A5015916475- Cryospheric studies and observations
- Winter Sports Injuries and Performance
- Landslides and related hazards
- Geology and Paleoclimatology Research
- Adventure Sports and Sensation Seeking
- Arctic and Antarctic ice dynamics
- Climate change and permafrost
- Methane Hydrates and Related Phenomena
- Polar Research and Ecology
- Seismic Waves and Analysis
- Microbial Community Ecology and Physiology
- Climate variability and models
- Plant Ecology and Soil Science
- Geological and Geophysical Studies
- Geophysics and Gravity Measurements
- Atmospheric and Environmental Gas Dynamics
- Soil erosion and sediment transport
- Marine and environmental studies
- Topic Modeling
- Radioactivity and Radon Measurements
- Radioactive contamination and transfer
- Hydrology and Watershed Management Studies
- Natural Language Processing Techniques
Icelandic Meteorological Office
2014-2024
The FRAM Centre
2017
Landsvirkjun (Iceland)
2007
The volume of glaciers in Iceland (∼3,400 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi mathvariant="normal">k</mml:mi><mml:msup><mml:mi mathvariant="normal">m</mml:mi><mml:mn>3</mml:mn></mml:msup></mml:mrow></mml:math> 2019) corresponds to about 9 mm potential global sea level rise. In this study, observations from 98.7% glacier covered areas (in are used construct a record mass change Icelandic since the end 19th century i.e. Little Ice Age (LIA) Iceland....
Abstract Glacier runoff and melt from volcanic geothermal activity accumulates in glacier dammed lakes glaciated areas around the world. These eventually drain, creating hazardous subglacial floods that are usually only confirmed after they exit reach local river systems, which can be many tens of kilometres flood source. Once travel rapidly to populated areas. Such delayed detection represents a potentially lethal shortcoming early-warning. Here we demonstrate how advance early-warning...
ABSTRACT Discharge and water temperature measurements in the Skaftá river of lowering ice over subglacial lake at western cauldron, Vatnajökull, Iceland, were made during a rapidly rising glacial outburst flood (jökulhlaup) September 2006. Outflow from lake, discharge glacier terminus transient volume floodwater jökulhlaup are derived these data. The 40 km long initial path was mainly formed by lifting deformation overlying ice, induced pressure excess overburden pressure. Melting due to...
ABSTRACT GPS campaigns on glaciers during jökulhlaups show how subglacial floods affect glacier motion and shed light the dynamics of such floods. Three have been carried out southern western Vatnajökull, southeast Iceland, over known jökulhlaup paths. Two slowly rising from Grímsvötn two rapidly eastern Skaftá cauldrons were captured in these campaigns, with maximum discharge ranging 240 to 3300 m 3 s −1 . Glacier surface movements measured are presented along corresponding curves. The...
The subglacial, geothermal lake beneath the Western Skaftá cauldron (depression) in Vatnajökull ice cap, Iceland, was accessed by hot water drilling through overlying 300 m‐thick shelf. Most of ca. 100‐m column near 4.7°C, but underlain a distinct ∼10 m‐deep mass at 3.5°C. sensible heat content is approximately twice potential energy dissipated outburst floods, and temperature may be an important factor development subglacial courses jökulhlaups from lake. higher than maximum density,...
Abstract Glacial floods (jökulhlaups) are a phenomenon of some temperate ice masses; they significant natural hazard, but their complex hydrology is incompletely understood. We document jökulhlaup from subglacial lake in Iceland that was inadvertently triggered by borehole drilled through the overlying ice. propose this allowed an englacial water body to drain into lake, inducing transient rise pressure overwhelmed lake's seal 5 days later. Runaway melting conduit 4°C then initiated flood...
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Estimations of bedrock topography below glaciers and ice thickness are vital for quantifying freshwater availability surrounding populations understanding the contribution melting to sea-level rise in context global warming. While active seismology is commonly used estimation, utilization passive methods remains relatively rare. Passive solutions offer cost-effectiveness, non-invasiveness continuous monitoring capabilities that present valuable benefits glaciological research. Over past two...
