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Kjellmar Oksavik's picture

Kjellmar Oksavik

Professor, Birkeland Centre for Space Science
  • E-mailKjellmar.Oksavik@uib.no
  • Phone+47 55 58 83 38+47 920 86 971
  • Visitor Address
    Allégaten 55
    5007 Bergen
    Room 
    433
  • Postal Address
    Postboks 7803
    5020 BERGEN

Teaching:

  • PHYS109  Introduction in Astrophysics
  • AGF301 The Upper Polar Atmosphere

Research:

  • Rowland, Douglas E.; Burchill, Jonathan; Clemmons, J.; Collier, M; Di Mare, Francesca; Hecht, J; Jones, S; Keller, J; Kepko, L.; Klenzing, J.; Lester, Mark; McLain, J; Michell, R.; Moen, Jøran Idar; Oksavik, Kjellmar; Paschalidis, N; Pfaff, R.; Sigernes, Fred; Spicher, Andres; Zettergren, M. 2019. VISIONS-2: Imaging ion energization in the cusp.
  • Rowland, Douglas E.; Moen, Jøran Idar; Pfaff, Robert F.; Clemmons, J.H.; Spicher, Andres; Freudenreich, H.; Sigernes, Fred; Oksavik, Kjellmar; Hecht, J. H.; Collier, M; Keller, J; McLain, J; Zettergren, Matthew D.; Klenzing, J.; Kepko, L.; Lester, Mark. 2019. VISIONS-2 observations of the electrodynamics of magnetosphere-ionosphere coupling.
  • Rowland, Douglas E.; Moen, Jøran Idar; Pfaff, Robert F.; Clemmons, J.H.; Spicher, Andres; Freudenreich, H.; Sigernes, Fred; Oksavik, Kjellmar; Hecht, J. H.; Collier, M; Keller, J; McLain, J; Zettergren, Matthew D.; Klenzing, J.; Kepko, L.; Lester, Mark. 2019. VISIONS-2 observations of ion heating and energization near the exobase, and the role of wave-particle interactions.
  • Clemmons, J.H.; Rowland, Douglas E.; Hecht, J. H.; Pfaff, Robert F.; Michell, Robert; Moen, Jøran Idar; Oksavik, Kjellmar; Sigernes, Fred; Lester, Mark; Spicher, Andres. 2019. VISIONS-2 Observations of Electron Dynamics and Alfvén Waves.
  • Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad; Laundal, Karl Magnus. 2019. Thermally excited 630.0 nm emissions in the polar ionosphere.
  • Ma, Yu-Zhang; Zhang, Qing-He; Xing, Zan-Yang; Heelis, Roderick A.; Oksavik, Kjellmar; Wang, Yong. 2019. The Ion/Electron Temperature Characteristics of Polar Cap Classical and Hot Patches and Their Influence on Ion Upflow.
  • LaBelle, James; Kletzing, Craig A.; Moen, Jøran Idar; Bounds, Scott; Moser, C.; Oksavik, Kjellmar; Yeoman, Timothy K; Hatch, Spencer Mark; McGaw, D. 2019. The Cusp Alfven and Plasma Electrodynamics 2 Mission.
  • Zhou, Shan-Yu; Zhang, Qing-He; Jayachandran, Periyadan T.; Oksavik, Kjellmar; Lyons, Larry R.; Xing, Zan-Yang; Ma, Yu-Zhang; Hairston, Marc; Wang, Yong. 2019. Statistical study of the relationship between ion upflow and field-aligned current in the topside ionosphere for both hemispheres during disturbed and quiet times.
  • Zhou, Shan-Yu; Zhang, Qing-He; Oksavik, Kjellmar; Lyons, Larry R.; Xing, Zan-Yang; Ma, Yu-Zhang; Hairston, Marc; Wang, Yong. 2019. Statistical Study of the Relationship Between Ion Upflow and Field-aligned Current in the Topside Ionosphere for Both Hemispheres During Disturbed and Quiet Times.
  • Jin, Yaqi; Moen, Jøran Idar; Spicher, Andres; Oksavik, Kjellmar; Miloch, Wojciech Jacek; Clausen, Lasse Boy Novock; Pożoga, Mariusz; Saito, Yoshifumi. 2019. Simultaneous rocket and scintillation observations of plasma irregularities associated with a reversed flow event in the cusp ionosphere. Journal of Geophysical Research (JGR): Space Physics. 7098-7111.
  • Jin, Yaqi; Oksavik, Kjellmar. 2019. Severe GPS Phase and Amplitude Scintillations at High Latitudes During the 2015 St. Patrick’s Day Storm.
  • Reistad, Jone Peter; Laundal, Karl Magnus; Østgaard, Nikolai; Ohma, Anders; Thomas, Evan G.; Haaland, Stein; Oksavik, Kjellmar; Milan, Stephen Eric. 2019. Separation and quantification of ionospheric convection sources: 2. The dipole tilt angle influence on reverse convection cells during northward IMF. Journal of Geophysical Research (JGR): Space Physics. 6182-6194.
  • Reistad, Jone Peter; Laundal, Karl Magnus; Østgaard, Nikolai; Ohma, Anders; Haaland, Stein; Oksavik, Kjellmar; Milan, Stephen Eric. 2019. Separation and quantification of ionospheric convection sources: 1. A new technique. Journal of Geophysical Research (JGR): Space Physics. 6343-6357.
  • Clemmons, J.; Rowland, Douglas E.; Pfaff, Robert F.; Hecht, J; Collier, M; Moen, Jøran Idar; Keller, J; McLain, J; Burchill, Jonathan; Klenzing, J.; Kepko, L.; Lester, Mark; Oksavik, Kjellmar; Sigernes, Fred; Zettergren, M.; Michell, R.; Paschalidis, N; Jones, S; Spicher, Andres; Di Mare, Francesca; Moore, T; Giles, Barbara; Grubbs, G; Yeoman, Timothy K; Herlingshaw, Katie. 2019. Results from a Grand Challenge Initiative-Cusp Mission: VISIONS-2.
  • Reistad, Jone Peter; Laundal, Karl Magnus; Østgaard, Nikolai; Ohma, Anders; Thomas, Evan G.; Haaland, Stein; Oksavik, Kjellmar; Milan, Stephen Eric. 2019. Quantifying the dipole tilt influence on reverse convection cells during northward IMF using spherical elementary functions.
  • Spicher, Andres; Oksavik, Kjellmar; Jin, Yaqi; Moen, Jøran Idar; Baddeley, Lisa; Clausen, Lasse Boy Novock. 2019. On the sources of Cusp Ionospheric Scintillation Irregularities.
  • Han, De-Sheng; Xu, Tong; Jin, Yaqi; Oksavik, Kjellmar; Chen, Xiangcai; Liu, Jian-Jun; Zhang, Qinghe; Baddeley, Lisa; Herlingshaw, Katie. 2019. Observational evidence for throat aurora being associated with magnetopause reconnection. Geophysical Research Letters. 7113-7120.
  • Spicher, Andres; Deshpande, Kshitija; Zettergren, Matthew D.; Oksavik, Kjellmar; Jin, Yaqi; Clausen, Lasse Boy Novock; Moen, Jøran Idar. 2019. Modeling scintillation produced by ionospheric Kelvin Helmholtz in the cusp ionosphere using GEMINI-SIGMA.
  • Han, Desheng; Xu, Tong; Jin, Yaqi; Oksavik, Kjellmar; Chen, Xiangcai; Liu, J.-J.; Zhang, Qing-He; Baddeley, Lisa; Herlingshaw, Katie. 2019. Meso-scale ionospheric flow cells, localized Joule heating, and ion upflow associated with throat aurora as observed by EISCAT.
