Kjellmar Oksavik
Position
Professor, Leader of Space Physics group
Affiliation
Research groups
Publications
Teaching:
Research:
2024
- Eriksen, Nina Kristine; Lorentzen, Dag Arne; Baddeley, Lisa et al. (2024). Multi-Scale and Multi-Instrumental Observations of a Decaying Airglow Patch. (external link)
- Laundal, Karl Magnus; Reistad, Jone Peter; Hatch, Spencer Mark et al. (2024). Volumetric reconstruction of ionospheric electric currents from tri-static incoherent scatter radar measurements. (external link)
- Lu, Sheng; Xing, Zan-Yang; Zhang, Qing-He et al. (2024). A Statistical Study of Space Hurricanes in the Southern Hemisphere. (external link)
- Zhang, Duan; Zhang, Qing-He; Oksavik, Kjellmar et al. (2024). Multi-instrument Observations of the Evolution of Polar Cap Patches Associated with Flow Shears and Particle Precipitation. (external link)
- Xiu, Zhi-Feng; Ma, Yu-Zhang; Zhang, Qing-He et al. (2024). Directly Observation of Space Hurricane Disturbed Polar Thermosphere. (external link)
- Ma, Yu-Zhang; Zhang, Qing-He; Lyons, Larry R. et al. (2024). Multi-instrument Analysis of the Segmentation of the Tongue of Ionization Into Two Dense Polar Cap Patches. (external link)
- Zhang, Qing-He; Lu, Sheng; Xiu, Zhi-Feng et al. (2024). Recent Progresses of Space Hurricane. (external link)
- Madhanakumar, Mahith; Spicher, Andres; Vierinen, Juha-Pekka et al. (2024). Multi-instrument study of dayside scintillation at GNSS L-band frequencies. (external link)
- Frøystein, Ingeborg; Spicher, Andres; Oksavik, Kjellmar et al. (2024). Identification and characterization of the dayside ionospheric low energy precipitation region based on ISR measurements. (external link)
- Jin, Yaqi; Spicher, Andres; Pecseli, Hans Laszlo et al. (2024). In-situ observations of plasma blob inside the nightside auroral region and features of small-scale irregularities. (external link)
- Madhanakumar, Mahith; Spicher, Andres; Vierinen, Juha-Pekka et al. (2024). The progress and decay of GNSS scintillation during a weak geomagnetic storm: A case study. (external link)
- Oksavik, Kjellmar (2024). Space Weather Activities in Norway. (external link)
- Madhanakumar, Mahith; Spicher, Andres; Vierinen, Juha-Pekka et al. (2024). Source regions of irregularities causing GNSS radio scintillation: An investigation using EISCAT. (external link)
- Spicher, Andres; Kvammen, Andreas; Zettergren, M. et al. (2024). Characterizing ionospheric turbulence on the poleward side of the cusp using sounding rocket observations and modelling work. (external link)
- Spicher, Andres; Rexer, Theresa; Kvammen, Andreas et al. (2024). Characterization and Assessment of Structuring Connected to Auroral Dynamics using EISCAT_3D (CASCADE): A brief overview. (external link)
- Wang, Xiangyu; Zhang, Qing-He; Wang, Chi et al. (2024). Unusual shrinkage and reshaping of Earth’s magnetosphere under a strong northward interplanetary magnetic field. (external link)
- Enengl, Florine; Spogli, L.; Kotova, Daria et al. (2024). Investigation of Ionospheric Small-Scale Plasma Structures Associated With Particle Precipitation. (external link)
- Carter, J.A.; Dunlop, M.; Forsyth, C. et al. (2024). Ground-based and additional science support for SMILE. (external link)
- Madhanakumar, Mahith; Spicher, Andres; Vierinen, Juha-Pekka et al. (2024). On the strength of E and F region irregularities for GNSS scintillation in the dayside polar ionosphere. (external link)
- Xiu, Zhi-Feng; Ma, Yu-Zhang; Zhang, Qing-He et al. (2024). Direct Observation of the Space Hurricane Disturbed Polar Thermosphere. (external link)
- Sembay, S.; Alme, A.L.; Agnolon, D. et al. (2024). The Soft X-ray Imager (SXI) on the SMILE Mission. (external link)
- Reistad, Jone Peter; Hatch, Spencer Mark; Laundal, Karl Magnus et al. (2024). Volumetric Reconstruction of Ionospheric Electric Currents From Tri-Static Incoherent Scatter Radar Measurements. (external link)
- Ma, Yu-Zhang; Zhang, Qing-He; Zhao, Si-Han et al. (2024). Multi-Instrument Analysis of the Formation and Segmentation of Tongue of Ionization Into Two Consecutive Polar Cap Patches. (external link)
- Lu, Sheng; Xing, Zan-Yang; Zhang, Qing-He et al. (2024). A Statistical Study of Space Hurricanes in the Southern Hemisphere. (external link)
2023
- Zhang, Duan; Zhang, Qing-He; Oksavik, Kjellmar et al. (2023). Can Throat Auroras Create Polar Cap Patches?. (external link)
- Hatch, Spencer Mark; Reistad, Jone Peter; Laundal, Karl Magnus et al. (2023). E3D-BRITE: EISCAT_3D-based reconstruction of ionosphere-thermosphere electrodynamics. (external link)
- Wang, Xiang-Yu; Zhang, Qing-He; Wang, Chi et al. (2023). Unusual shrinkage and reshaping of Earth’s magnetosphere under a strong northward interplanetary magnetic field. (external link)
- Lu, Sheng; Xing, Zan-Yang; Zhang, Qing-He et al. (2023). A Statistical Study of Space Hurricanes in the Northern Hemisphere. (external link)
- Ma, Yu-Zhang; Zhang, Qing-He; Lyons, Larry R. et al. (2023). A Comparative Study on the Polar Cap Hot Patch and Cold Patch by Using Multi-instrument Observations. (external link)
- Lu, Sheng; Xing, Zan-Yang; Zhang, Qing-He et al. (2023). Three-dimensional Ionospheric Plasma Properties of Space Hurricane. (external link)
- Wang, Xiang-Yu; Zhang, Qing-He; Wang, Chi et al. (2023). Unusual Shrinkage and Reshaping of Earth's Magnetosphere Under a Strong Northward Interplanetary Magnetic Field. (external link)
- Baddeley, Lisa; Lorentzen, Dag Arne; Haaland, Stein Egil et al. (2023). Space and atmospheric physics on Svalbard: a case for continued incoherent scatter radar measurements under the cusp and in the polar cap boundary region. (external link)
- Enengl, Florine; Spogli, Luca; Kotova, Daria et al. (2023). On the formation of small-scale irregularities driven by auroral particle precipitation. (external link)
- Oksavik, Kjellmar; Olafsson, Kjartan (2023). Experiences with new teaching measures among first-year physics students. (external link)
- Spicher, Andres; Kvammen, Andreas; LaBelle, James et al. (2023). Examining the relevance of different instability mechanisms in causing ionospheric cusp irregularities based on sounding rocket data and numerical simulations. (external link)
- Lessard, Marc R.; Damsell, Alec; Sadler, F. Brent et al. (2023). Interhemispheric asymmetries of neutral upwelling and ion upflow. (external link)
- Eriksen, Nina Kristine; Nishimura, T.; Zettergren, Matthew D. et al. (2023). Low-Density Ionospheric Polar Cap Patches: Insights on Airglow and Density Variations from Multi-Instrumental Analysis. (external link)
- Eriksen, Nina Kristine; Lorentzen, Dag Arne; Oksavik, Kjellmar et al. (2023). On the Creation, Depletion, and End of Life of Polar Cap Patches. (external link)
- Ma, Yu-Zhang; Zhang, Qing-He; Lyons, Larry et al. (2023). A Comparative Study on the Hot Dense Plasma and Cold Patch by Using Multi-Instrument Observations. (external link)
- Zhang, Duan; Zhang, Qing-He; Oksavik, Kjellmar et al. (2023). Do the Throat Auroras Create Polar Cap Patches?. (external link)
- Zhang, Duan; Zhang, Qing-He; Oksavik, Kjellmar et al. (2023). Multi-Instrument Observations of the Evolution of Polar Cap Patches Associated With Flow Shears and Particle Precipitation. (external link)
- Goodrich, Katherine; Fuselier, Stephen A.; Kletzing, Craig et al. (2023). The TRACERS Mission; Utilizing Every Tool in the Toolbox. (external link)
- Carter, Jennifer Alyson; Samara-Ratna, Piyal; Lepri, Susan T. et al. (2023). Elfen: A CubeSat mission to measure heavy ions on both the dayside and nightside of Earth's magnetosphere. (external link)
2022
- Zhang, Duan; Zhang, Qing-He; Ma, Y.-Z. et al. (2022). The Dependence of Cold and Hot Patches on Local Plasma Transport and Particle Precipitation in Northern Hemisphere Winter. (external link)
- Spicher, Andres; LaBelle, James; Bonnell, John W. et al. (2022). Interferometric Study of Ionospheric Plasma Irregularities in Regions of Phase Scintillations and HF Backscatter. (external link)
- Lu, Sheng; Xing, Zan-Yang; Zhang, Qing-He et al. (2022). A statistical study of space hurricanes in the Northern Hemisphere. (external link)
- Herlingshaw, Katie; Baddeley, Lisa; Oksavik, Kjellmar et al. (2022). A statistical study of polar cap flow channels observed in both hemispheres using SuperDARN radars. (external link)
- Zheng, Yuhao; Xiong, Chao; Jin, Yaqi et al. (2022). The refractive and diffractive contributions to GPS signal scintillation at high latitudes during the geomagnetic storm on 7-8 September 2017. (external link)
- Spicher, Andres; Vierinen, Juha; Oksavik, Kjellmar et al. (2022). Statistical characteristics of ionospheric irregularities in the cusp ionosphere based on multi-instrument techniques. (external link)
- Xing, Zan-Yang; Yuyan, J; Zhang, Qing-He et al. (2022). On the Acceleration of Polar Cap Patches Entering the Nightside Auroral Oval. (external link)
- Zhang, Duan; Zhang, Qing-He; Ma, Yu-Zhang et al. (2022). The Dependence of Cold and Hot Patches on Localized Plasma Transport and Particle Precipitation. (external link)
- Xiong, Chao; Zheng, Yuhao; Jin, Yaqi et al. (2022). Diagnose the diffractive contribution to GNSS scintillation at high latitude during the geomagnetic storm on 7-8 September 2017. (external link)
- Wang, Xiang-Yu; Zhang, Qing-He; Wang, Chi et al. (2022). A Small and Nearly Fully Closed Earth’s Magnetosphere for Strongly Northward Interplanetary Magnetic Field. (external link)
- Spicher, Andres; LaBelle, James William; Bonnell, John W. et al. (2022). Sounding rocket investigation of multi-scale (density) irregularities in the cusp region. (external link)
