Hannah Iona Reynolds

Glaciovolcanism in Iceland: Observations of frequent eruptions over the last three decades, styles of activity, influence of ice thickness and impact on the glaciers

Magnús Tumi Gudmundsson, Þórdís Högnadóttir, Hannah Iona Reynolds, R.P. Cole et autres

Due to its northerly latitude, about 10% of Iceland is covered by glaciers and a substantial part of the most active volcanoes are ice covered. As a result, volcano-ice interaction in various forms is very common in Iceland. Steep-sided mountains (elongated ridges …

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Thermal effects of intrusive events on geothermal systems: Heat transfer modelling during (and after) the Krafla volcano-tectonic episode 1975-84, NE-Iceland

Patricia Fehrentz, Magnús Tumi Gudmundsson, Hannah Iona Reynolds

Young igneous geothermal systems recharge by magmatic activity. Due to Iceland’s location on the mid-ocean ridge, repeated dyking compensates here for the spreading. This study examines the impact of intrusive and eruptive events on the thermal evolution of the Krafla geothermal system. …

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Heat released by steaming during the Krafla fires (1975-84)

Michaela A. Chodora, Anette Kærgaard Mortensen, Joaquín Muñoz-Cobo Belart, Magnús Tumi Guðmundsson et autres

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, Iceland

Patricia Fehrentz, Magnús Tumi Guðmundsson, Hannah Iona Reynolds, Anette Kærgaard Mortensen et autres

The Krafla volcano-tectonic episode in NE-Iceland in 1975–1984 was associated with approximately 10 m widening of the plate boundary within the Krafla caldera, where a high-temperature geothermal system is located. A composite dyke was formed, with an estimated volume 0.15–0.31 km 3 …

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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, Iceland

Patricia Fehrentz, Magnús Tumi Guðmundsson, Hannah Iona Reynolds, Anette Kærgaard Mortensen et autres

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Ice cauldrons and their relationship with volcanic and geothermal activity in ice-covered volcanoes in Iceland

Magnús Tumi Guðmundsson, Þórdís Högnadóttir, Hannah Iona Reynolds, Eyjólfur Magnússon et autres

About 10% of Iceland is covered by glaciers, including three of the four most active central volcanoes, Grímsvötn, Katla and Bárðarbunga, where the ice-filled calderas have glacier thickness of several hundred meters. Ice cauldrons, defined as circular or elongated depressions in the …

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Estimates of heat release to the atmosphere related to effusive volcanic eruptions and intrusive activity during the 1975-84 rifting episode of Krafla, NE-Iceland

Patricia Fehrentz, Magnús Tumi Guðmundsson, Hannah Iona Reynolds, Sidney R. Gunnarson et autres

The heat transfer dynamics in volcanic geothermal areas determine the options for geothermal energy exploration. Intrusive and eruptive events provide additional heat input into the geothermal system, as cooling and solidification of the magma heats the surrounding host rock and water in …

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Volume, effusion rates and lava hazards of the 2021, 2022 and 2023 Reykjanes fires: Lessons learned from near real-time photogrammetric monitoring

Gro B. M. Pedersen, Joaquín M. C. Belart, Birgir V. Óskarsson, Sydney R. Gunnarson et autres

At the time of writing (January 9, 2024) four basaltic effusive eruptions have taken place on the Reykjanes Peninsula, SW Iceland since 2021. This includes three eruptions within the Fagradalsfjall volcanic system (March 19–September 18, 2021; August 3–21, 2022 and July 10–August …

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Digital Elevation Models (DEMs) and lava outlines from the 2023 Litla-Hrútur eruption, Iceland, from Pléiades satellite stereoimages

Joaquín M. C. Belart, Virginie Pinel, Hannah Iona Reynolds, Étienne Berthier et autres

Introduction: On the 10th of July 2023, at 16:40, an eruption started in the Reykjanes Peninsula, Iceland, next to the mountain "Litla-Hrútur". As part of the response, the CIEST2 french initiative was activated (Gouhier et al., 2022). Once activated, Pléiades stereoimages were …

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Digital Elevation Models (DEMs) and lava outlines from the 2023 Litla-Hrútur eruption, Iceland, from Pléiades satellite stereoimages

Joaquín M. C. Belart, Virginie Pinel, Hannah Iona Reynolds, Étienne Berthier et autres

Introduction: On the 10th of July 2023, at 16:40, an eruption started in the Reykjanes Peninsula, Iceland, next to the mountain "Litla-Hrútur". As part of the response, the CIEST2 french initiative was activated (Gouhier et al., 2022). Once activated, Pléiades stereoimages were …

is, fr (code pays fourni par la source)

Digital Elevation Models (DEMs) and lava outlines from the 2023 Litla-Hrútur eruption, Iceland, from Pléiades satellite stereoimages

Joaquín M. C. Belart, Virginie Pinel, Hannah Iona Reynolds, Étienne Berthier et autres

Introduction: On the 10th of July 2023, at 16:40, an eruption started in the Reykjanes Peninsula, Iceland, next to the mountain "Litla-Hrútur". As part of the response, the CIEST2 french initiative was activated (Gouhier et al., 2022). Once activated, Pléiades stereoimages were …

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Pre-existing fractures and eruptive vent openings during the 2021 Fagradalsfjall eruption, Iceland

Ásta Rut Hjartardóttir, Tobias Dürig, Michelle Maree Parks, Vincent Drouin et autres

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