In situ weathering of the Mesoproterozoic, hornblende- and biotite-rich Rønne granite at Nygård kaolin pit provides a well preserved, Jurassic to Early Cretaceous saprolite section on Bornholm. Fresh Rønne granite could ...

We present a multi-temporal digital inventory of Svalbard glaciers with the most recent from the late 2000s containing 33 775 km2 of glaciers covering 57% of the total land area of the archipelago. At present, 68% of the ...

The Stø and Nordmela Formations of Early to Middle Jurassic age are represented in wells 7119/12-1, 7120/7-1and 7120/7-3 located in the Tromsø/Hammerfest transition zone area and in wells 7120/8-1, 7120/9-1, 7121/4-1, ...

Field work for this thesis was conducted in Andreè Land, North-East Greenland Caledonides (73,35 N, 26,15 W), a region dominated by the Hagar Bjerg-Niggli Spids Thrust Sheet. The thrust sheet is composed of three main ...

Bølgemekanismer i havet slik som ”Stokes drift” bidrar til å systematisk forflytte store mengder vannpartikler i en bestemt retning over store avstander. Stokes drift har blitt studert grundig for overflatebølger for ...

The introduction of the thesis consists of a brief description of the scope and objectives, some background information on storage mechanisms for CO2 and the models we applied for addressing the necessary questions for ...

This study deals with the diagenesis and reservoir quality of deeply buried (>4 km) Upper Jurassic sandstones from the Central Graben, North Sea. Petrophysical and petrographical analysis has been done on the cored interval ...

The international research project RECONCILE has addressed central questions regarding polar ozone depletion, with the objective to quantify some of the most relevant yet still uncertain physical and chemical processes and ...

Chronic liver disease is recently becomes the most sever disease to residents of northern Ethiopia (Shire area) which was started 1980. Pervious health study reviles that this liver disease is not caused by virus and there ...

The Ritland structure is the remnants of a 2.7 km diameter, 350 m deep, Early to Middle Cambrian marine impact crater, located in Hjelmeland, western Norway. The impact origin of this structure was proposed in 2001 based ...

Biochar addition to agricultural soils can improve soil fertility, with the added bonus of climate change mitigation through carbon sequestration. Conservation farming (CF) is precision farming, often combining minimum ...

Satellite measurements of atmospheric trace gases have proved to be an invaluable tool for monitoring the Earth system. When these measurements are to be used for assessing tropospheric emissions and pollution, as for ...

Regional assessment studies for CO2 storage plays have been carried out in the Norwegian-Danish Basin of the Central North Sea and in the Skagerrak-Kattegat area. The development of the reservoir models is a part of an ...

We apply a physically based coupled surface energy balance and snowpack model to a site close to the equilibrium line on Austfonna ice cap, Svalbard, over the 2004–08 melt seasons, to explain contributions to the energy ...

As part of the Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP), we evaluate the historical black carbon (BC) aerosols simulated by 8 ACCMIP models against observations including 12 ice core records, ...

[1] Black carbon (BC) and other light-absorbing particles deposited on snow and ice are known to perturb the surface radiative balance. There are few published observations of the concentration of these particles in the ...

Arktis har vært, og er fortsatt, et utfordrende område for numeriske modeller for studier av fenomener knyttet til skyer. Mye av dette skyldes at skyer ikke blir simulert godt nok. Spesielt det å simulere underkjølt skyvann, ...

The production of world phosphate rock might reach to its peak before mid-century due to the potential demand for phosphate fertilizer consumption especially in developing countries, and as a result this could eventually ...

Hensikten med dette studiet har vært å undersøke norske sensitive leirer med hensyn til mineralogien. Studiet har blitt utført i samarbeid med det tverretatelige programmet Naturfare - Infrastruktur, Flom og Skred (NIFS). ...

Per- and poly-fluorinated compounds (PFCs) are a large group of anthropogenic chemicals that holds unique surfactant properties. PFCs have been used in a wide range of domestic, commercial and industrial products, and have ...

This study is located in the innermost part of Van Mijenfjorden, in the bay of Braganzavågen; close to the mining town of Svea. Two seasons of field work have been conducted during summer 2011 and 2012. During this field ...

Temperaturtilhøva i Gråsubreen og Juvfonne, to ismasser i Jotunheimen, har blitt kartlagt. Istemperaturen har blitt målt direkte gjennom innsmelting av termistorkablar. Termistorkablane vart installert i april 2012, og ...

