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Finn Søraas's picture
  • E-mailFinn.Soraas@uib.no
  • Phone+47 55 58 27 14
  • Visitor Address
    Allegt. 55
  • Postal Address
    Postboks 7803
    5020 BERGEN
Academic article
  • 2018. The detached auroras induced by the solar wind pressure enhancement in both hemispheres from imaging and in situ particle observations. Journal of Geophysical Research (JGR): Space Physics. 3170-3182.
  • 2018. NOAA POES and MetOp particle observations during the 17 March 2013 storm. Journal of Atmospheric and Solar-Terrestrial Physics. 115-124.
  • 2017. Energetic electron precipitation in weak to moderate corotating interaction region-driven storms. Journal of Geophysical Research (JGR): Biogeosciences. 2900-2921.
  • 2016. Space Weather impact on the degradation of NOAA POES MEPED proton detectors. Journal of Space Weather and Space Climate. 15 pages.
  • 2016. Analytical estimate for low-altitude ENA emissivity. Journal of Geophysical Research (JGR): Biogeosciences. 1167-1191.
  • 2015. In-flight calibration of NOAA POES proton detectors - Derivation of the MEPED correction factors. Journal of Geophysical Research (JGR): Space Physics. 9578-9593.
  • 2014. Solar filament impact on 21 January 2005: Geospace consequences. Journal of Geophysical Research (JGR): Biogeosciences. 5401-5448.
  • 2013. Variations in cutoff latitude during the January 2012 solar proton event and implication for the distribution of particle energy deposition. Geophysical Research Letters. 4149-4153.
  • 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. Journal of Geophysical Research (JGR): Space Physics. 2975-2997.
  • 2013. Low altitude observations of ENA from the ring current and from the proton oval. Journal of Atmospheric and Solar-Terrestrial Physics. 104-110.
  • 2013. Local-time-dependent low-altitude ion spectra deduced from TWINS ENA images. Journal of Geophysical Research (JGR): Space Physics. 2928-2950.
  • 2013. Coincident particle and optical observations of nightside subauroral proton precipitation. Journal of Geophysical Research (JGR): Space Physics. 1112-1122.
  • 2012. The effect of energetic electron precipitation on middle mesospheric night-time ozone during and after a moderate geomagnetic storm. Geophysical Research Letters.
  • 2011. An in-depth look at the lunar crater Copernicus: Exposed mineralogy by high-resolution near-infrared spectroscopy. Icarus (New York, N.Y. 1962). 43-63.
  • 2010. Conjugate ground and multisatellite observations of compression-related EMIC Pc1 waves and associated proton precipitation. Journal of Geophysical Research (JGR): Space Physics. 14 pages.
  • 2009. Ring current behaviour during corotating interaction region and high speed stream events. Journal of Atmospheric and Solar-Terrestrial Physics. 1103-1125.
  • 2009. Remote global-scale observations of intense low-altitude ENA emissions during the Halloween geomagnetic storm of 2003. Geophysical Research Letters. 5 pages.
  • 2009. Relativistic electron losses related to EMIC waves during CIR and CME storms. Journal of Atmospheric and Solar-Terrestrial Physics. 1126-1144.
  • 2009. Near Infrared Spectrometer SIR-2 on Chandrayaan-1. Current Science. 506-511.
  • 2007. Loss of relativistic electrons: Evidence for pitch angle scattering by electromagnetic ion cyclotron waves excited by unstable ring current protons. Journal of Geophysical Research (JGR).
  • 2006. Latitude distribution of vertically precipitating energetic neutral atoms observed at low altitudes. Geophysical Research Letters. 4 pages.
  • 2005. Ring current behavior as revealed by energetic proton precipitation. Geophysical Monograph. 11 pages.
  • 2005. Proton injections into the ring current associated with Bz variations during HILDCAA events. Geophysical Monograph. 7 pages.
  • 2005. Energetic particle acceleration during a major magnetic storm. Advances in Space Research. 1835-1839.
  • 2005. Cluster/rapid energetic electron observations at the dayside magnetospheric boundary. Advances in Space Research. 1904-1908.
  • 2004. Evidence for particle injection as the cause of Dst reduction during HILDCAA events. Journal of Atmospheric and Solar-Terrestrial Physics. 177-186.
  • 2004. Evidence for particle injection as the cause of D-st reduction during HILDCAA events. Journal of Atmospheric and Solar-Terrestrial Physics. 177-186.
