Vitenskapelig foredrag
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Tyssøy, Hilde Nesse; Ødegaard, Linn-Kristine Glesnes; Stadsnes, Johan
et al. (2019). Electron pitch angle anisotropy in corotating interaction region-driven storms – implications for radiation belt loss and electron precipitation. (ekstern lenke)
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Tyssøy, Hilde Nesse; Ødegaard, Linn-Kristine Glesnes; Stadsnes, Johan
et al. (2018). Radiation Belt Loss due to Energetic Electron Precipitation in Geomagnetic Storm associated with Corotating Interaction Regions. (ekstern lenke)
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Stadsnes, Johan; Ødegaard, Linn-Kristine Glesnes; Tyssøy, Hilde Nesse
et al. (2016). Trapped and Precipitating Energetic Electrons during Geomagnetic Storms Driven by Corotating Interaction Regions (CIRs). (ekstern lenke)
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Ødegaard, Linn-Kristine Glesnes; Tyssøy, Hilde Nesse; Stadsnes, Johan
et al. (2015). Relativistic electron precipitation during geomagnetic storm time in the years 2006-2010. (ekstern lenke)
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Søraas, Finn
(2014). Ring current behavior revealed by low altitude observations of auroral and equatorial particle precipitation. (ekstern lenke)
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Stadsnes, Johan; Tyssøy, Hilde Nesse; Søraas, Finn
et al. (2013). Variation in cutoff latitudes during solar proton events and implication for the distribution of particle energy deposition in the upper atmosphere. (ekstern lenke)
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Tyssøy, Hilde Nesse; Stadsnes, Johan; Søraas, Finn
(2013). Variations in cutoff latitude and implication for the distribution of particle deposition during solar proton events. (ekstern lenke)
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Tyssøy, Hilde Nesse; Stadsnes, Johan; Søraas, Finn
(2013). Strong day-night asymmetry in cutoff latitude and implication for the distribution of particle energy deposition during solar proton events. (ekstern lenke)
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Engebretson, Mark; Posch, J. L.; Lessard, Marc R.
et al. (2012). Multi-instrument Observations from Svalbard of a Traveling Convection Vortex, Electromagnetic Ion Cyclotron Wave Burst, and Proton Precipitation Associated with a Bow Shock Instability. (ekstern lenke)
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Tyssøy, Hilde Nesse; Stadsnes, Johan; Søraas, Finn
et al. (2012). Energetic particle precipitation and ionization effects in the mesosphere during the solar energetic particle events 23 - 30 January 2012. (ekstern lenke)
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Daae, Marianne; Espy, Patrick Joseph; Søraas, Finn
et al. (2011). The effect of radiation belt particles on middle atmospheric night time ozone during enhanced geomagnetic activity. (ekstern lenke)
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Tyssøy, Hilde Nesse; Stadsnes, Johan; Søraas, Finn
(2011). A cooling effect in the upper mesosphere associated with the 2003 Halloween storms. (ekstern lenke)
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Håland, Stein Egil; Søraas, Finn; Daly, P.
et al. (2011). Determination of polar cap size and shape using energetic particles. (ekstern lenke)
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Søraas, Finn; Sørbø, Marita; Laundal, Karl Magnus
(2011). Observations of energetic protons and auroral light during geomagnetic storms. (ekstern lenke)
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Søraas, Finn; Sørbø, Marita
(2011). Observations of energetic protons and neutral atoms (ENA) at low altitudes during geomagnetic storms. (ekstern lenke)
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Søraas, Finn; Laundal, Karl Magnus
(2011). Particle and optical observations of subauroral proton precipitation. (ekstern lenke)
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Daae, Marianne; Espy, Patrick Joseph; Lisa, M. S. N.
et al. (2011). The effect of radiation belt particles on middle atmospheric nighttime ozone during enhanced geomagnetic activity. (ekstern lenke)
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Tyssøy, Hilde Nesse; Stadsnes, Johan; Mertens, C.J.
et al. (2011). A cooling effect in the upper mesosphere associated with the 2003 Halloween storms. (ekstern lenke)
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Moen, Jøran Idar; Bekkeng, Jan Kenneth; Bekkeng, T. A.
et al. (2009). On the investigation of cusp irregularities by sounding rockets. (ekstern lenke)
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Moen, Jøran Idar; Bekkeng, Jan Kenneth; Bekkeng, T. A.
