Skip to main content

EN
ÍS

Forsíða

Forsíða

Magnús Tumi Guðmundsson - Professor

Magnús Tumi Guðmundsson

–

School of Engineering and Natural Sciences

Magnús Tumi Guðmundsson

Professor

- Geophysics

Location
Askja / N-332
Phone
525 - 5867
Email
mtg [at] hi.is

Unit
Faculty of Earth Sciences
Website
https://uni.hi.is/mtg/

Published works

2025

Proximal products of ~ 12 ka silicic explosive-effusive eruptions at Katla volcanoBulletin of Volcanology
3D Model of the Shallow Crustal Density Distribution of the Krafla Volcanic System in IcelandJournal of Geophysical Research: Solid Earth
Heat from dyke intrusions released by boiling of warm groundwater and steaming into the atmosphere during the 1975–1984 eruptive and intrusive activity at Krafla, IcelandJournal of Volcanology and Geothermal Research
Case Studies Illustrating the Role of Geomorphology in Assessing Volcanic Hazards
Fracture dynamics and topographic controls at Mount Thorbjörn during the Svartsengi 2023–2024 volcanic unrest, IcelandJournal of Volcanology and Geothermal Research

2024

Internal structure of the volcanic island of Surtsey and surroundingsJournal of Volcanology and Geothermal Research
Material and mechanical properties of young basalt in drill cores from the oceanic island of Surtsey, IcelandBulletin of the Geological Society of America
Nýtt gosskeið hafið á ReykjanesskagaNáttúrufræðingurinn
Morphological changes of the south-eastern wall of Askja caldera, Iceland over the past 80 yearsCommunications Earth and Environment

2023

The eruption in Fagradalsfjall (2021, Iceland)Natural Hazards
Authigenic mineralization in Surtsey basaltic tuff deposits at 50 years after eruptionScientific Reports
Quantifying the Effect of Wind on Volcanic PlumesJournal of Geophysical Research: Atmospheres
A model volcanic fissure with adjustable geometry and wall temperatureBulletin of Volcanology
Observations and Retrievals of Volcanic Ash Clouds Using Ground- and Satellite-Based Sensors

2022

Volume, Effusion Rate, and Lava Transport During the 2021 Fagradalsfjall EruptionGeophysical Research Letters
Measurements of the inclination of the SE-03 Borehole on Surtsey VolcanoSurtsey research
The effect of wind and plume height reconstruction methods on the accuracy of simple plume models — a second look at the 2010 Eyjafjallajökull eruptionBulletin of Volcanology
Volcanic tremor associated with the Surtsey eruption of 1963–1967Jokull
Fifty-year evolution of thermal manifestations at Surtsey Volcano, 1968-2018Surtsey research
CNES-ESA satellite contribution to the operational monitoring of volcanic activityJournal of Applied Volcanology

2021

The explosive basaltic Katla eruption in 1918, south Iceland IJokull
Deciphering the Heat Sources Behind Time-Variant Subglacial Geothermal Areas in Iceland
Development of a subglacial lake monitored with radio-echo soundingCryosphere
Volcanic hazards and risk management in IcelandConsorSeguros
Basalt-Hosted Microbial Communities in the Subsurface of the Young Volcanic Island of Surtsey, IcelandFrontiers in Microbiology
The explosive, basaltic Katla eruption in 1918, south Iceland II. Isopach map, ice cap deposition of tephra and layer volumeJokull
Seismic activity associated with the 1963–1967 Surtsey eruption off the coast of South IcelandBulletin of Volcanology

2020

The Surtsey volcano geothermal system: An analogue for seawater-oceanic crust interaction with implications for the elemental budget of the oceanic crustChemical Geology
Non-surface mass balance of glaciers in IcelandJournal of Glaciology
Morphometry of glaciovolcanic edifices from IcelandGeomorphology
Alteration progress within the Surtsey hydrothermal system, SW Iceland – A time-lapse petrographic study of cores drilled in 1979 and 2017Journal of Volcanology and Geothermal Research
Reykjanes, IcelandJournal of Volcanology and Geothermal Research
Alteration progress within the Surtsey hydrothermal system, SW Iceland – A time-lapse petrographic study of cores drilled in 1979and 2017Journal of Volcanology and Geothermal Research
Unexpected large eruptions from buoyant magma bodies within viscoelastic crustNature Communications
A half-century of geologic and geothermic investigations in IcelandJournal of Volcanology and Geothermal Research
Non-surface mass balance of glaciers in IcelandJournal of Glaciology
Underwater and drone based photogrammetry reveals structural control at Geysir geothermal field in IcelandJournal of Volcanology and Geothermal Research
Sveakratern 1919 – Grímsvötn revisit 2019Jokull