  • Hatch, Spencer Mark; Baddeley, Lisa; Oksavik, Kjellmar; Sigernes, Fred; Moen, Jøran Idar; LaBelle, James William. 2019. EDGAR: Energy Deposition in the Geomagnetic Cusp Alfvén Resonator.
  • Pfaff, Robert F.; Rowland, Douglas E.; Freudenreich, H.; Clemmons, J.H.; Moen, Jøran Idar; Oksavik, Kjellmar; Spicher, Andres; Martin, Steven C. 2019. Dual Sounding Rocket Observations of Plasma Convection and Shear, Field-aligned Currents, and Alfven waves and Irregularities in the Cusp during IMF Bz Negative Conditions.
  • Moser, Chrystal; LaBelle, James William; Kletzing, Craig A.; Bounds, Scott; Hatch, Spencer Mark; Oksavik, Kjellmar; Bonnell, John W; Fuselier, Stephen A.; Moen, Jøran Idar; Spicher, Andres; Sigernes, Fred; Cairns, Iver. 2019. CAPER-2 and TRICE-2 Sounding Rocket Investigations: Whistler and Upper-Hybrid Waves in the Polar Cusp.
  • Follestad, Anna Kristine Fæhn; Herlingshaw, Katie; Ghadjari, Hossein; Knudsen, David J.; McWilliams, Kathryn A.; Moen, Jøran Idar; Oksavik, Kjellmar; Spicher, Andres; Wu, Jiashu. 2019. Birkeland Current Impacts on Cusp Ionospheric Irregularities.
  • Spicher, Andres; Oksavik, Kjellmar; Jin, Yaqi; Clausen, Lasse Boy Novock; Zettergren, Matthew D.; Deshpande, K. B.; Moen, Jøran Idar; Baddeley, Lisa. 2019. A reverse flow event as the onset of ionospheric scintillation irregularities in the cusp.
  • Reistad, Jone Peter; Laundal, Karl Magnus; Ohma, Anders; Østgaard, Nikolai; Thomas, Evan G.; Haaland, Stein; Oksavik, Kjellmar; Milan, Stephen Eric. 2019. A new way to identify and quantify the sources of ionospheric convection.
  • Reistad, Jone Peter; Laundal, Karl Magnus; Ohma, Anders; Østgaard, Nikolai; Thomas, Evan G.; Haaland, Stein; Oksavik, Kjellmar; Milan, Steve. 2019. A new way to identify and quantify the sources of ionospheric convection.
  • Zhang, Qing-He; Shen, Guo-Cheng; Zhang, Yongliang; Oksavik, Kjellmar; Lockwood, Michael; Xing, Zan-Yang; Ma, Yu-Zhang. 2019. A long-lasting auroral bright spot around magnetic north pole: Is it the evidence of stable magnetic reconnection?
  • Herlingshaw, Katie; Baddeley, Lisa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Bland, Emma. 2019. A Study of Automatically Detected Flow Channels in the Polar Cap Ionosphere. Journal of Geophysical Research (JGR): Space Physics. 9430-9447.
  • Zhang, Q.-H.; Shen, Guo-Cheng; Zhang, Yongliang; Oksavik, Kjellmar; Lockwood, Michael; Xing, Zan-Yang; Ma, Yu-Zhang. 2019. A Long-lasting Auroral Bright Spot Around Magnetic North Pole: Is it the Evidence of Stable Magnetic Reconnection?
  • Kwagala, Norah Kaggwa. 2018. Thermally excited 630.0 nm emissions in the polar ionosphere.
  • Ma, Yu-Zhang; Zhang, Qing-He; Xing, Zan-Yang; Heelis, Roderick A.; Oksavik, Kjellmar; Wang, Yong. 2018. The ion/electron temperature characteristics of polar cap classical and hot patches and their influence on ion upflow. Geophysical Research Letters. 8072-8080.
  • Moen, Jøran Idar; Oksavik, Kjellmar; Carlson, H. C.; Spicher, Andres; Bekkeng, T. A.; Abe, T; Saito, Y; Baddeley, Lisa; Lorentzen, Dag Arne; Yeoman, T. 2018. The investigation of cusp irregularities rocket program.
  • Moen, Jøran Idar; Oksavik, Kjellmar; Carlson, Herbert C; Spicher, Andres; Bekkeng, Tore Andre; Clausen, Lasse Boy Novock; Bekkeng, Jan Kenneth; Abe, Takumi; Saito, Yoshifumi; Baddeley, Lisa; Lorentzen, Dag Arne; Yeoman, Timothy K. 2018. The Investigation of Cusp Irregularities Rocket Program.
  • Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad; Laundal, Karl Magnus. 2018. Seasonal and solar cycle variations of thermally excited 630.0 nm emissions in the polar ionosphere. Journal of Geophysical Research (JGR): Space Physics. 7029-7039.
  • Oksavik, Kjellmar. 2018. SMILE: New opportunities for global imaging of space weather near Earth.
  • Kunduri, Bharat S.R.; Baker, Joseph B.H.; Ruohoniemi, John Michael; Sazykin, Stanislav; Oksavik, Kjellmar; Maimaiti, Maimaitirebike; Chi, Peter J.; Engebretson, Mark J. 2018. Recent developments in our knowledge of inner magnetosphere-ionosphere convection. Journal of Geophysical Research (JGR): Space Physics. 7276-7282.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Ohma, Anders; Snekvik, Kristian; Tenfjord, Paul; Grocott, Adrian; Oksavik, Kjellmar; Milan, Steve; Haaland, Stein. 2018. Observations of asymmetries in ionospheric return flow during different levels of geomagnetic activity. Journal of Geophysical Research (JGR): Space Physics. 4638-4651.
  • Katamzi-Joseph, Zama T.; Aruliah, Anasuya L.; Oksavik, Kjellmar; Habarulema, John Bosco; Kauristie, Kirsti; Kosch, Michael J. 2018. Multi-instrument observations of large-scale atmospheric gravity waves/traveling ionospheric disturbances associated with enhanced auroral activity over Svalbard. Advances in Space Research. 270-281.
  • Katamzi-Joseph, Zama T.; Aruliah, Anasuya; Oksavik, Kjellmar; Habarulema, John Bosco; Kauristie, Kirsti; Kosch, Michael. 2018. Multi-instrument observations of atmospheric gravity waves/traveling ionospheric disturbances associated with enhanced auroral activity.
  • Jin, Yaqi; Oksavik, Kjellmar. 2018. GPS Scintillations and Losses of Signal Lock at High Latitudes During the 2015 St. Patrick's Day Storm. Journal of Geophysical Research (JGR): Space Physics. 7943-7957.
  • Baddeley, Lisa; Lorentzen, Dag Arne; Partamies, Noora; Denig, William F.; Pilipenko, Vyacheslav; Oksavik, Kjellmar; Chen, Xiangcai; Zhang, Yongliang. 2018. Equatorward Propagating Auroral Arcs Driven by ULF Wave Activity: Multipoint Ground and Space Based Observations in the Dusk Sector Auroral Oval.
  • Mann, Ingrid; Kauristie, Kirsti; Bamford, Ruth; McCrea, Ian; Moen, Jøran Idar; Oksavik, Kjellmar; Yamauchi, Masanori; Johnsen, Magnar Gullikstad; Turunen, Esa. 2018. Challenges and Strategic Research Plans for Earth and Heliosphere: Research Infrastructures, Projects and Initiatives. Proceedings of the International Astronomical Union. 219-225.