et al. (2009). On the Investigation of cusp irregularities by sounding rockets. (ekstern lenke)
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Stadsnes, Johan; Tyssøy, Hilde Nesse; Søraas, Finn
et al. (2009). Upper Mesospheric and Lower Thermospheric Temperature Effects Caused by Energetic Particle Precipitation During the 2003 Halloween Storm. (ekstern lenke)
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Søraas, Finn; Sandanger, Marit Irene J.; Aarsnes, Kjell
(2007). Anisotropic proton precipitation and loss of relativistic electrons by the NOAA satellites related to EMIC waves. (ekstern lenke)
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Søraas, Finn
(2007). The ring current as revealed by the STEB (Storm Time Equatorial Belt). (ekstern lenke)
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Søraas, Finn
(2007). On the relationship between precipitating protons and loss of relativistic electrons. The ring current behaviour as reveald by by the STEB. (ekstern lenke)
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Sørbø, Marita; Søraas, Finn
(2007). The ring current behaviour during high speed stream events asrevealed by precipitating particles and the STEB. (ekstern lenke)
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Sørbø, Marita; Søraas, Finn
(2007). Storm Time Equatorial Belt er dominert av oksygenioner frå ringstraumen. (ekstern lenke)
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Guarnieri, Fernando; Tsurutani, Bruce; Gonzalez, Walter
et al. (2006). ICME and CIR storms with particular emphases on HILDCAA events. (ekstern lenke)
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Søraas, Finn; Sandanger, Marit Irene J.; Sørbø, Marita
et al. (2006). Injection and loss processes of 30 to 300 keV particles and relativistic electrons during CIR and non-CIR storms. (ekstern lenke)
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Sørbø, Marita; Brandt, Pontus; Søraas, Finn
(2006). Energetic Neutral Atom (ENA) measurements from IMAGE compared with low altitude measurements of Storm Time Equatorial Belt. (ekstern lenke)
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Søraas, Finn; Sandanger, Marit Irene J.; Sørbø, Marita
et al. (2006). Injection and Loss Processes of 30 to 300 keV Particles and Relativistic Electrons During CIR and Non-CIR Storms. (ekstern lenke)
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Sørbø, Marita; Søraas, Finn; Aarsnes, Kjell
(2005). Breiddefordelinga til Storm Time Equatorial Belt, observasjonar og teori. (ekstern lenke)
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Pedersen, A.; Balogh, A.; Borg, A.L.
et al. (2004). Electric and magnetic field and particle observations on Cluster combined with ground-based observations during substorms. (ekstern lenke)
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Pedersen, Arne; Balogh, A.; Borg, Anette Lauen
et al. (2004). Electric and magnetic field and particle observations on Cluster combined with ground-based observations during substorms. (ekstern lenke)
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Søraas, F.; Oksavik, Kjellmar; Sandanger, M. I.
et al. (2004). Relativistic electron losses in regions of anisotropic proton precipitation. (ekstern lenke)
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Søraas, F.; Oksavik, Kjellmar; Aarsnes, K.
et al. (2003). Ring current dynamics and local time behaviour estimated from low-altitude proton observations. (ekstern lenke)
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Søraas, F.; Oksavik, Kjellmar
(2003). Ring current dynamics and local time behaviour estimated from low-altitude proton observations. (ekstern lenke)
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Søraas, F.; Oksavik, Kjellmar; Aarsnes, K.
et al. (2003). Ring current dynamics and local time behavior estimated from low-altitude proton observations. (ekstern lenke)
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Mursula, Kalevi; Asikainen, Timo; Kerttula, Raine
et al. (2003). Observations of energetic particles in the dayside magnetosphere by Cluster-ll. (ekstern lenke)
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Svenes, Knut; Stadsnes, Rune; Haaland, Svein
et al. (2003). Study of a near-Earth reconnection event based on Cluster measurements interpreted in a global context. (ekstern lenke)
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Mursula, Kalevi; Asikainen, Timo; Kerttula, Raine
et al. (2003). Observations of energetic particles in the dayside magnetosphere by Cluster-ll. (ekstern lenke)
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Svenes, Knut R.; Stadsnes, Rune; Håland, Stein
et al. (2003). Multiple X-lines observed by Cluster in the near-Earth tail. (ekstern lenke)
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Søraas, Finn
(2003). Ring current dynamics and local time behaviour estimated from low-altitude proton observations. (ekstern lenke)
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Søraas, Finn; Oksavik, Kjellmar; Aarsnes, Kjell
et al. (2003). Ring current dynamics and local time behaviour estimated from low-altitude proton observations. (ekstern lenke)
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Søraas, Finn; Oksavik, Kjellmar; Aarsnes, Kjell
et al. (2003). Ring current dynamics and local time behavior estimated from low-altitude proton observations. (ekstern lenke)
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Aase, Johnny Grøneng; Moen, Jøran Idar; Bekkeng, Jan Kenneth
et al. (2003). ICI-1: A new sounding rocket concept to observe micro-scale physics in the cusp ionosphere. (ekstern lenke)
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Søraas, Finn
(2003). Ring current dynamics and local time behavior estimated from low-altitude proton observations. (ekstern lenke)
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Stadsnes, Rune; Håland, Stein; Svenes, Knut R.