- Mann, Ingrid; Huyghebaert, Devin Ray; Solheim, Inger et al. (2022). EISCAT_3D - research infrastructure for international collaboration on exploration of the upper atmosphere and space above the Arctic . (external link)
- Zhang, Qing-He; Oksavik, Kjellmar; Tang, Bin-Bin et al. (2022). A “wave-like” Evolution of Polar Cap Patches Modulated by the Magnetotail Reconnections in Wide Magnetic Local Time Regions. (external link)
- Eriksen, Nina Kristine; Lorentzen, Dag Arne; Oksavik, Kjellmar et al. (2022). Creation, Depletion and End of Life of Polar Cap Patches. (external link)
- Huyghebaert, Devin Ray; Mann, Ingrid; Baddeley, Lisa et al. (2022). EISCAT 3D Norway - An Overview. (external link)
- Spicher, Andres; Vierinen, Juha; Oksavik, Kjellmar et al. (2022). Multi-instrument multi-scale characterization of ionospheric irregularities in the cusp region. (external link)
- Zhang, Hui; Zong, Qiugang; Connor, Hyunju et al. (2022). Dayside Transient Phenomena and Their Impact on the Magnetosphere and Ionosphere. (external link)
2021
- Moser, Chrystal; LaBelle, James William; Hatch, Spencer Mark et al. (2021). The Cusp as a VLF Saucer Source: First Rocket Observations of Long‐Duration VLF Saucers on the Dayside. (external link)
- Zhang, Qing-He; Zhang, Yongliang; Wang, Chi et al. (2021). Multiple Transpolar Auroral Arcs Reveal New Insight About Coupling Processes in the Earth’s Magnetotail. (external link)
- Wang, Yong; Cao, Zheng; Xing, Zan-Yang et al. (2021). The GPS Scintillations and TEC Variations in Association with A Polar Cap Arc. (external link)
- Zhang, Qing-He; Zhang, Yongliang; Wang, Chi et al. (2021). Multiple transpolar auroral arcs reveal new insight about coupling processes in the Earth’s magnetotail. (external link)
- Zhang, Duan; Zhang, Qing-He; Ma, Yu-Zhang et al. (2021). Solar and Geomagnetic Activity Impact on Occurrence and Spatial Size of Cold and Hot Polar Cap Patches. (external link)
- Oksavik, Kjellmar; Zhang, Qinghe (2021). Scientists spot a 'space hurricane' for the first time. (external link)
- Hovland, Amalie Ø.; Oksavik, Kjellmar; Reistad, Jone Peter et al. (2021). Electrodynamics surrounding polar cap auroral arcs. (external link)
- Zhang, Qing-He; Zhang, Yongliang; Wang, Chi et al. (2021). A Space Hurricane Over the Earth’s Polar Ionosphere. (external link)
- Zhang, Qing-He; Zhang, Yongliang; Wang, Chi et al. (2021). Multiple Transpolar Auroral Arcs Reveal New Insight About Coupling Processes in the Earth’s Magnetotail. (external link)
- Oksavik, Kjellmar (2021). Nordlys-forskning: Oppdaget rom-orkan. (external link)
- Oksavik, Kjellmar (2021). Mer nordlys i årene fremover: - Folk må bli flinkere til å se opp. (external link)
- Oksavik, Kjellmar (2021). På tide å se opp. (external link)
- Zhang, Qing-He; Zhang, Yong-Liang; Wang, Chi et al. (2021). A space hurricane over the Earth’s polar ionosphere. (external link)
- Wang, Yong; Cao, Zheng; Xing, Zan-Yang et al. (2021). GPS Scintillations and TEC Variations in Association With a Polar Cap Arc. (external link)
- Aksnes, Arve; Oksavik, Kjellmar (2021). Nordlyset: Den himmelske danserinnen!. (external link)
- Oksavik, Kjellmar (2021). Rom-orkan over Nordpolen. (external link)
- Oksavik, Kjellmar (2021). Kjellmar frå Fosnavåg oppdaga rom-orkan. (external link)
- Oksavik, Kjellmar (2021). Dette er en romorkan. (external link)
- Oksavik, Kjellmar (2021). Intervju om rom-orkan i ettermiddagssendinga. (external link)
- Oksavik, Kjellmar (2021). Heftig nordlys over Vestland i natt: - Jeg så varselet og kastet meg i bilen. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar (2021). Historisk rom-orkan. (external link)
- Oksavik, Kjellmar (2021). Denne flekken kan skape himmelmagi. (external link)
- Oksavik, Kjellmar (2021). Denne mørke flekken kan skape himmelmagi i Bergen. (external link)
- Oksavik, Kjellmar (2021). Hev seg i bilen for å ta bilder. (external link)
- Hatch, Spencer Mark; Haaland, Stein; Laundal, Karl Magnus et al. (2021). Hemispheric and seasonal variations in the cold plasma outflow source region: Swarm and CHAMP observations of F-region polar cap electron density. (external link)
- Zhang, Duan; Zhang, Qing-He; Ma, Yu-Zhang et al. (2021). Solar and geomagnetic activity impact on occurrence and spatial size of cold and hot polar cap patches. (external link)
- Branduardi-Raymont, Graziella; Berthomier, M; Bogdanova, Y. V. et al. (2021). Exploring solar-terrestrial interactions via multiple imaging observers. (external link)
- Bjoland, Lindis Merete; Ogawa, Y.; Løvhaug, Unni Pia et al. (2021). Electron Density Depletion Region Observed in the Polar Cap Ionosphere. (external link)
- Spicher, Andres; Moen, Jøran Idar; LaBelle, James William et al. (2021). Sounding rocket studies of ionospheric turbulence above Svalbard. (external link)
2020
- Spicher, Andres; LaBelle, James William; Bonnell, John W et al. (2020). On multi-scale density irregularities observed by sounding rockets within regions of enhanced scintillations in the cusp ionosphere. (external link)
- Hatch, Spencer Mark; Haaland, Stein; Laundal, Karl Magnus et al. (2020). Hemispheric and seasonal variations in the cold plasma outflow source region: polar cap ionosphere electron density at 350–500 km. (external link)
- Zhang, Qing-He; Zhang, Yong-Liang; Wang, Chi et al. (2020). A long-lasting auroral bright spot around magnetic north pole: Is it the evidence of stable lobe magnetic reconnection?. (external link)
- Prikryl, Paul; Weygand, J. M.; Ghoddousi-Fard, Reza et al. (2020). Subauroral GPS TEC and phase variations during geomagnetic storms. (external link)
- Zhang, Qing-He; Zhang, Yongliang; Wang, Chi et al. (2020). Multiple transpolar auroral arcs reveal insight about coupling processes in the Earth’s magnetotail. (external link)
- Herlingshaw, Katie; Baddeley, Lisa; Oksavik, Kjellmar et al. (2020). A statistical study of polar cap flow channels and their IMF by dependence. (external link)
- Spicher, Andres; Deshpande, Kshitija; Jin, Yaqi et al. (2020). On the Production of Ionospheric Irregularities Via Kelvin-Helmholtz Instability Associated with Cusp Flow Channels. (external link)
- Follestad, Anna Kristine Fæhn; Herlingshaw, Katie; Ghadjari, Hossein et al. (2020). Dayside Field-Aligned Current Impacts on Ionospheric Irregularities. (external link)
- Jenner, Luke A.; Wood, Alan G.; Dorrian, Gareth D. et al. (2020). Plasma density gradients at the edge of polar ionospheric holes: the absence of phase scintillation. (external link)
- Ma, Yu-Zhang; Zhang, Qing-He; Jayachandran, Periyadan T. et al. (2020). Statistical Study of the Relationship Between Ion Upflow and Field-Aligned Current in the Topside Ionosphere for Both Hemispheres During Geomagnetic Disturbed and Quiet Time. (external link)
- Spicher, Andres; Kletzing, Craig A.; Bounds, Scott et al. (2020). Cusp rocket experiment of density structures. (external link)
- Zhang, Qing-He; Zhang, Yong-Liang; Wang, Chi et al. (2020). Multiple transpolar auroral arcs reveal insight about coupling processes in the Earth’s magnetotail. (external link)
- Lessard, Marc R.; Fritz, Bruce; Sadler, Brent et al. (2020). Overview of the Rocket Experiment for Neutral Upwelling Sounding Rocket 2 (RENU2). (external link)
- Hatch, Spencer Mark; Haaland, Stein; Laundal, Karl Magnus et al. (2020). Seasonal and Hemispheric Asymmetries of F Region Polar Cap Plasma Density: Swarm and CHAMP Observations. (external link)
2019
- Hatch, Spencer Mark; Baddeley, Lisa; Oksavik, Kjellmar et al. (2019). EDGAR: Energy Deposition in the Geomagnetic Cusp Alfvén Resonator. (external link)
- Reistad, Jone Peter; Laundal, Karl Magnus; Østgaard, Nikolai et al. (2019). Separation and quantification of ionospheric convection sources: 2. The dipole tilt angle influence on reverse convection cells during northward IMF. (external link)
- Reistad, Jone Peter; Laundal, Karl Magnus; Østgaard, Nikolai et al. (2019). Separation and quantification of ionospheric convection sources: 1. A new technique. (external link)
- Clemmons, J.; Rowland, Douglas E.; Pfaff, Robert F. et al. (2019). Results from a Grand Challenge Initiative-Cusp Mission: VISIONS-2. (external link)
- Zhou, Shan-Yu; Zhang, Qing-He; Jayachandran, Periyadan T. et al. (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. (external link)
- Zhang, Qing-He; Shen, Guo-Cheng; Zhang, Yongliang et al. (2019). A long-lasting auroral bright spot around magnetic north pole: Is it the evidence of stable magnetic reconnection?. (external link)
- Reistad, Jone Peter; Laundal, Karl Magnus; Ohma, Anders et al. (2019). A new way to identify and quantify the sources of ionospheric convection. (external link)
- Rowland, Douglas E.; Burchill, Jonathan; Clemmons, J. et al. (2019). VISIONS-2: Imaging ion energization in the cusp. (external link)
- LaBelle, James; Kletzing, Craig A.; Moen, Jøran Idar et al. (2019). The Cusp Alfven and Plasma Electrodynamics 2 Mission. (external link)
- Herlingshaw, Katie; Baddeley, Lisa; Oksavik, Kjellmar et al. (2019). A Study of Automatically Detected Flow Channels in the Polar Cap Ionosphere. (external link)
- Reistad, Jone Peter; Laundal, Karl Magnus; Østgaard, Nikolai et al. (2019). Quantifying the dipole tilt influence on reverse convection cells during northward IMF using spherical elementary functions. (external link)
- Rowland, Douglas E.; Moen, Jøran Idar; Pfaff, Robert F. et al. (2019). VISIONS-2 observations of the electrodynamics of magnetosphere-ionosphere coupling. (external link)
