Blar i Geophysical Institute på tittel

Viser treff 234-253 av 1294

    • Design av Grid-tilkoblet Omformer for Energilagringssystemer 

      Pedersen, Morten Matias (Master thesis, 2023-06-01)
      I Norge har vi et veldig høyt elektrisitetsforbruk sett i forhold til kraft per innbygger, samt at en av våre konkurransefortrinn med tanke på industri er nettopp tilgangen til billig og grønn strøm. En utfordring med dette ...

    • Design of a Generator Excitation System 

      Fænn, Jonas Fotland (Master thesis, 2021-06-01)

    • Design of a Rectifier for Electric Vehicle Chargers 

      Bajwa, Omes Jawaid (Master thesis, 2021-06-29)

    • Design of Grid-Tied Converter Using AFE 

      Fosse, William Henriksen (Master thesis, 2023-03-18)
      The predicted increase in electricity demand from electrification of the transportation sector has led to research of bidirectional \gls{EV} chargers becoming an ever more popular research topic. With bidirectional chargers, ...

    • Design of rectifier system for electric ferries 

      Sagedal, Andreas (Master thesis, 2018-06-16)
      This study investigates the requirements and technologies to provide power from shore to ship when the electric ferry is at quay. Different rectifier systems will be evaluated in terms of requirements given by the utility ...

    • Designbasis for metanpyrolysereaktor som forskningsreaktor ved HVL 

      Gjørvad, Albert Johan (Master thesis, 2023-06-15)

    • Detection and Timing of Gamma-Ray Pulsations from the 707 Hz Pulsar J0952−0607 

      Nieder, Lars; Clark, Colin J.; Bassa, Cees G.; Wu, Jason; Singh, Avneet; Donner, Julian Y.; Allen, Bruce; Breton, René P.; Dhillon, Vikrram S.; Eggenstein, Heinz Bernd; Hessels, Jason W.T.; Kennedy, Mark R.; Kerr, Matthew; Littlefair, Stuart P.; Marsh, Thomas R.; Sánchez, D. Mata; Papa, Maria Alessandra; Ray, Paul S.; Steltner, Benjamin; Verbiest, Joris P.W. (Journal article; Peer reviewed, 2019)
      The Low-Frequency Array radio telescope discovered the 707 Hz binary millisecond pulsar (MSP) J0952−0607 in a targeted radio pulsation search of an unidentified Fermi gamma-ray source. This source shows a weak energy flux ...

    • The Determination of the Snow Optical Grain Diameter and Snowmelt Area on the Greenland Ice Sheet Using Spaceborne Optical Observations 

      Vandecrux, Baptiste; Box, Jason E.; Wehrlé, Adrien; Kokhanovsky, Alexander A.; Picard, Ghislain; Niwano, Masashi; Hörhold, Maria; Faber, Anne-Katrine; Steen-Larsen, Hans Christian (Journal article; Peer reviewed, 2022)
      The optical diameter of the surface snow grains impacts the amount of energy absorbed by the surface and therefore the onset and magnitude of surface melt. Snow grains respond to surface heating through grain metamorphism ...

    • Developing the Tools to Quantify Past Climate Variability from Ice Core Records 

      Dietrich, Laura Jasmin (Doctoral thesis, 2023-06-21)
      Vannstabile isotoper registrert i iskjerner, brukes som proxydata for å rekonstruere klimaet i fortiden. Tradisjonell tolkning av registrerte vannisotoper er at snø fanger opp den integrerende isotopiske signaturen av ...

    • Development and Comparison of Compressor Models for Heat Pump Applications in TRNSYS 

      Vindenes, Elisabeth (Master thesis, 2018-06-22)
      Heat pump systems may serve as a replacement for many heating systems using fossil fuels for heating purposes. Heat pumps are widely used in Norway where electric energy is abundant and inexpensive. Research and development ...

    • The development and evaluation of an idealized ocean model for the Bergen Dynamic Model 

      Thorsteinsson, Trond (Master thesis, 2013-11-20)
      Three idealized ocean model versions are developed for the Bergen Dynamic Model (Bedymo). All three model versions fall into the category of slab ocean models. One version is more or less a standard slab ocean model, while ...

    • Development of a new urban climate model based on the model PALM – Project overview, planned work, and first achievements 

      Maronga, Bjørn; Gross, Günter; Raasch, Siegfried; Banzhaf, Sabine; Forkel, Renate; Heldens, Wieke; Kanani-Sühring, Farah; Matzarakis, Andreas; Mauder, Matthias; Pavlik, Dirk; Pfafferott, Jens; Schubert, Sebastian; Seckmeyer, Gunther; Sieker, Heiko; Winderlich, Kristina (Journal article; Peer reviewed, 2019)
      In this article we outline the model development planned within the joint project Model-based city planning and application in climate change (MOSAIK). The MOSAIK project is funded by the German Federal Ministry of Education ...