et al. (2002). Example of a near-Earth reconnection event observed by Cluster. (ekstern lenke)
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Mursula, K.; Kerttula, R.; Friedel, R.
et al. (2002). CLUSTER/Rapid energetic particle observations of the dayside magnetospheric boundary. (ekstern lenke)
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Moen, Jøran; Holtet, Jan Arnstein; Pedersen, Arne
et al. (2001). Cluster boundary-layer measurements and optical observations at magnetic conjugate sites. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar
(2001). Ring current intensity estimated from low altitude proton observations. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar
(2001). A space-based DST-index estimated from low altitude proton observations. (ekstern lenke)
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Oksavik, Kjellmar; Søraas, Finn; Aksnes, Arve
et al. (2001). The Svalbard archipelago - a window to CLUSTER. (ekstern lenke)
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Oksavik, Kjellmar; Søraas, Finn; Moen, Jøran
et al. (2001). Optical and particle signatures of the low-latitude boundary layer near noon: Satellite and ground-based observations. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Maaseide, Karl
et al. (2001). Low altitude optical, x-ray and ENA imaging of an auroral arc. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar
(2001). Rocket and satellite observations of energetic particles at high latitudes. (ekstern lenke)
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Håland, Svein; Østgaard, Nikolai; Stadsnes, J.
et al. (2000). Comparison of Energy Spectra in the Ionosphere and in the Central Plasma Sheet During a Magnetospheric Sub-storm. (ekstern lenke)
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Oksavik, Kjellmar; Søraas, Finn; Moen, J.
et al. (2000). Optical and particle signatures of magnetospheric boudary layers near magnetic noon: Satellite and ground-based observations. (ekstern lenke)
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Håland, Stein; Østgaard, Nikolai; Stadsnes, Johan
et al. (2000). Comparison of energy spectra in the ionosphere and in the central plasma sheet during a magnetospheric substorm. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar
(2000). Ring current estimated from low altitude observations. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar
et al. (2000). Low altitude observations of precipitation electrons and protons. (ekstern lenke)
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Oksavik, Kjellmar; Søraas, Finn; Moen, J.
et al. (2000). Optical and particle signatures of magnetospheric boudary layers near magnetic noon: Satellite and ground-based observations. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar
(2000). Ring current estimated from low altitude observations. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar
et al. (2000). Low altitude observations of precipitation electrons and protons. (ekstern lenke)
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Håland, Stein; Østgaard, Nikolai; Stadsnes, Johan
et al. (2000). Comparison of energy spectra in the ionosphere and in the central plasma sheet during a magnetospheric substorm. (ekstern lenke)
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Pfaff, R. F.; Maynard, R.; Søraas, Finn
et al. (1998). DC and Wave Electric Fields and Other Plasma Parameters on Two Sounding Rockets in the Dark Cusp Region During IMF Bz North and South Conditions. (ekstern lenke)
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Stadsnes, Johan; Østgaard, Nikolai; Søraas, Finn
et al. (1997). Coordinated studies of auroral X-rays, optical emissions and precipitating electrons by rockets. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Bjordal, Jon
et al. (1996). PULSAUR II: Pulsating aurora rocket and groundbased observations. An overview. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Bjordal, Jon
et al. (1996). PULSAUR II: Pulsating aurora rocket and groundbased obervations. An overview. (ekstern lenke)
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Stadsnes, Johan; Østgaard, Nikolai; Søraas, Finn
et al. (1996). Electron Flux Modulations During Pulsating Aurora. (ekstern lenke)
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Håheim, G.; Søraas, Finn; Stadsnes, Johan
et al. (1996). PULSAUR II: Ground measurements compared with rocket data. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Bjordal, Jon
et al. (1996). PULSAUR II: Pulsating aurora rocket and groundbased obervations. An overview. (ekstern lenke)
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Østgaard, Nikolai; Stadsnes, Johan; Aarsnes, Kjell
et al. (1996). PULSAUR II: X-ray measurements during a pulsating aurora. (ekstern lenke)
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Søraas, Finn; Stadsnes, Johan; Aarsnes, Kjell
et al. (1995). A Study of Pulsating Aurora by Coordinated Rocket and Ground Based Observations. (ekstern lenke)
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Søraas, Finn; Stadsnes, Jon; Aarsnes, Kjell
et al. (1995). Pulsating Aurora as Observed by the PULSAUR II Sounding Rocket: An Overview. (ekstern lenke)
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Smith, M.; Søraas, Finn; Stadsnes, Johan
et al. (1995). Pulsating Aurora as Observed by the PULSAUR II Sounding Rocket: A Comparison of Particle, X-ray and Photometer Data. (ekstern lenke)
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Måseide, K.; Søraas, Finn; Aarsnes, Kjell
et al. (1995). PULSAUR II: A sounding rocket project to study pulsating aurora and related phenonena. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Bjordal, Jon
et al. (1995). PULSAUR II: Rocket and Groundbased Measurements in a Pulsating Aurora. (ekstern lenke)
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Stadsnes, Johan; Søraas, Finn
(1994). Atomic Physics Applied in Cosmic Geophysics - Aurora and Magnetospheric Physics. (ekstern lenke)
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Daglis, I. A.; Levi, S.; Wilken, B.
