Blar i Geophysical Institute på tittel
Viser treff 20-39 av 1228
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Akvakultur og små vindturbinar: Eit moglegheitsstudie av i kva grad små vindturbinar kan dekkje energiforbruket ved norske oppdrettsanlegg
(Master thesis, 2018-06-21)The world’s population is growing rapidly, and it will become necessary, to a greater extent, to use the ocean for harvesting food. Norway is the largest exporter of salmon in the world. Prognosis says that aquaculture in ... -
Along‐stream, seasonal, and interannual variability of the North Icelandic Irminger Current and East Icelandic Current around Iceland
(Journal article; Peer reviewed, 2020)Data from repeat hydrographic surveys over the 25-year period 1993 to 2017, together with satellite altimetry data, are used to quantify the temporal and spatial variability of the North Icelandic Irminger Current (NIIC), ... -
Amplification of synoptic to annual variability of West African summer monsoon rainfall under global warming
(Journal article; Peer reviewed, 2020)Increased knowledge of future changes in rainfall variability is needed to reduce vulnerability to potential impacts of global warming, especially in highly vulnerable regions like West Africa. While changes in mean and ... -
An Investigation of the Optical Properties of Metal Nanoparticles for the Application in a Diffuse Light Solar Cell
(Master thesis, 2020-06-25)The need of renewable energy is increasing as the global energy demand increases concurrently with greenhouse gas emissions from energy use. According to the International Energy Agency, the energy demand will rise by 1.3 ... -
Analyse av energi, eksergi og eksergoøkonomi for en stempelmotorbasert CHP-enhet kombinert med en organisk Rankine-syklus (ORC)
(Master thesis, 2015-08-17)Waste heat recovery is a concept that is relevant for reducing consumption and emissions from thermal machinery. Waste heat recovery can performed in two ways: by Combined Heat and Power production (CHP) or Waste Heat ... -
Analyses of the potential role of hydrogen for Norway in the transition to a zero-emission society
(Master thesis, 2017-06-23)The objective of this thesis is to analyze the potential role of hydrogen for Norway in the transition to a zero-emission society. The main sector of focus is the transport sector. Here, socioeconomic analyses are carried ... -
Analysis of 3 years of precipitation measurements from the Micro Rain Radar located at the Geophysical Institute
(Master thesis, 2013-11-20)An analysis of three years of vertically pointing Micro Rain Radar (MRR) data from the measurement platform at the Geophysical Institute has been performed. The measurement period started at 13.04.2010 and ended at 12.04.2013. ... -
Analysis of a low-level coastal jet off the western coast of Norway
(Peer reviewed; Journal article, 2014)Offshore wind installations depend strongly on an improved knowledge of the atmospheric and ocean conditions affecting the marine atmospheric boundary layer (MABL). In particular the better understanding of atmospheric ... -
Analysis of CryoSat’s radar altimeter waveforms over different Arctic sea ice regimes
(Working paper, 2014-06-11)Satellite altimetry has been used to derive information about sea ice thickness in the Arctic already for several decades. As part of the algorithms applied the shape of the radar signal is used to identify leads, the open ... -
Analysis of offshore wind spectra and coherence under neutral stability condition using the two LES models PALM and SOWFA
(Journal article; Peer reviewed, 2021)The Parallelized Large-Eddy Model (PALM) and the Simulator for Wind Farm Applications (SOWFA) have been used to simulate the marine boundary layer flows under neutral stability condition. The present work aims to investigate ... -
Analysis of the vertical temperature structure in the Bergen valley, Norway, and its connection to pollution episodes
(Peer reviewed; Journal article, 2014-09)The vertical temperature profile in the lowest 1000m of the atmosphere determines a number of important physical processes and meteorological phenomena such as high concentrations of anthropogenic air pollutants in urban ... -
Analysis of tidal currents in the North Sea from shipboard acoustic Doppler current profiler data
(Peer reviewed; Journal article, 2018-01-12)North Sea tidal currents are determined by applying harmonic analysis to ship-borne acoustic Doppler current profiler data recorded from 1999 to 2016, covering large areas of the northern North Sea. Direct current measurement ... -
Analysis of turbulence models fitted to site, and their impact on the response of a bottom-fixed wind turbine
(Journal article; Peer reviewed, 2021)This study compares a wind field recommended by the wind turbine design standards to more realistic wind fields based on measurements. The widely used Mann spectral tensor model with inputs recommended by the standard, is ... -
Annual and Seasonal Mean Net Evaporation Rates of the Red Sea Water during Jan 1958 - Dec 2007
(Master thesis, 2012-10-01)Data set including sea level, temperature, salinity, and current from Simple Ocean Data Assimilation (SODA) is used in this study to estimate the mean net annually and seasonally evaporation rates. Then wind data is used ... -
Annual carbon fluxes in the upper Greenland Sea based on measurements and a box-model approach
(Peer reviewed; Journal article, 2000-07)Measurements of nitrate and the carbonate system parameters performed mainly from 1993 to 1997 have been used to estimate the evolution of the concentration fields over the year in the surface and underlying waters of the ... -
Annual cycles of sea level and sea surface temperature in the western Mediterranean Sea
(Peer reviewed; Journal article, 2003-03-01)In the western Mediterranean Sea, sea level variations are the result of seasonal steric effect, atmospheric forcing and mesoscale circulation activity, particularly in the Alboran and Algerian basins, as well as water ... -
Anthropogenic increase of oceanic pCO2 in the Barents Sea surface water
(Peer reviewed; Journal article, 2003-12-26)We evaluate the change of surface water CO2 partial pressure ( pCO2 sw) in the Barents Sea (BS) between 1967 and 2000–2001. We use temperature (T) data collected during a survey in the BS in 1967 and a relationship between ... -
Application of the unmanned Offshore Sensing SailBuoy for validation of ocean model simulations and remote sensing data in the North Atlantic
(Master thesis, 2015-12-01)The Offshore Sensing SailBuoy, is a remotely controlled, wind driven unmanned ocean vehicle. It sampled near surface properties during a mission in the North Atlantic in June - August 2014. Three parameters were recorded, ... -
Aragonite saturation states and pH in western Norwegian fjords: Seasonal cycles and controlling factors, 2005-2009
(Peer reviewed; Journal article, 2016-07-26)The uptake of anthropogenic carbon dioxide (CO2) by the ocean leads to a process known as ocean acidification (OA), which lowers the aragonite saturation state (ΩAr) and pH, and this is poorly documented in coastal ... -
Arctic amplification under global warming of 1.5 and 2 °C in NorESM1-Happi
(Peer reviewed; Journal article, 2019)Differences between a 1.5 and 2.0 ∘C warmer climate than 1850 pre-industrial conditions are investigated using a suite of uncoupled (Atmospheric Model Intercomparison Project; AMIP), fully coupled, and slab-ocean experiments ...