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Fletta eftir deild "Jarðvísindadeild (HÍ)"

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  • Nedelciu, Claudiu (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2021-02)
    Phosphorus is an essential yet irreplaceable macronutrient for agriculture and thus plays a key role in global food security. Most of the phosphate fertilizers are produced from phosphate rock, a finite mineral resource that is mined and processed at ...
  • Li, Siqi (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2022-12)
    Post-eruptive deformation following volcanic eruptions may originate from continued magma movements, or reflect delayed and continued Earth adjustment due to co-eruptive events, often referred to as viscoelastic relaxation. Post-eruptive deformation ...
  • Gopalan, Giri; Hrafnkelsson, Birgir; Wikle, Christopher K.; Rue, Håvard; Adalgeirsdottir, Gudfinna; Jarosch, Alexander H.; Pálsson, Finnur (Springer Science and Business Media LLC, 2019-06-12)
    In this paper, we extend and analyze a Bayesian hierarchical spatiotemporal model for physical systems. A novelty is to model the discrepancy between the output of a computer simulator for a physical process and the actual process values with a ...
  • Kjellman, Sofia E.; Schomacker, Anders; Thomas, Elizabeth K.; Håkansson, Lena; Duboscq, Sandrine; Cluett, Allison A.; Farnsworth, Wesley; Allaart, Lis; Cowling, Owen C.; McKay, Nicholas P.; Brynjólfsson, Skafti; Ingolfsson, Olafur (Elsevier BV, 2020-07-15)
    Arctic precipitation is predicted to increase in the coming century, due to a combination of enhanced northward atmospheric moisture transport and local surface evaporation from ice-free seas. However, large model uncertainties, limited long-term ...
  • Aichner, Bernhard; Makhmudov, Zafar; Rajabov, Ilhomjon; Zhang, Qiong; Pausata, Francesco S. R.; Werner, Martin; Heinecke, Liv; Kuessner, Marie L.; Feakins, Sarah J.; Sachse, Dirk; Mischke, Steffen (American Geophysical Union (AGU), 2019-12-03)
    The Central Asian Pamir Mountains (Pamirs) are a high-altitude region sensitive to climatic change, with only few paleoclimatic records available. To examine the glacial-interglacial hydrological changes in the region, we analyzed the geochemical ...
  • Wittmann, Monika (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2017-01)
    Located on the mid-Atlantic ridge, Iceland has the largest volcaniclastic desert on Earth, created by glacio-fluvial processes and frequent volcanic eruptions. Due to its location along the North Atlantic Storm track, Iceland frequently experiences ...
  • Blischke, Anett (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2020-05-15)
    This study focused on the tectono-magmatic reconstruction of the Jan Mayen microcontinent (JMMC) and Iceland Plateau Rift (IPR) in context to the breakup and opening processes of the Northeast Atlantic region. Joint interpretation of densely spaced ...
  • 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 ...
  • 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 ...
  • Råberg, Jonathan Henrik (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2022)
    As high latitude regions continue a decades-long trend of warming at roughly twice the rate of the global average, an understanding of their climatic histories becomes increasing important for predicting their future. Organic molecular proxies preserved ...
  • Guðnason, Jónas (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2017-07-12)
    Iceland is one of the most volcanically active terrestrial regions on Earth. Hazards posed from volcanic eruptions to local population and life stock is well known in Iceland and the wider effects from volcanic activity have been elevated in recent ...
  • Pankhurst, Matthew J.; Morgan, Daniel J.; Thordarson, Thorvaldur; Loughlin, Sue C. (Elsevier BV, 2018-07)
    How a volcano has behaved throughout its past is a guide to its future behaviour. Detailed knowledge of what preceded eruptions from specific volcanoes, and how this can be recognised in real-time, are pivotal questions of this field. Here, the physical ...
  • MIBEI, GEOFFREY (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2021-10)
    In this study, the magmatic evolution and the eruptive history of the Paka volcanic complex are investigated and its geothermal reservoir is assessed. The study comprises two parts. The first part deals with the eruptive history, magma evolution, and ...
  • Rasmussen, Maja Bar (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2021-01)
    The extent of compositional and lithological heterogeneity in Earth’s convecting mantle, caused by the recycling of oceanic and continental lithosphere, has long been a subject of interest to geochemists and geophysicists. A fundamental outstanding ...
  • Belart, Joaquín M. C. (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2018-11-29)
    The mass balance of a glacier is strongly connected to climate. At high latitudes, mass balance is typically controlled by snow accumulation during the winter and the glacier ablation during the summer. In Iceland, direct mass balance observations ...
  • 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 ...
  • Webert, Kyle C.; Herren, Cristina M.; Einarsson, Árni; Bartrons, Mireia; Hauptfleisch, Ulf; Ives, Anthony R. (Wiley-Blackwell, 2017-02)
    The importance of environmental disturbances as drivers of ecological communities depends not only on the magnitude of the disturbance, but also on the disturbance-specific sensitivity of the community. Organisms that alter the physical structure of ...
  • Zielhofer, Christoph; von Suchodoletz, Hans; Fletcher, William J.; Schneider, Birgit; Dietze, Elisabeth; Schlegel, Michael; Schepanski, Kerstin; Weninger, Bernhard; Mischke, Steffen; Mikdad, Abdeslam (Elsevier BV, 2017-09)
    The Sahara is the world's largest dust source with significant impacts on trans-Atlantic terrestrial and large-scale marine ecosystems. Contested views about a gradual or abrupt onset of Saharan aridity at the end of the African Humid Period dominate ...
  • Snæbjörnsdóttir, Sandra Ósk (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2017-04-19)
    In-situ carbonation of basaltic rocks could provide a carbon storage solution for the long term. Permanence is essential for the success and public acceptance of carbon storage. The aim of this study was twofold, to evaluate and make a first estimate ...
  • Clark, Deirdre (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2019-10-23)
    The reduction of carbon dioxide (CO2) emissions in the atmosphere is currently one of the main challenges facing humanity. One solution is carbon capture from concentrated sources and directly from the atmosphere, and long term storage in rocks. Basaltic ...