Blar i Faculty of Mathematics and Natural Sciences på tittel

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    • Advection Upscaling for Heat Transport in Fractured Geothermal Reservoir 

      Ninic, Marija (Master thesis, 2018-06-20)
      The main objective in this thesis is to give numerical solution for advection term of heat transport equation in fractured geothermal reservoir. To get better insight in the fracture influence on the processes we will ...

    • AE, DST, and Their SuperMAG Counterparts: The Effect of Improved Spatial Resolution in Geomagnetic Indices 

      Bergin, A.; Chapman, S.C.; Gjerløv, Jesper (Journal article; Peer reviewed, 2020)
      For decades, geomagnetic indices have been used extensively to parameterize space weather events, as input to various models and as space weather specifications. The auroral electrojet (AE) index and disturbance storm time ...

    • AEDGE: Atomic Experiment for Dark Matter and Gravity Exploration in Space 

      El-Neaj, Yousef Abou; Alpigiani, Cristiano; Amairi-Pyka, Sana; Araújo, Henrique; Balaž, Antun; Bassi, Angelo; Bathe-Peters, Lars; Battelier, Baptiste; Belić, Aleksandar; Bentine, Elliot; Bernabeu, José; Bertoldi, Andrea; Bingham, Robert; Blas, Diego; Bolpasi, Vasiliki; Bongs, Kai; Bose, Sougato; Bouyer, Philippe; Bowcock, Themis; Bowden, William; Buchmueller, Oliver; Burrage, Clare; Calmet, Xavier; Canuel, Benjamin; Caramete, Laurentiu-Ioan; Carroll, Andrew; Cella, Giancarlo; Charmandaris, Vassilis; Chattopadhyay, Swapan; Chen, Xuzong; Chiofalo, Maria Luisa; Coleman, Jonathon; Cotter, Joseph; Cui, Yanou; Derevianko, Andrei; De Roeck, Albert; Djordjevic, Goran S.; Dornan, Peter; Doser, Michael; Drougkakis, Ioannis; Dunningham, Jacob; Dutan, Ioana; Easo, Sajan; Elertas, Gedminas; Ellis, John; El Sawy, Mai; Fassi, Farida; Felea, Daniel; Feng, Chen-Hao; Flack, Robert; Foot, Chris; Fuentes, Ivette; Gaaloul, Naceur; Gauguet, Alexandre; Geiger, Remi; Gibson, Valerie; Giudice, Gian; Goldwin, Jon; Grachov, Oleg; Graham, Peter W.; Grasso, Dario; van der Grinten, Maurits; Gündogan, Mustafa; Haehnelt, Martin G.; Harte, Tiffany; Hees, Aurélien; Hobson, Richard; Hogan, Jason; Holst, Bodil; Holynski, Michael; Kasevich, Mark; Kavanagh, Bradley J.; von Klitzing, Wolf; Kovachy, Tim; Krikler, Benjamin; Krutzik, Markus; Lewicki, Marek; Lien, Yu-Hung; Liu, Miaoyuan; Luciano, Giuseppe Gaetano; Magnon, Alain; Mahmoud, Mohammed Attia; Malik, Sarah; McCabe, Christopher; Mitchell, Jeremiah; Pahl, Julia; Pal, Debapriya; Pandey, Saurabh; Papazoglou, Dimitris; Paternostro, Mauro; Penning, Bjoern; Peters, Achim; Prevedelli, Marco; Puthiya-Veettil, Vishnupriya; Quenby, John; Rasel, Ernst; Ravenhall, Sean; Ringwood, Jack; Roura, Albert; Sabulsky, Dylan; Sameed, Muhammed; Sauer, Ben; Schäffer, Stefan Alaric; Schiller, Stephan; Schkolnik, Vladimir; Schlippert, Dennis; Schubert, Christian; Sfar, Haifa Rejeb; Shayeghi, Armin; Shipsey, Ian; Signorini, Carla; Singh, Yeshpal; Soares-Santos, Marcelle; Sorrentino, Fiodor; Sumner, Timothy; Tassis, Konstantinos; Tentindo, Silvia; Tino, Guglielmo Maria; Tinsley, Jonathan N.; Unwin, James; Valenzuela, Tristan; Vasilakis, Georgios; Vaskonen, Ville; Vogt, Christian; Webber-Date, Alex; Wenzlawski, André; Windpassinger, Patrick; Woltmann, Marian; Yazgan, Efe; Zhan, Ming-Sheng; Zou, Xinhao; Zupan, Jure (Journal article; Peer reviewed, 2020)
      We propose in this White Paper a concept for a space experiment using cold atoms to search for ultra-light dark matter, and to detect gravitational waves in the frequency range between the most sensitive ranges of LISA and ...