This study deals with the weathering of basement, resulting particle formation, depositional conditions, provenance and mode of transportation of Triassic/Jurassic strata in evolving rift basin setting in Stord Basin. Data ...

The Bjørnøya Fan is located at the SW Barents Sea continental margin and consists of a succession of glaciomarine sediments up to 3.5-4 km in thickness. The evolution of the Bjørnøya Fan is closely related to the history ...

The Late Cenozoic outbuilding in the northern North Sea and southeastern Norwegian Sea demonstrates strong relationship between uplift, erosion, subsidence, variations in relative sea level, basin infill, glacial dynamics ...

Målet med dette arbeidet er å finne ut om moderne numeriske atmosfæremodeller klarer å varsle underkjølt skyvann og underkjølt regn. I den mye brukte atmosfæremodellen WRF (Weather Research and Forcasting [Skamarock et al. ...

High geomorphic and climatic variability in Arctic coastlines makes evaluating future coastal erosion in a changing climate a challenge. Predictions must, among other things, incorporate modifications to sediment supply ...

This study has integrated palynofacies and palynological analyses of samples from the Northern Carnarvon Basin (NCB) to ascertain sea level, vegetation and climate variations of the North West Australian shelf during the ...

Snow avalanches are a natural phenomenon occurring in snow covered alpine areas all over the world. A complex process combining gravity, topographical conditions, physical and mechanical properties of snow and meteorological ...

This study focuses imaging reservoir quality of SW Loppa High using five exploration wells. The study area is located at the northern vicinity of the Hammerfest Basin, Norwegian Barents Sea. The geology of the Norwegian ...

At the Cenomanian-Turonian (~94 Ma) boundary, sudden and major disruptions in the oceanic systems occurred. The disruptions led to the establishment of worldwide oceanic anoxia and deposition of organic-rich sediments. ...

Sommeren 2007 og 2011 ble flere store jordskred utløst i Arnegårdslia i Nes kommune, Hallingdal, noe som førte til store materielle skader. Målet med denne oppgaven har vært å undersøke jordskredaktiviteten i denne dalsiden ...

The redistribution of seasonal snow is an integral part of the processes controlling soil temperature, permafrost, soil moisture and vegetation distribution, and plays an important role in the planning of infrastructure ...

Marine Seismic Interference (SI) occurs when several seismic vessels operate in close proximity, and the interfering energy from one vessel is recorded as interfering noise by another. Generally, SI is removed by various ...

The main focus of this study is to image reservoir quality of the ‘Alka discovery located in the southern part of the Hammerfest Basin, Norwegian Barents Sea. A total of five exploration wells (7120/12-1, 7120/12-2, ...

This study describes weathering pattern in saprolites of the Vånga Granite along various profiles at Ivö Klack, Scania (southern Sweden) and provides a model against which paleo-chemical weathering of ancient profiles (e.g. ...

Present-day subduction zones exhibit intense seismic activity in the descending oceanic lithosphere. The mechanism behind shallow earthquakes is generally well-understood and related to frictional stick-slip on fault planes. ...

Many different palynological, sedimentological and mineralogical data were been used in this research in order to reconstruct the paleoenvironmental changes at the Triassic/Jurassic boundary in Restental. Four different ...

Snøhvit field is the only field in production in Norwegian Barents Sea. Most of the hydrocarbons are gas. Complicated tectonic history of this field resulted in low matured source rocks, highly faulted structures, low ...

Ei masteroppgåve som beskriv mineralogien og petrologien i eklogitten og årene i Engebøfjellet-eklogitten i Sunnfjord, Noreg. Oppgåva inkluderar XRF bulk-analyser, kvantitative XRD bulkanalyser, mikrosondeanalyser, ...

An exotic pegmatite classified as a rare-element gadolinite type amazonite pegmatite is situated in Paleozoic sedimentary rocks, and associated with the peralkaline ekerite granites in the Permian Oslo Region. The amazonite ...

In this thesis a new approach, called THEAMTM, is presented. The THEAMTM methodology is a non-invasive tunnel health monitoring method using active seismic. The method incorporates geophysical seismic analysis methods and ...

Knowledge of water-surface velocities in rivers is useful for understanding a range of river processes. In cold regions, river-ice break up and the related downstream transport of ice debris is often the most important ...

The following thesis is the culmination of a two year study on Svalbard, an archipelago located in the high Arctic. The main purpose of this thesis is to investigate the presence of a karst lake system and its implications ...

This article focuses on the effect of dispersion in the field of tsunami modeling. Frequency dispersion in the linear long-wave limit is first briefly discussed from a theoretical point of view. A single parameter, denoted ...

