsunami model using observed data

Gylfadottir, Sigridur Sif; Kim, Jihwan; Helgason, Jón Kristinn; Brynjólfsson, Sveinn; Höskuldsson, Ármann; Jóhannesson, Tómas; Harbitz, Carl Bonnevie; Løvholt, Finn (Wiley-Blackwell, 2017-05)

A large rockslide was released from the inner Askja caldera into Lake Askja, Iceland, on 21 July 2014. Upon entering the lake, it caused a large tsunami that traveled about ∼3 km across the lake and inundated the shore with vertical runup measuring up ...
The 2014–2015 Lava Flow Field at Holuhraun, Iceland: Using Airborne Hyperspectral Remote Sensing for Discriminating the Lava Surface

Aufaristama, Muhammad; Höskuldsson, Ármann; Ulfarsson, Magnus; Jónsdóttir, Ingibjörg; Thordarson, Thorvaldur (MDPI AG, 2019-02-26)

The Holuhraun lava flow was the largest effusive eruption in Iceland for 230 years, with an estimated lava bulk volume of ~1.44 km3 and covering an area of ~84 km2. The six month long eruption at Holuhraun 2014–2015 generated a diverse surface environment. ...
Contrasting mechanisms of magma fragmentation during coeval magmatic and hydromagmatic activity: the Hverfjall Fires fissure eruption, Iceland

Liu, E. J.; Cashman, K. V.; Rust, A. C.; Höskuldsson, Ármann (Springer Nature, 2017-09-07)

Growing evidence for significant magmatic vesiculation prior to magma-water interaction (MWI) has brought into question the use of ‘diagnostic’ features, such as low vesicularities and blocky morphologies, to identify hydromagmatic pyroclasts. We address ...
Environmental pressure from the 2014–15 eruption of Bárðarbunga volcano, Iceland

Gíslason, Sigurður Reynir; Stefansdottir, Gerdur; Pfeffer, Melissa; Barsotti, Sara; Jóhannsson, Th.; Galeczka, Iwona Monika; Bali, Eniko; Sigmarsson, Olgeir; Stefansson, Andri; Keller, Nicole Simone; Sigurðsson, Á.; Bergsson, Bergur H.; Galle, B.; Jacobo, V.C; Arellano, S.; Aiuppa, A.; Jónasdóttir, Elín Björk; Eiríksdóttir, E.S.; Jakobsson, Sigurður; Guðfinnsson, Guðmundur; Halldórsson, Sæmundur Ari; Gunnarsson, H.; Haddadi, B.; Jonsdottir, Ingibjorg; Thordarson, Thorvaldur; Riishuus, Morten; Högnadóttir, Thórdís; Dürig, Tobias; Pedersen, Gro; Höskuldsson, Ármann; Gudmundsson, Magnus Tumi (European Association of Geochemistry, 2015)

The effusive six months long 2014-2015 Bárðarbunga eruption (31 August-27 February) was the largest in Iceland for more than 200 years, producing 1.6 ± 0.3 km3 of lava. The total SO2 emission was 11 ± 5 Mt, more than the amount emitted from Europe ...
Lava field evolution and emplacement dynamics of the 2014–2015 basaltic fissure eruption at Holuhraun, Iceland

Pedersen, Gro; Höskuldsson, Ármann; Dürig, Tobias; Thordarson, Thorvaldur; Jonsdottir, Ingibjorg; Riishus, M. S.; Óskarsson, B.V.; Dumont, Stéphanie; Magnússon, Eyjólfur; Gudmundsson, Magnus Tumi; Sigmundsson, Freysteinn; Drouin, V.J.P.B.; Gallagher, C.; Askew, R.; Gudnason, J.; Moreland, William; Nikkola, P.; Reynolds, Hannah Iona; Schmith, Johanne (Elsevier BV, 2017-06)

The 6-month long eruption at Holuhraun (August 2014–February 2015) in the Bárðarbunga-Veiðivötn volcanic system was the largest effusive eruption in Iceland since the 1783–1784 CE Laki eruption. The lava flow field covered ~84 km2 and has an estimated ...
Lava Flow Roughness on the 2014–2015 Lava Flow-Field at Holuhraun, Iceland, Derived from Airborne LiDAR and Photogrammetry

Aufaristama, Muhammad; Höskuldsson, Ármann; Ulfarsson, Magnus; Jónsdóttir, Ingibjörg; Thordarson, Thorvaldur (MDPI AG, 2020-03-31)

Roughness can be used to characterize the morphologies of a lava flow. It can be used to identify lava flow features, provide insight into eruption conditions, and link roughness pattern across a lava flow to emplacement conditions. In this study, we ...
Linking lava flow morphology, water availability and rootless cone formation on the Younger Laxá Lava, NE Iceland

