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Browsing by Subject "Fjarkönnun"

Browsing by Subject "Fjarkönnun"

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  • Pedersen, Gro; Belart, Joaquín M. C.; Magnússon, Eyjólfur; Vilmundardóttir, Olga Kolbrún; Kizel, Fadi; Sigurmundsson, Friðþór Sófus; Gísladóttir, Guðrún; Benediktsson, Jon Atli (American Geophysical Union (AGU), 2018-02-22)
    Lava flow thicknesses, volumes, and effusion rates provide essential information for understanding the behavior of eruptions and their associated deformation signals. Preeruption and posteruption elevation models were generated from historical stereo ...
  • Pedersen, Gro; Montalvo, Jorge; Einarsson, Páll; Vilmundardóttir, Olga Kolbrún; Sigurmundsson, Friðþór Sófus; Belart, Joaquín M. C.; Hjartardottir, Asta Rut; Kizel, Fadi; Rustowicz, Rose; Falco, Nicola; Gísladóttir, Guðrún; Benediktsson, Jon Atli (Iceland Glaciological Society and Geoscience Society of IcelandJöklarannsóknafélags Íslands og Jarðfræðafélags Íslands, 2018)
    Hekla volcano is known to have erupted at least 23 times in historical time (last 1100 years); often producing mixed eruptions of tephra and lava. The lava flow volumes from the 20th century have amounted 80% to almost 100% of the entire erupted ...
  • Pálsson, Frosti (University of Iceland, School of Engineering and Natural Sciences, Faculty of Electrical and Computer Engineering, 2017-09)
    In remote sensing, acquired optical images of high spectral resolution have usually a lower spatial resolution than images of lower spectral resolution. This is due to physical, cost and complexity constraints. To make the most of the available imagery, ...
  • Lv, Zhiyong; Liu, Tongfei; Zhang, Penglin; Benediktsson, Jon Atli; Chen, Yixiang (MDPI AG, 2018-06-08)
    Land cover change detection (LCCD) based on bi-temporal remote sensing images plays an important role in the inventory of land cover change. Due to the benefit of having spatial dependency properties within the image space while using remote sensing ...
  • 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 ...
  • 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. ...
  • Lv, Zhiyong; Liu, Tongfei; Wan, Yiliang; Benediktsson, Jon Atli; Zhang, Xiaokang (MDPI AG, 2018-03-17)
    In recent decades, land cover change detection (LCCD) using very high-spatial resolution (VHR) remote sensing images has been a major research topic. However, VHR remote sensing images usually lead to a large amount of noises in spectra, thereby reducing ...
  • Lv, ZhiYong; Shi, WenZhong; Zhou, XiaoCheng; Benediktsson, Jon Atli (MDPI AG, 2017-10-31)
    Change detection is an increasingly important research topic in remote sensing application. Previous studies achieved land cover change detection (LCCD) using bi-temporal remote sensing images. However, many widely used methods detected change depending ...