  • Herlingshaw, Katie; Baddeley, Lisa; Lorentzen, Dag Arne; Bland, Emma; Oksavik, Kjellmar. 2018. Automatic detection of flow channels in the polar cap ionosphere.
  • Kunduri, Bharat S R; Baker, Joseph B.H.; Ruohoniemi, John Michael; Nishitani, Nozomu; Oksavik, Kjellmar; Erickson, Philip j.; Coster, Anthea; Shepherd, SG; Bristow, William A.; Miller, Schofield Ethan. 2018. A New Empirical Model of the Subauroral Polarization Stream. Journal of Geophysical Research (JGR): Space Physics. 7342-7357.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Tenfjord, Paul Arne Riksheim; Snekvik, Kristian; Haaland, Stein; Milan, Stephen Eric; Ohma, Anders; Grocott, Adrian; Oksavik, Kjellmar. 2017. When and where is the process of restoring symmetry important?
  • Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad. 2017. Thermally Excited 630.0 nm Emissions in the Polar Ionosphere.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Tenfjord, Paul; Snekvik, Kristian; Haaland, Stein; Milan, Stephen Eric; Ohma, Anders; Grocott, Adrian; Oksavik, Kjellmar. 2017. The influence of plasma flows bringing the magnetotail back to a more symmetric configuration.
  • Ruohoniemi, J. Michael; Baker, J. B. H.; Maimaiti, M.; Oksavik, Kjellmar; Erickson, P. J.; Scales, Wayne A.; Eltrass, A. 2017. The Occurrence of Small-scale Irregularities in the Mid-latitude Ionosphere from SuperDARN HF Radar Observations.
  • Reed, Kristian. 2017. Study of meso-scale reversed flow events in the polar ionosphere by SuperDARN radars.
  • Kunduri, Bharat S R; Baker, J. B. H.; Ruohoniemi, J. Michael; Erickson, P. J.; Coster, A. J.; Oksavik, Kjellmar. 2017. Statistical characterization of the Sub-Auroral Polarization Stream (SAPS).
  • Kim, Hyomin; Lessard, Marc R.; Jones, Sarah L.; Lynch, Kristina A.; Fernandes, Philip A.; Aruliah, Anasuya L.; Engebretson, Mark J.; Moen, Jøran Idar; Oksavik, Kjellmar; Yahnin, Alexander G.; Yeoman, Timothy K. 2017. Simultaneous observations of traveling convection vortices: Ionosphere-thermosphere coupling. Journal of Geophysical Research (JGR): Space Physics. 4943-4959.
  • Oksavik, Kjellmar; Reed, Kristian; Baddeley, Lisa; Lorentzen, Dag Arne; Herlingshaw, Katie. 2017. Reversed Flow Events in the Polar Ionosphere.
  • Habarulema, J. B.; Thobeka Katamzi, Z.; Aruliah, Anasuya L.; Oksavik, Kjellmar. 2017. Observations of gravity waves associated with enhanced auroral activity: GPS, FPI and magnetometer measurements over Svalbard.
  • Moen, Jøran Idar; Oksavik, Kjellmar; Carlson, Herbert C; Stausland, Christoffer T; Clausen, Lasse Boy Novock; Daabakk, Yvonne; Spicher, Andres; Baddeley, Lisa; Lorentzen, Dag Arne; Saito, Y; Bekkeng, Tore Andre; Bekkeng, Jan Kenneth; Abe, T. 2017. Kelvin Helmholtz and Gradient Drift instabilities in ionosphere cusp flow channels.
  • Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad. 2017. How often do thermally excited 630.0 nm emissions occur in the Polar Ionosphere? Journal of Geophysical Research (JGR): Space Physics. 698-710.
  • Brinkman, D. G.; Walterscheid, R. L.; Clemmons, J.H.; Hecht, J. H.; Lessard, Marc R.; Fritz, B; Hysell, David; Clausen, Lasse Boy Novock; Moen, Jøran Idar; Oksavik, Kjellmar; Yeoman, Timothy K. 2017. High Resolution Modeling of the Thermospheric Response to Energy Inputs during the RENU-2 Rocket Flight.
  • Prikryl, Paul; Ghoddousi-Fard, Reza; Viljanen, A; Weygand, J. M.; Kunduri, Bharat S R; Thomas, Evan G.; Ruohoniemi, J. Michael; Connors, M; Danskin, Donald W.; Jayachandran, P.T.; Jacobsen, Knut Stanley; Andalsvik, Yngvild Linnea; Durgonics, T.; Oksavik, Kjellmar; Zhang, Y; Spanswick, Emma L.; Sreeja, V.; Aquino, M. 2017. Geomagnetic storms of March 17, 2013 and 2015: GPS phase scintillation and auroral electrojet currents.
  • Jin, Yaqi; Moen, Jøran Idar; Oksavik, Kjellmar; Spicher, Andres; Clausen, Lasse Boy Novock; Miloch, Wojciech Jacek. 2017. GPS scintillations associated with cusp dynamics and polar cap patches. Journal of Space Weather and Space Climate. 12 pages.
  • Prikryl, Paul; Ghoddousi-Fard, Reza; Viljanen, A; Weygand, J. M.; Kunduri, Bharat S R; Thomas, Evan G.; Ruohoniemi, J. Michael; Connors, M; Danskin, Donald W.; Jayachandran, P.T.; Jacobsen, Knut Stanley; Andalsvik, Yngvild Linnea; Durgonics, T.; Oksavik, Kjellmar; Zhang, Y; Spanswick, Emma L.; Sreeja, V.; Aquino, M.; Cilliers, P; Li, G; Ning, B.; Mitchell, C. N.; Spogli, L; Terkildsen, M.; Weatherwax, A.T. 2017. GPS phase scintillation and auroral electrojet currents during geomagnetic storms of March 17, 2013 and 2015.
  • Kenward, D.; Lessard, M.; Lynch, Kristina A.; Hysell, David; Hampton, Donald L.; Michell, R.; Samara, M.; Varney, R. H.; Oksavik, Kjellmar; Clausen, Lasse Boy Novock; Hecht, J. H.; Clemmons, J.H.; Fritz, B. 2017. Examination of Cross-Scale Coupling During Auroral Events using RENU2 and ISINGLASS Sounding Rocket Data.
  • Baddeley, Lisa; Lorentzen, Dag Arne; Partamies, Noora; Denig, M.; Pilipenko, Viacheslav A.; Oksavik, Kjellmar; Chen, Xiangcai; Zhang, Yongliang. 2017. Equatorward propagating auroral arcs driven by ULF wave activity: Multipoint ground- and space-based observations in the dusk sector auroral oval. Journal of Geophysical Research (JGR): Space Physics. 5591-5605.
  • Summers, Danny; Shi, Run; Engebretson, Mark J.; Oksavik, Kjellmar; Manweiler, Jerry W.; Mitchell, Donald G. 2017. Energetic proton spectra measured by the Van Allen probes. Journal of Geophysical Research (JGR): Space Physics. 10,129-10,144.
  • Chen, Xiangcai; Han, Desheng; Lorentzen, Dag Arne; Oksavik, Kjellmar; Moen, Jøran Idar; Baddeley, Lisa. 2017. Dynamic properties of throat aurora revealed by simultaneous ground and satellite observations. Journal of Geophysical Research (JGR): Space Physics. 3469-3486.