2019

Changes in Geothermal Activity at Bárdarbunga, Iceland, Following the 2014–2015 Caldera Collapse, Investigated Using Geothermal System ModelingJournal of Geophysical Research: Solid Earth
A 25.6 m long firn core extracted from the Grímsvötn ice shelf in June 1993Jokull
Design of the subsurface observatory at Surtsey volcano, IcelandScientific Drilling
SUSTAIN drilling at Surtsey volcano, Iceland, tracks hydrothermal and microbiological interactions in basalt 50 years after eruptionScientific Drilling
VORFERÐ JÖRFÍ 2019Jokull
Persistent albedo reduction on southern Icelandic glaciers due to ashfall from the 2010 Eyjafjallajökull eruptionRemote Sensing of Environment

2018

Integration of SAR Data Into Monitoring of the 2014–2015 Holuhraun Eruption, IcelandFrontiers in Earth Science
Erratum toAdvances in Volcanology
Extreme durability in ancient Roman concretesAmerican Ceramic Society Bulletin
Crisis Coordination and Communication During the 2010 Eyjafjallajökull Eruption
REFIR- A multi-parameter system for near real-time estimates of plume-height and mass eruption rate during explosive eruptionsJournal of Volcanology and Geothermal Research
The Relationship Between Lava Fountaining and Vent Morphology for the 2014–2015 Holuhraun Eruption, Iceland, Analyzed by Video Monitoring and Topographic MappingFrontiers of Earth Science
Thermal power of Grímsvötn, Iceland, from 1998 to 2016Journal of Volcanology and Geothermal Research
Magma movements in volcanic plumbing systems and their associated ground deformation and seismic patterns

2017

Lava field evolution and emplacement dynamics of the 2014–2015 basaltic fissure eruption at Holuhraun, IcelandJournal of Volcanology and Geothermal Research
Crisis coordination and communication during the 2010 Eyjafjallajökull eruption
Evolution of deformation and stress changes during the caldera collapse and dyking at Bárdarbunga, 2014–2015Earth and Planetary Science Letters
Subglacial volcanic activity above a lateral dyke path during the 2014–2015 Bárdarbunga-Holuhraun rifting episode, IcelandBulletin of Volcanology
Gosið í Holuhrauni 2014–2015. Magn gosefna, dreifing mengunar og mikilvægi tímasetningar og staðsetningar eldgosa með tilliti til umhverfisáhrifa
High-resolution digital elevation modeling from TLS and UAV campaign reveals structural complexity at the 2014/2015 Holuhraun Eruption site, IcelandFrontiers in Earth Science

2016

Investigating source conditions and controlling parameters of explosive eruptions: some experimental-observational-modelling case studies
Gradual caldera collapse at Bárdarbunga volcano, Iceland, regulated by lateral magma outflowScience
GEORG
Lava field evolution and emplacement dynamics of the 2014-2015 basaltic fissure eruption at Holuhraun, IcelandJournal of Volcanology and Geothermal Research
Subglacial lava propagation, ice melting and heat transfer during emplacement of an intermediate lava flow in the 2010 Eyjafjallajökull eruptionBulletin of Volcanology
Gradual caldera collapse at Bárdarbunga volcano, Iceland, regulated by lateral magma outflowScience
Fracture movements and graben subsidence during the 2014 Bárdarbunga dike intrusion in IcelandJournal of Volcanology and Geothermal Research
Experimental studies of heat transfer at the dynamic magma ice/water interfaceJournal of Geophysical Research: Solid Earth
MeMoVolc report on classification and dynamics of volcanic explosive eruptionsBulletin of Volcanology
ConclusionGeological Society Special Publication
Fracture movements and graben subsidence during the 2014 Bárðarbunga dike intrusion in IcelandJournal of Volcanology and Geothermal Research
Multidisciplinary constraints of hydrothermal explosions based on the 2013 Gengissig lake events, Kverkfjöll volcano, IcelandEarth and Planetary Science Letters

2015

Kverkfjöll
Ice cauldrons
Mapping of the Eldgjá lava flow on Mýrdalssandur with magnetic surveyingJokull
Tindfjallajökull
Glaciovolcanism
Bárðarbunga
Katla
Grímsvötn
Fire in the holeEos (United States)
Þórðarhyrna
Langjökull
Eyjafjallajökull
Reconstruction of the geometry of volcanic vents by trajectory tracking of fast ejecta - The case of the Eyjafjallajökull 2010 eruption (Iceland)Earth, Planets and Space
Environmental pressure from the 2014–15 eruption of Bárðarbunga volcano, IcelandGeochemical Perspectives Letters
Ice Cauldron
Time-lapse characterization of hydrothermal seawater and microbial interactions with basaltic tephra at Surtsey VolcanoScientific Drilling
Esjufjöll
Hazards from Lahars and Jökulhlaups
Katla
Bárðarbunga
Mass eruption rates in pulsating eruptions estimated from video analysis of the gas thrust-buoyancy transition - A case study of the 2010 eruption of Eyjafjallajökull, Iceland VolcanologyEarth, Planets and Space