et al. (1994). Substorm investigation with the CRRES satellite. (ekstern lenke)
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Stadsnes, Johan; Søraas, Finn
(1994). Atomic Physics Applied in Cosmic Geophysics - Aurora and Magnetospheric Physics. (ekstern lenke)
Poster
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Tyssøy, Hilde Nesse; Ødegaard, Linn-Kristine Glesnes; Stadsnes, Johan
et al. (2019). Electron Pitch Angle Anisotropy in Corotating Interaction Region-Driven Storms – Implications for Energetic Electron Precipitation. (ekstern lenke)
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Tyssøy, Hilde Nesse; Ødegaard, Linn-Kristine Glesnes; Stadsnes, Johan
et al. (2017). Parameterizing Energetic Electron Precipitation in Weak to Moderate Geomagnetic Storm associated with Corotating Interaction Regions. (ekstern lenke)
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Sandanger, Marit Irene J.; Ødegaard, Linn-Kristine Glesnes; Søraas, Finn
et al. (2016). Solar cycle variability in long term particle fluxes as measured by NOAA POES. (ekstern lenke)
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Ødegaard, Linn-Kristine Glesnes; Tyssøy, Hilde Nesse; Søraas, Finn
et al. (2016). Energetic electron precipitation during geomagnetic storms driven by high-speed solar wind streams. (ekstern lenke)
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Tyssøy, Hilde Nesse; Ødegaard, Linn-Kristine Glesnes; Stadsnes, Johan
et al. (2016). Energetic Electron Precipitation in Weak to Moderate Geomagnetic Storm associated with Corotating Interaction Regions. (ekstern lenke)
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Ødegaard, Linn-Kristine Glesnes; Tyssøy, Hilde Nesse; Sandanger, Marit Irene J.
et al. (2015). Relativistic electron precipitation during geomagnetic storm time in the years 2006 – 2010. (ekstern lenke)
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Sandanger, Marit Irene J.; Ødegaard, Linn Kristine G.; Tyssøy, Hilde Nesse
et al. (2014). A new method of recalibrating NOAA MEPED proton measurements. (ekstern lenke)
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Ødegaard, Linn Kristine G.; Sandanger, Marit Irene J.; Søraas, Finn
et al. (2014). Space weather effects on solid state detectors on low altitude polar orbiting satellites. (ekstern lenke)
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Sandanger, Marit Irene J.; Ødegaard, Linn Kristine G.; Tyssøy, Hilde Nesse
et al. (2014). A New Method of recalibrating NOAA POES MEPED proton measurements. (ekstern lenke)
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Sandanger, Marit Irene J.; Tyssøy, Hilde Nesse; Stadsnes, Johan
et al. (2013). Determination of NOAA MEPED correction factors - evaluation of different methods. (ekstern lenke)
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Tyssøy, Hilde Nesse; Stadsnes, Johan; Søraas, Finn
et al. (2013). Variations in cutoff latitude during the January 2012 solar proton event and implication for the distribution of particle energy deposition. (ekstern lenke)
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Ødegaard, Linn-Kristine Glesnes; Oksavik, Kjellmar; Søraas, Finn
et al. (2013). Recalibration of the NOAA/POES MEPED instrument using a statistical approach. (ekstern lenke)
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Sørbø, Marita; Brandt, Pontus; Søraas, Finn
et al. (2007). The Storm Time Equatorial Belt is dominated by Oxygen ions from the ring current. (ekstern lenke)
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Søraas, Finn; Sørbø, Marita
(2007). Ring current behaviour inferred from ground magnetic and space observations. (ekstern lenke)
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Søraas, Finn; Sørbø, Marita; Aarsnes, Kjell
et al. (2006). Ring current behavior inferred from ground magnetic and space observations. (ekstern lenke)
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Sandanger, Marit Irene J.; Søraas, Finn; Aarsnes, Kjell
et al. (2006). Relativistic electrons during high speed solar wind streams. (ekstern lenke)
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Sørbø, Marita; Søraas, Finn
(2006). Ring current processes inferred from precipitating Energetic Neutral Atoms at low latitudes. (ekstern lenke)
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Sørbø, Marita; Søraas, Finn
(2006). Low latitude precipitating Energetic Neutral Atoms reveal properties of the storm time ring current. (ekstern lenke)
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Sørbø, Marita; Søraas, Finn
(2005). Low altitude observations of ENAs. (ekstern lenke)
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Sørbø, Marita; Søraas, Finn
(2005). Low altitude observations of ENAs. (ekstern lenke)
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Sørbø, Marita; Søraas, Finn; Aarsnes, Kjell
et al. (2005). Low latitude precipitation of energetic neutral atoms reflects the ring current pitch angle distribution during storms. (ekstern lenke)
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Oksavik, Kjellmar; Moen, Jøran Idar; Lester, M.