  • Prikryl, Paul; Ghoddousi-Fard, Reza; Viljanen, Ari; Weygand, James M.; Kunduri, Bharat S R; Thomas, Evan G.; Ruohoniemi, J. Michael; Connors, Martin; Danskin, Donald W.; Jayachandran, P.T.; Jacobsen, Knut Stanley; Andalsvik, Yngvild Linnea; Durgonics, Tibor; Oksavik, Kjellmar; Zhang, Yongliang; Spanswick, Emma L.; Sreeja, V.; Aquino, M. 2017. Comparison of geomagnetic March 2013 and 2015 storms: GPS phase scintillation and auroral electrojet currents.
  • Oksavik, Kjellmar; Reed, Kristian; Ruohoniemi, J. Michael; Baker, J. B. H.; Kunduri, Bharat S R; Lorentzen, Dag Arne; Baddeley, Lisa; Herlingshaw, Katie. 2017. Channels of Reversed Flow in the Polar Ionosphere.
  • Clemmons, J.H.; Hecht, J. H.; Brinkman, D. G.; Lessard, Marc; Hysell, David; Lynch, Kristina A.; Harrington, M. I.; Oksavik, Kjellmar; Moen, Jøran Idar; Sigernes, Fred; Yeoman, Timothy K; Fritz, B. 2016. Structure of the thermosphere during energy input through the magnetospheric cusp: Measurements from the RENU2 ionization gauge.
  • Jin, Yaqi; Moen, Jøran Idar; Miloch, Wojciech Jacek; Clausen, Lasse Boy Novock; Oksavik, Kjellmar. 2016. Statistical study of the GNSS phase scintillation associated with two types of auroral blobs. Journal of Geophysical Research (JGR): Space Physics. 4679-4697.
  • Chen, Xiangcai; Lorentzen, Dag Arne; Moen, Jøran Idar; Oksavik, Kjellmar; Baddeley, Lisa. 2016. Simultaneous Ground-based Optical And HF Radar Observations Of The Ionospheric Footprint Of The Open/closed Field Line Boundary.
  • van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne; Paxton, Larry J.; Clausen, Lasse Boy Novock. 2016. Scintillation and irregularities from the nightside part of a Sun-aligned polar cap arc. Journal of Geophysical Research (JGR): Space Physics. 5723-5736.
  • Ellingsen, Pål Gunnar; Oksavik, Kjellmar; Strømme, Anja. 2016. Raising young peoples’ eyes to the stars.
  • Oksavik, Kjellmar; Reed, Kristian; Lorentzen, Dag Arne; Baddeley, Lisa. 2016. Plasma Flow Channel Events in the Polar Ionosphere.
  • Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad. 2016. On the contribution of thermal excitation to the total 630.0 nm emissions in the northern cusp ionosphere. Journal of Geophysical Research (JGR): Space Physics. 1234-1245.
  • Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad. 2016. Occurrence and Characteristics of Thermally Excited 630.0 nm Emissions in the Polar Ionosphere.
  • van der Meeren, Christer. 2016. Mesoscale ionospheric plasma irregularities and scintillation over Svalbard.
  • Reistad, Jone Peter. 2016. Mechanisms responsible for asymmetric aurora between the conjugate hemispheres.
  • Prikryl, Paul; Ghoddousi-Fard, Reza; Connors, M; Weygand, J. M.; Jayachandran, P.T.; Danskin, D. W.; Ruohoniemi, J. M.; Thomas, Evan G.; Durgonics, T.; Oksavik, Kjellmar; Cilliers, P; Mitchell, C. N.; Spogli, Luca; Li, G; Ning, B.; Sreeja, V.; Aquino, M.; Terkildsen, M.; Jiao, Y.; Morton, Y. T.; Zhang, Y; Weatherwax, A.T.; Alfonsi, Lucilla; De Franceschi, G; Romano, V. 2016. GPS phase scintillation during the geomagnetic storms of March 17, 2013 and 2015: Interhemispheric comparison and the relation to auroral electrojet currents.
  • Prikryl, Paul; Ghoddousi-Fard, Reza; Connors, M; Weygand, J. M.; Danskin, D. W.; Jayachandran, P.T.; Jacobsen, Knut Stanley; Andalsvik, Yngvild Linnea; Thomas, Evan G.; Ruohoniemi, J. M.; Durgonics, T.; Oksavik, Kjellmar; Zhang, Y; Aquino, M.; Sreeja, V. 2016. GPS phase scintillation during the geomagnetic storm of March 17, 2015: The relation to auroral electrojet currents.
  • Prikryl, Paul; Ghoddousi-Fard, Reza; Connors, M; Weygand, J. M.; Danskin, D. W.; Jayachandran, P.T.; Jacobsen, Knut Stanley; Andalsvik, Yngvild Linnea; Thomas, Evan G.; Ruohoniemi, J. M.; Durgonics, T.; Oksavik, Kjellmar; Zhang, Y.; Aquino, M.; Sreeja, V. 2016. GPS phase scintillation during the geomagnetic storm of March 17, 2015: The relation to auroral electrojet currents.
  • Prikryl, Paul; Ghoddousi-Fard, Reza; Durgonics, T.; Oksavik, Kjellmar; Zhang, Y.; Aquino, M.; Sreeja, V.; Connors, M; Weygand, J. M.; Danskin, D. W.; Jayachandran, P.T.; Jacobsen, Knut Stanley; Andalsvik, Yngvild Linnea; Thomas, Evan G.; Ruohoniemi, J. M. 2016. GPS phase scintillation during the geomagnetic storm of March 17, 2015: The relation to auroral electrojet currents.
  • Prikryl, Paul; Ghoddousi-Fard, Reza; Weygand, James M.; Viljanen, Ari; Connors, Martin G.; Danskin, Donald W.; Jayachandran, Periyadan T.; Jacobsen, Knut Stanley; Andalsvik, Yngvild Linnea; Thomas, E.G.; Ruohoniemi, John Michael; Durgonics, Tibor; Oksavik, Kjellmar; Zhang, Yongliang; Spanswick, Emma L.; Aquino, Marcio H.O.; Veettil, Sreeja Vaddake. 2016. GPS phase scintillation at high latitudes during the geomagnetic storm of 17-18 March 2015. Journal of Geophysical Research (JGR): Space Physics. 10,448-10,465.
  • Chen, Xiangcai; Lorentzen, Dag Arne; Moen, Jøran Idar; Oksavik, Kjellmar; Baddeley, Lisa; Lester, Mark. 2016. F-region ionosphere effects on the mapping accuracy of SuperDARN HF radar echoes.
  • Chen, Xiangcai; Lorentzen, Dag Arne; Moen, Jøran Idar; Oksavik, Kjellmar; Baddeley, Lisa; Lester, Mark. 2016. F region ionosphere effects on the mapping accuracy of SuperDARN HF radar echoes. Radio Science. 490-506.
  • Reistad, Jone Peter; Østgaard, Nikolai; Tenfjord, Paul Arne Riksheim; Laundal, Karl Magnus; Snekvik, Kristian; Haaland, Stein; Milan, Steve E.; Oksavik, Kjellmar; Frey, Harald U.; Grocott, Adrian. 2016. Dynamic effects of restoring footpoint symmetry on closed magnetic field-lines: Asymmetric Birkeland currents.
  • Reistad, Jone Peter; Østgaard, Nikolai; Tenfjord, Paul; Laundal, Karl Magnus; Snekvik, Kristian; Haaland, Stein; Milan, Steve; Oksavik, Kjellmar; Frey, Harald U.; Grocott, Adrian. 2016. Dynamic effects of restoring footpoint symmetry on closed magnetic field lines. Journal of Geophysical Research (JGR): Space Physics. 3963-3977.