  • 2003. Storm time equatorial belt - an "image" of RC behavior. Geophysical Research Letters. 1052-1055.
  • 2002. Three-dimensional energetic ion sounding of the magnetopause using Cluster/RAPID. Geophysical Research Letters. 4 pages.
  • 2002. Ring current intensity estimated from low-altitude proton observations. Journal of Geophysical Research (JGR). 10 pages.
  • 2001. Cluster boundary-layer measurements and optical observations at magnetically conjugate sites. Annales Geophysicae. 1655-1668.
  • 2000. Optical and particle signatures of magnetospheric boundary layers near magnetic noon: Satellite and ground-based observations. Journal of Geophysical Research (JGR). 27555-27568.
  • 2000. Optical and particle signatures of magnetospheric boundary layers near magnetic noon: Satellite and ground-based observations. Journal of Geophysical Research (JGR). 27555-27568.
  • 2000. Dayside convection with northward IMF: Observations of a sounding rocket from Svalbard. Journal of Geophysical Research (JGR). 5245-5263.
  • 2000. Dayside convection with northward IMF: Observations of a sounding rocket from Svalbard. Journal of Geophysical Research (JGR). 5245-5263.
  • 1999. Propagation velocities and dimensions of flux rope formation in the near-earth magnetotail. Geophysical Research Letters. 3269-3272.
  • 1999. Propagation Velocities and Dimensions of Plasmoid Structures in the Near-Earth Magnetotail. Geophysical Research Letters. 3269-3272.
  • 1999. Enhanced pitch angle scattering of protons at mid-latitudes during geomagnetic storms. Physics and Chemistry of the Earth, Part C: Solar, Terrestial & Planetary Science. 287-292.
  • 1999. Enhanced pitch angle scattering of protons at mid-latitudes during geomagnetic storms. Physics and Chemistry of the Earth, Part C: Solar, Terrestial & Planetary Science. 287-292.
  • 1998. Simultaneous measurements of x-rays and electrons during a pulsating aurora. Annales Geophysicae. 148-160.
  • 1998. Simultaneous Measurements of X-rays and Electrons During a Pulsating Aurora. Annales Geophysicae. 148-160.
  • 1998. Monte-Carlo simulations of proton aurora. Journal of Atmospheric and Terrestrial Physics.
  • 1998. Monte-Carlo simulations of proton aurora. Journal of Atmospheric and Solar-Terrestrial Physics. 1695-1705.
  • 1998. Enhanced pitch angle scattering of protons at mid-latitudes during geomagnetic storms. Physics and Chemistry of the Earth.
  • 1997. RAPID: The imaging energetic particle spectrometer on cluster. Space Science Reviews. 399-473.
  • 1996. Observations of ENA in and near a proton arc. Geophysical Research Letters. 2959-2962.
  • 1996. Observations of ENA in and near a proton arc. Geophysical Research Letters. 2959-2962.
  • 1996. Auroral ionospheric ion feeding of the inner plasma sheet during substroms. Journal of Geomagnetism and Geoelectricity. 729-739.
  • 1996. Auroral ionospheric ion feeding of the inner plasma sheet during substorms. Journal of Geomagnetism and Geoelectricity.
  • 1994. Doppler-shifted auroral H-beta emission: a comparison between obaervatons and calculations. Annales Geophysicae. 1052-1064.
Lecture
  • 2015. Particle Detector - Bounce Loss Cone Fluxes .
  • 2013. The Asymmetric and symmetric ring current as revealed by precipitating protons/ENA and ground based magnetic observations.
Popular scientific lecture
  • 2001. Nordlyset: Fra mytologi til romforskning.
  • 1994. Raketter, satellitter og romforskning.
Academic lecture
  • 2019. Electron pitch angle anisotropy in corotating interaction region-driven storms – implications for radiation belt loss and electron precipitation.
  • 2018. Radiation Belt Loss due to Energetic Electron Precipitation in Geomagnetic Storm associated with Corotating Interaction Regions.
  • 2016. Trapped and Precipitating Energetic Electrons during Geomagnetic Storms Driven by Corotating Interaction Regions (CIRs).
  • 2014. Ring current behavior revealed by low altitude observations of auroral and equatorial particle precipitation.
  • 2013. Variations in cutoff latitude and implication for the distribution of particle deposition during solar proton events.
  • 2013. Variation in cutoff latitudes during solar proton events and implication for the distribution of particle energy deposition in the upper atmosphere.
