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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
Geological modeling currently uses various computer-based applications. Data harmonization at the semantic level using ontologies is essential to make these applications interoperable. Since geo-modeling is part of several ...
(Doctoral thesis / Doktoravhandling, 2024)
Flooding currently affects more people than almost any other natural hazard (Van Loenhout et al., 2020) and the proportion of the world’s population that lives in flood-exposed areas is growing rapidly (Tellman et al., ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
Abstract Vesteris Seamount is a large Quaternary intraplate submarine volcano in the SW Greenland Sea, about 1,000 km NE of Iceland and 300 km NW of the Mohn's spreading ridge, whose mode of formation remains unsolved. We ...
(Doctoral thesis / Doktoravhandling, 2024)
The disturbance of the geomagnetic field by solar particles can help us see deep into the Earth’s interior. The way electrical current flows in geological layers often depends on the conductive properties of the fluid ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
Global permafrost regions are undergoing significant changes due to global warming, whose assessments often rely on permafrost extent estimates derived from climate model simulations. These assessments employ a range of ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
Abstract Surging glaciers are glaciers that experience rapidly accelerated glacier flow over a comparatively short period of time. Though relatively rare worldwide, Alaska is home to the largest number of surge‐type glaciers ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
Abstract High‐Alpine regions are prone to a large variety of geohazards, among which earthquakes have the strongest impact on landscape and local population. Historic records indicate a moderate to high seismic activity ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
Abstract We conduct a global assessment of the spatial heterogeneity of cloud phase within the temperature range where liquid and ice can coexist. Single‐shot Cloud‐Aerosol Lidar with Orthogonal Polarization lidar retrievals ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
‘A lack of prior knowledge in the other discipline’ is often given by geoscience instructors to explain why students struggle to apply knowledge from other disciplines to the Earth. We examine this assumption by considering ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
The backwater effect (i.e. adjustments in open-channel flow as a response to proximity of standing water) is used to predict down-dip changes in morphodynamics and consequent sediment distribution on fluvial systems. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
Abstract Source‐to‐sink sedimentary systems associated with volcanic rifted margins serve as important archives for basin development by recording lithospheric changes affecting the depositional systems. Distinguishing ...
(Doctoral thesis / Doktoravhandling, 2023)
The 21st century has already seen a series of major drought events in Europe. The high costs and multiple impacts highlight the importance of a holistic understanding of drought in order to improve preparedness and mitigation. ...
Evaluering av dagens metodikk for bruk av erosjon i faresonekartlegging i kvikkleireutsatte områder Restricted Access
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
Predicting near-future rainfall, defined as nowcasts, is essential to various industries and sectors, including aviation safety, agriculture, flood management, and the general public. Traditional nowcasts are calculated ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
Urban infrastructure traditionally relies on stationary rainfall intensity-duration-frequency (IDF) curves. However, this assumption is challenged by climate change and urbanization. Many studies tried to update IDF using ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
A recent work of Harikrishnan et al. [“Geometry and organization of coherent structures in stably stratified atmospheric boundary layers,” arXiv:2110.02253 (2021)] has revealed an abundance of hairpin-like vortex structures, ...
(Doctoral thesis / Doktoravhandling, 2023)
The below-ground geological storage of CO2 is seen as an important component to the long-term reduction of global greenhouse gas emissions. One of the difficult tasks is to find large storage locations with good seals ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Questions: Field-based ecosystem mapping is prone to observer bias, typically resulting in a mismatch between maps made by different mappers, that is, inconsistency. Experimental studies testing the influence of site, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Observed increases in runoff in permafrost regions have not only been associated with changes in air temperature and precipitation but also changes in hydrological pathways caused by permafrost thaw, however, the causes ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
The 2021 East Asia sandstorm began from the Eastern Gobi desert steppe in Mongolia on March 14, and later spread to northern China and the Korean Peninsula. It was the biggest sandstorm to hit China in a decade, causing ...