  • Kenward, D.; Lessard, Marc; Lynch, Kristina A.; Hysell, David; Hecht, J. H.; Clemmons, J.H.; Crowley, G.; Cohen, Ian J.; Sigernes, Fred; Oksavik, Kjellmar; Yeoman, Timothy K; Lee, S.H.; Burch, J. L. 2016. Cusp Electron Populations During a Neutral Upwelling Event: Measurements from RENU2 and MMS Conjunction.
  • Sadler, B.; Lessard, Marc; Oksavik, Kjellmar; Lühr, Hermann; Kervalishvili, G.; Otto, A. 2016. A Cusp Density Enhancement Study using CHAMP/EISCAT conjunctions.
  • Engebretson, Mark J.; Posch, Jennifer L.; Wygant, John R.; Kletzing, Craig A.; Lessard, Marc R.; Huang, Chialin; Spence, Harlan E.; Smith, Charles W.; Singer, Howard J.; Omura, Yoshiharu; Horne, Richard Bertram; Reeves, Geoffrey D.; Baker, Daniel N.; Gkioulidou, Matina; Oksavik, Kjellmar; Mann, Ian R.; Raita, Tero; Shiokawa, Kazuo. 2015. Van Allen probes, NOAA, GOES, and ground observations of an intense EMIC wave event extending over 12 h in magnetic local time. Journal of Geophysical Research (JGR): Space Physics. 5465-5488.
  • Engebretson, M. J.; Posch, J. L.; Wygant, J. R.; Kletzing, Craig A.; Lessard, M. R.; Huang, C.-L.; Spence, H. E.; Boyd, A. J.; Smith, C. W.; Baker, D. N.; Omura, Y.; Horne, R; Reeves, G. D.; Gkioulidou, M; Oksavik, Kjellmar; Mann, Ian R.; Raita, Tero; Shiokawa, K. 2015. Van Allen Probes, NOAA, and Ground Observations of an Intense Pc 1 Wave Event Extending 12 Hours in MLT and its Resulting Depletion of the Outer Radiation Belt.
  • Engebretson, M. J.; Posch, J. L.; Wygant, J. R.; Kletzing, Craig A.; Lessard, Marc; Huang, C.-L.; Spence, H. E.; Boyd, A. J.; Baker, D. N.; Smith, C. W.; Singer, H. J.; Horne, Richard B.; Reeves, G. D.; Gkioulidou, M; Oksavik, Kjellmar; Mann, Ian R.; Raita, Tero; Shiokawa, K. 2015. Van Allen Probes, NOAA, and Ground Observations of an Intense Pc 1 Wave Event Extending 12 Hours in MLT and its Resulting Depletion of the Outer Radiation Belt.
  • Sigernes, Fred; Ellingsen, Pål Gunnar; Holmen, Silje Eriksen; Brekke, Pål; Danielsen, A.; Olsen, B.; Syrjäsuo, Mikko; Chen, Xiangcai; Dyrland, Margit Elisabet; Partamies, Noora; Baddeley, Lisa; Lorentzen, Dag Arne; Krogtoft, M.; Dragland, T.; Mortensson, H.; Smistad, L.; Oksavik, Kjellmar; Heinselman, C.; Habbal, S. 2015. The total solar eclipse on Svalbard 2015.
  • McCrea, Ian W.; Aikio, Anita; Alfonsi, Lucilla; Belova, Evgenia; Buchert, Stephan C.; Clilverd, Mark; Engler, Norbert; Gustavsson, Björn Johan; Heinselman, C.; Kero, Johan; Kosch, Mike; Lamy, Herve; Leyser, Thomas; Ogawa, Yasunobu; Oksavik, Kjellmar; Pellinen-Wannberg, Asta; Pitout, Frederic; Rapp, Markus; Stanislawska, Iwona; Vierinen, Juha. 2015. The science case for the EISCAT_3D radar.
  • Brekke, Pål; Oksavik, Kjellmar; Ellingsen, Pål Gunnar; Sand, Gunnar; Mathisen, Georg. 2015. Solformørkelsen var enda bedre enn forventet. Forskerjubel på Svalbard.
  • Brekke, Pål; Oksavik, Kjellmar. 2015. Solformørkelsen på Svalbard.
  • Chen, Xiangcai; Lorentzen, Dag Arne; Moen, Jøran Idar; Oksavik, Kjellmar; Baddeley, Lisa. 2015. Simultaneous ground-based optical and HF radar observations of the ionospheric footprint of the open/closed field line boundary along the geomagnetic meridian. Journal of Geophysical Research (JGR): Space Physics. 9859-9874.
  • van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne; Rietveld, Michael T; Clausen, Lasse Boy Novock. 2015. Severe and localized GNSS scintillation at the poleward edge of the nightside auroral oval during intense substorm aurora. Journal of Geophysical Research (JGR): Space Physics. 10607-10621.
  • Oksavik, Kjellmar; Kjellevold, K. 2015. Se nordlyset over Rundemanen.
  • Oksavik, Kjellmar; van der Meeren, Christer; Lorentzen, Dag Arne; Baddeley, Lisa. 2015. Scintillation from poleward moving auroral forms in the cusp ionosphere.
  • Oksavik, Kjellmar; van der Meeren, Christer; Lorentzen, Dag Arne; Baddeley, Lisa; Moen, Jøran Idar. 2015. Scintillation and loss of signal lock from poleward moving auroral forms in the cusp ionosphere. Journal of Geophysical Research (JGR): Space Physics. 9161-9175.
  • Sigernes, Fred; Ellingsen, Pål Gunnar; Holmen, Silje Eriksen; Brekke, Pål; Danielsen, A.; Olsen, B.; Syrjäsuo, Mikko; Chen, Xiangcai; Dyrland, Margit Elisabet; Partamies, Noora; Baddeley, Lisa; Lorentzen, Dag Arne; Krogtoft, M.; Dragland, T.; Mortensson, H.; Smistad, L.; Oksavik, Kjellmar; Habbal, S. 2015. Preliminary results from the total solar eclipse campaign on Svalbard 2015.
  • Tyssøy, Hilde Nesse; Stadsnes, Johan; Søraas, Finn; Oksavik, Kjellmar. 2015. Particle Detector - Bounce Loss Cone Fluxes .
  • Reistad, Jone Peter; Østgaard, Nikolai; Tenfjord, Paul; Laundal, Karl Magnus; Snekvik, Kristian; Haaland, Stein; Milan, Steve E.; Oksavik, Kjellmar; Frey, Harald U.; Grocott, Adrian. 2015. On the importance of magnetotail untwisting.
  • Oksavik, Kjellmar; Sigernes, Fred; Lorentzen, Dag Arne; Baddeley, Lisa; Partamies, Noora. 2015. Observations of the dayside cusp aurora using ground-based optics and radar.
  • van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne. 2015. Observations of simultaneous multi-constellation GNSS scintillation in nightside aurora over Svalbard.
  • Cohen, Ian J.; Lessard, Marc R.; Varney, Roger H.; Oksavik, Kjellmar; Zettergren, Matthew D.; Lynch, Kristina A. 2015. Ion upflow dependence on ionospheric density and solar photoionization. Journal of Geophysical Research (JGR): Space Physics. 10039-10052.
  • Lessard, Marc; Cohen, I. J.; Varney, R. H.; Oksavik, Kjellmar; Zettergren, Matthew D.; Lynch, K. A. 2015. Ion upflow dependence on ionospheric density and solar photoionozation.