- Follestad, Anna Kristine Fæhn; Herlingshaw, Katie; Ghadjari, Hossein et al. (2019). Birkeland Current Impacts on Cusp Ionospheric Irregularities. (external link)
- Clemmons, J.H.; Rowland, Douglas E.; Hecht, J. H. et al. (2019). VISIONS-2 Observations of Electron Dynamics and Alfvén Waves. (external link)
- Rowland, Douglas E.; Moen, Jøran Idar; Pfaff, Robert F. et al. (2019). VISIONS-2 observations of ion heating and energization near the exobase, and the role of wave-particle interactions. (external link)
- Pfaff, Robert F.; Rowland, Douglas E.; Freudenreich, H. et al. (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. (external link)
- Moser, Chrystal; LaBelle, James William; Kletzing, Craig A. et al. (2019). CAPER-2 and TRICE-2 Sounding Rocket Investigations: Whistler and Upper-Hybrid Waves in the Polar Cusp. (external link)
- Spicher, Andres; Deshpande, Kshitija; Zettergren, Matthew D. et al. (2019). Modeling scintillation produced by ionospheric Kelvin Helmholtz in the cusp ionosphere using GEMINI-SIGMA. (external link)
- Reistad, Jone Peter; Laundal, Karl Magnus; Ohma, Anders et al. (2019). A new way to identify and quantify the sources of ionospheric convection. (external link)
- Zhang, Q.-H.; Shen, Guo-Cheng; Zhang, Yongliang et al. (2019). A Long-lasting Auroral Bright Spot Around Magnetic North Pole: Is it the Evidence of Stable Magnetic Reconnection?. (external link)
- Han, Desheng; Xu, Tong; Jin, Yaqi et al. (2019). Meso-scale ionospheric flow cells, localized Joule heating, and ion upflow associated with throat aurora as observed by EISCAT. (external link)
- Zhou, Shan-Yu; Zhang, Qing-He; Oksavik, Kjellmar et al. (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. (external link)
- Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2019). Thermally excited 630.0 nm emissions in the polar ionosphere. (external link)
- Spicher, Andres; Oksavik, Kjellmar; Jin, Yaqi et al. (2019). On the sources of Cusp Ionospheric Scintillation Irregularities. (external link)
- Ma, Yu-Zhang; Zhang, Qing-He; Xing, Zan-Yang et al. (2019). The Ion/Electron Temperature Characteristics of Polar Cap Classical and Hot Patches and Their Influence on Ion Upflow. (external link)
- Jin, Yaqi; Oksavik, Kjellmar (2019). Severe GPS Phase and Amplitude Scintillations at High Latitudes During the 2015 St. Patrick’s Day Storm. (external link)
- Spicher, Andres; Oksavik, Kjellmar; Jin, Yaqi et al. (2019). A reverse flow event as the onset of ionospheric scintillation irregularities in the cusp. (external link)
- Jin, Yaqi; Moen, Jøran Idar; Spicher, Andres et al. (2019). Simultaneous rocket and scintillation observations of plasma irregularities associated with a reversed flow event in the cusp ionosphere. (external link)
- Han, De-Sheng; Xu, Tong; Jin, Yaqi et al. (2019). Observational evidence for throat aurora being associated with magnetopause reconnection. (external link)
2018
- Mann, Ingrid; Kauristie, Kirsti; Bamford, Ruth et al. (2018). Challenges and Strategic Research Plans for Earth and Heliosphere: Research Infrastructures, Projects and Initiatives. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2018). Observations of asymmetries in ionospheric return flow during different levels of geomagnetic activity. (external link)
- Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2018). Seasonal and solar cycle variations of thermally excited 630.0 nm emissions in the polar ionosphere. (external link)
- Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2018). Thermally excited 630.0 nm emissions in the polar ionosphere. (external link)
- Jin, Yaqi; Oksavik, Kjellmar (2018). GPS Scintillations and Losses of Signal Lock at High Latitudes During the 2015 St. Patrick's Day Storm. (external link)
- Katamzi-Joseph, Zama T.; Aruliah, Anasuya L.; Oksavik, Kjellmar et al. (2018). Multi-instrument observations of large-scale atmospheric gravity waves/traveling ionospheric disturbances associated with enhanced auroral activity over Svalbard. (external link)
- Kunduri, Bharat S R; Baker, Joseph B.H.; Ruohoniemi, John Michael et al. (2018). A New Empirical Model of the Subauroral Polarization Stream. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Carlson, H. C. et al. (2018). The investigation of cusp irregularities rocket program. (external link)
- Oksavik, Kjellmar (2018). SMILE: New opportunities for global imaging of space weather near Earth. (external link)
- Katamzi-Joseph, Zama T.; Aruliah, Anasuya; Oksavik, Kjellmar et al. (2018). Multi-instrument observations of atmospheric gravity waves/traveling ionospheric disturbances associated with enhanced auroral activity. (external link)
- Herlingshaw, Katie; Baddeley, Lisa; Lorentzen, Dag Arne et al. (2018). Automatic detection of flow channels in the polar cap ionosphere. (external link)
- Baddeley, Lisa; Lorentzen, Dag Arne; Partamies, Noora et al. (2018). Equatorward Propagating Auroral Arcs Driven by ULF Wave Activity: Multipoint Ground and Space Based Observations in the Dusk Sector Auroral Oval. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Carlson, Herbert C et al. (2018). The Investigation of Cusp Irregularities Rocket Program. (external link)
- Ma, Yu-Zhang; Zhang, Qing-He; Xing, Zan-Yang et al. (2018). The ion/electron temperature characteristics of polar cap classical and hot patches and their influence on ion upflow. (external link)
- Kunduri, Bharat S.R.; Baker, Joseph B.H.; Ruohoniemi, John Michael et al. (2018). Recent developments in our knowledge of inner magnetosphere-ionosphere convection. (external link)
2017
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2017). When and where is the process of restoring symmetry important?. (external link)
- Prikryl, Paul; Ghoddousi-Fard, Reza; Viljanen, Ari et al. (2017). Comparison of geomagnetic March 2013 and 2015 storms: GPS phase scintillation and auroral electrojet currents. (external link)
- Summers, Danny; Shi, Run; Engebretson, Mark J. et al. (2017). Energetic proton spectra measured by the Van Allen probes. (external link)
- Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2017). How often do thermally excited 630.0 nm emissions occur in the Polar Ionosphere?. (external link)
- Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2017). Thermally Excited 630.0 nm Emissions in the Polar Ionosphere. (external link)
- Reed, Kristian; Oksavik, Kjellmar (2017). Study of meso-scale reversed flow events in the polar ionosphere by SuperDARN radars. (external link)
- Baddeley, Lisa; Lorentzen, Dag Arne; Partamies, Noora et al. (2017). Equatorward propagating auroral arcs driven by ULF wave activity: Multipoint ground- and space-based observations in the dusk sector auroral oval. (external link)
- Kim, Hyomin; Lessard, Marc R.; Jones, Sarah L. et al. (2017). Simultaneous observations of traveling convection vortices: Ionosphere-thermosphere coupling. (external link)
- Jin, Yaqi; Moen, Jøran Idar; Oksavik, Kjellmar et al. (2017). GPS scintillations associated with cusp dynamics and polar cap patches. (external link)
- Chen, Xiangcai; Han, Desheng; Lorentzen, Dag Arne et al. (2017). Dynamic properties of throat aurora revealed by simultaneous ground and satellite observations. (external link)
- Oksavik, Kjellmar; Reed, Kristian; Baddeley, Lisa et al. (2017). Reversed Flow Events in the Polar Ionosphere. (external link)
- Prikryl, Paul; Ghoddousi-Fard, Reza; Viljanen, A et al. (2017). Geomagnetic storms of March 17, 2013 and 2015: GPS phase scintillation and auroral electrojet currents. (external link)
- Oksavik, Kjellmar; Reed, Kristian; Ruohoniemi, J. Michael et al. (2017). Channels of Reversed Flow in the Polar Ionosphere. (external link)
- Kunduri, Bharat S R; Baker, J. B. H.; Ruohoniemi, J. Michael et al. (2017). Statistical characterization of the Sub-Auroral Polarization Stream (SAPS). (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2017). The influence of plasma flows bringing the magnetotail back to a more symmetric configuration. (external link)
- Ruohoniemi, J. Michael; Baker, J. B. H.; Maimaiti, M. et al. (2017). The Occurrence of Small-scale Irregularities in the Mid-latitude Ionosphere from SuperDARN HF Radar Observations. (external link)
- Habarulema, J. B.; Thobeka Katamzi, Z.; Aruliah, Anasuya L. et al. (2017). Observations of gravity waves associated with enhanced auroral activity: GPS, FPI and magnetometer measurements over Svalbard. (external link)
- Kenward, D.; Lessard, M.; Lynch, Kristina A. et al. (2017). Examination of Cross-Scale Coupling During Auroral Events using RENU2 and ISINGLASS Sounding Rocket Data. (external link)
- Brinkman, D. G.; Walterscheid, R. L.; Clemmons, J.H. et al. (2017). High Resolution Modeling of the Thermospheric Response to Energy Inputs during the RENU-2 Rocket Flight. (external link)
- Prikryl, Paul; Ghoddousi-Fard, Reza; Viljanen, A et al. (2017). GPS phase scintillation and auroral electrojet currents during geomagnetic storms of March 17, 2013 and 2015. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Carlson, Herbert C et al. (2017). Kelvin Helmholtz and Gradient Drift instabilities in ionosphere cusp flow channels. (external link)
2016
- Prikryl, Paul; Ghoddousi-Fard, Reza; Durgonics, T. et al. (2016). GPS phase scintillation during the geomagnetic storm of March 17, 2015: The relation to auroral electrojet currents. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Tenfjord, Paul Arne Riksheim et al. (2016). Dynamic effects of restoring footpoint symmetry on closed magnetic field-lines: Asymmetric Birkeland currents. (external link)