et al. (2004). On the collocation of turbulent electric fields and wide HF spectra. (ekstern lenke)
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Sandanger, M. I.; Søraas, F.; Oksavik, Kjellmar
et al. (2004). Loss of relativistic electrons during HILDCAA events. (ekstern lenke)
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Kerttula, Raine; Mursula, Kalevi; Asikainen, Timo
et al. (2003). Energetic particle acceleration during the main phase of a major magnetic storm. (ekstern lenke)
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Sørbø, Marita; Søraas, Finn; Aarsnes, Kjell
et al. (2003). Multi-spacecraft observations of energetic electron and proton precipitation during geomagnetic storms. (ekstern lenke)
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Svenes, Knut; Stadsnes, Rune; Haaland, Svein
et al. (2003). Case study of a near-earth reconnection event utilizing multipoint satellite observations. (ekstern lenke)
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Stadsnes, Rune; Svenes, Knut; Aarsnes, Kjell
et al. (2003). A comparison between tail and low altitude observations during a long period of enhanced geomagnetic activity. (ekstern lenke)
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Svenes, Knut R.; Stadsnes, Rune; Håland, Stein
et al. (2003). Case study of a near-Earth reconnection event utilizing multipoint satellite observations. (ekstern lenke)
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Oksavik, Kjellmar; Søraas, Finn; Moen, Jøran
et al. (2003). Simultaneous optical, CUTLASS HF radar, and FAST spacecraft observations in the cusp. (ekstern lenke)
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Sandanger, Marit Irene J.; Søraas, Finn; Aarsnes, Kjell
et al. (2003). Particle injection into the auroral/ring current regions during HILDCAA events. (ekstern lenke)
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Evans, David; Greer, Sue; Søraas, Finn
et al. (2003). Long-lived enhancements of >30 keV electron fluxes at very low L-values. (ekstern lenke)
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Sandanger, Marit Irene J.; Søraas, Finn; Aarsnes, Kjell
et al. (2003). A study of particle injection into the Auroral/Ring Current during HILDCAA events. (ekstern lenke)
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Sandanger, Marit Irene J.; Søraas, Finn; Aarsnes, Kjell
et al. (2003). Partikkel injeksjon inn i nordlys- og ringstrøms områdene under HILDCAA. (ekstern lenke)
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Sandanger, M. I.; Søraas, F.; Aarsnes, K.
et al. (2003). A Study of Particle Injection into the Auroral/Ring Current During HILDCAA Events. (ekstern lenke)
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Sandanger, M. I.; Søraas, F.; Aarsnes, K.
et al. (2003). Partikkel injeksjon inn i nordlys- og ringstrømsområdene under HILDCAA. (ekstern lenke)
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Oksavik, Kjellmar; Søraas, F.; Moen, Jøran Idar
et al. (2003). Simultaneous optical, CUTLASS HF radar, and FAST spacecraft observations in the cusp. (ekstern lenke)
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Sørbø, M.; Søraas, F.; Aarsnes, K.
et al. (2003). Multi-spacecraft observations of energetic electron and proton precipitation during geomagnetic storms. (ekstern lenke)
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Evans, D. S.; Greer, M. S.; Søraas, F.
et al. (2003). A long-lived enhancement of >30 keV electron fluxes at very low L-values. (ekstern lenke)
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Sandanger, M. I.; Søraas, F.; Aarsnes, K.
et al. (2003). Particle injection into the auroral/ring current regions during HILDCAA events. (ekstern lenke)
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Stadsnes, R.; Svenes, K.; Aarsnes, K.
