Zobrazeno 1 - 10
of 105
pro vyhledávání: '"Magnús T Gudmundsson"'
Autor:
Giovanna Montesano, Concetta Rispoli, Paola Petrosino, Marie D. Jackson, Tobias B. Weisenberger, Magnús T. Gudmundsson, Piergiulio Cappelletti
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-19 (2023)
Abstract Alteration of basaltic glass and in situ mineral growth are fundamental processes that influence the chemical and material properties of Earth’s oceanic crust. These processes have evolved at the basaltic island of Surtsey (SW Iceland) sin
Externí odkaz:
https://doaj.org/article/10f10219cfbd4015b24a7552cc9789c6
Autor:
Freysteinn Sigmundsson, Virginie Pinel, Ronni Grapenthin, Andrew Hooper, Sæmundur A. Halldórsson, Páll Einarsson, Benedikt G. Ófeigsson, Elías R. Heimisson, Kristín Jónsdóttir, Magnús T. Gudmundsson, Kristín Vogfjörd, Michelle Parks, Siqi Li, Vincent Drouin, Halldór Geirsson, Stéphanie Dumont, Hildur M. Fridriksdottir, Gunnar B. Gudmundsson, Tim J. Wright, Tadashi Yamasaki
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)
Large-volume volcanic eruptions can occur despite only limited precursory activity. Here the authors show that modelling the combined effects of buoyant magma, viscoelastic earth behaviour, and sustained magma channels can explain such behaviour of v
Externí odkaz:
https://doaj.org/article/0c024d3baeee4898b806085012a75a92
Publikováno v:
Journal of Geophysical Research: Atmospheres. 128
The considerable effects that wind can have on estimates of mass eruption rates (MERs) in explosive eruptions based on volcanic plume height are well known but difficult to quantify rigorously. Many explicitly wind-affected plume models have the addi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52f9b4f4bcb77abfceb2e7d394003760
https://doi.org/10.1029/2022jd037781
https://doi.org/10.1029/2022jd037781
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:
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fd98a0dc26960d3a4f64b8e44d6b97c
https://tc.copernicus.org/articles/15/3731/2021/tc-15-3731-2021.pdf
https://tc.copernicus.org/articles/15/3731/2021/tc-15-3731-2021.pdf
Autor:
Daniel Müller, Thomas R. Walter, Anne Schöpa, Tanja Witt, Bastian Steinke, Magnús T. Gudmundsson, Tobias Dürig
Publikováno v:
Frontiers in Earth Science, Vol 5 (2017)
Fissure eruptions are commonly linked to magma dikes at depth and are associated with elastic and inelastic surface deformation. Elastic deformation is well described by subsidence occurring above the dike plane and uplift and lateral widening occurr
Externí odkaz:
https://doaj.org/article/b98bd7bbb52942e08a81999977eb3bf4
Autor:
Magnús T. Gudmundsson, Erik Sturkell
Publikováno v:
JOKULL. 70:129-138
The first recorded visit to Grímsvötn occurred on the 31st of August 1919. Two Swedish geology students, Hakon Wadell and Erik Ygberg, stood on the edge of a hitherto unknown large caldera. This discovery was the most significant finding in the fir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91a17b1f9df2e776c7bbd02fb07114dd
https://doi.org/10.33799/jokull2020.70.129
https://doi.org/10.33799/jokull2020.70.129
Autor:
Árni Hjartarson, Joaquín M. C. Belart, Magnús T. Gudmundsson, Alexander H. Jarosch, Eyjólfur Magnússon, Bolli Pálmason, Tómas Jóhannesson
Publikováno v:
Journal of Glaciology. 66:685-697
Non-surface mass balance is non-negligible for glaciers in Iceland. Several Icelandic glaciers are in the neo-volcanic zone where a combination of geothermal activity, volcanic eruptions and geothermal heat flux much higher than the global average le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45edd59da922c9093dc8d90208c27609
https://doi.org/10.1017/jog.2020.37
https://doi.org/10.1017/jog.2020.37
Autor:
Magnús T. Gudmundsson, Carolyn F. Gorny, James D. L. White, Marie D. Jackson, Jocelyn McPhie, Samantha Couper
Publikováno v:
Surtsey research. 14:19-32
Surtsey was drilled in 2017 in the context of the Surtsey Underwater volcanic System for Thermophiles, Alteration processes and INnovative Concretes (SUSTAIN) project. Vertical drill holes, SE-02a and SE02b (drilled to 191.64 m), and angled drill SE-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::811e68b7af70d45d3309e08ee1e3ce87
https://doi.org/10.33112/surtsey.14.2
https://doi.org/10.33112/surtsey.14.2
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
