A5028872848- Cryospheric studies and observations
- Landslides and related hazards
- Geology and Paleoclimatology Research
- Winter Sports Injuries and Performance
- Climate change and permafrost
- Geological and Geophysical Studies
- Methane Hydrates and Related Phenomena
- Geological Studies and Exploration
- Planetary Science and Exploration
- Marine and environmental studies
- Flood Risk Assessment and Management
- Arctic and Antarctic ice dynamics
- Geological and Geochemical Analysis
- Astro and Planetary Science
- High-Velocity Impact and Material Behavior
University of Iceland
2021-2025
Abstract The basaltic effusive eruption at Mt. Fagradalsfjall lasted from 19 March to 18 September 2021, ending a 781‐year repose period on Reykjanes Peninsula, Iceland. By late 33 near real‐time photogrammetric surveys were completed using satellite and airborne images, usually processed within 3–6 hr. results provide unprecedented temporal data sets of lava volume, thickness, effusion rate. This enabled rapid assessment evolution hazards populated areas, important infrastructure, tourist...
Since the turn of 20th century, glacial thinning has been exposing volcanic mountain slopes around Iceland’s outlet glaciers. In early 2000s, several slope instabilities appeared Svínafellsjökull glacier in Southeast Iceland. The largest these is located on a called Svarthamrar and defined by more than 2 km-long fracture system that separates northernmost part mountain, south Svínafellsjökull. Here we present updated bed topography, stratigraphical structural assessment slope, quantify...
Abstract Crevasse‐squeeze ridges (CSRs) are landforms that have been unequivocally linked to surge‐type glaciers. The formation of CSRs has discussed since they were first defined in the mid‐1980s. Here, we describe geometric CSR networks from terrestrial glacier forefields two glaciers Trygghamna, Western Svalbard. No surges observed Trygghamna; however, presence signifies past surge activity. Detailed geomorphological maps constructed, and spatial context these described. Cross‐sections...
Abstract In the last 130 years, Icelandic glaciers have experienced significant mass loss, and numerous paraglacial slope failures been documented in country. One such failure occurred late February 2013, when a large landslide fell onto Svínafellsjökull outlet glacier southeast Iceland. Digital elevation models aerial imagery were used to quantify glacial changes leading up event, reconstructing processes that during effects of debris on surface. Between 1994 thinning glacier‐retreat...
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Earth and Space Science Open Archive This preprint has been submitted to is under consideration at Geophysical Research Letters. ESSOAr a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints preprintOpen AccessYou are viewing the latest version by default [v1]Volume, effusion rate, lava transport during 2021 Fagradalsfjall eruption: Results from near real-time photogrammetric monitoringAuthorsGro Birkefeldt MøllerPederseniDJoaquin...
<p>The basaltic effusive eruption at Mt. Fagradalsfjall began on March 19, 2021, ending a 781-year hiatus Reykjanes Peninsula, Iceland. At the time of writing (January 7, 2022), no eruptive activity has been observed since September 18, 2021. To monitor key parameters (i.e., effusion rate and volume), near-real photogrammetric monitoring was performed using combination satellite airborne stereo images.</p><p>By late 32 near real-time surveys were...
This paper presents new estimates of the dimensions and impact 1967 Steinsholtshlaup in Iceland order to understand better event, hazards it generated, its long-term legacy implications for both landscape interpretation hazard planning areas contemporary valley glaciation. On 15th of January a major rockslide occurred on northern face Innstihaus mountain southern Iceland, which overlooked glacier called Steinsholtsjökull. The slide during intensive snowmelt, that followed...
Glacial outburst floods (jökulhlaups) have been a significant driver of landscape evolution, environmental change, and geohazards throughout the Quaternary. Iceland experiences more frequent jökulhlaups than nearly anywhere else on Earth, though most research focuses subglacial volcanogenic that drain across outwash plains. Abundant geomorphologic evidence exists for largescale drained along modern-day course Hvítá River in southwestern during early Holocene deglaciation, originating from...
One of the most visible consequences climate changes in Iceland are retreating outlet glaciers and formation proglacial lakes. It is estimated that Icelandic have lost about 16% their mass since 1890 or over a 130-year time interval. Temperatures been fluctuating this period with exceptional warm 1920s 1930s followed by slightly colder interval until beginning 1980s. During glacier retreated considerably but around 1970 begun to readvancing which continued 1995. At end 20th century another...
Since the end of Little Ice Age in late 19th century Iceland’s glaciers have experienced dramatic mass loss. Thinning outlet are exposing oversteepened rock slopes, which sometimes adjust form slow slope deformations that can occasionally result catastrophic paraglacial failures. Especially around country’s deglaciating central volcanoes large landslides occurred past decades. We describe a cluster gravitational movements margin Svínafellsjökull glacier...
<p>On the 15<sup>th</sup> of January 1967, a rockslide, approximately 20 million m<sup>3</sup> in volume, fell from Mt. Innstihaus on to Steinsholtsjökull outlet glacier, located northern side Eyjafjallajökull ice cap South Iceland. The rockslide onto western glacier and broke up its snout. Part material into proglacial lake, front margin, causing large GLOF down Steinsholtsdalur valley. Huge...
<p>On February 27<sup>th</sup> 2013 a large landslide fell onto Svínafellsjökull glacier, on the western slope of Öræfajökull volcano, SE Iceland. The slide occurred during an intensive rainstorm event between 24<sup>th</sup> and 27<sup>th</sup>. was detected at 20:30 o’clock seismic station located several kilometres...
<p>A large deep seated gravitational slope deformation has been detected in a mountain north of the Tungnakvíslarjökull outlet glacier, western part Mýrdalsjökull ice cap South Iceland. also hosts Katla central volcano, which erupted spectacularly last 1918. Based on comparison Digital Elevation Models (DEMs) obtained from aerial photographs, lidar and Pléiades stereoimages, showing slow since 1945 to present. The...