Alum- and black shales are lithologies rich in sulphides and trace elements including uranium, and may pose harm to the environment during weathering. Acidification of surface- and groundwater and swelling may occur. During ...

Våtsnøskred og sørpeskred er to naturfarer som utgjør fare for liv og har store samfunnsøkonomiske konsekvenser i Norge. Begge skredtypene utløses normalt på grunn av at vanninnholdet i snødekket øker, slik at snødekkets ...

Shallow landslides in soils, such as debris flows and debris avalanches, are expected to increase in frequency and intensity in large parts of Norway. The simulation, characterization and statistical analysis of such events ...

This thesis deals with the validation of the NGU susceptibility map for debris slides/avalanches and small to medium sized debris flows. The susceptibility model developed by NGU is a nation-wide model, predicting source ...

Steinsprang er en geofare definert ved enkeltblokker av stein som løsner fra bratte fjellsider og som beveger seg nedover fjellsiden enten ved å falle, sprette, rulle eller gli. Steinsprang tar ikke mange liv, men kan ...

The thesis quantifies the peak ground acceleration (PGA) required to cause large rock avalanches in the western rangefront of the Southern Alps in New Zealand, which will improve understanding of the hazard posed by ...

Beregning av dimensjonerende flomverdier (20-1000-årsflommer) er et krav ved bygging av dammer, infrastrukturer og arealplanlegging. Robuste og pålitelige beregninger er viktig for korrekte risikovurderinger og for å ta ...

Nøyaktig beregning av romlig lokal snøfordeling i høyfjellet gir en betydelig samfunnsgevinst og er av spesiell interesse for vannkraftproduksjon, flom- og skredvarsling. Det stiller krav til utvikling av nye forbedrede ...

Med utgangspunkt i NVEs 59 registrerte sørpeskred i Noreg i perioden 2010 til 2016 er denne masteroppgåva eit terskelstudie med formål å avdekke tersklar for regional varsling av sørpeskred. Oppgåva har teke føre seg NVEs ...

Norge har et terreng som fører til at landet er disponert for masseførende skred, blant annet sørpeskred. Sørpeskred er definert som en hurtig massebevegelse av vannmettet snø med et vanninnhold over 15%. Disse skredene ...

Mining activity has been the main support for the economy in Folldal, Hedmark, during more than two centuries due to the extraction of copper, zinc and sulfur that rebounded in the industrial and social development of the ...

CO2 storage is considered as one of the most promising solutions to overcome global increase in temperature. In order to ensure the safety of the sequestrated CO2, several geophysical monitoring methods are required, among ...

Capping, the placement of uncontaminated (clean) sediments over contaminated sediments, has been practiced in the last three decades as ecologically friendly and cost efficient remediation technique. The polluted, formerly ...

Assessment of advantages and limitations of rockfall models require in-depth-knowledge in the rockfall field, testing of model with field investigated data, as well as understanding rockfall mechanics. This thesis intends ...

Denne oppgaven tar for seg flom- og jordskredhendelser i Valdres, langs Randsfjorden og fylkesveiene i Etnedalen, på Østlandet. Begrepene jordskred og flomskred skaper uklarheter ved utførelse av fare- og risikoanalyser i ...

Land use changes increases availability of necessities, but there is also a risk of damaging or depleting natural resources. Groundwater, which is one of the most important natural resources, is dependent on having a balance ...

The development and application of a workflow for photogrammetric analysis of landslides.

Magma transport in volcanic plumbing systems induces surface deformation, which can be monitored by geodetic techniques, such as GPS and InSAR. These geode- tic signals are commonly analyzed through geodetic models in order ...

The aim of the thesis was to examine the potential of synthetic pyroaurite to remove lead(II) from contaminated water. This study was based upon column experiments run in duplicate at room temperature. Heavy metals, many ...

The municipal waterworks in Ånes supplies 380 people. The wells are situated about 60 meters west of Landåselva River in a delta at the north end of Lake Randsfjorden. The waterworks has experienced problems with contamination, ...