et al. (2003). A comparison between tail and low altitude observations during a long period of enhanced geomagnetic activity. (ekstern lenke)
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Søraas, Finn; Oksavik, Kjellmar; Aarsnes, Kjell
et al. (2002). Storm Time Equatorial Belt - an Image of Ring Current Behavior. (ekstern lenke)
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Aarsnes, Kjell; Oksavik, Kjellmar; Søraas, Finn
et al. (2002). Observations of Energetic Particles From the Polar Cap to the Equator During the April 2002 Storms. (ekstern lenke)
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Svenes, Knut R.; Stadsnes, Rune; Håland, Stein
et al. (2002). Four spacecraft study of dipolarization-like signatures at the lobe/plasma sheet interface. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar
et al. (2002). Proton precipitation as a measure of ring current injection. (ekstern lenke)
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Carlsen, Dag Vartdal; Søraas, Finn
(2002). A comparison between Dst based upon SW parameters and proton precipitation. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar
et al. (2002). Storm-time protons observed at L-values below 1.25. (ekstern lenke)
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Oksavik, Kjellmar; Søraas, Finn; Fritz, Theodore A
et al. (2002). Three-dimensional magnetopause sounding using Cluster/RAPID. (ekstern lenke)
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Grande, M.; Carter, M.; Perry, C. H.
et al. (2001). Investigation of energetic electrons in the geotail using Cluster RAPID IES. (ekstern lenke)
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Oksavik, Kjellmar; Fritz, Theodore A.; Zong, Quigang
et al. (2001). Sounding the magnetopause surface in three-dimensions with Cluster/RAPID. (ekstern lenke)
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Oksavik, Kjellmar; Søraas, Finn; Moen, Jøran
et al. (2001). Open and closed LLBL: Optical and particle signatures. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar
et al. (1999). Low Altitude Observations of Ring Current Particles. (ekstern lenke)
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Håland, Stein Egil; Søraas, Finn; Ullaland, Stein
(1999). GEOTAIL HEP-LD Results: 1: Propagation Velocities and Dimensions of Flux Rope Structures in the Near-Earth Magnetotail. (ekstern lenke)
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Måseide, K.; Søraas, Finn; Aarsnes, Kjell
et al. (1995). A Comparison of Optical Emissions, X-rays and Particle Measurements in a Pulsating Aurora. (ekstern lenke)
Vitenskapelig artikkel
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Søraas, Finn; Sandanger, Marit Irene J.; Smith-Johnsen, Christine
(2018). NOAA POES and MetOp particle observations during the 17 March 2013 storm. (ekstern lenke)
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Zhou, Su; Luan, Xiaoli; Søraas, Finn
et al. (2018). The detached auroras induced by the solar wind pressure enhancement in both hemispheres from imaging and in situ particle observations. (ekstern lenke)
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Ødegaard, Linn-Kristine Glesnes; Tyssøy, Hilde Nesse; Søraas, Finn
et al. (2017). Energetic electron precipitation in weak to moderate corotating interaction region-driven storms. (ekstern lenke)
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Goldstein, Jerry; Bisikalo, Dmitry V.; Shematovich, Valery I.
et al. (2016). Analytical estimate for low-altitude ENA emissivity. (ekstern lenke)
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Ødegaard, Linn-Kristine Glesnes; Tyssøy, Hilde Nesse; Sandanger, Marit Irene J.
et al. (2016). Space Weather impact on the degradation of NOAA POES MEPED proton detectors. (ekstern lenke)
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Sandanger, Marit Irene J.; Ødegaard, Linn-Kristine Glesnes; Tyssøy, Hilde Nesse
et al. (2015). In-flight calibration of NOAA POES proton detectors - Derivation of the MEPED correction factors. (ekstern lenke)
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Kozyra, Janet U.; Liemohn, Michael W.; Cattell, Cynthia A.
et al. (2014). Solar filament impact on 21 January 2005: Geospace consequences. (ekstern lenke)
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Søraas, Finn; Sørbø, Marita
(2013). Low altitude observations of ENA from the ring current and from the proton oval. (ekstern lenke)
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Søraas, Finn; Laundal, Karl Magnus; Usanova, Maria E.