Boreham, Frances; Cashman, Katharine; Rust, Alison; Höskuldsson, Ármann (Elsevier BV, 2018-09)

It is well established that rootless cones and associated deposits are the result of explosive interactions between lava flows and environmental water, but there is substantial uncertainty about the dynamics of rootless eruptions, particularly the ...
Mapping and Assessing Surface Morphology of Holocene Lava Field in Krafla (NE Iceland) Using Hyperspectral Remote Sensing

Aufaristama, Muhammad; Höskuldsson, Ármann; Jonsdottir, Ingibjorg; Ólafsdóttir, Rósa (IOP Publishing, 2016-01-19)

Iceland is well known for its volcanic activity due to its location on the spreading Mid Atlantic Ridge and one of the earth’s hot spot. In the past 1000 years there were about 200 eruptions occurring in Iceland, meaning volcanic eruptions occurred ...
Message in a stainless steel bottle thrown into deep geological time

Lewandowski, M.; Kusiak, M.A.; Michalczyk, Ł.; Szmigiel, D.; Sledziewska-Gojska, E.; Barzycka, B.; Wawrzyniak, T.; Luks, B.; Thordarson, Thorvaldur; Wilde, S.A.; Höskuldsson, Ármann (Elsevier BV, 2017-12)

In the 60th year after the placing of the corner stone under the Polish Polar Station at Hornsund (PPSH; Spitsbergen, Svalbard, Norway), a new capsule has been laid down in the vicinity of the PPSH. It is made of stainless steel, and includes five ...
New Insights for Detecting and Deriving Thermal Properties of Lava Flow Using Infrared Satellite during 2014–2015 Effusive Eruption at Holuhraun, Iceland

Aufaristama, Muhammad; Höskuldsson, Ármann; Jónsdóttir, Ingibjörg; Ulfarsson, Magnus; Thordarson, Thorvaldur (MDPI AG, 2018-01-20)

A new lava field was formed at Holuhraun in the Icelandic Highlands, north of Vatnajökull glacier, in 2014–2015. It was the largest effusive eruption in Iceland for 230 years, with an estimated lava bulk volume of ~1.44 km3 covering an area of ~84 km2. ...
Remote sensing of surface Hydrothermal Alteration, identification of Minerals and Thermal anomalies at Sveifluháls-Krýsuvík high-temperature Geothermal field, SW Iceland

Ramírez-González, Lucía Magali; Aufaristama, Muhammad; Jónsdóttir, Ingibjörg; Höskuldsson, Ármann; Thordarson, Thorvaldur; Proietti, Nicolas Marino; Kraft, Gilles; McQuilkin, Jamie (IOP Publishing, 2019-04-29)

This study used optical remote sensors to identify surface hydrothermal alteration and thermal anomalies in Krýsuvík geothermal field. Multispectral Landsat and ASTER satellite images were used to identify hydrothermal alteration minerals and thermal ...
Satellite detection, long-range transport, and air quality impacts of volcanic sulfur dioxide from the 2014-2015 flood lava eruption at Bárðarbunga (Iceland)

Schmidt, Anja; Leadbetter, Susan; Theys, Nicolas; Carboni, Elisa; Witham, Claire S.; Stevenson, John A.; Birch, Cathryn E.; Thordarson, Thorvaldur; Turnock, Steven; Barsotti, Sara; Delaney, Lin; Feng, Wuhu; Grainger, Roy G.; Hort, Matthew C.; Höskuldsson, Ármann; Ialongo, Iolanda; Ilyinskaya, Evgenia; Jóhannsson, Þorsteinn; Kenny, Patrick; Mather, Tamsin A.; Richards, Nigel A. D.; Shepherd, Janet (Wiley-Blackwell, 2015-09-23)

The 2014–2015 Bárðarbunga-Veiðivötn fissure eruption at Holuhraun produced about 1.5 km3 of lava, making it the largest eruption in Iceland in more than 200 years. Over the course of the eruption, daily volcanic sulfur dioxide (SO2) emissions exceeded ...
Thermal model of lava in Mt. Agung during December 2017 episodes derived from Integrated SENTINEL 2A and ASTER remote sensing datasets

Aufaristama, Muhammad; Höskuldsson, Ármann; Jónsdóttir, Ingibjörg; Ulfarsson, Magnus; Erlangga, I G D; Thordarson, Thorvaldur (IOP Publishing, 2019-08-14)

In the beginning of December 2017, Mt. Agung eruption powered down to minor ash emissions and on the middle of December, aerial photographs of the crater were taken by Indonesia Centre of Volcanology and Geological Hazard Mitigation (PVMBG) showing a ...

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Browsing Greinar- HÍ by Author "Höskuldsson, Ármann"

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