We present a study on two j&#246;kulhlaups from the subglacial lake Gr&#237;msv&#246;tn, beneath Vatnaj&#246;kull ice cap, SE-Iceland, giving new insights into development of slowly rising j&#246;kulhlaups. In first, spanning period 14 November &#8211; 10 December, 2021, ~0.92 km3 water was released, reaching peak discharge ~3500 m3 s&#8211;1 4 December. latter, taking place 4&#173;&#8211;22 October, 2022, corresponding numbers were ~0.16 and ~500...
Upplýsingar bárust frá 41 sporðamælistað haustið 2014. Hop mælist á 31 stað en Kötlujökull stendur í stað. Kvíárjökull gengur fram og Svínafellsjökull um 2 m öðrum af tveimur mælistöðum. Á fjórum stöðum kom snjór við jökulsporðinn veg fyrir nákvæma mælingu. Að sporðum varð ekki komist vegna gasmengunar lokana tengdum eldsumbrotunum Holuhrauni. Við Heinabergsjökul, Geitakinn, torveldaði lón framan mælingu þó er ljóst að sporðurinn þar
Í vorferð JÖRFÍ í byrjun júní fór hluti hópsins Kverkfjöll. Skoðun á gögnum úr ferðinni leiddi ljós að vatn var tekið safnast fyrir Gengissigi, jökulstíflaða lóninu austan við skála Jöklarannsóknafélagsins. Mælingarnar sýna hækkun vatnsborðs frá haustinu 2012 hafði numið um 20 metrum. Samkvæmt myndum sem teknar voru eftir miðjan júlí vatnsborð enn hækkað 5 metra eða svo þeim sex vikum liðið höfðu vorferðinni. Því ljóst hlaup gæti komið siginu innan árs héldi þessi þróun áfram. Þann 15. ágúst...
Upplýsingar bárust frá 35 sporðamælistöðum haustið 2016. Þar af mælist hop á 21 stað en framgangur 5 stöðum. Einn jökuljaðar stendur í stað. Mæling náðist ekki 8 stöðum vegna snjóskafla við jaðar, veðurs eða fljótandi jaka lóni framan jökulinn.
Upplýsingar bárust frá 33 sporðamælistöðum haustið 2017. Þar af mælist hop á 24 stöðum en framgangur 4 stöðum. Mæling náðist ekki 5 vegna snjóskafla við jaðar eða fljótandi jaka lóni framan jökulinn. Einn nýr mælistaður bættist með mælingum austanverðan Tindfjallajökul.
The Skaft&#225;r cauldrons are a pair of depressions at the surface Vatnaj&#246;kull glacier that signify subglacial lakes caused by geothermal heat sources underlying bedrock. These continuously grow in volume and produce fast-rising j&#246;kulhlaups (glacial lake outburst floods) outlet 35-40 km away. Seismic tremor events coincide with these large floods, but exact source this is unknown. To investigate origin characteristics tremors, network covariance matrix spectral width,...
Upplýsingar bárust frá 36 sporðamælistöðum haustið 2015. Mæling náðist ekki á 9 stöðum. Á óvenju mörgum stöðum, eða alls 8, huldi snjór jökulsporðinn þetta haustið, eftir snjóþungann vetur og kalt sumar. Við vestanverðan Skeiðarárjökul var hægt að komast sporðinum vegna breytinga farvegi Súlu, sem nú hefur fært sig yfir í Gígjukvísl stað þess sameinast Núpsvötnum líkt áður. Af þeim 27 stöðum þar mæling hopa 18 en 6 ganga fram. Svínafellsjökull stendur svo öðrum af tveimur mælistöðum. nýlegum...
Jöklaárið 2012–2013 lagðist í dúr við fyrri ár á þessari öld með hlýindum og var fremur úrkomusamt. Veturinn líkt 2012 snemma að, einkum norðanlands kom það aftur veg fyrir mælingar sumum jökulsporðum.