(Research report / Forskningsrapport, 2023)
This report compiles previously unpublished analytical data from two cores and an outcrop section of the sedimentary rocks of Middle-Upper Devonian age bundled in the Horn River Group in central Mackenzie Valley between ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
In the Northern Hemisphere, the mid-6th century was one of the coldest periods of the last 2000 years, which was initiated by volcanic eruptions in 536 and 540 CE. Here, we study the effect of this volcanic double event ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Abstract
In areas with high natural background radiation, underground cavities tend to have high levels of airborne radionuclides. Within mines, occupancy may involve significant exposure to airborne radionuclides ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
The sizes and shapes of ice crystals influence the radiative properties of clouds, as well as precipitation initiation and aerosol scavenging. However, ice crystal growth mechanisms remain only partially characterized. We ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Fast and accurate prediction of urban flood is of considerable practical importance to mitigate the effects of frequent flood disasters in advance. To improve urban flood prediction efficiency and accuracy, we proposed a ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Abstract. With the EU-funded PACE (Permafrost and Climate in Europe) project at the turn of this century, several deep boreholes (100 m+) were drilled in European mountain sites, including in mainland Norway, Svalbard and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
North-east Java is part of a large sedimentary basin containing hydrocarbon provinces that feature diffuse hydrothermal systems, mud volcanoes, and degassing sites. Seismic profiles acquired to explore the basin reveal a ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
Abstract Modelling hydrological process in the critical zone not only contributes to a better understanding of interactions across different Earth surface spheres but also holds significant practical implications for water ...
(Doctoral thesis / Doktoravhandling, 2023)
Geophysical imaging and inversion will always be associated with some degree of blurring and resolution loss. In this doctoral thesis project, we have therefore assessed different methods of analysing and improving the ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
Artificial neural networks exhibit significant advantages in terms of learning capability and generalizability, and have been increasingly applied in water quality prediction. Through learning a compressed representation ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
Due to a small proportion of observations, reliable and accurate flood forecasts for large floods present a fundamental challenge to artificial neural network models, especially when the forecast horizons exceed the flood ...
(Master thesis / Masteroppgave, 2023)
A number of studies have shown that the boreal forest in North America has experienced a nearly two-fold increase in burned area over the past 60 years, with a corresponding rise in the number of large fires. Permafrost ...
(Master thesis / Masteroppgave, 2023)
Denne masteroppgaven tar for seg bruk av modellverktøy for dimensjonering av steinspranggjerder mot steinsprang. Målet med oppgaven er å kartlegge utvalgte modellverktøys egnethet, samt hvilken betydning valg av av disse ...
(Master thesis / Masteroppgave, 2023)
The S1 (Sentinel 1) and S2 (Sentinel 2) missions use high-resolution satellite imagery to map the land surface over large swaths. With a minimum 5-day and 6-day repeat time, imagery over earths land can be quickly obtained ...
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
Hyperbolic Lagrangian Coherent Structures (LCS) are time-dependent manifolds that organize tracer patterns in chaotic flow systems. In two-dimensional flow systems, LCSs take the shape of one-dimensional curves which act ...
(Master thesis / Masteroppgave, 2023)
The sarcopterygian fishes are today represented by the two groups Actinistia (coelacanths) and Dipnoi (lungfish). Both groups survived the end-Permian mass extinction (EPME), after which the coelacanths rapidly achieved ...
(Master thesis / Masteroppgave, 2023)
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
Intelligent scheduling of urban drainage systems is generally regarded as a potentially sustainable strategy for urban flood management. To investigate the effectiveness of the intelligent scheduling strategy in mitigating ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Accurate prediction of snow avalanche runout-distances in a deterministic sense remains a challenge due to the complexity of all the physical properties involved. Therefore, in many locations including Norway, it has been ...
(Doctoral thesis / Doktoravhandling, 2023)
Changes to Earth’s climate redistribute masses of ice and water on Earth's surface. These loads cause the solid earth to deform, and it is commonly thought that this happens in two ways: ice age ice melting caused a long-term ...
(Master thesis / Masteroppgave, 2023)
Geological CO2 storage is an important initiative to mitigate climate change. Numerical models are valuable for estimating storage capacity and for risk assessment. Due to large scales involved, simplified models are ...
(Master thesis / Masteroppgave, 2023)
Haloformasjoner er optiske fenomener som kan sees på himmelen. Disse fenomenene oppstår på grunn av sollys som skinner igjennom tynne cirrusskyer. Cirrusskyer består av iskrystaller med ujevne former, i motsetning til ...
(Master thesis / Masteroppgave, 2023)
Kartlegging av kvikkleire ved bruk av elektromagnetisk metode. En studie fra Gjerdrum, Romerike. Restricted Access
(Master thesis / Masteroppgave, 2023)
Kartlegging av kvikkleire er essensielt for å identifisere kvikkleireområder, og dermed ta nødvendige grep for å hindre skred. Denne oppgaven undersøker om «towed transient electromagnetic system» (tTEM) kan effektivisere ...
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
Ozon spelar ei avgjerande rolle i atmosfæren både i stratosfæren og troposfæren. Denne avhandlinga undersøker troposfærisk ozon over det tropiske Atlanterhavet ved hjelp av observasjonar, trajektoriar og den norske ...