  • Moen, Jøran Idar; Clausen, Lasse Boy Novock; Spicher, Andres; Bekkeng, T. A.; Saito, Y.; Oksavik, Kjellmar; Baddeley, Lisa; Lorentzen, Dag Arne; Sigernes, F. 2015. Investigation of F-region auroral blobs by the ICI-4 sounding rocket.
  • Sandanger, Marit Irene J.; Ødegaard, Linn-Kristine Glesnes; Tyssøy, Hilde Nesse; Stadsnes, Johan; Søraas, Finn; Oksavik, Kjellmar; Aarsnes, Kjell. 2015. In-flight calibration of NOAA POES proton detectors - Derivation of the MEPED correction factors. Journal of Geophysical Research (JGR): Space Physics. 9578-9593.
  • Spogli, L.; Alfonsi, L.; Di Mauro, D; Cesaroni, C; Cilliers, P; Correia, E; Oksavik, Kjellmar; Prikryl, Paul; Romano, Vineenzo; De Franceschi, G. 2015. GNSS scintillation case studies at high latitudes following solar events of January 2014.
  • Moen, Jøran Idar; Carlson, Herbert C; Oksavik, Kjellmar; Skjæveland, Åsmund; Daabakk, Yvonne. 2015. FTE driven dynamics of the F-region cusp ionosphere.
  • Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Carlson, Herbert C. 2015. Dayside 630.0 nm emissions due to thermally excited O(1D) in the cusp region ionosphere over Longyearbyen, Svalbard.
  • Kwagala, Norah Kaggwa. 2015. Dayside 630.0 nm emissions due to thermally excited O(1D) in the cusp region ionosphere over Longyearbyen, Svalbard.
  • Baddeley, Lisa; Lorentzen, Dag Arne; Oksavik, Kjellmar; Denig, William F.; Chen, Xiangcai. 2015. Co-ordinated EISCAT and optical measurements of multiple equatorward propagating auroral arcs.
  • Reistad, Jone Peter; Østgaard, Nikolai; Tenfjord, Paul; Snekvik, Kristian; Laundal, Karl Magnus; Milan, Steve; Oksavik, Kjellmar. 2015. Are there auroral signatures related to asymmetric generation of field-aligned currents in the tail due to an IMF By induced twist?
  • Moen, Jøran Idar; Oksavik, Kjellmar; Lynnebakken, Hilde. 2015. 11 lange dagers ferd mot nordlyset.
  • Oksavik, Kjellmar. 2014. What can multi-constellation GNSS measurements do for EISCAT_3D?
  • Engebretson, M. J.; Posch, J. L.; Wygant, J. R.; Kletzing, Craig A.; Lessard, Marc R.; Horne, Richard B.; Reeves, G. D.; Ukhorskiy, A. Y.; Fennell, Joe F; Oksavik, Kjellmar; Raita, T. 2014. Van Allen probes, NOAA, and ground observations of an intense Pc 1 wave event extending 12 hours in MLT.
  • Engebretson, M. J.; Posch, J. L.; Wygant, J. R.; Kletzing, Craig A.; Lessard, M.; Horne, Richard B.; Reeves, G. D.; Gkioulidou, M; Fennell, J; Oksavik, Kjellmar; Raita, T. 2014. Van Allen Probes, NOAA, and Ground Observations of an Intense Pc 1 Wave Event Extending 12 Hours in MLT.
  • Lorentzen, Dag Arne; Sigernes, Fred; Baddeley, Lisa; Dyrland, Margit Elisabet; Moen, Jøran Idar; Brekke, Pål; Oksavik, Kjellmar; Chen, Xiangcai; Holmen, Silje Eriksen. 2014. The Kjell Henriksen Observatory – a window into space.
  • Oksavik, Kjellmar; van der Meeren, Christer. 2014. The GALILEO navigation system and space weather effects in the polar cap.
  • Torheim, Ørjan; Oksavik, Kjellmar. 2014. Solstormer ga himmelmagi.
  • Oksavik, Kjellmar. 2014. Plasma irregularities in the polar F-region of the ionosphere.
  • Oksavik, Kjellmar. 2014. Plasma convection over the polar ionosphere.
  • Moen, Jøran Idar; Daabakk, Yvonne; Oksavik, Kjellmar; Clausen, Lasse Boy Novock; Bekkeng, Tore Andre; Abe, T.; Saito, Y; Baddeley, Lisa; Lorentzen, Dag Arne; Sigernes, Fred; Yeoman, T. K. 2014. Plasma Instability Growth Rates in the F-Region Cusp Ionosphere.
  • Fear, R. C.; Milan, Steve; Oksavik, Kjellmar; Palmroth, Minna. 2014. Observational tests of flux transfer event structure.
  • Sjøstrøm, Ove; Oksavik, Kjellmar. 2014. Ny himmelmagi på gang.
  • Oksavik, Kjellmar; van der Meeren, Christer; Lorentzen, Dag Arne; Moen, Jøran Idar; Lester, Mark. 2014. Ionospheric scintillations in the dayside polar ionosphere.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Haaland, Stein; Tenfjord, Paul; Snekvik, Kristian; Oksavik, Kjellmar; Milan, Steve. 2014. Intensity asymmetries in the dusk sector of the poleward auroral oval due to IMF Bx. Journal of Geophysical Research (JGR): Space Physics. 9497-9507.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Snekvik, Kristian; Tenfjord, Paul; Oksavik, Kjellmar. 2014. Hemispheric differences in solar wind – magnetosphere interactions.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Haaland, Stein; Tenfjord, Paul; Snekvik, Kristian; Oksavik, Kjellmar; Milan, Steve. 2014. Hemispheric asymmetries in the global aurora and IMF Bx.
  • van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne; Moen, Jøran Idar; Romano, Vincenzo. 2014. GPS scintillation and irregularities at the front of an ionization tongue in the nightside polar ionosphere. Journal of Geophysical Research (JGR): Space Physics. 8624-8636.
  • van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne; Moen, Jøran Idar; Romano, Vincenzo. 2014. GPS scintillation and irregularities at the front of a tongue of ionization in the nightside polar ionosphere over Svalbard.
  • van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne; Moen, Jøran Idar; Romano, Vincenzo. 2014. GPS phase scintillation without diffractive irregularities: Case study at the front of an ionization tongue in the nightside polar ionosphere.
  • van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne; Moen, Jøran Idar; Romano, Vincenzo. 2014. GPS phase scintillation and irregularities at the front of a tongue of ionization in the nightside polar cap.
  • van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne; Moen, Jøran Idar; Romano, Vincenzo. 2014. GNSS scintillations in the nightside polar ionosphere over Svalbard.
  • Nishimura, Yukitoshi; Lyons, Larry R.; Zou, Ying; Oksavik, Kjellmar; Moen, Jøran Idar; Clausen, Lasse Boy Novock; Donovan, Eric F.; Angelopoulos, Vassillis; Shiokawa, Kazuo; Ruohoniemi, J. Michael; Nishitani, Nozomu; McWilliams, Kathryn A.; Lester, Mark. 2014. Day-night coupling by a localized flow channel visualized by polar cap patch propagation. Geophysical Research Letters. 3701-3709.