    • Aerobic fitness and metabolic health in children: A clinical validation of directly measured maximal oxygen consumption versus performance measures as markers of health 

      Aadland, Eivind; Kvalheim, Olav Martin; Rajalahti, Tarja; Skrede, Turid; Resaland, Geir Kåre (Peer reviewed; Journal article, 2017-09)
      High aerobic fitness is consistently associated with a favorable metabolic health profile in children. However, measurement of oxygen uptake, regarded as the gold standard for evaluating aerobic fitness, is often not ...

    • Aerodynamic study of a suspension bridge deck by CFD simulations, wind tunnel tests and full-scale observations 

      Kusano, Ibuki; Cheynet, Etienne; Jakobsen, Jasna Bogunovic; Snæbjörnsson, Jonas Thor (Journal article; Peer reviewed, 2021)
      Assessing the aerodynamic characteristics of long-span bridges is fundamental for their design. Depending on the terrain complexity and local wind conditions, episodes of large angles of attack (AoA) of 15° may be observed. ...

    • Aftershock study of the 2019 Ambon earthquake using moment tensor inversion: identification of fault reactivation in northern Banda, Indonesia 

      Baskara, Aria W.; Sahara, David P.; Nugraha, Andri D.; Rusdin, Andi Azhar; Zulfakriza, Z.; Widiyantoro, Sri; Triyoso, Wahyu; Priyono, Awali; Puspito, Nanang T.; Shiddiqi, Hasbi Ash; Kusumawati, Dian; Rudyawan, Alfend; Elly, Erfin (Journal article; Peer reviewed, 2023)
      On September 26, 2019, an Mw 6.5 earthquake occurred 23 km northeast of Ambon City, Indonesia, followed by numerous aftershock series related to a complex fault network reactivation in the Ambon and Seram region. Using ...

    • Age and growth determination and stock identification using statolith microstructure of Indian squid, Loligo duvauceli 

      Srichanngam, Sansanee (Master thesis, 2010-05-29)
      Age and growth and stock identification of Indian squid, Loligo duvauceli were examined by statolith microstructure and morphological measurements. The Indian squid were sampled from the Gulf of Thailand and the Andaman ...

    • Age determination of Atlantic halibut (Hippoglossus hippoglossus L.) - Size at age and regional growth differences along the coast of Norway 

      Karlson, Stine (Master thesis, 2011-05-25)
      The traditional method for estimating age of Atlantic halibut (Hippoglossus hippoglossus) is through surface readings. Previous studies have not been compared to find the best practice for surface reading techniques. Based ...

    • Aggregations of foraging black guillemots (Cepphus grylle) at a sea-ice edge in front of a tidewater glacier 

      Varpe, Øystein; Gabrielsen, Geir W. (Journal article; Peer reviewed, 2022)
      Seabirds in cold biomes sometimes aggregate near glacier fronts and at sea-ice edges to forage. In this note, we report on large aggregations of black guillemots (Cepphus grylle) at the edge of sea ice in front of the ...

    • AGILE Observations of GRB 220101A: A "new Year's Burst" with an Exceptionally Huge Energy Release 

      Ursi, A.; Romani, M.; Piano, G.; Verrecchia, F.; Longo, F.; Pittori, C.; Tavani, M.; Bulgarelli, A.; Cardillo, M.; Casentini, C.; Cattaneo, P.W.; Costa, E.; Feroci, M.; Fioretti, V.; Foffano, L.; Lucarelli, F.; Marisaldi, Martino; Morselli, A.; Pacciani, L.; Parmiggiani, N.; Tempesta, P.; Trois, A.; Vercellone, S. (Journal article; Peer reviewed, 2022)
      We report the AGILE observations of GRB 220101A, which took place at the beginning of 2022 January 1 and was recognized as one of the most energetic gamma-ray bursts (GRBs) ever detected since their discovery. The AGILE ...

    • Agonistic and potentiating effects of perfluoroalkyl substances (PFAS) on the Atlantic cod (Gadus morhua) peroxisome proliferator-activated receptors (Ppars) 

      Söderström, Sofie Karin; Lille-Langøy, Roger; Yadetie, Fekadu; Rauch, Mateusz; Milinski, Ana; Dejaegere, Annick; Stote, Roland H.; Goksøyr, Anders; Karlsen, Odd André (Journal article; Peer reviewed, 2022)
      Toxicity mediated by per- and polyfluoroalkyl substances (PFAS), and especially perfluoroalkyl acids (PFAAs), has been linked to activation of peroxisome proliferator-activated receptors (Ppar) in many vertebrates. Here, ...