Thermal modeling is a powerful tool to infer the temperature regime of the ground in permafrost areas. We present a transient permafrost model, CryoGrid 2, that calculates ground temperatures according to conductive heat ...

Arctic regions are generally nutrient limited, receiving an extensive part of their bio-available nitrogen from the deposition of atmospheric reactive nitrogen. Reactive nitrogen oxides, as nitric acid (HNO3) and nitrate ...

Estimates of the relative motion between the Hawaiian and Louisville hot spots have consequences for understanding the role and character of deep Pacific‐mantle return flow. The relative motion between these primary hot ...

Sorted soil circles are a conspicuous form of periglacial patterned ground. Numerical modelling suggests that these features develop from a convection-like circulation of material in the active layer of permafrost. The ...

Viscous convection within the mantle is linked to tectonic plate motions and deforms Earth’s surface across wide areas. Such close links between surface geology and deep mantle dynamics presumably operated throughout Earth’s ...

The Laccadive–Chagos Ridge and Southern Mascarene Plateau in the north-central and western Indian Ocean, respectively, are thought to be volcanic chains formed above the Réunion mantle plume1 over the past 65.5 million ...

Glacier mass balance in Norway is only observed over a small portion (15%) of the glacierized surface and only for short time periods (10 years) for most sites. To provide a comprehensive overview of the temporal mass-balance ...

The impact of black carbon (BC) aerosols on the global radiation balance is not well constrained. Here twelve global aerosol models are used to show that at least 20% of the present uncertainty in modeled BC direct radiative ...

Skredfarekartlegging i Norge blir i dag i stor grad utført av eksterne selskaper på oppdrag fra Norges vassdrags- og energidirektorat (NVE), noe som fører til varierende tolkning av retningslinjer og detaljnivå. Målet med ...

We report on the AeroCom Phase II direct aerosol effect (DAE) experiment where 16 detailed global aerosol models have been used to simulate the changes in the aerosol distribution over the industrial era. All 16 models ...

A new map of Jerlov’s optical water types in the Nordic Seas and adjacent waters at 139 locations, as well as a table with statistical and geographical properties of the vertical attenuation coefficient of downward irradiance ...

[1] Marine cloud brightening through sea spray injection has been proposed as a method of temporarily alleviating some of the impacts of anthropogenic climate change, as part of a set of technologies called geoengineering. ...

[1] The hydrological impact of enhancing Earth's albedo by solar radiation management is investigated using simulations from 12 Earth System models contributing to the Geoengineering Model Intercomparison Project (GeoMIP). ...

[1] Among proposed mechanisms for counteracting global warming through solar radiation management is the deliberate injection of sea salt acting via marine cloud brightening and the direct effect of sea-salt aerosols. In ...

Cirrus clouds, thin ice clouds in the upper troposphere, have a net warming effect on Earth's climate. Consequently, a reduction in cirrus cloud amount or optical thickness would cool the climate. Recent research indicates ...

[1] Analysis of surface and atmospheric energy budget responses to CO2 and solar forcings can be used to reveal mechanisms of change in the hydrological cycle. We apply this energetic perspective to output from 11 fully ...

Glacio-meteorological investigations were conducted on Storbreen glacier, as an attempt to assess the relationship between meteorological conditions at the glacier surface and its mass balance. Primary focus was set on the ...

Physical vulnerability is a key parameter in risk estimation. It defines the level of damage given that the hazard is realized, and hence translates hazard levels into risk levels. The quantitative assessment of vulnerability ...

The aims of this study were to assess the depositional and ecological developments of Drammensfjorden, SE Norway, under pre-anthropogenic influence and attempt to define recent conditions within the fjord, which may have ...

Drinking water supplies are based on ground water resources all over the world. At some localities problems with higher concentrations of iron and manganese found in ground water. These higher concentration of these metals ...

The study presented focuses on mapping and interpretation of the Caledonian structures on Hovedøya and Lindøya, in the inner Oslofjord. The bulk tectonic caledonian transport direction and structures within the study area ...

A total of seventy reservoir core samples from nine wells of the Mid-Norway and the Barents Shelf were geochemically analyzed to compare the composition, alteration effects, maturation and organic facies. The analytical ...

The Sælabonn Formation belongs to the Bærum Group, and is recognized in the western part of the Oslo Region, from Mjøsa in the north to Skien in the south. The Sælabonn Formation is the lowermost unit in the Silurian ...