(2013). Coincident particle and optical observations of nightside subauroral proton precipitation. (ekstern lenke)
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Tyssøy, Hilde Nesse; Stadsnes, Johan; Søraas, Finn
et al. (2013). Variations in cutoff latitude during the January 2012 solar proton event and implication for the distribution of particle energy deposition. (ekstern lenke)
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Goldstein, Jerry; McComas, David J.; Valek, Philip
et al. (2013). Local-time-dependent low-altitude ion spectra deduced from TWINS ENA images. (ekstern lenke)
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Engebretson, Mark J.; Yeoman, Timothy Kenneth; Oksavik, Kjellmar
et al. (2013). Multi-instrument observations from Svalbard of a traveling convection vortex, electromagnetic ion cyclotron wave burst, and proton precipitation associated with a bow shock instability. (ekstern lenke)
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Daae, Marianne; Espy, Patrick Joseph; Tyssøy, Hilde Nesse
et al. (2012). The effect of energetic electron precipitation on middle mesospheric night-time ozone during and after a moderate geomagnetic storm. (ekstern lenke)
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Bugiolacchi, Roberto; Mall, Urs; Bhatt, Megha
et al. (2011). An in-depth look at the lunar crater Copernicus: Exposed mineralogy by high-resolution near-infrared spectroscopy. (ekstern lenke)
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Usanova, Maria E.; Mann, Ian R.; Kale, Zoe C.
et al. (2010). Conjugate ground and multisatellite observations of compression-related EMIC Pc1 waves and associated proton precipitation. (ekstern lenke)
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Sørbø, Marita; Søraas, Finn; Sandanger, Marit Irene J.
et al. (2009). Ring current behaviour during corotating interaction region and high speed stream events. (ekstern lenke)
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Pollock, CJ; Isaksson, A; Jahn, JM
et al. (2009). Remote global-scale observations of intense low-altitude ENA emissions during the Halloween geomagnetic storm of 2003. (ekstern lenke)
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Sandanger, M.I.; Søraas, F.; Sørbø, M.
et al. (2009). Relativistic electron losses related to EMIC waves during CIR and CME storms. (ekstern lenke)
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Mall, Urs; Brønstad, Kjell; Ullaland, Kjetil
et al. (2009). Near Infrared Spectrometer SIR-2 on Chandrayaan-1. (ekstern lenke)
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Sandanger, Marit Irene J.; Søraas, Finn; Aarsnes, Kjell
et al. (2007). Loss of relativistic electrons: Evidence for pitch angle scattering by electromagnetic ion cyclotron waves excited by unstable ring current protons. (ekstern lenke)
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Sørbø, Marita; Søraas, Finn; Aarsnes, Kjell
et al. (2006). Latitude distribution of vertically precipitating energetic neutral atoms observed at low altitudes. (ekstern lenke)
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Sandanger, M. I.; Søraas, F.; Aarsnes, K.
et al. (2005). Proton injections into the ring current associated with Bz variations during HILDCAA events. (ekstern lenke)
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Kerttula, Raine; Mursula, Kalevi; Asikainen, Timo
et al. (2005). Energetic particle acceleration during a major magnetic storm. (ekstern lenke)
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Mursula, Kalevi; Kerttula, Raine; Asikainen, Timo
et al. (2005). Cluster/rapid energetic electron observations at the dayside magnetospheric boundary. (ekstern lenke)
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Søraas, F.; Aarsnes, K.; Carlsen, D. V.
et al. (2005). Ring current behavior as revealed by energetic proton precipitation. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar
et al. (2004). Evidence for particle injection as the cause of D-st reduction during HILDCAA events. (ekstern lenke)
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Søraas, F.; Aarsnes, K.; Oksavik, Kjellmar
et al. (2004). Evidence for particle injection as the cause of Dst reduction during HILDCAA events. (ekstern lenke)
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Søraas, Finn; Oksavik, Kjellmar; Aarsnes, Kjell
et al. (2003). Storm time equatorial belt - an "image" of RC behavior. (ekstern lenke)
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Oksavik, Kjellmar; Fritz, Theodore A; Zong, Quigang
et al. (2002). Three-dimensional energetic ion sounding of the magnetopause using Cluster/RAPID. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar
et al. (2002). Ring current intensity estimated from low-altitude proton observations. (ekstern lenke)
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Moen, Jøran; Holtet, Jan Arnstein; Pedersen, Arne
et al. (2001). Cluster boundary-layer measurements and optical observations at magnetically conjugate sites. (ekstern lenke)
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Oksavik, Kjellmar; Søraas, Finn; Moen, J.
et al. (2000). Optical and particle signatures of magnetospheric boundary layers near magnetic noon: Satellite and ground-based observations. (ekstern lenke)
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Maynard, N.C.; Burke, W.J.; Pfaff, R.F.
et al. (2000). Dayside convection with northward IMF: Observations of a sounding rocket from Svalbard. (ekstern lenke)
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Maynard, N.C.; Burke, W.J.; Pfaff, R.F.
et al. (2000). Dayside convection with northward IMF: Observations of a sounding rocket from Svalbard. (ekstern lenke)
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Oksavik, Kjellmar; Søraas, Finn; Moen, J.
et al. (2000). Optical and particle signatures of magnetospheric boundary layers near magnetic noon: Satellite and ground-based observations. (ekstern lenke)
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Håland, Stein Egil; Søraas, Finn; Ullaland, Stein
(1999). Propagation Velocities and Dimensions of Plasmoid Structures in the Near-Earth Magnetotail. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Lundblad, Jan Åke
et al. (1999). Enhanced pitch angle scattering of protons at mid-latitudes during geomagnetic storms. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Lundblad, J. Å.
et al. (1999). Enhanced pitch angle scattering of protons at mid-latitudes during geomagnetic storms. (ekstern lenke)
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Håland, S.; Søraas, Finn; Ullaland, S. L.
(1999). Propagation velocities and dimensions of flux rope formation in the near-earth magnetotail. (ekstern lenke)
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Østgaard, Nikolai; Stadsnes, Johan; Aarsnes, Kjell
et al. (1998). Simultaneous measurements of x-rays and electrons during a pulsating aurora. (ekstern lenke)
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Synnes, S. A.; Søraas, Finn; Hansen, Jan Petter
(1998). Monte-Carlo simulations of proton aurora. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Lundblad, J. Aa.
et al. (1998). Enhanced pitch angle scattering of protons at mid-latitudes during geomagnetic storms. (ekstern lenke)
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Synnes, S.A.; Søraas, Finn; Hansen, Jan Petter
(1998). Monte-Carlo simulations of proton aurora. (ekstern lenke)
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Østgaard, Nikolai; Stadsnes, Johan; Aarsnes, Kjell
et al. (1998). Simultaneous Measurements of X-rays and Electrons During a Pulsating Aurora. (ekstern lenke)
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Wilken, B; Søraas, Finn
(1997). RAPID: The imaging energetic particle spectrometer on cluster. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell
(1996). Observations of ENA in and near a proton arc. (ekstern lenke)
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Daglis, I.A.; Axford, W.I.; Livi, S.
et al. (1996). Auroral ionospheric ion feeding of the inner plasma sheet during substorms. (ekstern lenke)
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Daglis, I.; Axford, W. I.; Livi, S.
et al. (1996). Auroral ionospheric ion feeding of the inner plasma sheet during substroms. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell
(1996). Observations of ENA in and near a proton arc. (ekstern lenke)
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Søraas, Finn; Måseide, K.; Torheim, P.
et al. (1994). Doppler-shifted auroral H-beta emission: a comparison between obaervatons and calculations. (ekstern lenke)
Faglig foredrag
Doktorgradsavhandling
Vitenskapelig oversiktsartikkel/review
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
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Søraas, Finn; Sørbø, Marita; Aarsnes, Kjell
et al. (2006). Ring current behavior inferred from ground magnetic and space observations. (ekstern lenke)
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Søraas, Finn; Aarsnes, Kjell; Carlsen, Dag Vartdal
et al. (2005). Ring current behavior as revealed by energetic proton precipitation. (ekstern lenke)
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Asikainen, Timo; Mursula, Kalevi; Kerttula, Raine
et al. (2005). Global view of energetic particles during a major magnetic storm. (ekstern lenke)
-
Sandanger, Marit Irene J.; Oksavik, Kjellmar; Søraas, Finn
et al. (2005). Proton Injections Into the Ring Current Associated With Bz Variations During HILDCAA Events. (ekstern lenke)
-
Søraas, Finn
(2000). Auroral protons, ENA and Doppler shifted hydrogen lines. (ekstern lenke)
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Lockwood, M.; Fuselier, S.; Walker, A. D. M.
et al. (1998). A summary of NATO ASI on polar cap boundary phenomena. (ekstern lenke)
Mastergradsoppgave
Vitenskapelig monografi
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Søraas, Finn; Aarsnes, Kjell; Carlsen, Dag Vartdal
et al. (2005). Ring current behavior as revealed by energetic proton precipitation. (ekstern lenke)
-
Asikainen, Timo; Mursula, Kalevi; Kerttula, Raine
et al. (2005). Global view of energetic particles during a major magnetic storm. (ekstern lenke)
-
Sandanger, Marit Irene J.; Søraas, Finn; Aarsnes, Kjell
et al. (2005). Proton Injections Into the Ring Current Associated With Bz Variations During HILDCAA Events. (ekstern lenke)
-
Lockwood, M; Fuselier, S.; Walker, A. D. M.
et al. (1998). A summary of NATO ASI on polar cap boundary phenomena. (ekstern lenke)
Programdeltagelse
Populærvitenskapelig bok
Rapport
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