(Master thesis / Masteroppgave, 2023)
Carbon capture and storage (CCS) is an important technology developed to mitigate human-induced increase in atmospheric carbon dioxide concentrations. Injecting fluid carbon dioxide in geological reservoirs is one of the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Ikaite and pseudomorphs thereafter (“glendonites”) are a potentially powerful tool for palaeoclimatic studies, as a low-temperature proxy. However, much uncertainty still surrounds the drivers of ikaite formation, in ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Vegetation indices are corner stones in vegetation monitoring. However, previous field studies on lichens and NDVI have been based on passive sensors. Active handheld sensors, with their own light sources, enables high- ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
This study investigates the limitation of simplified stress path assumptions, particularly uniaxial strain conditions, in fault stability assessments for CO2 injection sites. We conducted a 3D geomechanics simulation for ...
(Master thesis / Masteroppgave, 2023)
Fen Carbonatite Complex was formed in different stages. The stage of søvite and dolomite carbonatite emplacement is believed to be accompanied by extensive deformation. However, the mechanism of carbonatite deformation is ...
(Master thesis / Masteroppgave, 2023)
This thesis addresses how minor faults affect CO2 migration. To achieve this goal, the study combines a detailed seismic interpretation of an isolated fault (F1) located in the Aurora CO2 storage site, complimented with ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Abstract. Ground temperatures in coarse, blocky deposits such as mountain blockfields and rock glaciers have long been observed to be lower in comparison with other (sub)surface material. One of the reasons for this negative ...
(Master thesis / Masteroppgave, 2023)
Large scale landslides in quick and sensitive clays have the tendancy toward retrogressive failure, sometimes with catastrphic consequences, such as in the 2020 Gjerdrum landslide. Modeling retrogressive slope failure using ...
(Doctoral thesis / Doktoravhandling, 2023)
The rise in extreme rainfall and subsequent flooding has become an increasing concern in our changing climate. This challenge impacts various aspects of our society, including infrastructure, agriculture, and safety. To ...
(Master thesis / Masteroppgave, 2023)
Acid rock drainage (ARD) represents a significant environmental concern arising from the excavation of sulfide-bearing rocks, which, upon exposure to atmospheric conditions, catalyzes sulfide oxidation, leading to the ...
(Master thesis / Masteroppgave, 2023)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Abstract. We investigate data from an acoustic Doppler current profiler deployed in a constricted ocean channel showing a tidally dominated flow with intermittent velocity extrema during outflow from the constriction but ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
A hyperspectral field sensor (FloX) was installed in Adventdalen (Svalbard, Norway) in 2019 as part of the Svalbard Integrated Arctic Earth Observing System (SIOS) for monitoring vegetation phenology and Sun-Induced ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Abstract The Arctic’s extreme environmental conditions and remoteness make it a complex and dynamic environment for maritime operators. We find that Arctic shipping has grown by 7% per year over the past decade, despite ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Abstract Changes in the Atlantic Meridional Overturning Circulation (AMOC) in the quadrupled CO 2 experiments conducted under the sixth Coupled Model Intercomparison Project (CMIP6) are examined. Increased CO 2 triggers ...
(Master thesis / Masteroppgave, 2023)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
The Barents Sea is one of the Polar regions where current climate and ecosystem change is most pronounced. Here we review the current state of knowledge of the physical, chemical and biological systems in the Barents Sea. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
A statistical analysis was applied to Northern Hemisphere land surface temperatures (1850–2018) to try to identify the main drivers of the observed warming since the mid-19th century. Two different temperature estimates ...