    • Air-Sea Interaction in Biophysical Modeling: With focus on Northeast Arctic Cod 

      Strand, Kjersti Opstad (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 ...

    • Air-Sea Interactions during Cold Air Outbreaks in a coupled Mixed Layer Model 

      Konstali, Kjersti (Master thesis, 2019-06-19)
      Cold air outbreaks play a crucial role in the air-sea heat exchange in high latitudes. To explore the sensitivity to ocean coupling, the role of latent heating and the sensitivity to sea ice distributions in cold air ...

    • Airborne Field Measurements and Model Simulations of Boundary Layer Properties over the Iceland Sea 

      Golid, Heidi Midtgarden (Master thesis, 2019-06-28)
      The spatial and temporal distributions of a cold air outbreak (CAO) event over the Iceland- and southern Greenland Seas have been investigated during the IcelandGreenland Seas project (IGP) in February and March 2018. This ...

    • Airborne observations of the Eyjafjalla volcano ash cloud over Europe during air space closure in April and May 2010 

      Schumann, U.; Weinzierl, B; Reitebuch, O; Schlager, H.; Minikin, A; Forster, C; Baumann, R; Sailer, T; Graf, K; Mannstein, H.; Voigt, C; Rahm, S; Simmet, R; Scheibe, M; Lichtenstern, M; Stock, P; Ruba, H; Schauble, D; Tafferner, A; Rautenhaus, M; Gerz, T; Ziereis, H; Krautstrunk, M; Mallaun, C; Gayet, JF; Lieke, K; Kandler, K; Ebert, M; Weinbruch, S; Stohl, Andreas; Gasteiger, J; Gross, S; Freudenthaler, V; Wiegner, M; Ansmann, A; Tesche, M; Ólafsson, Haraldur; Sturm, K (Peer reviewed; Journal article, 2011-03-11)
      Airborne lidar and in-situ measurements of aerosols and trace gases were performed in volcanic ash plumes over Europe between Southern Germany and Iceland with the Falcon aircraft during the eruption period of the Eyjafjalla ...

    • Aircraft and spacecraft observations of high-energy radiation associated with lightning leaders 

      Skeie, Chris Alexander Kallevik (Doctoral thesis, 2022-10-03)
      Denne avhandlingen undersøker røntgen og gammastråling assosiert med lyn ledere, observert av instrumenter på fly og fra verdensrommet. Avhandlingen består av tre forskningsartikler, publisert i Journal of Geophysical ...

    • Aircraft interaction with electric field of thundercloud and observations of hard radiation 

      Skeie, Chris Alexander Kallevik (Master thesis, 2018-06-16)
      The purpose of this thesis is to study the relationship between the different phases of lightning flashes and the production of high-energy emissions, as well as highenergy emissions observed from thunderclouds. The data ...

    • Aircraft-based observations and high-resolution simulations of an Icelandic dust storm 

      Blechschmidt, Anne-Marlene; Kristjansson, Jon Egill; Ólafsson, Haraldur; Burkhart, John; Hodnebrog, Øivind; Rosenberg, P.D. (Peer reviewed; Journal article, 2012-11-16)
      The first aircraft-based observations of an Icelandic dust storm are presented. The measurements were carried out over the ocean near Iceland's south coast in February 2007. This dust event occurred in conjunction with an ...

    • Aktivering av aryl hydrokarbonreseptor (Ahr)-signalveien og lokalisering av ahr genuttrykking i tidlige livsstadier til Atlanterhavstorsk (Gadus morhua) etter eksponering for råolje 

      Myklatun, Lars Eirik (Master thesis, 2019-09-28)
      Egg og larver av nordøstarktisk (NØA) torsk kan bli truet av eksponering for oljesøl dersom planene om å starte oljeutvinning i dens gyteområder utenfor kysten til Lofoten, Vesterålen og Senja (LoVeSe) realiseres. Råolje ...

    • Aktsomhetskart for jordfallshull i Nordland: en forstudie 

      Kjønsøy, Ragnhild Austbø (Master thesis, 2019-06-13)
      Store deler av Nordland utgjør områder hvor karstbergarter er tildekket av kvartære løsmasser. Ved slike forhold kan suffosjonsdoliner og katastrofale jordfallshull utvikles. Jordfallshull er en type doline (lukket ...