- Prikryl, Paul; Ghoddousi-Fard, Reza; Weygand, James M. et al. (2016). GPS phase scintillation at high latitudes during the geomagnetic storm of 17-18 March 2015. (external link)
- Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2016). On the contribution of thermal excitation to the total 630.0 nm emissions in the northern cusp ionosphere. (external link)
- van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne (2016). Mesoscale ionospheric plasma irregularities and scintillation over Svalbard. (external link)
- Jin, Yaqi; Moen, Jøran Idar; Miloch, Wojciech Jacek et al. (2016). Statistical study of the GNSS phase scintillation associated with two types of auroral blobs. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Oksavik, Kjellmar (2016). Mechanisms responsible for asymmetric aurora between the conjugate hemispheres. (external link)
- Chen, Xiangcai; Lorentzen, Dag Arne; Moen, Jøran Idar et al. (2016). F region ionosphere effects on the mapping accuracy of SuperDARN HF radar echoes. (external link)
- Ellingsen, Pål Gunnar; Oksavik, Kjellmar; Strømme, Anja (2016). Raising young peoples’ eyes to the stars. (external link)
- Chen, Xiangcai; Lorentzen, Dag Arne; Moen, Jøran Idar et al. (2016). F-region ionosphere effects on the mapping accuracy of SuperDARN HF radar echoes. (external link)
- Prikryl, Paul; Ghoddousi-Fard, Reza; Connors, M et al. (2016). GPS phase scintillation during the geomagnetic storm of March 17, 2015: The relation to auroral electrojet currents. (external link)
- Prikryl, Paul; Ghoddousi-Fard, Reza; Connors, M et al. (2016). GPS phase scintillation during the geomagnetic storms of March 17, 2013 and 2015: Interhemispheric comparison and the relation to auroral electrojet currents. (external link)
- Oksavik, Kjellmar; Reed, Kristian; Lorentzen, Dag Arne et al. (2016). Plasma Flow Channel Events in the Polar Ionosphere. (external link)
- Sadler, B.; Lessard, Marc; Oksavik, Kjellmar et al. (2016). A Cusp Density Enhancement Study using CHAMP/EISCAT conjunctions. (external link)
- Chen, Xiangcai; Lorentzen, Dag Arne; Moen, Jøran Idar et al. (2016). Simultaneous Ground-based Optical And HF Radar Observations Of The Ionospheric Footprint Of The Open/closed Field Line Boundary. (external link)
- Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2016). Occurrence and Characteristics of Thermally Excited 630.0 nm Emissions in the Polar Ionosphere. (external link)
- Prikryl, Paul; Ghoddousi-Fard, Reza; Connors, M et al. (2016). GPS phase scintillation during the geomagnetic storm of March 17, 2015: The relation to auroral electrojet currents. (external link)
- Clemmons, J.H.; Hecht, J. H.; Brinkman, D. G. et al. (2016). Structure of the thermosphere during energy input through the magnetospheric cusp: Measurements from the RENU2 ionization gauge. (external link)
- Kenward, D.; Lessard, Marc; Lynch, Kristina A. et al. (2016). Cusp Electron Populations During a Neutral Upwelling Event: Measurements from RENU2 and MMS Conjunction. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Tenfjord, Paul et al. (2016). Dynamic effects of restoring footpoint symmetry on closed magnetic field lines. (external link)
- van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2016). Scintillation and irregularities from the nightside part of a Sun-aligned polar cap arc. (external link)
2015
- Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2015). Dayside 630.0 nm emissions due to thermally excited O(1D) in the cusp region ionosphere over Longyearbyen, Svalbard. (external link)
- Spogli, L.; Alfonsi, L.; Di Mauro, D et al. (2015). GNSS scintillation case studies at high latitudes following solar events of January 2014. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Tenfjord, Paul et al. (2015). Are there auroral signatures related to asymmetric generation of field-aligned currents in the tail due to an IMF By induced twist?. (external link)
- van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne (2015). Observations of simultaneous multi-constellation GNSS scintillation in nightside aurora over Svalbard. (external link)
- Oksavik, Kjellmar; van der Meeren, Christer; Lorentzen, Dag Arne et al. (2015). Scintillation from poleward moving auroral forms in the cusp ionosphere. (external link)
- Engebretson, M. J.; Posch, J. L.; Wygant, J. R. et al. (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. (external link)
- Kwagala, Norah Kaggwa; Oksavik, Kjellmar (2015). Dayside 630.0 nm emissions due to thermally excited O(1D) in the cusp region ionosphere over Longyearbyen, Svalbard. (external link)
- Engebretson, Mark J.; Posch, Jennifer L.; Wygant, John R. et al. (2015). Van Allen probes, NOAA, GOES, and ground observations of an intense EMIC wave event extending over 12 h in magnetic local time. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Tenfjord, Paul et al. (2015). On the importance of magnetotail untwisting. (external link)
- Engebretson, M. J.; Posch, J. L.; Wygant, J. R. et al. (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. (external link)
- Tyssøy, Hilde Nesse; Stadsnes, Johan; Søraas, Finn et al. (2015). Particle Detector - Bounce Loss Cone Fluxes . (external link)
- Oksavik, Kjellmar; Sigernes, Fred; Lorentzen, Dag Arne et al. (2015). Observations of the dayside cusp aurora using ground-based optics and radar. (external link)
- 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. (external link)
- van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2015). Severe and localized GNSS scintillation at the poleward edge of the nightside auroral oval during intense substorm aurora. (external link)
- Sigernes, Fred; Ellingsen, Pål Gunnar; Holmen, Silje Eriksen et al. (2015). The total solar eclipse on Svalbard 2015. (external link)
- Brekke, Pål; Oksavik, Kjellmar; Ellingsen, Pål Gunnar et al. (2015). Solformørkelsen var enda bedre enn forventet. Forskerjubel på Svalbard. (external link)
- Baddeley, Lisa; Lorentzen, Dag Arne; Oksavik, Kjellmar et al. (2015). Co-ordinated EISCAT and optical measurements of multiple equatorward propagating auroral arcs. (external link)
- Oksavik, Kjellmar (2015). Se nordlyset over Rundemanen. (external link)
- Brekke, Pål; Oksavik, Kjellmar (2015). Solformørkelsen på Svalbard. (external link)
- Moen, Jøran Idar; Carlson, Herbert C; Oksavik, Kjellmar et al. (2015). FTE driven dynamics of the F-region cusp ionosphere. (external link)
- Lessard, Marc; Cohen, I. J.; Varney, R. H. et al. (2015). Ion upflow dependence on ionospheric density and solar photoionozation. (external link)
- Sigernes, Fred; Ellingsen, Pål Gunnar; Holmen, Silje Eriksen et al. (2015). Preliminary results from the total solar eclipse campaign on Svalbard 2015. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Lynnebakken, Hilde (2015). 11 lange dagers ferd mot nordlyset. (external link)
- Cohen, Ian J.; Lessard, Marc R.; Varney, Roger H. et al. (2015). Ion upflow dependence on ionospheric density and solar photoionization. (external link)
- Chen, Xiangcai; Lorentzen, Dag Arne; Moen, Jøran Idar et al. (2015). Simultaneous ground-based optical and HF radar observations of the ionospheric footprint of the open/closed field line boundary along the geomagnetic meridian. (external link)
- Oksavik, Kjellmar; van der Meeren, Christer; Lorentzen, Dag Arne et al. (2015). Scintillation and loss of signal lock from poleward moving auroral forms in the cusp ionosphere. (external link)
- McCrea, Ian W.; Aikio, Anita; Alfonsi, Lucilla et al. (2015). The science case for the EISCAT_3D radar. (external link)
- Moen, Jøran Idar; Clausen, Lasse Boy Novock; Spicher, Andres et al. (2015). Investigation of F-region auroral blobs by the ICI-4 sounding rocket. (external link)
2014
- Sandanger, Marit Irene J.; Ødegaard, Linn Kristine G.; Tyssøy, Hilde Nesse et al. (2014). A new method of recalibrating NOAA MEPED proton measurements. (external link)
- Oksavik, Kjellmar (2014). What can multi-constellation GNSS measurements do for EISCAT_3D?. (external link)
- Oksavik, Kjellmar; van der Meeren, Christer; Lorentzen, Dag Arne et al. (2014). Ionospheric scintillations in the dayside polar ionosphere. (external link)
- Oksavik, Kjellmar; van der Meeren, Christer (2014). The GALILEO navigation system and space weather effects in the polar cap. (external link)
- van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2014). GPS phase scintillation and irregularities at the front of a tongue of ionization in the nightside polar cap. (external link)
- van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2014). Arrival of a tongue of ionization in the nightside polar ionosphere and effects on GPS scintillation. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2014). Asymmetric Solar Wind dynamo efficiency and IMF Bx. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2014). Conjugate and non-conjugate aspects of the aurora. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2014). Hemispheric asymmetries in the global aurora and IMF Bx. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2014). Comparison of solar wind driving of the aurora in the two hemispheres due to the solar wind dynamo. (external link)
- van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2014). GPS phase scintillation without diffractive irregularities: Case study at the front of an ionization tongue in the nightside polar ionosphere. (external link)
- van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2014). GPS scintillation and irregularities at the front of an ionization tongue in the nightside polar ionosphere. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2014). Intensity asymmetries in the dusk sector of the poleward auroral oval due to IMF Bx. (external link)
