Opin vísindi

Browsing by Subject "Volcanic eruption"

Browsing by Subject "Volcanic eruption"

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    The chemical composition of rivers and snow affected by the 2014/2015 Bárðarbunga eruption, Iceland 
    Galeczka, Iwona; Sigurdsson, Gunnar; Eiriksdottir, Eydis Salome; Oelkers, Eric H.; Gíslason, Sigurður Reynir (Elsevier BV, 2016-04)
    The 2014/15 Bárðarbunga volcanic eruption was the largest in Iceland for more than 200 years. This eruption released into the atmosphere on average 60,000 tonnes/day of SO2, 30,000 tonnes/day of CO2, and 500 tonnes/day of HCl affecting the chemical ...
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    Design of the subsurface observatory at Surtsey volcano, Iceland 
    Türke, Andreas; Jackson, Marie D.; Bach, Wolfgang; Kahl, Wolf-Achim; Grzybowski, Brian; Marshall, Beau; Gudmundsson, Magnus Tumi; Jørgensen, Steffen Leth (Copernicus GmbH, 2019-06-12)
    Surtsey, the youngest of the islands of Vestmannaeyjar, is an oceanic volcano created by explosive basaltic eruptions during 1963-1967 off the southern coast of Iceland. The subsurface deposits of the volcano were first sampled by a cored borehole in ...
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    The effect of the 2014-15 Bárðarbunga volcanic eruption on chemical denudation rates and the CO2 budget 
    Galeczka, Iwona; Oelkers, Eric H.; Gíslason, Sigurður Reynir (Elsevier BV, 2018-07)
    Chemical denudation rates during the 2014–15 Bárðarbunga eruption, calculated using river chemical fluxes, increased substantially confirming that volcanic activity and its products such as fresh lava, and acidic volatiles accelerates these rates. ...
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    Evaluation of MODIS Albedo Product over Ice Caps in Iceland and Impact of Volcanic Eruptions on Their Albedo 
    Gascoin, Simon; Guðmundsson, Sverrir; Adalgeirsdottir, Gudfinna; Pálsson, Finnur; Schmidt, Louise; Berthier, Etienne; Björnsson, Helgi (MDPI AG, 2017-04-25)
    Albedo is a key variable in the response of glaciers to climate. In Iceland, large albedo variations of the ice caps may be caused by the deposition of volcanic ash (tephra). Sparse in situ measurements are insufficient to characterize the spatial ...
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    Measuring the degree of “nanotilization” of volcanic glasses: Understanding syn-eruptive processes recorded in melt inclusions 
    Di Genova, Danilo; Caracciolo, Alberto; Kolzenburg, Stephan (Elsevier BV, 2018-10)
    Iron and water content substantially affect the physical properties of natural silicate melts and may, therefore, influence magmatic and volcanic processes such as crystallization, degassing, flow behaviour and eruptive style. Here we present Raman ...
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    Severe volcanic SO2 exposure and respiratory morbidity in the Icelandic population – a register study 
    Carlsen, Hanne Krage; Valdimarsdóttir, Unnur Anna; Briem, Haraldur; Dominici, Francesca; Finnbjörnsdóttir, Ragnhildur Guðrún; Jóhannsson, Þorsteinn; Aspelund, Thor; Gíslason, Þórarinn; Guðnason, Þórólfur (2021-02-27)
    BACKGROUND: The Holuhraun volcanic eruption September 2014 to February 2015 emitted large amounts of sulfur dioxide (SO 2). The aim of this study was to determine the association between volcanic SO 2 gases on general population respiratory health some ...
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    Unexpected large eruptions from buoyant magma bodies within viscoelastic crust 
    Sigmundsson, Freysteinn; Pinel, Virginie; Grapenthin, Ronni; Hooper, Andrew; Halldórsson, Sæmundur Ari; Einarsson, Páll; Ófeigsson, Benedikt G.; Heimisson, Elias; Jónsdóttir, Kristín; Gudmundsson, Magnus Tumi; Vogfjörð, Kristín; Parks, Michelle; Li, Siqi; Drouin, Vincent; Geirsson, Halldor; Dumont, Stéphanie; Friðriksdóttir, Hildur M.; Guðmundsson, Gunnar B.; Wright, Tim J.; Yamasaki, Tadashi (Springer Science and Business Media LLC, 2020-05-15)
    Large volume effusive eruptions with relatively minor observed precursory signals are at odds with widely used models to interpret volcano deformation. Here we propose a new modelling framework that resolves this discrepancy by accounting for magma ...