Svartodden leddet i Huk Formasjonen ved Slemmestad, Buskerud, har blitt undersøkt for å beskrive avsetningsmiljøet i området da sedimentene ble avsatt under tidsperioden Ordovicium. Svartodden leddet er rikt på endoceratide ...

Scandinavian Mountain Range is located at the continental margin of the Eurasian plate. This area is part of the Baltic shield so topography is expected to be generally low. But this is not the case here. In South western ...

Wildfires are a source of major perturbations in the earth-atmosphere system. Between 1997 and 2008, an area of roughly 4 · 106 km2 has been burned each year. Among other species, wildfire aerosols consist of black carbon ...

Geologically, Barents Sea consists of platform areas and basins, covered by significant amounts of sedimentary rocks ranging from Paleozoic to Cenozoic age. Several phases of uplift have been occurred, highly influenced ...

Forty-eight (48) core samples from well 35/4-1, 6610/3-1 and well 6610/2-1S were obtained from the North Sea and the Norwegian Sea. These wells are classified by NPD as dry. These core samples have been studied geochemically, ...

Shooting in an overlapping fashion is called blended or simultaneous acquisition. This can make acquisition efficient and economical. However, deblending (i.e. the process of separating the blended data) of data can be ...

On 10th of June 2011 a high amount of precipitation fell on southern Norway, the result of this precipitation in a combination with increased snowmelt cause a flood, the aspects of the flooding will not be discussed here ...

Snøhvit field is located in the SW Barents Sea and comprises a reservoir in Lower to Middle Jurassic sandstones of Stø Formation containing gas with thin oil lag. The sandstones of Upper Triassic to Lower Jurassic Nordmela ...

Groundwater wells are often clogged by incrustation, which has a negative impact on well specific capacity. Chemical and biological incrustation formed by precipitation of minerals in the well reduces the open area of slots ...

The Albatross discovery is located approximately 140 km northwest of Hammerfest (city of midnight sun), Norway in the central part of Hammerfest Basin, SW Barents Sea. The Albatross discovery included within Snøhvit field ...

The main goal of this thesis is to make a detailed lithostratigraphic map of Gressholmen, Rambergøya, Heggholmen and Bleikøya, using an improved topographical database. Upper Ordovician to Lower Silurian sediments are ...

Abstract The present study involves 1D basin modelling of two (2) wells from the Haltenbanken Area (the Midgard well 6407/4-1 and the Smørbukk well 6506/12-9S), by employing BAS software. The core objective is to estimate ...

The NE-SW and N-S trending, Bjørnøyrenna Fault Complex is obviously belongs to an extensional regime. It is comprised of three main master faults (MF1, MF2 & MF3) in the study area. This large array of master faults further ...

Structural analysis of the Knølegga Fault Complex has been done using 2D seismic reflection data set in order to understand the fault geometries, fault associated features, fault segmentation and temporal evolution of the ...

Marine seismic acquisition represents one of the most used geophysical exploration techniques employed in the petroleum industry today. However, one major challenge is that the meaningful part of the data will be distorted ...

The Leirdjupet Fault Complex is located in the southwestern Barents Sea and trends N-S from the Loppa High towards the Stappen High between 73°-73°55'N at 21°E. The fault complex divides the Bjørnøya Basin into a deep ...

A grid of 2D regional seismic lines from six different surveys together with Bouguer gravity anomaly data and borehole data sets have been used to get an insight of the structural development of the Ringkøbing-Fyn High and ...

The deeply buried Upper Jurassic sandstone reservoirs of the South Viking Graben are differentiated by highly variant reservoir quality. A combined petrophysical and petrographical approach is incorporated to analyze these ...

In the Bahi-Manyoni basin in Central Tanzania the geology and climate of the area are the main factors influencing the water chemistry and quality. Most water samples are saturated with respect to quarts, dolomite, calcite, ...

Seismic data contains reflections along with diffractions. Diffractions in seismic data are related to different features like faults, fractures, pinchouts and rough edges of salt bodies. It follows that suppression of ...

Anthropogenicgreenhouse gases have become widely accepted as the primary cause of global warming. With increasing emissions rates, warming is set to continue and baring any drastic change in mitigation policies, the rate ...

Detailed structural analysis of the Troms-Finnmark Fault Complex is implemented in order to understand the associated structural configuration and the stress apparatus responsible for the present day architecture of the ...

The study deals with the diagenesis and reservoir quality prediction of deeply buried Rotliegend sandstone from Northern Permian Basin (NPB) in the Central Graben. Cored intervals from two wells (1/3-5 and 2/10-2) have ...