- Moen, Jøran Idar; Daabakk, Yvonne; Oksavik, Kjellmar et al. (2014). Plasma Instability Growth Rates in the F-Region Cusp Ionosphere. (external link)
- Engebretson, M. J.; Posch, J. L.; Wygant, J. R. et al. (2014). Van Allen Probes, NOAA, and Ground Observations of an Intense Pc 1 Wave Event Extending 12 Hours in MLT. (external link)
- Nishimura, T.; Lyons, Larry R.; Zou, Y et al. (2014). Day-night coupling by a localized flow channel visualized by polar cap patch propagation. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2014). Hemispheric differences in solar wind – magnetosphere interactions. (external link)
- Fear, R. C.; Milan, Steve; Oksavik, Kjellmar et al. (2014). Observational tests of flux transfer event structure. (external link)
- van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2014). GPS scintillation and irregularities at the front of a tongue of ionization in the nightside polar ionosphere over Svalbard. (external link)
- van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne et al. (2014). GNSS scintillations in the nightside polar ionosphere over Svalbard. (external link)
- Nishimura, Yukitoshi; Lyons, Larry R.; Zou, Ying et al. (2014). Day-night coupling by a localized flow channel visualized by polar cap patch propagation. (external link)
- Engebretson, M. J.; Posch, J. L.; Wygant, J. R. et al. (2014). Van Allen probes, NOAA, and ground observations of an intense Pc 1 wave event extending 12 hours in MLT. (external link)
- Oksavik, Kjellmar (2014). Ny himmelmagi på gang. (external link)
- Oksavik, Kjellmar (2014). Solstormer ga himmelmagi. (external link)
- Ghoddousi-Fard, Reza; Prikryl, Paul; Oksavik, Kjellmar et al. (2014). Characterization of high latitude GPS sensed ionospheric irregularities: Case studies. (external link)
- Oksavik, Kjellmar (2014). Plasma irregularities in the polar F-region of the ionosphere. (external link)
- Oksavik, Kjellmar (2014). Plasma convection over the polar ionosphere. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2014). Comparison of solar wind driving of the aurora in the two hemispheres due to solar wind dynamo. (external link)
- Sandanger, Marit Irene J.; Ødegaard, Linn Kristine G.; Tyssøy, Hilde Nesse et al. (2014). A New Method of recalibrating NOAA POES MEPED proton measurements. (external link)
- Lorentzen, Dag Arne; Sigernes, Fred; Baddeley, Lisa et al. (2014). The Kjell Henriksen Observatory – a window into space. (external link)
2013
- Ødegaard, Linn Kristine G.; Oksavik, Kjellmar (2013). Recalibration of the MEPED Proton Detectors Onboard NOAA POES Satellites. (external link)
- Van Der Meeren, Christer; Oksavik, Kjellmar (2013). A multi-instrument study of GPS scintillation in the nightside polar cap over Svalbard. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Alfonsi, L. et al. (2013). Space weather challenges of the polar cap ionosphere. (external link)
- Ødegaard, Linn Kristine G.; Oksavik, Kjellmar (2013). Recalibration of the MEPED Proton Detectors Onboard NOAA POES Satellites. (external link)
- Sandanger, Marit Irene J.; Tyssøy, Hilde Nesse; Stadsnes, Johan et al. (2013). Determination of NOAA MEPED correction factors - evaluation of different methods. (external link)
- Moen, Jøran Idar; Dåbakk, Yvonne Rinne; Bekkeng, Jan Kenneth et al. (2013). INVESTIGATION OF A CUSP FLOW CHANNEL BY THE ICI-3 SOUNDING ROCKET. (external link)
- van der Meeren, Christer; Oksavik, Kjellmar (2013). Effects on GPS scintillation from a tongue of ionization in the nightside polar ionosphere. (external link)
- van der Meeren, Christer; Oksavik, Kjellmar; Moen, Jøran Idar et al. (2013). A multi-instrument case study of high-latitude ionospheric GNSS scintillation due to drifting plasma irregularities. (external link)
- Oksavik, Kjellmar; van der Meeren, Christer; Moen, Jøran Idar et al. (2013). On Transient Phenomena in the Cusp Ionosphere. (external link)
- Carlson, H. C.; Moen, Jøran Idar; Oksavik, Kjellmar et al. (2013). Doubling of Ion Up-flow for Ion Outflow Calculations. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2013). Auroral intensity asymmetries associated with the x-component of the interplanetary magnetic field in the two polar hemispheres. (external link)
- van der Meeren, Christer; Oksavik, Kjellmar (2013). Tongue of ionization in the nightside polar ionosphere and effects on GPS scintillation. (external link)
- 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. (external link)
- Oksavik, Kjellmar (2013). Romvær: Nordlys og plasmaskyer truer GPS. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2013). On the non-conjugacy of nightside aurora and their generator mechanisms. (external link)
- Van Der Meeren, Christer; Oksavik, Kjellmar; Moen, Jøran Idar et al. (2013). A multi-instrument study of high-latitude ionospheric irregularities and their effects on GPS ionospheric scintillation. (external link)
- Oksavik, Kjellmar; Van Der Meeren, Christer; Moen, Jøran Idar et al. (2013). Ionospheric irregularities and effects on GNSS navigation systems in the polar cap. (external link)
- Ribeiro, A. J.; Ruohoniemi, J. M.; Ponomarenko, P. V. et al. (2013). A comparison of SuperDARN ACF fitting methods. (external link)
- Laundal, Karl Magnus; Østgaard, Nikolai; Reistad, Jone Peter et al. (2013). Non-Conjugate Features in the Auroral Ovals in the two Hemispheres. (external link)
- Reistad, Jone Peter; Haaland, Stein; Østgaard, Nikolai et al. (2013). Investigation of the role of IMF Bx on magnetopause characteristic past the terminator. (external link)
- Reistad, Jone Peter; Haaland, Stein; Østgaard, Nikolai et al. (2013). Investigation of a possible IMF Bx influence on magnetopause characteristic. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2013). Intensity asymmetries between the northern and southern auroral ovals associated with the x-component of the Interplanetary Magnetic Field. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Alfonsi, Lucilla et al. (2013). Space weather challenges of the polar cap ionosphere. (external link)
- 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. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2013). How IMF Bx affects the two polar hemispheres differently. (external link)
- Oksavik, Kjellmar; Van Der Meeren, Christer; Moen, Jøran Idar et al. (2013). Space weather effects on GNSS navigation systems in the polar cap. (external link)
- Ødegaard, Linn-Kristine Glesnes; Oksavik, Kjellmar; Søraas, Finn et al. (2013). Recalibration of the NOAA/POES MEPED instrument using a statistical approach. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2013). Simultaneous global imaging as a tracer of true conjugate regions. (external link)
- Reistad, Jone Peter; Haaland, Stein; Østgaard, Nikolai et al. (2013). Investigation of a possible IMF Bx influence on magnetopause characteristics. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2013). How IMF Bx affects the two hemispheres differently. (external link)
2012
- Lund, E. J.; Lessard, M. R.; Sigernes, Fred et al. (2012). Electron temperature in the cusp as measured with the SCIFER-2 sounding rocket. (external link)
- Oksavik, Kjellmar (2012). Det nøyaktige polpunktet. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Abe, Takumi et al. (2012). First in-situ measurements of HF radar echoing targets. (external link)
- 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. (external link)
- Young, Matthew A.; Lessard, Marc; Engebretson, Mark et al. (2012). Spectral enhancements associated with Pi1B events observed at high latitude. (external link)
- Borisova, T. D.; Blagoveshchenskaya, N. F.; Kalishin, A. S. et al. (2012). Effects of modification of the polar ionosphere with high-power short-wave extraordinary-mode HF waves produced by the spear heating facility. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar; Lester, M et al. (2012). In situ measurements of plasma irregularity growth in the cusp ionosphere. (external link)
- Oksavik, Kjellmar (2012). Vil varsle lyn og nordlys. (external link)
- Bjoland, Lindis Merete; Østgaard, Nikolai; Oksavik, Kjellmar et al. (2012). Ionospheric Signatures Associated with the 21 February 2008 Svalbard Earthquake. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar (2012). Space weather challenges of the polar cap ionosphere. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar; Carlson, Herbert C (2012). Spatial fine-structure in the F-region polar ionosphere. (external link)
- 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. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2012). Non-conjugate aurora and inter hemispheric currents. (external link)
- Pedersen, Arne; Lybekk, Bjørn; Moen, Jøran Idar et al. (2012). Cluster observations in the cusp of electron escape and increased wave and electric field amplitudes in electron density cavities. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Oksavik, Kjellmar (2012). How the solar wind dynamo affects the two polar regions differently. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar; van der Meeren, Christer et al. (2012). On plasma instabilities in the polar cap ionosphere. (external link)
- Moen, Jøran Idar; Dåbakk, Yvonne Rinne; Oksavik, Kjellmar et al. (2012). Investigation of reversed flow channel events by the ICI-3 sounding rocket. (external link)
- 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. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Baddeley, Lisa et al. (2012). Decameter plasma irregularities in F-region polar cap plasma. (external link)