2014

Volcanic plume height correlated with magma-pressure change at Grímsvötn Volcano, IcelandNature Geoscience
Segmented lateral dyke growth in a rifting event at Bárðarbunga volcanic system, IcelandNature

2013

JÖKULHLAUP
ELDVIRK SVÆÐI Á ÍSLANDI
UNDIR VATNAJÖKLI
KATLA
Observing Iceland's Eyjafjallajökull 2010 eruptions with the autonomous NASA Volcano Sensor WebJournal of Geophysical Research: Solid Earth
BÁRÐARBUNGA
Iceland: a volcanic island of unique geology in the North Atlantic
Innri gerð eldfjalla
ELDGOS
GRÍMSVÖTN
Futurevolc
ELDUR Í EYJAFJALLAJÖKLI 2010
Hlaup og gufusprengingar í Kverkfjöllum í ágúst 2013Jokull

2012

Ice-volcano interactions during the 2010 Eyjafjallajkull eruption, as revealed by airborne imaging radarJournal of Geophysical Research: Solid Earth
A numerical model for meltwater channel evolution in glaciersCryosphere
Monitoring of the plume from the basaltic phreatomagmatic 2004 Grímsvötn eruption-application of weather radar and comparison with plume modelsBulletin of Volcanology
Future prospects of renewable energy production in Iceland
Automatic estimation of volcanic ash plume height using WorldView-2 imagery
The 2010 eruption of Eyjafjallajökull, Iceland
Móbergsmyndunin og gos undir jöklumNáttúrufræðingurinn
Ash from the Eyjafjallajökull eruption (Iceland)Journal of Geophysical Research: Solid Earth
Dynamics, stratigraphy and proximal dispersal of supraglacial tephra during the ice-confined 2004 eruption at Grímsvötn Volcano, IcelandBulletin of Volcanology
Validating subglacial volcanic eruption using ground-based C-band radar imageryIEEE Transactions on Geoscience and Remote Sensing
Ash generation and distribution from the April-May 2010 eruption of Eyjafjallajökull, IcelandScientific Reports
Magma mobilization by downward-propagating decompression of the Eyjafjallajkull volcanic plumbing systemGeophysical Research Letters
Ash generation and distribution from the April-May 2010 eruption of Eyjafjallajökull, IcelandScientific Reports
Interactions between lava and snow/ice during the 2010 Fimmvörðuháls eruption, South-Central IcelandJournal of Geophysical Research: Solid Earth

2011

Aggregation-dominated ash settling from the Eyjafjallajökull volcanic cloud illuminated by field and laboratory high-speed imagingGeology
Response of Eyjafjallajökull, Torfajökull and Tindfjallajökull ice caps in Iceland to regional warming, deduced by remote sensingPolar Research
Integrating multiple space and ground sensors to track volcanic activity
Near-source observations of aerosol size distributions in the eruptive plumes from Eyjafjallajökull volcano, March-April 2010Atmospheric Environment

2010

A gravity study of silicic domes in the Krafla area, N-IcelandJokull
An unusual jökulhlaup resulting from subglacial volcanism, Sólheimajökull, IcelandQuaternary Science Reviews
Eruptions of eyjafjallajökull Volcano, IcelandEos
Experiments on the heat discharge at the dynamic magma-water-interfaceGeophysical Research Letters

2009

Consequences of local surface load variations for volcano monitoring: Application to Katla subglacial volcano, Iceland

2008

Progressive cooling of the hyaloclastite ridge at Gjálp, Iceland, 1996-2005Journal of Volcanology and Geothermal Research
Volcanic hazards in IcelandJokull
Monitoring active subglacial volcanoesInternational Journal of Remote Sensing
Subglacial and intraglacial volcanic formations in IcelandJokull
Seismic and geodetic insights into magma accumulation at Katla subglacial volcano, IcelandJournal of Geophysical Research: Solid Earth
Six million years of glacial history recorded in volcanic lithofacies of the James Ross Island Volcanic Group, Antarctic PeninsulaPalaeogeography, Palaeoclimatology, Palaeoecology
Seismic and geodetic insights into magma accumulation at Katla subglacial volcano, IcelandJournal of Geophysical Research: Solid Earth

