Blar i Geophysical Institute på dokumenttype "Doctoral thesis"
Viser treff 1-20 av 107
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Advancing the Capabilities of Numerical Weather Prediction - On the Utility of Individual Tendency Output
(Doctoral thesis, 2022-11-18)Parametrisering i numeriske værmodeller representerer finskalaprosesser i atmosfæren på subgridnivå. Disse atmosfæriske prosessene inkluderer turbulens, stråling og dråpeformasjon i skyer. Enhver parametrisering er en ... -
Air-Sea Interaction in Biophysical Modeling: With focus on Northeast Arctic Cod
(Doctoral thesis, 2019-02-15)The focus of this thesis is on upper ocean dynamics and the interactions between the atmosphere and the oceans in relation to early life stages of Northeast Arctic cod. The main spawning sites of Northeast Arctic cod are ... -
Arctic Ocean carbon biogeochemistry under climate change and ocean acidification
(Doctoral thesis, 2013-05-10)Human-induced CO2 emissions to the atmosphere cause climate change and ocean acidification. The strongest indicators of climate change and ocean acidification are expected to be found in the Arctic Ocean (AO). The AO area ... -
The Arctic Ocean in a Fresh and Warm Future
(Doctoral thesis, 2016-10-28)The Arctic Ocean remains one of the least known ocean regions due to its remote location, year-round sea ice cover, and harsh weather conditions. Today, knowledge of the Arctic atmosphere-sea ice-ocean system increases in ... -
Arctic sea ice altimetry - advances and current uncertainties
(Doctoral thesis, 2014-06-11)One of the most prominent features of global climate change is the reduction in Arctic sea ice thickness. The main tool to derive sea ice thickness on an Arctic wide scale is altimetry from satellites, yet current estimates ... -
Arctic-Atlantic Climate Variability and Predictability in Observations and in a Dynamical Prediction System
(Doctoral thesis, 2023-11-03)Hovedfokuset i denne doktorgradsoppgaven er å forstå dekadisk klimaprediktabilitet (forutsigbarhet i klimaet) for å forbedre klimamodeller og klimavarsel. Klimavarseling viser lovende resultat, men det er fremdeles ... -
Aspects on interactions between mid- to high latitude atmospheric circulation and some surface processes
(Doctoral thesis, 2006-06-08)The Arctic is a hot topic in Climate Research. A large number of signs of a warming Arctic Climate have been identified the latest years. This is of major concern in light of the increasing atmospheric content of greenhouse ... -
Assessing the Norwegian Offshore Wind Resources: Climatology, Power Variability and Wind Farm Siting
(Doctoral thesis, 2022-09-09)De norske havvindressursene er fantastiske. Likevel er det ingen operative vindparker i de norske havvområdene. Tatt i betraktning både utslippsmål og forventet økning i elektrisitetsforbruk har regjerningen nå begynt å ... -
Atlantic thermohaline changes and its implications on the carbon cycle during the Last Interglacial
(Doctoral thesis, 2020-06-16)Large and abrupt changes in the Earth’s climate have been recorded in marine records and Greenland ice cores and mostly characterize the last glacial period. These sudden transitions of climate, occurring within a few ... -
Atlantic Water in the Arctic Ocean - Mechanisms and Impacts
(Doctoral thesis, 2021-08-19)The Arctic Ocean plays a fundamental role in regulating Earth’s climate, and a changing Arctic will affect climate, weather, and life everywhere on the planet. Understanding the fundamental dynamics and mechanisms driving ... -
Atlantic water inflow into the Arctic Ocean: studies of pathways, transport and mixing processes using observations from ships and autonomous underwater vehicles
(Doctoral thesis, 2024-01-23)Nordishavet spiller en viktig rolle i det globale klimasystemet. Produksjon av kaldt vann med høy tetthet, samt frysing av sjøis i Arktis, bidrar til å drive den Atlantiske meridionale omveltningssirkulasjonen og kan påvirke ... -
Atmospheric icing and meteorological variables: Full scale experiment and testing of models
(Doctoral thesis, 2005-04-15) -
Carbon and oxygen fluxes in the Barents and Norwegian Seas : production, air-sea exchange and budget calculations
(Doctoral thesis, 2007-08-17)This thesis focus on the carbon and oxygen fluxes in the Barents and Norwegian Seas and presents four studies where the main topics are variability of biological production, air-sea exchange and budget calculations. The ... -
Carbon to nutrient ratios in marine systems: understanding natural variability Studies of seasonal, inter-annual and regional variability
(Doctoral thesis, 2012-06-29)Ecological stoichiometry deals with the coupling of the carbon (C), nitrogen (N) and phosphorus (P) cycles at the base of the aquatic food webs. Variation in C:N:P stoichiometry is driven by a multitude of factors, and the ... -
Certain aspects of high latitude climate variability
(Doctoral thesis, 2014-06-13) -
Challenges in seismic hazard assessment: Analyses of ground motion modelling and seismotectonic sources
(Doctoral thesis, 2006-06-21)Seismic hazard assessment has an important societal impact in describing levels of ground motions to be expected in a given region in the future. Challenges in seismic hazard assessment are closely associated with the fact ... -
Circulation along the northern slope of the Greenland-Scotland Ridge
(Doctoral thesis, 2020-12-11)The Greenland-Scotland Ridge separates the subpolar North Atlantic from the Nordic Seas and constrains the flow of the upper and lower branches of the northern extremity of the Atlantic Meridional Overturning Circulation ... -
Circulation and exchange of water masses on the Faroe Shelf and the impact on the Shelf ecosystem
(Doctoral thesis, 2009-02-11)The findings in this work can be listed as follows: FSW: Based on CTD data, the FSW is found to be relatively vertically homogeneous through-out the year inside the 100 m depth contour. Temperature measurements at coastal ... -
Circulation and transformation of Atlantic and Arctic water masses in climate models
(Doctoral thesis, 2011-12-09)Ocean heat transport and associated heat loss to the atmosphere contributes significantly to the anomalously mild climate of northwestern Europe and its variability. In this thesis, the circulation and transformation of ... -
Circulation features in the northern North Atlantic Ocean inferred from simulated radioactive tracers
(Doctoral thesis, 2008-03-12)