  • Nishimura, T.; Lyons, Larry R.; Zou, Y; Wang, B; Oksavik, Kjellmar; Moen, Jøran Idar; Clausen, Lasse Boy Novock; Donovan, E.; Angelopoulos, Vassillis; Shiokawa, K.; Ruohoniemi, J. Michael; Nishitani, Nozomu; McWilliams, Kathryn A.; Lester, Mark. 2014. Day-night coupling by a localized flow channel visualized by polar cap patch propagation.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Oksavik, Kjellmar. 2014. Conjugate and non-conjugate aspects of the aurora.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Haaland, Stein; Tenfjord, Paul; Oksavik, Kjellmar. 2014. Comparison of solar wind driving of the aurora in the two hemispheres due to the solar wind dynamo.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Haaland, S.; Tenfjord, Paul; Oksavik, Kjellmar. 2014. Comparison of solar wind driving of the aurora in the two hemispheres due to solar wind dynamo.
  • Ghoddousi-Fard, Reza; Prikryl, Paul; Oksavik, Kjellmar; van der Meeren, Christer; Lahaye, François; Danskin, Donald. 2014. Characterization of high latitude GPS sensed ionospheric irregularities: Case studies.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Haaland, Stein; Tenfjord, Paul; Snekvik, Kristian; Oksavik, Kjellmar; Milan, Steve. 2014. Asymmetric Solar Wind dynamo efficiency and IMF Bx.
  • van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne; Moen, Jøran Idar; Romano, Vincenzo. 2014. Arrival of a tongue of ionization in the nightside polar ionosphere and effects on GPS scintillation.
  • Sandanger, Marit Irene J.; Ødegaard, Linn Kristine G.; Tyssøy, Hilde Nesse; Stadsnes, Johan; Søraas, Finn; Oksavik, Kjellmar. 2014. A new method of recalibrating NOAA MEPED proton measurements.
  • Sandanger, Marit Irene J.; Ødegaard, Linn Kristine G.; Tyssøy, Hilde Nesse; Stadsnes, Johan; Søraas, Finn; Oksavik, Kjellmar. 2014. A New Method of recalibrating NOAA POES MEPED proton measurements.
  • van der Meeren, Christer; Oksavik, Kjellmar. 2013. Tongue of ionization in the nightside polar ionosphere and effects on GPS scintillation.
  • Carlson, Herbert C; Oksavik, Kjellmar; Moen, Jøran Idar. 2013. Thermally excited 630.0nm O(D-1) emission in the cusp: A frequent high-altitude transient signature. Journal of Geophysical Research (JGR): Space Physics. 5842-5852.
  • Oksavik, Kjellmar; Van Der Meeren, Christer; Moen, Jøran Idar; Baddeley, Lisa; Lorentzen, Dag Arne; Lester, Mark. 2013. Space weather effects on GNSS navigation systems in the polar cap.
  • Moen, Jøran Idar; Oksavik, Kjellmar; Alfonsi, L.; Dåbakk, Yvonne Rinne; Romano, V.; Spogli, L. 2013. Space weather challenges of the polar cap ionosphere.
  • Moen, Jøran Idar; Oksavik, Kjellmar; Alfonsi, Lucilla; Dåbakk, Yvonne Rinne; Romano, Vineenzo; Spogli, Luca. 2013. Space weather challenges of the polar cap ionosphere. Journal of Space Weather and Space Climate. 13 pages.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Oksavik, Kjellmar. 2013. Simultaneous global imaging as a tracer of true conjugate regions.
  • Oksavik, Kjellmar; Karlsen, Einar. 2013. Romvær: Nordlys og plasmaskyer truer GPS.
  • Ødegaard, Linn-Kristine Glesnes; Oksavik, Kjellmar; Søraas, Finn; Tyssøy, Hilde Nesse. 2013. Recalibration of the NOAA/POES MEPED instrument using a statistical approach.
  • Ødegaard, Linn Kristine G. 2013. Recalibration of the MEPED Proton Detectors Onboard NOAA POES Satellites.
  • Ødegaard, Linn Kristine G.; Oksavik, Kjellmar. 2013. Recalibration of the MEPED Proton Detectors Onboard NOAA POES Satellites.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Oksavik, Kjellmar. 2013. On the non-conjugacy of nightside aurora and their generator mechanisms. Journal of Geophysical Research (JGR): Space Physics. 3394-3406.
  • Oksavik, Kjellmar; van der Meeren, Christer; Moen, Jøran Idar; Lester, Mark. 2013. On Transient Phenomena in the Cusp Ionosphere.
  • Laundal, Karl Magnus; Østgaard, Nikolai; Reistad, Jone Peter; Oksavik, Kjellmar. 2013. Non-Conjugate Features in the Auroral Ovals in the two Hemispheres.
  • Engebretson, Mark J.; Yeoman, Timothy Kenneth; Oksavik, Kjellmar; Søraas, Finn; Sigernes, Fred; Moen, Jøran Idar; Johnsen, Magnar Gullikstad; Pilipenko, Viacheslav A.; Posch, Jennifer L.; Lessard, Marc R.; Lavraud, Benoit; Hartinger, Michael D.; Clausen, Lasse Boy Novock; Raita, Tero; Stolle, Claudia. 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.
  • Oksavik, Kjellmar; Van Der Meeren, Christer; Moen, Jøran Idar; Lester, M. 2013. Ionospheric irregularities and effects on GNSS navigation systems in the polar cap.
  • Reistad, Jone Peter; Haaland, Stein; Østgaard, Nikolai; Laundal, Karl Magnus; Tenfjord, Paul; Oksavik, Kjellmar. 2013. Investigation of the role of IMF Bx on magnetopause characteristic past the terminator.
  • Reistad, Jone Peter; Haaland, Stein; Østgaard, Nikolai; Laundal, Karl Magnus; Tenfjord, Paul Arne Riksheim; Oksavik, Kjellmar. 2013. Investigation of a possible IMF Bx influence on magnetopause characteristics.
  • Reistad, Jone Peter; Haaland, Stein; Østgaard, Nikolai; Laundal, Karl Magnus; Tenfjord, Paul; Oksavik, Kjellmar. 2013. Investigation of a possible IMF Bx influence on magnetopause characteristic.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Tenfjord, Paul; Oksavik, Kjellmar; Haaland, Stein. 2013. Intensity asymmetries between the northern and southern auroral ovals associated with the x-component of the Interplanetary Magnetic Field.
  • Moen, Jøran Idar; Dåbakk, Yvonne Rinne; Bekkeng, Jan Kenneth; Bekkeng, Tore Andre; Pedersen, A.; Abe, T.; Saito, Y.; Oksavik, Kjellmar; Baddeley, Lisa; Lorentzen, Dag Arne; Sigernes, Fred. 2013. INVESTIGATION OF A CUSP FLOW CHANNEL BY THE ICI-3 SOUNDING ROCKET.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Oksavik, Kjellmar. 2013. How IMF Bx affects the two polar hemispheres differently.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Oksavik, Kjellmar. 2013. How IMF Bx affects the two hemispheres differently.
  • van der Meeren, Christer; Oksavik, Kjellmar. 2013. Effects on GPS scintillation from a tongue of ionization in the nightside polar ionosphere.
  • Carlson, H. C.; Moen, Jøran Idar; Oksavik, Kjellmar; Aruliah, A.; Skjæveland, Åsmund. 2013. Doubling of Ion Up-flow for Ion Outflow Calculations.
  • Sandanger, Marit Irene J.; Tyssøy, Hilde Nesse; Stadsnes, Johan; Ødegaard, Linn Kristine G.; Søraas, Finn; Oksavik, Kjellmar. 2013. Determination of NOAA MEPED correction factors - evaluation of different methods.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Haaland, Stein; Oksavik, Kjellmar. 2013. Auroral intensity asymmetries associated with the x-component of the interplanetary magnetic field in the two polar hemispheres.
  • Van Der Meeren, Christer; Oksavik, Kjellmar; Moen, Jøran Idar; Romano, Vincenzo. 2013. A multi-instrument study of high-latitude ionospheric irregularities and their effects on GPS ionospheric scintillation.
  • Van Der Meeren, Christer. 2013. A multi-instrument study of GPS scintillation in the nightside polar cap over Svalbard.
  • van der Meeren, Christer; Oksavik, Kjellmar; Moen, Jøran Idar; Romano, Vincenzo. 2013. A multi-instrument case study of high-latitude ionospheric GNSS scintillation due to drifting plasma irregularities.
  • Ribeiro, A. J.; Ruohoniemi, J. M.; Ponomarenko, P. V.; Clausen, L.B.N.; Baker, J. B. H.; Greenwald, R. A.; Oksavik, Kjellmar; de Larquier, S. 2013. A comparison of SuperDARN ACF fitting methods. Radio Science. 274-282.
  • Slettebø, Olav; Oksavik, Kjellmar. 2012. Vil varsle lyn og nordlys.
  • Young, Matthew A.; Lessard, Marc; Engebretson, Mark; Woodroffe, Jesse R.; Oksavik, Kjellmar. 2012. Spectral enhancements associated with Pi1B events observed at high latitude. Journal of Geophysical Research (JGR): Space Physics. 11 pages.
  • Oksavik, Kjellmar; Moen, Jøran Idar; Carlson, Herbert C. 2012. Spatial fine-structure in the F-region polar ionosphere.
  • Moen, Jøran Idar; Oksavik, Kjellmar; Alfonsi, L.; Dåbakk, Yvonne Rinne; Romano, V.; Spogli, L. 2012. Space weather challenges of the polar cap ionosphere.
  • Moen, Jøran Idar; Oksavik, Kjellmar. 2012. Space weather challenges of the polar cap ionosphere.
  • Oksavik, Kjellmar; Moen, Jøran Idar; van der Meeren, Christer; Lester, Mark. 2012. On plasma instabilities in the polar cap ionosphere.
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Oksavik, Kjellmar. 2012. Non-conjugate aurora and inter hemispheric currents.
  • Engebretson, Mark; Posch, J. L.; Lessard, Marc R.; Pilipenko, V. A.; Oksavik, Kjellmar; Søraas, Finn; Sigernes, Fred; Yeoman, T. K.; Wright, D. M.; Lavraud, B.; Clausen, L. B. N. 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.
  • Bjoland, Lindis Merete; Østgaard, Nikolai; Oksavik, Kjellmar; Atakan, Kuvvet. 2012. Ionospheric Signatures Associated with the 21 February 2008 Svalbard Earthquake.
  • Moen, Jøran Idar; Dåbakk, Yvonne Rinne; Oksavik, Kjellmar; Bekkeng, Tore Andre; Bekkeng, Jan Kenneth; Lorentzen, Dag Arne; Baddeley, Lisa; Abe, T.; Saito, Y.; Ogawa, Yasunobu; Robert, P; Yeoman, T. 2012. Investigation of reversed flow channel events by the ICI-3 sounding rocket.
  • Oksavik, Kjellmar; Moen, Jøran Idar; Lester, M; Bekkeng, Tore Andre; Bekkeng, Jan Kenneth. 2012. In situ measurements of plasma irregularity growth in the cusp ionosphere. Journal of Geophysical Research (JGR): Space Physics. 9 pages.
  • Reistad, Jone Peter; Østgaard, Nikolai; Oksavik, Kjellmar. 2012. How the solar wind dynamo affects the two polar regions differently.
  • Moen, Jøran Idar; Oksavik, Kjellmar; Abe, Takumi; Lester, Mark; Saito, Yoshifumi; Bekkeng, Tore Andre; Jacobsen, Knut Stanley. 2012. First in-situ measurements of HF radar echoing targets. Geophysical Research Letters. 5 pages.
  • Tyssøy, Hilde Nesse; Stadsnes, Johan; Søraas, Finn; Oksavik, Kjellmar; Aarsnes, Kjell. 2012. Energetic particle precipitation and ionization effects in the mesosphere during the solar energetic particle events 23 - 30 January 2012.
  • Lund, E. J.; Lessard, M. R.; Sigernes, Fred; Lorentzen, Dag Arne; Oksavik, Kjellmar; Kintner, P. M.; Lynch, K. A.; Huang, D.H.; Zhang, B. C.; Yang, H.G.; Ogawa, Y. 2012. Electron temperature in the cusp as measured with the SCIFER-2 sounding rocket. Journal of Geophysical Research (JGR): Space Physics. 7 pages.
  • Borisova, T. D.; Blagoveshchenskaya, N. F.; Kalishin, A. S.; Oksavik, Kjellmar; Baddeley, Lisa; Yeoman, T. K. 2012. Effects of modification of the polar ionosphere with high-power short-wave extraordinary-mode HF waves produced by the spear heating facility. Radiophysics and Quantum Electronics. 126-141.
  • Fear, Robert C.; Milan, Steve E.; Oksavik, Kjellmar. 2012. Determining the axial direction of high-shear flux transfer events: Implications for models of FTE structure. Journal of Geophysical Research (JGR): Space Physics. 19 pages.
  • Oksavik, Kjellmar. 2012. Det nøyaktige polpunktet. Adresseavisen. 20-20.
  • Moen, Jøran Idar; Oksavik, Kjellmar; Baddeley, Lisa; Ogawa, Yasunobu; Bekkeng, Tore Andre; Saito, Y; Lorentzen, Dag Arne. 2012. Decameter plasma irregularities in F-region polar cap plasma.
  • Pedersen, Arne; Lybekk, Bjørn; Moen, Jøran Idar; Haaland, S.E.; Oksavik, Kjellmar; Dandouras, Iannis; Fazakerley, A; Cornilleau-Wehrlin, N.; Trotignon, J-G. 2012. Cluster observations in the cusp of electron escape and increased wave and electric field amplitudes in electron density cavities.
  • Reistad, Jone Peter; Østgaard, Nikolai; Oksavik, Kjellmar; Laundal, Karl Magnus. 2012. Asymmetric field-aligned currents in the conjugate hemispheres.
  • Sigernes, Fred; Dyrland, Margit Elisabet; Brekke, Pål; Chernouss, S; Lorentzen, Dag Arne; Oksavik, Kjellmar; Deehr, C. S. 2011. Two methods to forecast auroral displays. Journal of Space Weather and Space Climate.
  • Oksavik, Kjellmar; Moen, Jøran Idar; Rekaa, Ellen H; Carlson, H. C.; Lester, Mark. 2011. Reversed flow events in the cusp ionosphere detected by SuperDARN HF radars. Journal of Geophysical Research (JGR): Space Physics. 12 pages.
  • Moen, Jøran Idar; Oksavik, Kjellmar; Abe, T; Saito, Y; Lester, Mark. 2011. In-situ observations of SuperDARN HF radar echoing targets.
  • Fear, R. C.; Milan, Steve E.; Oksavik, Kjellmar; Pedersen, Arne. 2011. Determining the axial direction of high-shear flux transfer events.
  • Håland, Stein Egil; Søraas, Finn; Daly, P.; Johnsen, Christine; Georgescu, E.; Kronberg, E.; Oksavik, Kjellmar; Østgaard, Nikolai. 2011. Determination of polar cap size and shape using energetic particles.

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