2007

Large hazardous floods as translatory wavesEnvironmental Modelling and Software
Structure of the Grímsvötn central volcano under the Vatnajökull icecap, IcelandGeophysical Journal International
Numerical studies of ice flow over subglacial geothermal heat sources at Grímsvötn, Iceland, using Full Stokes equationsJournal of Geophysical Research: Earth Surface
Geothermal activity in the subglacial Katla caldera, Iceland, 1999-2005, studied with radar altimetryAnnals of Glaciology
Volcanic systems and calderas in the Vatnajökull region, central IcelandJournal of Geodynamics
Comparison and validation of Airborne Thematic Mapper thermal imagery using ground-based temperature data for Grímsvötn caldera, Vatnajökull, Iceland
Hotspot IcelandJournal of Geodynamics
Discriminating volcano deformation due to magma movements and variable surface loadsGeophysical Journal International

2006

Probabilistic model for eruptions and associated flood events in the Katla caldera, IcelandComputational Geosciences
The formation of Helgafell, southwest Iceland, a monogenetic subglacial hyaloclastite ridgeJournal of Volcanology and Geothermal Research

2005

Ice-water interactions during floods from Grænalón glacier-dammed lake, IcelandAnnals of Glaciology
Subglacial volcanic activity in IcelandDevelopments in Quaternary Science
Characteristics and morphological impact of subglacial volcanic activity in Iceland
Yfirlit um hættu vegna eldgosa og hlaupa frá vesturhluta Mýrdalsjökuls og Eyjafjallajökli
Líkindi eldgosa, hlaupa og færslu eldvirkni milli svæða innan Kötluöskjunnar
Palaeomagnetic, ⁴⁰Ar/³⁹Ar, and stratigraphical correlation of Miocene-Pliocene basalts in the Brandy Bay area, James Ross Island, AntarcticaAntarctic Science
Ísbráðnun og upptakarennsli jökulhlaupa vegna eldgosa í Eyjafjallajökli og vestanverðum Mýrdalsjökli
Eruption of Grimsvotn volcano, November 1-6, 2004Jokull

2004

The 1996 eruption at Gjálp, Vatnajökull ice cap, Iceland: Course of events, efficiency of heat transfer, ice deformation and subglacial water pressureBulletin of Volcanology
The 1996 eruption ay Gjálp, Vatnajökull ice cap, IcelandBulletin of Volcanology

2003

Melting of ice by magma-ice-water interactions during subglacial eruptions as an indicator of heat transfer in subaqueous eruptions
Possible Juventae Chasma subice volcanic eruptions and Maja Valles ice outburst floods on MarsJournal of Geophysical Research E: Planets

2002

Three-dimensional glacier surface motion maps at the Gjálp eruption site, Iceland, inferred from combining InSAR and other ice-displacement dataAnnals of Glaciology
The hyaloclastite ridge formed in the subglacial 1996 eruption in Gjálp, Vatnajökull, IcelandGeological Society Special Publication
Rheological properties of fish gelatinsJournal of Food Science
The hyaloclastite ridge formed in the subglacial 1996 eruptin in Gjálp, Vatnajökull, Iceland: present day shape and future preservationJournal of the Geological Society

2001

Study of volcano/ice interactions gains momentumEos
Glacier-volcano interactions deduced by SAR interferometryJournal of Glaciology

2000

CommentEos
Surface and bedrock topography of the Mýrdalsjökull ice cap, Iceland: The Katla caldera, eruption sites and routes of jökulhlaupsJokull

1999

Gravity model studies of the volcanic island Surtsey, IcelandJökull

1998

Mass balance of western and northern Vatnajökull, IcelandJokull
Eight centuries of periodic volcanism at the center of the Iceland hotspot revealed by glacier tephrostratigraphyGeology

1997

Ice-volcano interaction of the 1996 Gjalp subglacial eruption, Vatnajokull, IcelandNature
Center of the Iceland hotspot experiences volcanic unrestEos
Gravity and magnetic studies of the subglacial Grimsvötn volcano, IcelandJournal of Geophysical Research B: Solid Earth

1996

Tephrastratigraphy of Ablation Areas of Vatnajökull Ice Cap, Iceland

1995

Changes in jokulhlaup sizes in Grimsvotn, Vatnajokull, Iceland, 1934- 91, deduced from in-situ measurements of subglacial lake volumeJournal of Glaciology

1993

Variations in the thermal output of the subglacial Grímsvötn Caldera, IcelandGeophysical Research Letters

1992

Volatile release rates from the Grímsvötn volcano, Iceland

1991

Eruptions in Grimsvotn, Vatnajokull, Iceland, 1934-1991Jokull

Keywords for Specialisation: