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Molecular-level characterization of supraglacial dissolved and water-extractable organic matter along a hydrological flow path in a Greenland Ice Sheet micro-catchment
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-01-06)Sunlight penetrates the bare-ice surface of glaciers and ice sheets, giving rise to the presence of a three-dimensional porous matrix of partially melted ice crystals known as the weathering crust. Surface meltwater slowly percolates through this weathering crust, which hosts active and diverse bacterial communities, until it reaches a supraglacial stream. Despite the potential implications of ... -
The Upper Devonian to Lower Carboniferous Billefjorden Group on Bjørnøya, Svalbard, and Its North-Eastern Greenlandic Provenance
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-12-13)In this contribution, we document changes in detrital zircon ages in the upper Devonian (Famennian) to lower Carboniferous (Mississippian) Billefjorden Group on Bjørnøya, the southernmost island of Svalbard. This alluvial, coal-bearing clastic succession is widely distributed across the archipelago and the Barents Shelf. The sediments were deposited in subsidence-induced lowlands that formed just ... -
Arctic Tectonics and Volcanism: a multi-scale, multi-disciplinary educational approach
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-12-16)Geologically, the Arctic is one of the least-explored regions of Earth. Obtaining data in the high Arctic is logistically, economically, and environmentally expensive, but the township of Longyearbyen (population of 2617 as of 2024) at 78° N represents a relatively easily accessible gateway to Arctic geology and is home to The University Centre in Svalbard (UNIS). These unique factors provide a ... -
The potential for glacial flour to impact soil fertility, crop yield and nutrition in mountain regions
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-26)Novel sustainable agricultural strategies that enhance soil nutrients and human nutrition are crucial for meeting global food production needs. Here, we evaluate the potential of “glacial flour”, a naturally crushed rock produced by glaciers known to be rich in nutrients (P, K, and micronutrients) needed for plant growth. Our proof-of-concept study, investigated soybean (Glycine max. var. Black jet) ... -
Monitoring of microplastics in the Norwegian environment (MIKRONOR) 2023
(Research report; Forskningsrapport, 2024)The MIKRONOR monitoring program aims to establish baseline levels of microplastics in the Norwegian environment and to identify potential sources and sinks. This third MIKRONOR report focuses mainly on results from air samples, including data on tyre wear particles (TWP), as well as river and fjord surface water samples, and their correlation to rainfall and river discharge levels. Additionally, ... -
Norræna eldfjallastöðin 1974–2024 – Eftirmæli
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-12)Norræna eldfjallastöðin eða NordVulk, seinna Norræna eldfjallasetrið á Íslandi, varð 50 ára árið 2024. Á þessum tímamótum hættir NordVulk því miður starfsemi í núverandi mynd og lýkur þá árangursríku skeiði norrænna eldfjallarannsókna á Íslandi. Hér verður stuttlega rakin saga stöðvarinnar og rifjaðar upp nokkrar frásagnir af lífinu á eldfjallastöðinni. -
Assessing Environmental Quality in a Historically Polluted Fjord: A Comparison of Benthic Foraminiferal eDNA and Morphospecies Approaches
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-30)This study is the first assessment of a fjord Ecological Quality Status (EcoQS) by comparing both the traditional morphology-based and emerging metabarcoding techniques in benthic foraminifera. For this, we focus on historically polluted Idefjord on the Swedish Norwegian border, which has experienced high effluent load from pulp and paper mill for almost a century. Based on our results, the morphological ... -
Impact of Paleocene–Eocene tectonic and climatic forcing on Arctic sediment transfer variability: SW Barents Sea, Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-29)During the Paleocene and Eocene, many Arctic basins experienced multiple, yet synchronous periods of increased sedimentation rates. Several causal factors have been suggested including major volcanic events, tectonic plate reorganization and plate break-up, as well as widespread uplift along with contemporaneous and short-lived hyperthermal events. However, the significance of and relation between ... -
Semi-automated analysis of faults with meter-scale displacements and networks of planar features using high-resolution 3D seismic to investigate gas leakage at the Vestnesa Ridge, eastern Fram Strait
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-13)We develop a semiautomated method for extracting faults and other planar features from two high-resolution (HR) seismic volumes in the eastern Fram Strait. We assess seismic data quality and resolution prior to structural interpretation to determine the appropriate processing workflow. This workflow, designed for HR data sets, identifies meter-scale (>3–4 m) faults and other planar features, picked ... -
Creating better internships by understanding mentor challenges: findings from a series of focus groups
