Search
Now showing items 1-32 of 32
(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)
(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)
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, 2022)
Temperature inversions prevents vertical mixing and thereby the distribution and dilution of pollutants, and can cause health hazardous concentrations of NO2 to accumulate. Policies have been implemented to reduce the ...
(Master thesis / Masteroppgave, 2022)
En lineær modell, utviklet fra gruntvannsteori, evnet å kvalitativt gjenskape sirkulasjonen til en kompleks og høyoppløst havmodell om lukkede f /H-konturer ved høye breddegrader. De eneste variablene den lineære modellen ...
(Master thesis / Masteroppgave, 2022)
(Master thesis / Masteroppgave, 2022)
The Arctic is warming much faster than the global average, a phenomenon referred to as Arctic Amplification (AA). Observations reveal that profound climate change in the Arctic is not a future phenomenon, but is already ...
(Master thesis / Masteroppgave, 2022)
Prognosane for global oppvarming og den særskild forsterka oppvarminga i Arktis er ømfintlege for korleis klimamodellar representerer fasen til låge skyer. Dette utgjer ei uvisse for modellane. For at is skal dannast i ...
(Master thesis / Masteroppgave, 2022)
The Greenland Ice Sheet (GrIS) has been losing mass since the 1990s as a direct consequence of rising temperatures. Greenland has been projected to continue to lose mass at an accelerating pace throughout the 21st century, ...
(Master thesis / Masteroppgave, 2022)
As part of the global climate change the Arctic is warming rapidly. The surface energy budget is a central aspect of the Arctic system with sea ice growth and melt. However, the representation of the surface energy budget ...
(Master thesis / Masteroppgave, 2021)
The aeolian dust deposits over the Chinese Loess Plateau (CLP) contain valuable information about past environmental changes in Asia. Unlocking this information requires understanding the East Asian dust cycle (EADC) and, ...
(Master thesis / Masteroppgave, 2021)
Ice crystals, as an important component of clouds, have a strong influence on cloud radiative properties and precipitation formation. Moreover, ice crystal habits are controlled by the environment (temperature and humidity) ...
(Master thesis / Masteroppgave, 2021)
Motivated by the possible connection between the many submarine canyons and the high bioproductivity in the Lofoten-Vesterålen (LoVe) ocean region, this study investigates the flow over an idealized continental slope with ...
(Master thesis / Masteroppgave, 2021)
To study polar amplification (PA), two idealized energy balance models are constructed: a dry-diffusive down-gradient model (diffusion model) and a model where horizontal heat fluxes are configured in such a way as to ...
(Master thesis / Masteroppgave, 2021)
(Master thesis / Masteroppgave, 2021)
This study is aimed to investigate water exchanges in the inner Oslofjord, between the Bunnefjord and the Vestfjord. A 46-year historical dataset of salinity and temperature shows that the surface-mixed layer is about 20 ...
(Master thesis / Masteroppgave, 2021)
Motivated by the low confidence in regional storm track changes, this study investigates the winter North Atlantic extra-tropical storm track for the NorESM2-MM model in phase 6 of the Coupled Model Intercomparison Project. ...
(Master thesis / Masteroppgave, 2020)
(Master thesis / Masteroppgave, 2020)
The role of sea ice in the climate response after the 536 and 540 CE volcanic eruptions hasbeen investigated through MPI-ESM simulations with imposed volcanic forcing. There is aclear response in the Arctic sea-ice cover ...
(Master thesis / Masteroppgave, 2020)
(Master thesis / Masteroppgave, 2020)
Periods of unusually high or low temperatures have a significant impact on both nature and society at all times of the year. A possible change in frequency or persistence of such events would impact the wildlife as well ...
(Master thesis / Masteroppgave, 2020)
(Master thesis / Masteroppgave, 2020)
Accurate forecasts of very low temperatures in stable boundary layer (SBL) conditions in arctic areas remain a challenge in numerical weather prediction. These forecasts are of great importance both for local communities ...
(Master thesis / Masteroppgave, 2020)
(Master thesis / Masteroppgave, 2020)
Abstract: Increased anthropogenic emissions of nitrogen oxides, carbon monoxide, volatile organic compounds and methane causes production of ozone in the troposphere, particularly in the northern hemisphere. This causes ...
(Master thesis / Masteroppgave, 2020)
This master study addresses the monthly evolution from April to September of the extremeheat wave that occurred in Europe in 2018. Heat waves cause serious hazards related to regionaleconomics, ecosystems, human health and ...
(Master thesis / Masteroppgave, 2020)
The tropical tropopause layer TTL acts as the gateway for water vapor and other chemical tracers to the stratosphere, and is important for the chemical composition and radiative balance. In this thesis, two reanalyses from ...
(Master thesis / Masteroppgave, 2020)
The Atlantic meridional overturning circulation (AMOC) is projected to weaken under global warming. This study investigates this weakening overturning and addresses the question regarding which aspects lead to such a ...
(Master thesis / Masteroppgave, 2020)
(Master thesis / Masteroppgave, 2020)
A transition to renewable energy is needed to mitigate climate change. This transition has been led by wind energy, and it is expected to continue to be the largest source of renewable energy through to 2030 (Sawyer et ...
(Master thesis / Masteroppgave, 2020)
Helicopters are sometimes hit by lightning when flying offshore along the coast of Norway. Often, the helicopter’s presence is what triggers the lightning strike, and this phenomenon is called Helicopter Triggered Lightning ...