Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Thórdís Högnadóttir"'
Autor:
Stéphanie Dumont, Freysteinn Sigmundsson, Michelle M. Parks, Vincent J. P. Drouin, Gro B. M. Pedersen, Ingibjörg Jónsdóttir, Ármann Höskuldsson, Andrew Hooper, Karsten Spaans, Marco Bagnardi, Magnús T. Gudmundsson, Sara Barsotti, Kristín Jónsdóttir, Thórdís Högnadóttir, Eyjólfur Magnússon, Ásta R. Hjartardóttir, Tobias Dürig, Cristian Rossi, Björn Oddsson
Publikováno v:
Frontiers in Earth Science, Vol 6 (2018)
We report how data from satellite and aerial synthetic aperture radar (SAR) observations were integrated into monitoring of the 2014–2015 Holuhraun eruption in the Bárðarbunga volcanic system, the largest effusive eruption in Iceland since the 17
Externí odkaz:
https://doaj.org/article/e88c171b840647929982fe24e1a41190
Autor:
Jørgen Dall, Thórdís Högnadóttir, Magnús Tumi Gudmundsson, Finnur Pálsson, Etienne Berthier, Eyjólfur Magnússon, Helgi Björnsson, Sverrir Gudmundsson
Publikováno v:
Polar Research, Vol 30, Iss 0, Pp 1-11 (2011)
We assess the volume change and mass balance of three ice caps in southern Iceland for two periods, 1979–1984 to 1998 and 1998 to 2004, by comparing digital elevation models (DEMs). The ice caps are Eyjafjallajökull (ca. 81 km2), Tindfjallajökull
Externí odkaz:
https://doaj.org/article/04665a4770f74f37ab2d3b383e7733a4
Autor:
Thórdís Högnadóttir, Benedikt G. Ófeigsson, Cristian Rossi, Finnur Pálsson, Eyjólfur Magnússon, Thorsteinn Thorsteinsson, Erik Sturkell, Tómas Jóhannesson, Magnús T. Gudmundsson
Publikováno v:
The Cryosphere, Vol 15, Pp 3731-3749 (2021)
We present repeated radio-echo sounding (RES, 5 MHz) on a profile grid over the Eastern Skaftá Cauldron (ESC) in Vatnajökull ice cap, Iceland. The ESC is ~3 km wide and 50–150 m deep ice cauldron created and maintained by subglacial geother
Autor:
Gro B. M. Pedersen, Joaquin M. C. Belart, Birgir Vilhelm Óskarsson, Magnús Tumi Gudmundsson, Nils Gies, Thórdís Högnadóttir, Ásta Rut Hjartardóttir, Virginie Pinel, Etienne Berthier, Tobias Dürig, Hannah Iona Reynolds, Christopher W. Hamilton, Guðmundur Valsson, Páll Einarsson, Daniel Ben‐Yehosua, Andri Gunnarsson, Björn Oddsson
Publikováno v:
Geophysical Research Letters
Geophysical Research Letters, 2022, ⟨10.1029/2021GL097125⟩
Geophysical Research Letters, 2022, ⟨10.1029/2021GL097125⟩
The basaltic effusive eruption at Mt. Fagradalsfjall began on March 19, 2021, ending a 781-year hiatus on Reykjanes Peninsula, Iceland. At the time of writing (January 7, 2022), no eruptive activity has been observed since September 18, 2021. To moni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71f4c33c81c23f954c89d16458cd05e7
https://hal.science/hal-03719668
https://hal.science/hal-03719668
Jökulhlaups (glacier outburst floods) are considered the most common type of volcanic hazard in Iceland, and result from the accumulation of meltwater during long-term geothermal activity beneath glaciers, or very rapid melting over a short period o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85238d30a429799d0c7ef411a085840d
https://doi.org/10.5194/egusphere-egu22-8751
https://doi.org/10.5194/egusphere-egu22-8751
Autor:
Magnus Tumi Gudmundsson, Thórdís Högnadóttir, Eyjólfur Magnússon, Hannah I Reynolds, Guðrún Larsen, Finnur Pálsson
Eruptions where glacier ice has a significant effect on the style of activity occur in some parts of the world, notably the Andes, Alaska, parts of Antarctica and Iceland. Due to its northerly latitude and considerable ice cover within the volcanical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fac93af18b0e5fc9c7c0f4dcb40e1ccf
https://doi.org/10.5194/egusphere-egu22-12717
https://doi.org/10.5194/egusphere-egu22-12717
Autor:
Eyjólfur Magnússon, Vincent Drouin, Finnur Pálsson, Krista Hannesdóttir, Joaquín M. C. Belart, Gunnar Sigurðsson, Jan Wuite, Tómas Jóhanneson, Benedikt G. Ófeigsson, Thomas Nagler, Magnús T. Gudmundsson, Thórdís Högnadóttir, Michelle Parks, Matthew J. Roberts, Etienne Berthier
The subglacial lake Grímsvötn, beneath Vatnajökull ice cap, has been an important study area since the first attempts to explain the physics of jökulhlaups. The lake, covered by an up to 300 m thick ice shelf, is situated within a caldera of an a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d8c2596dd2da4f28ed021a3ddd709d2
https://doi.org/10.5194/egusphere-egu22-8240
https://doi.org/10.5194/egusphere-egu22-8240
Autor:
Tobias Dürig, Magnús T. Gudmundsson, Thorbjörg Ágústsdóttir, Thórdís Högnadóttir, Louise S. Schmidt
Publikováno v:
Bulletin of Volcanology. 84
Real-time monitoring of volcanic ash plumes with the aim to estimate the mass eruption rate is crucial for predicting atmospheric ash concentration. Mass eruption rates are usually assessed by 0D and 1D plume models, which are fast and require only a
Autor:
Magnús T. Gudmundsson, Maria H. Janebo, Guðrún Larsen, Thórdís Högnadóttir, Thorvaldur Thordarson, Jónas Gudnason, Tinna Jónsdóttir
Due to poor preservation and lack of proximal tephra thickness data, no comprehensive isopach map has existed for the tephra layer from the major eruption of the Katla volcano in 1918. We present such a map obtained by combining existing data on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::078b981c3848a0b3be301f6f7d350207
https://hdl.handle.net/20.500.11815/3192
https://hdl.handle.net/20.500.11815/3192
Publikováno v:
Journal of Geophysical Research: Solid Earth. 124:8187-8204