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-12-15)Background - Despite demands to make higher education more relevant beyond academia, and a growing body of work testifying to the benefits of work-relevance programs (e.g., work-placements, or internships) for both students and the companies that host them, there is limited information available for those aiming to optimize these programs. For example, few have explored the challenges and needs of ... -
BFR2: a curated ribosomal reference dataset for benthic foraminifera
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-27)Benthic foraminifera are one of the major groups of marine protists that also occur in freshwater and terrestrial habitats. They are widely used to monitor current and past environmental conditions. Over the last three decades, thousands of DNA sequences have been obtained from benthic foraminiferal isolates. The results of this long-term effort are compiled here in the form of the first curated ... -
A Sequential Leaching Protocol for δ11B and Trace Element Analyses of Multi-Phase Carbonate Rocks
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-10-22)Boron geochemistry from biogenic carbonates offer valuable information about ocean pH and CO<sub>2</sub> chemistry. However, application to geological carbonate deposits suffers from analytical difficulties in obtaining geochemical signals exclusively from the carbonate phase. Sequential leaching with reagents and acids has the potential to overcome such an issue. There is, however, little systematic ... -
Editorial: Natural methane emissions in a changing arctic – implications for climate and environment
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-10-23)Natural methane emissions have received significant attention in recent years due to the documented increase in atmospheric concentrations of methane and its elevated global warming potential relative to CO2. Over the past decades, the Arctic has been warming nearly four times faster than the rest of the planet (Rantanen et al., 2022). Arctic amplification of global warming drives a pressing need ... -
Cambrian-Ordovician trace fossils of the Basissletta region, northeast Spitsbergen, Svalbard
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-10-29)Trace fossils of the Cambrian–Ordovician sedimentary succession of the Basissletta region, northeast Spitsbergen, Svalbard, belong to three ichnoassemblages. The first one, composed of Monocraterion and Diplocraterion, belongs to the Skolithos ichnofacies and characterises sandstones of the Tokammane Formation (lower Cambrian: Terreneuvian) deposited in a shallow subtidal setting. The overlying ... -
Motivation for slushflow classification
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024)Slushflows are a type of rapid mass movement where water saturated snow flows downhill. Slushflows come in many different sizes, have different triggering mechanisms, and contain debris ranging from simply snow and ice to soil, rock and vegetation. Slushflows are often misclassified as debris flows, wet snow avalanches or river/stream ice jam processes. <p> <p>Norway reports 5 to 20 larger ... -
Limitations of RAMMS:Debrisflow as a slushflow simulation tool
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024)Slushflows are defined as water-saturated snow (slush), that moves rapidly downslope as a gravitational mass flow. The high-water content of the flow results in a high density, posing a significant danger to construction, infrastructure and people in its path. To reduce this danger, it is important to predict where slushflows may initiate and travel in the terrain. Numerical modelling of the runout ... -
Building resilience to avalanches and other climate-driven geohazards through international collaboration in education: experience from the GEOMME partnership
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024)The GEOMME international partnership for ‘Climate-driven GEOhazards Mitigation, Management, and Education’ fosters collaboration in research and education on climate-driven geohazards across South Korea, Japan, and Norway. The initiative focuses on enhancing societal resilience against gravitational mass flows through excellence in education and research, aiming to improve the adaptive capacities ... -
Neogene - Quaternary evolution of the northeastern Fram gateway, European Arctic
(Conference object; Konferansebidrag, 2024-10) -
Arctic freshwater outflow suppressed Nordic Seas overturning and oceanic heat transport during the Last Interglacial
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-10-27)The Last Interglacial period (LIG) was characterized by a long-term Arctic atmospheric warming above the preindustrial level. The LIG thus provides a case study of Arctic feedback mechanisms of the cryosphere-ocean circulation-climate system under warm climatic conditions. Previous studies suggested a delay in the LIG peak warming in the North Atlantic compared to the Southern Ocean and evoked the ... -
Integrating ROV MBES and photogrammetry data for comprehensive mapping of cold seep systems at Hakon Mosby Mud Volcano (HMMV) in the Barents Sea
(Conference object; Konferansebidrag, 2024-07)
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