  • 2013. Strong day-night asymmetry in cutoff latitude and implication for the distribution of particle energy deposition during solar proton events.
  • 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.
  • 2012. Energetic particle precipitation and ionization effects in the mesosphere during the solar energetic particle events 23 - 30 January 2012.
  • 2011. The effect of radiation belt particles on middle atmospheric nighttime ozone during enhanced geomagnetic activity.
  • 2011. The effect of radiation belt particles on middle atmospheric night time ozone during enhanced geomagnetic activity.
  • 2011. Particle and optical observations of subauroral proton precipitation.
  • 2011. Observations of energetic protons and neutral atoms (ENA) at low altitudes during geomagnetic storms.
  • 2011. Observations of energetic protons and auroral light during geomagnetic storms.
  • 2011. Determination of polar cap size and shape using energetic particles.
  • 2011. A cooling effect in the upper mesosphere associated with the 2003 Halloween storms.
  • 2011. A cooling effect in the upper mesosphere associated with the 2003 Halloween storms.
  • 2009. Upper Mesospheric and Lower Thermospheric Temperature Effects Caused by Energetic Particle Precipitation During the 2003 Halloween Storm.
  • 2009. On the investigation of cusp irregularities by sounding rockets.
  • 2009. On the Investigation of cusp irregularities by sounding rockets.
  • 2007. The ring current behaviour during high speed stream events asrevealed by precipitating particles and the STEB.
  • 2007. The ring current as revealed by the STEB (Storm Time Equatorial Belt).
  • 2007. Storm Time Equatorial Belt er dominert av oksygenioner frå ringstraumen.
  • 2007. On the relationship between precipitating protons and loss of relativistic electrons. The ring current behaviour as reveald by by the STEB.
  • 2007. Anisotropic proton precipitation and loss of relativistic electrons by the NOAA satellites related to EMIC waves.
  • 2006. Injection and loss processes of 30 to 300 keV particles and relativistic electrons during CIR and non-CIR storms.
  • 2006. Injection and Loss Processes of 30 to 300 keV Particles and Relativistic Electrons During CIR and Non-CIR Storms.
  • 2006. ICME and CIR storms with particular emphases on HILDCAA events.
  • 2006. Energetic Neutral Atom (ENA) measurements from IMAGE compared with low altitude measurements of Storm Time Equatorial Belt.
  • 2005. Breiddefordelinga til Storm Time Equatorial Belt, observasjonar og teori.
  • 2004. Relativistic electron losses in regions of anisotropic proton precipitation.
  • 2004. Electric and magnetic field and particle observations on Cluster combined with ground-based observations during substorms.
  • 2004. Electric and magnetic field and particle observations on Cluster combined with ground-based observations during substorms.
  • 2003. Study of a near-Earth reconnection event based on Cluster measurements interpreted in a global context.
  • 2003. Ring current dynamics and local time behaviour estimated from low-altitude proton observations.
  • 2003. Ring current dynamics and local time behaviour estimated from low-altitude proton observations.
  • 2003. Ring current dynamics and local time behaviour estimated from low-altitude proton observations.
  • 2003. Ring current dynamics and local time behaviour estimated from low-altitude proton observations.
  • 2003. Ring current dynamics and local time behavior estimated from low-altitude proton observations.
  • 2003. Ring current dynamics and local time behavior estimated from low-altitude proton observations.
  • 2003. Ring current dynamics and local time behavior estimated from low-altitude proton observations.
  • 2003. Observations of energetic particles in the dayside magnetosphere by Cluster-ll.
  • 2003. Observations of energetic particles in the dayside magnetosphere by Cluster-ll.
  • 2003. Multiple X-lines observed by Cluster in the near-Earth tail.
  • 2002. Example of a near-Earth reconnection event observed by Cluster.
  • 2002. CLUSTER/Rapid energetic particle observations of the dayside magnetospheric boundary.
  • 2001. The Svalbard archipelago - a window to CLUSTER.
  • 2001. Rocket and satellite observations of energetic particles at high latitudes.
  • 2001. Ring current intensity estimated from low altitude proton observations.
  • 2001. Optical and particle signatures of the low-latitude boundary layer near noon: Satellite and ground-based observations.
  • 2001. Low altitude optical, x-ray and ENA imaging of an auroral arc.
  • 2001. Cluster boundary-layer measurements and optical observations at magnetic conjugate sites.
  • 2001. A space-based DST-index estimated from low altitude proton observations.
  • 2000. Ring current estimated from low altitude observations.