Shooting range soils contain large amounts of copper (Cu), zinc (Zn), lead (Pb) and antimony (Sb) from spent bullets. They are sources of contamination for soil, groundwater and surface water, and may pose a risk to the ...

The discharge of contaminated industrial and mining wastes may contain heavy metals. Water contamination by these heavy metals can cause significant environmental and medical issues. Over the years researchers have tried ...

Per- and poly fluorinated compounds (PFCs) is a large group of chemicals with a strong variation in chemical composition. They have previously been used in extensive amounts which has caused wide spreading in the environment. ...

Serpentinization of oceanic lithosphere has long been a study object among the geologist. It has a important role in various aspects. Geologically, it changes the density, rheology and seismic velocity of the crust. The ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

Understanding the controlling factors and elucidating the requirements and conditions necessary for carbon dioxide (CO2) storage by mineral trapping (or carbonation) is of paramount interest for any technical application ...

Water scarcity is a striking issue all over the world because of increased water utilization resulting from growing population. Prevention and sustainable usage of ground water is the keen concern of every government these ...

Det er kjent at ozon har skadelig effekt på både mennesker og vegetasjon, i tillegg til å ha en negativ effekt på klimaet gjennom et direkte strålingspådriv. I tillegg har nyere studier vist at ozon også har en inndirekte ...

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 ...

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 ...

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 ...

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 ...

Debris flows pose serious hazards in the mountainous area of central southern Norway. On 10th June 2011, a great number of debris flows occurred in Gudbrandsdalen valley. The intense precipitation triggered most of the ...

Norway is a country that is frequently exposed to extreme weather events (EWEs).Norway experienced EWEs every year. The characteristic of extreme weather events is that they occur infrequently and normally result in ...

The consequence of dam failure is one of the major hazard to human life as well as to infrastructure. Huge flood waves produced by a failure of dam may have enough capability to destruct some stronger structures like power ...

Det finnes mye skredutsatt infrastruktur i Norge, og det er et behov for kartlegging av skredbaner ved lokaliteter hvor man kjenner til at det regelmessig går skred. Dette både for bedre å kunne vurdere snøskredfaren i ...

I senere tid har nedbørsestimater ved bruk av satellitter (SPE – Satellite Precipitation Estimates) blitt vanlig i bruk tilknyttet forskning relatert til f.eks. hydrologi. Dette er data i høy oppløsning, som registreres ...

Abstract The influence of acetate ion on the calcite precipitation kinetics has been studied using a continuously stirred mixed flow reactor supplied with calcium carbonate supersaturated solution seeded by Iceland spar ...

This thesis contains modelling study of groundwater flow in the Chikwawa district, lower Shire Area in the southern regions of Malawi, in order to test out the working hypothesis that deeper groundwater circulation and ...

The Svelvik ridge was approved by local authorities as a CO2 field lab in 2008 and the appraisal phase for this project was completed in the summer of 2010. This operation gave a valuable insight of the subsurface and ...

A lot of concern has been raised by individuals and organizations regarding the menace associated with heavy metal contamination of marine sediments in Norway. This has necessitated the remediation of heavy metal contaminated ...

This thesis provides an assessment of the application of terrestrial LiDAR for rock mass characterisation and support design in drill and blast tunnels. The study includes establishing an appropriate work-flow for data ...

The aim of this study was to assess the temporal development of the environment in Bunnefjord, the innermost part of Oslofjord (SE Norway), define its reference conditions, and link the results to other studies. A 55 cm ...

The Helgoland mud area in the German Bight is one of few sediment depocenters in the North Sea. It is therefore a suitable site to study long-term effects of anthropogenic pollution and/or natural environmental change. The ...

ABSTRACT The Brumunddal sandstone is located some 150 km north of Oslo in the county of Hedemark in Southeastern Norway. Groundwater is a major resource of water both for consumption and agricultural use in Brumunddal. ...

Bhutans geologi er preget av Himalaya-regionens karakteristiske skyveforkastninger og høye relieff. Den røffe topografien styrer de klimatiske. Bhutan har tropisk klima i sør og kaldere klima i nord. Kraftig forvitring av ...