    • Development of advanced tools in computational nonlinear aeroelasticity 

      Kleppenes, Einar Hope (Master thesis, 2023-01-04)
      In this work, the development of a two dimensional computational model for predicting the aeroelastic response is presented. In the aeroelastic model presented here, the aeroedynamic and the structural models are considered ...

    • Development of an atmospheric chemistry model coupled to the PALM model system 6.0: implementation and first applications 

      Khan, Basit; Banzhaf, Sabine; Chan, Edward C.; Forkel, Renate; Kanani-Sühring, Farah; Ketelsen, Klaus; Kurppa, Mona; Maronga, Bjørn; Mauder, Matthias; Raasch, Siegfried; Russo, Emmanuele; Schaap, Martijn; Sühring, Matthias (Journal article; Peer reviewed, 2021)
      In this article we describe the implementation of an online-coupled gas-phase chemistry model in the turbulence-resolving PALM model system 6.0 (formerly an abbreviation for Parallelized Large-eddy Simulation Model and now ...

    • Development of an automatic thresholding method for wake meandering studies and its application to the data set from scanning wind lidar 

      Krutova, Maria; Paskyabi, Mostafa Bakhoday; Reuder, Joachim; Nielsen, Finn Gunnar (Journal article; Peer reviewed, 2022)
      Wake meandering studies require knowledge of the instantaneous wake evolution. Scanning lidar data are used to identify the wind flow behind offshore wind turbines but do not immediately reveal the wake edges and centerline. ...

    • Development of community, capabilities and understanding through unmanned aircraft-based atmospheric research: The LAPSE-RATE campaign 

      De Boer, Gijs; Diehl, Constantin; Jacob, Jamey; Houston, Adam; Smith, Suzanne; Chilson, Phillip B.; Schmale, David; Intrieri, Janet; Pinto, James; Elston, Jack; Brus, David; Kemppinen, Osku; Clark, Alex; Lawrence, Dale; Bailey, Sean; Sama, Michael; Frazier, Amy; Crick, Christopher; Natalie, Victoria; Pillar-Little, Elizabeth; Klein, Petra; Waugh, Sean; Lundquist, Julie K.; Barbieri, Lindsay; Kral, Stephan; Jensen, Anders; Dixon, Cory; Borenstein, Steven; Hesselius, Daniel; Human, Kathleen; Hall, Philip; Argrow, Brian; Thronberry, Troy; Wright, Randy; Kelly, Jason (Peer reviewed; Journal article, 2020)
      Because unmanned aircraft systems (UAS) offer new perspectives on the atmosphere, their use in atmospheric science is expanding rapidly. In support of this growth, the International Society for Atmospheric Research Using ...

    • Diabatic Heating as a Pathway for Cyclone Clustering Encompassing the Extreme Storm Dagmar 

      Weijenborg, Christian; Spengler, Thomas (Journal article, 2020)
      Contrary to the general notion that extratropical cyclones reduce baroclinicity, the baroclinicity is found to be enhanced in the wake of the extreme winter storm Dagmar. Thus, individual storms can increase baroclinicity, ...

    • Diabatic heating governs the seasonality of the Atlantic Niño 

      Nnamchi, Hyacinth C; Latif, Mojib; Keenlyside, Noel; Kjellsson, Joakim; Richter, Ingo (Journal article; Peer reviewed, 2021)
      The Atlantic Niño is the leading mode of interannual sea-surface temperature (SST) variability in the equatorial Atlantic and assumed to be largely governed by coupled ocean-atmosphere dynamics described by the Bjerknes-feedback ...

    • Diagnosing and Understanding the AMOC Biases in NorESM 

      Ivanova, Detelina; Bentsen, Mats; Ilicak, Mehmet; Gao, Chuncheng; Drange, Helge (Conference poster, 2014)
      We investigate the Atlantic Meridional Overturning Circulation (AMOC) in the Norwegian Earth System Model (NorESM) featuring isopycnal ocean component (MICOM). The Coupled Model Intercomparison Phase 5 (CMIP5) NorESM ...

    • Diagnosing ocean tracer transport from Sellafield and Dounreay by equivalent diffusion and age 

      Orre, Steinar; Gao, Yongqi; Drange, Helge; Deleersnijder, Eric (Peer reviewed; Journal article, 2008-09-27)
      A simple approach for estimating the equivalent diffusion for diagnosing tracer transport is proposed. Two different expressions are derived; one is based directly on an analytical solution of the two-dimensional ...