  • 2000. Ring current estimated from low altitude observations.
  • 2000. Optical and particle signatures of magnetospheric boudary layers near magnetic noon: Satellite and ground-based observations.
  • 2000. Optical and particle signatures of magnetospheric boudary layers near magnetic noon: Satellite and ground-based observations.
  • 2000. Low altitude observations of precipitation electrons and protons.
  • 2000. Low altitude observations of precipitation electrons and protons.
  • 2000. Comparison of energy spectra in the ionosphere and in the central plasma sheet during a magnetospheric substorm.
  • 2000. Comparison of energy spectra in the ionosphere and in the central plasma sheet during a magnetospheric substorm.
  • 2000. Comparison of Energy Spectra in the Ionosphere and in the Central Plasma Sheet During a Magnetospheric Sub-storm.
  • 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.
  • 1997. Coordinated studies of auroral X-rays, optical emissions and precipitating electrons by rockets.
  • 1996. PULSAUR II: X-ray measurements during a pulsating aurora.
  • 1996. PULSAUR II: Pulsating aurora rocket and groundbased observations. An overview.
  • 1996. PULSAUR II: Pulsating aurora rocket and groundbased obervations. An overview.
  • 1996. PULSAUR II: Pulsating aurora rocket and groundbased obervations. An overview.
  • 1996. PULSAUR II: Ground measurements compared with rocket data.
  • 1996. Electron Flux Modulations During Pulsating Aurora.
  • 1995. Pulsating Aurora as Observed by the PULSAUR II Sounding Rocket: An Overview.
  • 1995. Pulsating Aurora as Observed by the PULSAUR II Sounding Rocket: A Comparison of Particle, X-ray and Photometer Data.
  • 1995. PULSAUR II: Rocket and Groundbased Measurements in a Pulsating Aurora.
  • 1995. PULSAUR II: A sounding rocket project to study pulsating aurora and related phenonena.
  • 1995. A Study of Pulsating Aurora by Coordinated Rocket and Ground Based Observations.
  • 1994. Substorm investigation with the CRRES satellite.
  • 1994. Atomic Physics Applied in Cosmic Geophysics - Aurora and Magnetospheric Physics.
  • 1994. Atomic Physics Applied in Cosmic Geophysics - Aurora and Magnetospheric Physics.
Academic monograph
  • 2005. Ring current behavior as revealed by energetic proton precipitation. 155.
  • 2005. Proton Injections Into the Ring Current Associated With Bz Variations During HILDCAA Events. 155.
  • 2005. Global view of energetic particles during a major magnetic storm. 155.
  • 1998. A summary of NATO ASI on polar cap boundary phenomena. 509.
Doctoral dissertation
  • 2009. Dynamics of the storm time ring current and relativistic electrons – Particle scattering by ion cyclotron waves inside the anisotropic proton zone.
  • 2008. Energetic particles at low altitudes in the equatorial region - Temporal/spatial variations and implications for the source region.
Academic chapter/article/Conference paper
  • 2006. Ring current behavior inferred from ground magnetic and space observations.
  • 2005. Ring current behavior as revealed by energetic proton precipitation. 12 pages.
  • 2005. Proton Injections Into the Ring Current Associated With Bz Variations During HILDCAA Events. 7 pages.
  • 2005. Global view of energetic particles during a major magnetic storm. 8 pages.
  • 2000. Auroral protons, ENA and Doppler shifted hydrogen lines. 9 pages.
  • 1998. A summary of NATO ASI on polar cap boundary phenomena. 18 pages.
Poster
  • 2019. Electron Pitch Angle Anisotropy in Corotating Interaction Region-Driven Storms – Implications for Energetic Electron Precipitation.
  • 2017. Parameterizing Energetic Electron Precipitation in Weak to Moderate Geomagnetic Storm associated with Corotating Interaction Regions.
  • 2016. Solar cycle variability in long term particle fluxes as measured by NOAA POES.
  • 2016. Energetic electron precipitation during geomagnetic storms driven by high-speed solar wind streams.
  • 2016. Energetic Electron Precipitation in Weak to Moderate Geomagnetic Storm associated with Corotating Interaction Regions.
  • 2015. Relativistic electron precipitation during geomagnetic storm time in the years 2006 – 2010.
  • 2014. Space weather effects on solid state detectors on low altitude polar orbiting satellites.
  • 2014. A new method of recalibrating NOAA MEPED proton measurements.
  • 2014. A New Method of recalibrating NOAA POES MEPED proton measurements.
