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Fletta eftir höfundi "Helgason, Jón Kristinn"

Fletta eftir höfundi "Helgason, Jón Kristinn"

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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 ...
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    Assessment of Landslide-Induced Geomorphological Changes in Hítardalur Valley, Iceland, Using Sentinel-1 and Sentinel-2 Data 
    Dabiri, Zahra; Hölbling, Daniel; Abad, Lorena; Helgason, Jón Kristinn; Saemundsson, Thorsteinn; Tiede, Dirk (MDPI AG, 2020-08-24)
    Landslide mapping and analysis are essential aspects of hazard and risk analysis. Landslides can block rivers and create landslide-dammed lakes, which pose a significant risk for downstream areas. In this research, we used an object-based image analysis ...
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    Molards as an indicator of permafrost degradation and landslide processes 
    Morino, Costanza; Conway, Susan J.; Saemundsson, Thorsteinn; Helgason, Jón Kristinn; Hillier, John; Butcher, Frances E.G.; Balme, Matthew R.; Jordan, Colm; Argles, Tom (Elsevier BV, 2019-06-15)
    Molards have been defined in the past as conical mounds of debris that can form part of a landslide's deposits. We present the first conclusive evidence that molards in permafrost terrains are cones of loose debris that result from thawing of frozen ...