(Journal article / Tidsskriftartikkel / PublishedVersion, 2023)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
An experimental study of long interfacial gravity waves was conducted in a closed wave tank containing two layers of viscous immiscible fluids. The study focuses on the development in time of the mean particle drift that ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Abstract Despite the frequent occurrence of congested game fixtures in elite ice hockey, the postgame recovery pattern has not previously been investigated. The purpose of the present study was therefore to evaluate the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Two events share the stage as main drivers of the Cretaceous-Paleogene mass extinction—Deccan Traps volcanism, and an asteroid impact recorded by the Chicxulub crater. We contribute to refining knowledge of the volcanic ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Accurate mapping of greenhouse gas fluxes at the Earth’s surface is essential for the validation and calibration of climate models. In this study, we present a framework for surface flux estimation with drones. Our approach ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Global climate reanalyses and projections are available worldwide for the past and coming century. However, model grids remain too coarse to be directly relevant at the hillslope-scale (Fan et al., 2019), requiring adapted ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Abstract. The interannual variability of snow cover in alpine areas is increasing, which may affect the tightly coupled cycles of carbon and water through snow–vegetation–atmosphere interactions across a range of spatio-temporal ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Frost is damaging to plants when air temperature drops below their tolerance threshold. The set of mechanisms used by cold-tolerant plants to withstand freezing is called “hardening” and typically take place in autumn to ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Abstract Continental rifted margins can be associated with widespread and thick salt deposits, which are often formed during the final stages of rifting, prior to breakup. These salt‐bearing margins are typically characterized ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
The Hølonda area of the central Scandinavian Caledonides is a key for models of the Caledonian orogen owing to its Ordovician fauna of Laurentian affinity, now stranded on the Baltic side during opening of the North Atlantic. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
An operational ocean and sea ice forecast model, Barents-2.5, is implemented for short-term forecasting at the coast off northern Norway, the Barents Sea, and the waters around Svalbard. Primary forecast parameters are sea ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
We held the MagellanPlus workshop SVALCLIME “Deep-time Arctic climate archives: high-resolution coring of Svalbard's sedimentary record”, from 18 to 21 October 2022 in Longyearbyen, to discuss scientific ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
The discipline of structural geology is taking an advantage of compiling observations from multiple field sites to comprehend the bigger picture and constrain the region's geological evolution. In this study we demonstrate ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Unravelling past, large-scale ocean circulation patterns is crucial for deciphering the longterm global paleoclimate. Here we apply numerical modelling to reconstruct the detailed paleobathymetry-topography of the southwestern ...
(Master thesis / Masteroppgave, 2023)
The Ågskardet lithium pegmatite, part of the Meløy-Gomfjord pegmatite field in Nordland, is emplaced in the Caledonian Rödingsfjället nappe complex between two tectonic windows exposing Svecofennian granite gneisses. It ...
(Master thesis / Masteroppgave, 2023)
There has been a steady increase of marine activity throughout the Arctic Ocean during the last decades, and maritime end users are requesting skillful high-resolution sea ice forecasts to ensure operational safety. Different ...
(Master thesis / Masteroppgave, 2023)
The Arctic is warming at a greater rate than the global mean, and resulting increase in melt and net mass loss from glaciers and ice caps is contributing to global sea-level rise. Mass loss from runoff is influenced by ...
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
This study analyses automatically detected avalanche deposits in Sentinel-1 SAR images by the SatSkred algorithm from the three winter seasons 2018/19, 2019/20 and 2020/21. SatSkred allows for near-real-time automatic ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
The atmospheric boundary layer is particularly challenging to model in conditions of stable stratification, which can be associated with intermittent or unsteady turbulence. We develop a modelling approach to represent ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Variability in sea ice conditions, combined with strong couplings to the atmosphere and the ocean, lead to a broad range of complex sea ice dynamics. More in-situ measurements are needed to better identify the phenomena ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Permafrost and glaciers in the high Arctic form an impermeable ‘cryospheric cap’ that traps a large reservoir of subsurface methane, preventing it from reaching the atmosphere. Cryospheric vulnerability to climate warming ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Vegetation has a profound impact on climate through complex interactions and feedback loops, where especially regulation of albedo, the ratio of reflected to incoming solar radiation, is important at high latitudes. How ...
(Master thesis / Masteroppgave, 2023)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Dynamic Global Vegetation Models (DGVMs) provide a state-of-the-art process-based approach to study the complex interplay between vegetation and its physical environment. For example, they help to predict how terrestrial ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
The volatile concentrations of the martian mantle and martian magmas remain important questions due to their role in petrogenesis and planetary habitability. The sulfur and chlorine concentrations, and their spatial ...
(Master thesis / Masteroppgave, 2023)
The Draupne Formation is dominated by deep marine shales and forms an important sealing unit for future CCS operation in the North Sea. Meanwhile, seismic mapping has clearly shown the unit to be heterogeneous in lithology, ...
(Master thesis / Masteroppgave, 2023)
Quick clay landslides may have major consequences on human civilization and are responsible for some of the most damaging natural disasters in Norway. Quick clay hazard zones in Norway are mapped as either low-, medium-, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Inspired by geological structures formed by magmatic intrusions that deform the Earth's crust, we investigate the elastohydrodynamic growth of a viscoplastic blister under an elastic sheet resting on a prewetted substrate. ...
(Master thesis / Masteroppgave, 2023)
Providing temporal data of potential rock slope instabilities is important for assessing their dynamics and improving projections. Acquiring slope movement data prior to the advent of satellite radar can often only be found ...