- Reistad, Jone Peter; Østgaard, Nikolai; Oksavik, Kjellmar et al. (2012). Asymmetric field-aligned currents in the conjugate hemispheres. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Alfonsi, L. et al. (2012). Space weather challenges of the polar cap ionosphere. (external link)
2011
- Frissell, N. A.; Baker, J. B. H.; Ruohoniemi, J. M. et al. (2011). First radar observations in the vicinity of the plasmapause of pulsed ionospheric flows generated by bursty bulk flows. (external link)
- Moen, Jøran Idar; Bekkeng, Jan Kenneth; Bekkeng, Tore Andre et al. (2011). In-situ observations of plasma instabilities in the F-region cusp/polar cap ionosphere. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar; Lorentzen, Dag Arne et al. (2011). Sounding rocket measurements of decameter structures in the cusp. (external link)
- Sigernes, Fred; Dyrland, Margit Elisabet; Brekke, Pål et al. (2011). Two methods to forecast auroral displays. (external link)
- Lessard, Marc R.; Kim, H; Young, M et al. (2011). Ultra-Low Frequency wave interactions with the ionosphere. (external link)
- Fear, R. C.; Milan, Steve E.; Oksavik, Kjellmar et al. (2011). Determining the axial direction of high-shear flux transfer events. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar (2011). In-situ measurements of spatial fine-structures in polar cap patches. (external link)
- Oksavik, Kjellmar (2011). Gjest i studio under ettermiddagssendinga. (external link)
- Oksavik, Kjellmar (2011). Gjest i studio på Vestlandsrevyen. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Abe, T et al. (2011). In-situ observations of SuperDARN HF radar echoing targets. (external link)
- Fear, R. C.; Milan, Steve E.; Oksavik, Kjellmar et al. (2011). Determining the axial direction of high-shear flux transfer events. (external link)
- Håland, Stein Egil; Søraas, Finn; Daly, P. et al. (2011). Determination of polar cap size and shape using energetic particles. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar; Rekaa, Ellen H et al. (2011). Reversed flow events in the cusp ionosphere detected by SuperDARN HF radars. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar; Rekaa, Ellen H. et al. (2011). SuperDARN and reversed flow events in the cusp. (external link)
2010
- Moen, Jøran Idar; Oksavik, Kjellmar; Abe, T. et al. (2010). The first in-situ observations of echoing HF radar backscatter targets. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Abe, T. et al. (2010). The first in-situ observations of echoing HF radar backscatter targets, Seventh European Space Weather Week, Brugge. (external link)
- Moen, Jøran Idar; Rinne, Y.; Oksavik, Kjellmar et al. (2010). Observations of reversed flow channels in the winter cusp ionosphere by EISCAT Svalbard Radar. (external link)
- Lorentzen, Dag Arne; Moen, Jøran Idar; Oksavik, Kjellmar et al. (2010). In situ measurement of a newly created polar cap patch. (external link)
- Oksavik, Kjellmar; Barth, Vigdis Lonar; Moen, Jøran Idar et al. (2010). On the entry and transit of high-density plasma across the polar cap. (external link)
- Oksavik, Kjellmar; Barth, Vigdis Lonar; Moen, Jøran Idar et al. (2010). On the entry and transit of high-density plasma across the polar cap. (external link)
- Burchill, J.K.; Knudsen, D.J.; Clemmons, J.H. et al. (2010). Thermal ion upflow in the cusp ionosphere and its dependence on soft electron energy flux. (external link)
2009
- Lorentzen, Dag Arne; Moen, Jøran Idar; Sigernes, Fred et al. (2009). In-situ measurement of a poleward moving auroral form, 36th Annual European Meeting on Atmospheric Studies by Optical Methods. (external link)
- Sandanger, M.I.; Søraas, F.; Sørbø, M. et al. (2009). Relativistic electron losses related to EMIC waves during CIR and CME storms. (external link)
- Ogawa, Y; Häggström, I.; Buchert, S.C. et al. (2009). On the source of the polar wind in the polar topside ionosphere: First results from the EISCAT Svalbard radar. (external link)
2008
- Brandt, P.C.; Zheng, Y.; Sotirelis, T.S. et al. (2008). The linkage between the ring current and the ionosphere system. (external link)
- Carlson, HC; Oksavik, Kjellmar; Moen, Jøran Idar (2008). On a new process for cusp irregularity production. (external link)
- Moen, Jøran Idar; Rinne, Y.; Carlson, HC et al. (2008). On the relationship between thin Birkeland current arcs and reversed flow channels in the winter cusp/cleft ionosphere. (external link)
- Moen, Jøran Idar; Rinne, Yvonne; Carlson, Herbert C. et al. (2008). On the relationship between thin Birkeland current arcs and reversed flow channels in the winter cusp/cleft ionosphere. (external link)
- Moen, Jøran Idar; Rinne, Yvonne; Carlson, H. C. et al. (2008). On the relationship between thin Birkeland current arcs and reversed flow channels in the winter cusp/cleft ionosphere. (external link)
- Oksavik, Kjellmar; Osmundsen, Ellen; Moen, Jøran Idar et al. (2008). On the generation of ionospheric irregularities in the dayside polar cap. (external link)
2007
- Lorentzen, Dag Arne; Kintner, P.M.; Moen, Jøran Idar et al. (2007). Pulsating dayside aurora in relation to ion upflow events during a northward interplanetary magnetic field (IMF) dominated by a strongly negative IMF B-Y. (external link)
- Rinne, Y.; Moen, Jøran Idar; Oksavik, Kjellmar et al. (2007). Reversed flow events in the winter cusp ionosphere observed by the European Incoherent Scatter (EISCAT) Svalbard radar. (external link)
- 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. (external link)
- Rinne, Yvonne; Moen, Jøran Idar; Oksavik, Kjellmar et al. (2007). Reversed flow events in the winter cusp ionosphere observed by the European Incoherent Scatter (EISCAT) Svalbard radar. (external link)
- Simon, C; Lilensten, J; Moen, Jøran Idar et al. (2007). TRANS4: a new coupled electron/proton transport code comparison to observations above Svalbard using ESR, DMSP and optical measurements. (external link)
- Rinne, Yvonne; Moen, Jøran Idar; Oksavik, Kjellmar et al. (2007). Mesoscale Reversed Flow Events observed in the Cusp Ionosphere by the EISCAT Svalbard Radar. (external link)
- Rinne, Yvonne; Moen, Jøran Idar; Oksavik, Kjellmar et al. (2007). High Resolution Measurements of Reversed Flow Events in the Cusp Ionosphere by the ESR. (external link)
- Rinne, Yvonne; Moen, Jøran Idar; Oksavik, Kjellmar et al. (2007). ESR High Resolution Measurements of Reversed Flow Events in the Cusp Ionosphere. (external link)
- Moen, Jøran Idar; Rinne, Yvonne; Opgenoorth, H. et al. (2007). Reversed flow events in the cusp ionosphere: are they an inverted V signature?. (external link)
- Osmundsen, Ellen; Moen, Jøran Idar; Carlson, Herbert C. et al. (2007). On the generation of HF bckscatter power. (external link)
- Osmundsen, Ellen; Moen, Jøran Idar; Carlson, H. C. et al. (2007). On the origin of HF backscatter irregularities. (external link)
- Sørbø, Marita; Brandt, Pontus; Søraas, Finn et al. (2007). The Storm Time Equatorial Belt is dominated by Oxygen ions from the ring current. (external link)
2006
- Pryse, SE; Sims, RW; Moen, Jøran Idar et al. (2006). Ionospheric signatures of the low-latitude boundary layer under conditions of northward IMF and small clock angle. (external link)
- Moen, Jøran Idar; Carlson, Herbert C; Oksavik, Kjellmar et al. (2006). EISCAT observations of plasma patches at sub-auroral cusp latitudes. (external link)
- Aksnes, Arve; Stadsnes, Johan; Østgaard, Nikolai et al. (2006). Height profiles of the ionospheric electron density derived using space-based remote sensing of UV and X ray emissions and EISCAT radar data: A ground-truth experiment. (external link)
- Carlson, Herbert C; Moen, Jøran Idar; Oksavik, K et al. (2006). Direct observations of injection events of subauroral plasma into the polar cap. (external link)
- Oksavik, K; Ruohoniemi, JM; Greenwald, RA et al. (2006). Observations of isolated polar cap patches by the European Incoherent Scatter (EISCAT) Svalbard and Super Dual Auroral Radar Network (SuperDARN) Finland radars. (external link)
- Sørbø, Marita; Søraas, Finn; Aarsnes, Kjell et al. (2006). Latitude distribution of vertically precipitating energetic neutral atoms observed at low altitudes. (external link)
- Sandanger, Marit Irene J.; Søraas, Finn; Aarsnes, Kjell et al. (2006). Relativistic electrons during high speed solar wind streams. (external link)
- Rinne, Yvonne; Moen, Jøran Idar; Oksavik, Kjellmar et al. (2006). Mesoscale Transient Flow Channels observed in the Cusp Ionosphere by the EISCAT Svalbard Radar. (external link)
- 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. (external link)
- 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. (external link)
- Osmundsen, Ellen; Moen, Jøran Idar; Oksavik, Kjellmar et al. (2006). On the relationship between polar cap patches and regions of HF cusp backscatter. (external link)
- Moen, Jøran Idar; Carlson, H. C.; Oksavik, Kjellmar et al. (2006). Observations of Dayside Sub-Auroral Patches in the Svalbard Sector. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Carlson, H. C. (2006). On the relationship between ion up-flows and cusp auroral transients. (external link)
- Moen, Jøran Idar; Carlson, H. C.; Oksavik, Kjellmar et al. (2006). EISCAT observations of plasma patches at sub-auroral cusp latitudes. (external link)
2005
- Søraas, F.; Aarsnes, K.; Carlsen, D. V. et al. (2005). Ring current behavior as revealed by energetic proton precipitation. (external link)
- Sandanger, M. I.; Søraas, F.; Aarsnes, K. et al. (2005). Proton injections into the ring current associated with Bz variations during HILDCAA events. (external link)