  • 2013. Variations in cutoff latitude during the January 2012 solar proton event and implication for the distribution of particle energy deposition.
  • 2013. Recalibration of the NOAA/POES MEPED instrument using a statistical approach.
  • 2013. Determination of NOAA MEPED correction factors - evaluation of different methods.
  • 2007. The Storm Time Equatorial Belt is dominated by Oxygen ions from the ring current.
  • 2007. Ring current behaviour inferred from ground magnetic and space observations.
  • 2006. Ring current processes inferred from precipitating Energetic Neutral Atoms at low latitudes.
  • 2006. Ring current behavior inferred from ground magnetic and space observations.
  • 2006. Relativistic electrons during high speed solar wind streams.
  • 2006. Low latitude precipitating Energetic Neutral Atoms reveal properties of the storm time ring current.
  • 2005. Low latitude precipitation of energetic neutral atoms reflects the ring current pitch angle distribution during storms.
  • 2005. Low altitude observations of ENAs.
  • 2005. Low altitude observations of ENAs.
  • 2004. On the collocation of turbulent electric fields and wide HF spectra.
  • 2004. Loss of relativistic electrons during HILDCAA events.
  • 2003. Simultaneous optical, CUTLASS HF radar, and FAST spacecraft observations in the cusp.
  • 2003. Simultaneous optical, CUTLASS HF radar, and FAST spacecraft observations in the cusp.
  • 2003. Partikkel injeksjon inn i nordlys- og ringstrømsområdene under HILDCAA.
  • 2003. Partikkel injeksjon inn i nordlys- og ringstrøms områdene under HILDCAA.
  • 2003. Particle injection into the auroral/ring current regions during HILDCAA events.
  • 2003. Particle injection into the auroral/ring current regions during HILDCAA events.
  • 2003. Multi-spacecraft observations of energetic electron and proton precipitation during geomagnetic storms.
  • 2003. Multi-spacecraft observations of energetic electron and proton precipitation during geomagnetic storms.
  • 2003. Long-lived enhancements of >30 keV electron fluxes at very low L-values.
  • 2003. Energetic particle acceleration during the main phase of a major magnetic storm.
  • 2003. Case study of a near-earth reconnection event utilizing multipoint satellite observations.
  • 2003. Case study of a near-Earth reconnection event utilizing multipoint satellite observations.
  • 2003. A study of particle injection into the Auroral/Ring Current during HILDCAA events.
  • 2003. A long-lived enhancement of >30 keV electron fluxes at very low L-values.
  • 2003. A comparison between tail and low altitude observations during a long period of enhanced geomagnetic activity.
  • 2003. A comparison between tail and low altitude observations during a long period of enhanced geomagnetic activity.
  • 2003. A Study of Particle Injection into the Auroral/Ring Current During HILDCAA Events.
  • 2002. Three-dimensional magnetopause sounding using Cluster/RAPID.
  • 2002. Storm-time protons observed at L-values below 1.25.
  • 2002. Storm Time Equatorial Belt - an Image of Ring Current Behavior.
  • 2002. Proton precipitation as a measure of ring current injection.
  • 2002. Observations of Energetic Particles From the Polar Cap to the Equator During the April 2002 Storms.
  • 2002. Four spacecraft study of dipolarization-like signatures at the lobe/plasma sheet interface.
  • 2002. A comparison between Dst based upon SW parameters and proton precipitation.
  • 2001. Sounding the magnetopause surface in three-dimensions with Cluster/RAPID.
  • 2001. Open and closed LLBL: Optical and particle signatures.
  • 2001. Investigation of energetic electrons in the geotail using Cluster RAPID IES.
  • 1999. Low Altitude Observations of Ring Current Particles.
  • 1999. GEOTAIL HEP-LD Results: 1: Propagation Velocities and Dimensions of Flux Rope Structures in the Near-Earth Magnetotail.
  • 1995. A Comparison of Optical Emissions, X-rays and Particle Measurements in a Pulsating Aurora.
Popular scientific book
  • 2000. Auroral protons, ENA and Doppler shifted hydrogenlines, artikkel i "Historen om Andøya Rakettskytefelt". Andøya Rakettskytefelt.
Academic literature review
  • 2006. Corotating solar wind streams and recurrent geomagnetic activity: A review.
  • 2004. Simultaneous optical, CUTLASS HF radar, and FAST spacecraft observations: signatures of boundary layer processes in the cusp. 511-525.

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