- Østgaard, Nikolai; Moen, Jøran Idar; Mende, S. et al. (2005). Estimates of magnetotail reconnection rate based on IMAGE FUV and EISCAT measurements. (external link)
- Søraas, Finn; Aarsnes, Kjell; Carlsen, Dag Vartdal et al. (2005). Ring current behavior as revealed by energetic proton precipitation. (external link)
- Sandanger, Marit Irene J.; Oksavik, Kjellmar; Søraas, Finn et al. (2005). Proton Injections Into the Ring Current Associated With Bz Variations During HILDCAA Events. (external link)
- Søraas, Finn; Aarsnes, Kjell; Carlsen, Dag Vartdal et al. (2005). Ring current behavior as revealed by energetic proton precipitation. (external link)
- Sandanger, Marit Irene J.; Søraas, Finn; Aarsnes, Kjell et al. (2005). Proton Injections Into the Ring Current Associated With Bz Variations During HILDCAA Events. (external link)
- Østgaard, N; Moen, Jøran Idar; Mende, SB et al. (2005). Estimates of magnetotail reconnection rate based on IMAGE FUV and EISCAT measurements. (external link)
- Lockwood, M.; Davies, J.A.; Moen, Jøran Idar et al. (2005). Motion of the dayside polar cap boundary during substorm cycles: II. Generation of poleward-moving events and polar cap patches by pulses in the magnetopause reconnection rate. (external link)
- Lockwood, M.; Moen, Jøran Idar; van Eyken, A.P. et al. (2005). Motion of the dayside polar cap boundary during substorm cycles: I. Observations of pulses in the magnetopause reconnection rate. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar; Carlson, HC et al. (2005). Multi-instrument mapping of the small-scale flow dynamics related to a cusp auroral transient. (external link)
- Lockwood, M.; Davies, J. A.; Moen, Jøran Idar et al. (2005). Motion of the dayside polar cap boundary during substorm cycles: II. Generation of poleward-moving events and polar cap patches by pulses in the magnetopause reconnection rate. (external link)
- Lockwood, M.; Moen, Jøran Idar; van Eyken, A. P. et al. (2005). Motion of the dayside polar cap boundary during substorm cycles: I. Observations of pulses in the magnetopause reconnection rate. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar; Carlson, H. C. et al. (2005). Multi-instrument mapping of the small-scale flow dynamics related to a cusp auroral transient. (external link)
- Østgaard, Nikolai; Moen, Jøran Idar; Mende, Stephan B. et al. (2005). Estimates of magnetotail reconnection rate based on IMAGE FUV and EISCAT measurements. (external link)
- Blixt, Erik Mårten; Oksavik, Kjellmar; Ivchenko, N et al. (2005). Multi-instrument observations of daytime dynamic rayed aurora and plasma turbulence. (external link)
- Blixt, Erik Mårten; Oksavik, Kjellmar; Ivchenko, N et al. (2005). The importance of open field lines for the generation of daytime rayed aurora and plasma turbulence. (external link)
- Aksnes, Arve; Stadsnes, Johan; Østgaard, Nikolai et al. (2005). Height profiles of the ionospheric electron density derived from remote sensing of UV and X-ray emissions and measurements by the EISCAT radar: A comparison. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Carlson, H. C. (2005). On the relationship between ion up-flows and cusp auroral transients. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Ruohoniemi, J. M. et al. (2005). Observations of isolated polar cap patches by the EISCAT Svalbard and SuperDARN Finland radars. (external link)
- 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. (external link)
2004
- Søraas, F.; Aarsnes, K.; Oksavik, Kjellmar et al. (2004). Evidence for particle injection as the cause of Dst reduction during HILDCAA events. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Carlson, Herbert C (2004). On the relationship between ion upflow events and cusp auroral transients. (external link)
- Zong, Q.-G.; Fritz, T. A.; Spence, H. et al. (2004). Energetic particle sounding of the magnetopause: A contribution by Cluster/RAPID. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar; Carlson, Herbert C (2004). High-resolution observations of the small-scale flow pattern associated with a poleward moving auroral form in the cusp. (external link)
- Carlson, Herbert C; Oksavik, Kjellmar; Moen, Jøran Idar et al. (2004). Ionospheric patch formation: Direct measurements of the origin of a polar cap patch. (external link)
- Moen, Jøran Idar; Lockwood, M.; Oksavik, Kjellmar et al. (2004). The dynamics and relationships of precipitation, temperature and convection boundaries in the dayside auroral ionosphere. (external link)
- Oksavik, Kjellmar; Søraas, Finn; Moen, J. et al. (2004). Simultaneous optical, CUTLASS HF radar, and FAST spacecraft observations: signatures of boundary layer processes in the cusp. (external link)
- Zong, QG; Fritz, TA; Spence, H et al. (2004). Energetic particle sounding of the magnetopause: A contribution by Cluster/RAPID. (external link)
- Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar et al. (2004). Evidence for particle injection as the cause of D-st reduction during HILDCAA events. (external link)
- Moen, Jøran Idar; Oksavik, Kjellmar; Carlson, Herbert C. (2004). On the relationship between ion upflow events and cusp auroral transients. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar; Carlson, Herbert C et al. (2004). Small-scale flow pattern associated with a poleward moving auroral transient in the cusp region. (external link)
- Kintner, P.; Klatt, E.; Lynch, K. et al. (2004). Preliminary Results from the SERSIO Experiment. (external link)
- Pfaff, R.; Steigies, C.; Yeoman, T. K. et al. (2004). Combined sounding rocket and SuperDARN/EISCAT radar observations of plasma convection, shear, irregularities and other phenomena in the cusp and boundary layer during IMF Bz negative and By negative conditions. (external link)
- Søraas, F.; Oksavik, Kjellmar; Sandanger, M. I. et al. (2004). Relativistic electron losses in regions of anisotropic proton precipitation. (external link)
- 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. (external link)
- Aksnes, Arve; Stadsnes, Johan; Brekke, Asgeir et al. (2004). Comparing height profiles of the ionospheric electron density derived from remote sensing of UV- and X-ray emissions and from EISCAT radar data. (external link)
- Sandanger, M. I.; Søraas, F.; Oksavik, Kjellmar et al. (2004). Loss of relativistic electrons during HILDCAA events. (external link)
- Aksnes, A.; Stadsnes, J.; Brekke, A. et al. (2004). Comparing height profiles of the ionospheric electron density derived from remote sensing of UV- and X-ray emissions and from EISCAT radar data. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar; Lester, M. et al. (2004). On the collocation of turbulent electric fields and wide HF spectra. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar; Carlson, Herbert C. et al. (2004). Multi-instrument mapping of the small-scale flow dynamics related to a cusp auroral transient. (external link)
- Ellis, A. T.; Lessard, M. R.; Kintner, P. M. et al. (2004). A search for signatures of ion acoustic shoulders in the SERSIO sounding rocket data set. (external link)
- Moen, Jøran Idar; Lockwood, M.; Oksavik, Kjellmar et al. (2004). Identification of the open-closed field line boundary by multi-instrument techniques. (external link)
2003
- Milan, Steve; Lester, M.; Cowley, Stanley W. H. et al. (2003). Variations in polar cap area during two substorm cycles. (external link)
- Oksavik, Kjellmar; Søraas, F.; Moen, Jøran Idar et al. (2003). Simultaneous optical, CUTLASS HF radar, and FAST spacecraft observations in the cusp. (external link)
- Sørbø, M.; Søraas, F.; Aarsnes, K. et al. (2003). Multi-spacecraft observations of energetic electron and proton precipitation during geomagnetic storms. (external link)
- Søraas, Finn; Oksavik, Kjellmar; Aarsnes, Kjell et al. (2003). Storm time equatorial belt - an "image" of RC behavior. (external link)
- Milan, SE; Lester, M; Cowley, SWH et al. (2003). Variations in the polar cap area during two substorm cycles. (external link)
- Søraas, Finn; Oksavik, Kjellmar; Aarsnes, Kjell et al. (2003). Ring current dynamics and local time behaviour estimated from low-altitude proton observations. (external link)
- Søraas, Finn; Oksavik, Kjellmar; Aarsnes, Kjell et al. (2003). Ring current dynamics and local time behavior estimated from low-altitude proton observations. (external link)
- Nielsen, C. P.; Moen, Jøran Idar; Carlson, Herbert C et al. (2003). Patch formation in relation to cusp auroral activity. (external link)
- Aksnes, A.; Stadsnes, J.; Brekke, A. et al. (2003). Comparing height profiles of the ionospheric electron density derived from remote sensing of UV- and X-ray emissions and from EISCAT radar data. (external link)
- Sandanger, M. I.; Søraas, F.; Aarsnes, K. et al. (2003). A Study of Particle Injection into the Auroral/Ring Current During HILDCAA Events. (external link)
- Sandanger, M. I.; Søraas, F.; Aarsnes, K. et al. (2003). Particle injection into the auroral/ring current regions during HILDCAA events. (external link)
- Sandanger, M. I.; Søraas, F.; Aarsnes, K. et al. (2003). Partikkel injeksjon inn i nordlys- og ringstrømsområdene under HILDCAA. (external link)
- 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. (external link)
- Steigies, C.; Pfaff, R.; Oksavik, Kjellmar et al. (2003). Plasma density and temperature measurements in the cusp ionosphere. (external link)
- 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. (external link)
- Oksavik, Kjellmar (2003). A study of temporal and spatial variations in the polar cusp/cleft region using multi-instrument techniques. (external link)
- Oksavik, Kjellmar (2003). - Se, en plasmasky!. (external link)
- Oksavik, Kjellmar (2003). Kan sjå magnetosfæra. (external link)
- Sandanger, Marit Irene J.; Søraas, Finn; Aarsnes, Kjell et al. (2003). Partikkel injeksjon inn i nordlys- og ringstrøms områdene under HILDCAA. (external link)
- Sandanger, Marit Irene J.; Søraas, Finn; Aarsnes, Kjell et al. (2003). A study of particle injection into the Auroral/Ring Current during HILDCAA events. (external link)
- Evans, David; Greer, Sue; Søraas, Finn et al. (2003). Long-lived enhancements of >30 keV electron fluxes at very low L-values. (external link)
- 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. (external link)
- Sørbø, Marita; Søraas, Finn; Aarsnes, Kjell et al. (2003). Multi-spacecraft observations of energetic electron and proton precipitation during geomagnetic storms. (external link)
- Oksavik, Kjellmar; Søraas, Finn; Moen, Jøran et al. (2003). Simultaneous optical, CUTLASS HF radar, and FAST spacecraft observations in the cusp. (external link)
- Aksnes, Arve; Stadsnes, Johan; Brekke, Asgeir et al. (2003). Comparing height profiles of the ionospheric electron density derived from remote sensing of UV- and X-ray emissions and from EISCAT radar data. (external link)
- Sandanger, Marit Irene J.; Søraas, Finn; Aarsnes, Kjell et al. (2003). Particle injection into the auroral/ring current regions during HILDCAA events. (external link)
- Søraas, F.; Oksavik, Kjellmar; Aarsnes, K. et al. (2003). Ring current dynamics and local time behavior estimated from low-altitude proton observations. (external link)
- Søraas, F.; Oksavik, Kjellmar (2003). Ring current dynamics and local time behaviour estimated from low-altitude proton observations. (external link)
- Pfaff, R.; Steigies, C.; Acuna, M. et al. (2003). Combined sounding rocket and SuperDARN/EISCAT radar observations of plasma convection, shear, irregularities and other phenomena in the cusp and boundary layer during IMF Bz negative and By negative conditions. (external link)
- Østgaard, Nikolai; Moen, Jøran Idar; Mende, S. et al. (2003). Reconnection rate determined from EISCAT VHF radar measurements and IMAGE FUV imaging from space. (external link)
- Søraas, F.; Oksavik, Kjellmar; Aarsnes, K. et al. (2003). Ring current dynamics and local time behaviour estimated from low-altitude proton observations. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar; Carlson, Herbert C et al. (2003). Mapping of small-scale current and flow dynamics related to a cusp auroral transient. (external link)
- Oksavik, Kjellmar; Moen, Jøran Idar; Carlson, Herbert C et al. (2003). A new technique for monitoring polar cap patches with the EISCAT Svalbard and Mainland radars. (external link)
- Moen, Jøran Idar; Lockwood, M.; Oksavik, Kjellmar et al. (2003). The dynamics and relationships of precipitation, temperature and convection boundaries in the dayside auroral ionosphere. (external link)
2002
- Carlson, Herbert C; Oksavik, Kjellmar; Moen, Jøran Idar et al. (2002). ESR mapping of polar-cap patches in the dark cusp. (external link)
- Svenes, Knut; Stadsnes, Rune; Oksavik, Kjellmar et al. (2002). CLUSTER II: Research Initiatives by Norwegian Groups. (external link)
- Pedersen, Arne; Denig, William F.; Lucek, E. et al. (2002). Electric and magnetic field and plasma density measurements during multiple dayside boundary layer crossings on Cluster. (external link)
- Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar et al. (2002). Ring current intensity estimated from low-altitude proton observations. (external link)
- Carlson, Herbert C.; Oksavik, Kjellmar; Moen, Jøran et al. (2002). ESR mapping of polar-cap patches in the dark cusp. (external link)
- Oksavik, Kjellmar; Fritz, Theodore A; Zong, Quigang et al. (2002). Three-dimensional energetic ion sounding of the magnetopause using Cluster/RAPID. (external link)
- Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar et al. (2002). Proton precipitation as a measure of ring current injection. (external link)
- Oksavik, Kjellmar; Søraas, Finn; Fritz, Theodore A et al. (2002). Three-dimensional magnetopause sounding using Cluster/RAPID. (external link)
- Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar et al. (2002). Storm-time protons observed at L-values below 1.25. (external link)
- Milan, S. E.; Lester, M.; Cowley, S. W. H. et al. (2002). Variations in polar cap area during two substorm cycles. (external link)
- Wild, J. A.; Cowley, S. W. H.; Milan, S. E. et al. (2002). The ionospheric response to flux transfer events: Simultaneous Cluster and global ground-based observations. (external link)
- Vontrat-Reberac, A.; Bosqued, J. M.; Taylor, M. G. G. T. et al. (2002). Cluster and ground-based observations of the cusp for variable IMF and quiet conditions. (external link)
- Oksavik, Kjellmar (2002). Remote sensing of the magnetopause. (external link)
- Oksavik, Kjellmar; Sørbø, Marita (2002). Dokumentarprogrammet inneholder et intervju i forbindelse med feltarbeid ved EISCAT Svalbard Radaren. (external link)
- Oksavik, Kjellmar (2002). Ung forskar frå Herøy utmerkar seg. (external link)
- Søraas, Finn; Oksavik, Kjellmar; Aarsnes, Kjell et al. (2002). Storm Time Equatorial Belt - an Image of Ring Current Behavior. (external link)
- Østgaard, Nikolai; Moen, Jøran; Mende, S. B. et al. (2002). Estimates of magnetotail reconnection rate based on IMAGE FUV and EISCAT measurements. (external link)
- 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. (external link)
- Lund, E. J.; Farrugia, C. J.; Alcayde, D. et al. (2002). Temporal and spatial variability of the cusp: A multi-spacecraft and ground-based case study. (external link)
2001
- Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar (2001). Rocket and satellite observations of energetic particles at high latitudes. (external link)
- Moen, Jøran Idar; Holtet, Jan Anstein; Pedersen, Arne et al. (2001). Cluster observations related to postnoon auroral activities. (external link)
- Moen, Jøran; Holtet, Jan Arnstein; Pedersen, Arne et al. (2001). Cluster boundary-layer measurements and optical observations at magnetically conjugate sites. (external link)
- Oksavik, Kjellmar; Søraas, Finn; Aksnes, Arve et al. (2001). The Svalbard archipelago - a window to CLUSTER. (external link)
- Oksavik, Kjellmar (2001). Space Physics in Norway. (external link)
- Moen, Jøran; Lockwood, Mike; Denig, William F. et al. (2001). EISCAT identification of the polar cap boundary and boundary layer dynamics. (external link)
- Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar (2001). A space-based DST-index estimated from low altitude proton observations. (external link)
- Moen, Jøran; Holtet, Jan Arnstein; Pedersen, Arne et al. (2001). Cluster boundary-layer measurements and optical observations at magnetic conjugate sites. (external link)
- Oksavik, Kjellmar (2001). Introduction to Norwegian Space Research. (external link)
- 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. (external link)
- Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar (2001). Ring current intensity estimated from low altitude proton observations. (external link)
- Oksavik, Kjellmar; Søraas, Finn; Moen, Jøran et al. (2001). Open and closed LLBL: Optical and particle signatures. (external link)
- Oksavik, Kjellmar; Fritz, Theodore A.; Zong, Quigang et al. (2001). Sounding the magnetopause surface in three-dimensions with Cluster/RAPID. (external link)
- Moen, Jøran; Holtet, Jan Arnstein; Pedersen, Arne et al. (2001). CLUSTER observations related to postnoon auroral arcs. (external link)
- Vontrat-Reberac, A.; Marchaudon, A.; Taylor, M. G. G. T. et al. (2001). Detailed cusp study for variable (mostly northward) IMF and quiet conditions. (external link)
- Oksavik, Kjellmar (2001). Forskersensasjon på Gruve 7 fjellet. Intervju med Jøran Moen (UiO), Herb Carlson (AFOSR/UiO) og Kjellmar Oksavik (UiB). (external link)
- Oksavik, Kjellmar (2001). Har vi klær for romvær?. (external link)
- Oksavik, Kjellmar (2001). Romvær til besvær. (external link)
- Moen, Jøran Idar; Lockwood, M.; Denig, W. F. et al. (2001). EISCAT identification of Polar Cap Boundary Layer Dynamics. (external link)
- Moen, Jøran Idar; Holtet, Jan Anstein; Pedersen, Arne et al. (2001). Cluster boundary-layer measurements and optical observations at magnetic conjugate sites. (external link)
2000
- 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. (external link)
- 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. (external link)
- Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar (2000). Ring current estimated from low altitude observations. (external link)
- Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar et al. (2000). Low altitude observations of precipitation electrons and protons. (external link)
- Oksavik, Kjellmar (2000). Romvær, hva er det?. (external link)
- Oksavik, Kjellmar (2000). Space Weather in the Arctic. (external link)
- Oksavik, Kjellmar (2000). Space Weather in the Artic. (external link)
- Oksavik, Kjellmar (2000). Romvær, hva er det?. (external link)
- Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar et al. (2000). Low altitude observations of precipitation electrons and protons. (external link)
- Søraas, Finn; Aarsnes, Kjell; Oksavik, Kjellmar (2000). Ring current estimated from low altitude observations. (external link)
- 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. (external link)
- 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. (external link)