Univ. of Bergen : Dept. of Physics and Technology : Birkeland Centre for Space Science


Address:
Kjellmar Oksavik
Birkeland Centre for Space Science
Department of Physics and Technology
University of Bergen
P.B. 7803
NO-5020 Bergen
NORWAY
Mobile: (+47) 920 86 971
Office: (+47) 555 88 338

E-mail:
kjellmar.oksavik@uib.no 

Scientific Data - DataverseNO

K. Oksavik (2020), The University of Bergen Global Navigation Satellite System Data Collection, DataverseNO, https://doi.org/10.18710/AJ4S-X394.
* This data collection currently contains 65 sub data sets covering the years 2013-2020.

Journal Publications - Google Scholar

* My current/former Master/PhD students are underlined.
Accepted
2021
108) D. Zhang, Q.-H. Zhang, Y.-Z. Ma, K. Oksavik, L. R. Lyons, Y.-L. Zhang, B. Nanan, Z.-Y. Xing, J. Liu, M. Hairston, and X.-Y. Wang (2021),
Solar and geomagnetic activity impact on occurrence and spatial size of cold and hot polar cap patches,
Geophysical Research Letters, 48, doi.org/10.1029/2021GL094526
107) G. Branduardi-Raymont, M. Berthomier, Y. V. Bogdanova, J. A. Carter, M. Collier, A. Dimmock, M. Dunlop, R. C. Fear, C. Forsyth, B. Hubert, E. A. Kronberg, K. M. Laundal, M. Lester, S. Milan, K. Oksavik, N. Østgaard, M. Palmroth, F. Plaschke, F. S. Porter, I. J. Rae, A. Read, A. A. Samsonov, S. Sembay, Y. Shprits, D. G. Sibeck, B. Walsh, and M. Yamauchi (2021),
Exploring solar-terrestrial interactions via multiple imaging observers,
Experimental Astronomy, doi.org/10.1007/s10686-021-09784-y
106) Y. Wang, Z. Cao, Z.-Y. Xing, Q.-H. Zhang, P. T. Jayachandran, K. Oksavik, N. Balan, and K. Shiokawa (2021),
GPS scintillations and TEC variations in association with a polar cap arc,
Journal of Geophysical Research Space Physics, 126, doi.org/10.1029/2020JA028968
105) Q.-H. Zhang, Y.-L. Zhang, C. Wang, K. Oksavik, L. R. Lyons, M. Lockwood, H.-G. Yang, B.-B. Tang, J. I. Moen, Z.-Y. Xing, Y.-Z. Ma, X.-Y. Wang, Y.-F. Ning, and L.-D. Xia (2021),
A space hurricane over the Earth's polar ionosphere,
Nature Communications, 12, 1207, doi.org/10.1038/s41467-021-21459-y
  • Research Highlight in Nature on 26 February 2021
  • Highlighted by National Geographic on 23 March 2021
  • Worldwide attention in news media
  • 104) C. Moser, J. LaBelle, S. Hatch, J. I. Moen, A. Spicher, T. Takahashi, C.A. Kletzing, S. Bounds, K. Oksavik, F. Sigernes, and T. K. Yeoman (2021),
    The cusp as a VLF saucer source: First rocket observations of long-duration VLF saucers on the dayside,
    Geophysical Research Letters, 48, doi.org/10.1029/2020GL090747
    103) L. M. Bjoland, Y. Ogawa, U. P. Løvhaug, D. A. Lorentzen, S. M. Hatch, and K. Oksavik (2021),
    Electron density depletion region observed in the polar cap ionosphere,
    Journal of Geophysical Research Space Physics, 126, doi.org/10.1029/2020JA028432
    2020
    102) S. M. Hatch, S. Haaland, K. M. Laundal, T. Moretto, A. W. Yau, L. Bjoland, J. P. Reistad, A. Ohma, and K. Oksavik (2020),
    Seasonal and hemispheric asymmetries of F-region polar cap plasma density: Swarm and CHAMP observations,
    Journal of Geophysical Research Space Physics, 125, doi.org/10.1029/2020JA028084
    101) K. Herlingshaw, L. J. Baddeley, K. Oksavik, and D. A. Lorentzen (2020),
    A statistical study of polar cap flow channels and their IMF By dependence,
    Journal of Geophysical Research Space Physics, 125, doi.org/10.1029/2020JA028359
    100) Y.-Z. Ma, Q.-H. Zhang, P. T. Jayachandran, K. Oksavik, L. R. Lyons, Z.-Y. Xing, S.-Y. Zhou, M. Hairston, and Y. Wang (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 times,
    Journal of Geophysical Research Space Physics, 125, doi.org/10.1029/2019JA027538
    99) Q.-H. Zhang, Y.-L. Zhang, C. Wang, M. Lockwood, H.-G. Yang, B.-B. Tang, Z.-Y. Xing, K. Oksavik, L. R. Lyons, Y.-Z. Ma, Q.-G. Zong, J. I. Moen, and L.-D. Xia (2020),
    Multiple transpolar auroral arcs reveal insight about coupling processes in the Earth's magnetotail,
    Proc. Natl. Acad. Sci. U.S.A., 202000614; doi.org/10.1073/pnas.2000614117
    98) A. Fæhn Follestad, K. Herlingshaw, H. Ghadjari, D. J. Knudsen, K. A. McWilliams, J. I. Moen, A. Spicher, J. Wu, and K. Oksavik (2020),
    Dayside field aligned current impacts on ionospheric irregularities,
    Geophysical Research Letters, 47, doi.org/10.1029/2019GL086722
    97) A. Spicher, K. Deshpande, Y. Jin, K. Oksavik, M. D. Zettergren, L. B. N. Clausen, J. I. Moen, M. R. Hairston, and L. J. Baddeley (2020),
    On the production of ionospheric irregularities via Kelvin-Helmholtz instability associated with cusp flow channels,
    Journal of Geophysical Research Space Physics, 125, doi.org/10.1029/2019JA027734
    96) L. A. Jenner, A. G. Wood, G. D. Dorrian, K. Oksavik, T. K. Yeoman, A. R. Fogg, and A. J. Coster (2020),
    Plasma density gradients at the edge of polar ionospheric holes: the absence of phase scintillation,
    Annales Geophysicae, 38, 575-590, doi.org/10.5194/angeo-38-575-2020
    95) M. R. Lessard, B. Fritz, B. Sadler, I. Cohen, D. Kenward, N. Godbole, J. H. Clemmons, J. H. Hecht, K. A. Lynch, M. Harrington, T. M. Roberts, D. Hysell, G. Crowely, F. Sigernes, M. Syrjäsuo, P. Ellingson, N. Partamies, J. Moen, L. Clausen, K. Oksavik, and T. Yeoman (2020),
    Overview of the Rocket Experiment for Neutral Upwelling Sounding Rocket 2 (RENU2),
    Geophysical Research Letters, 47, doi.org/10.1029/2018GL081885
  • High attention in news media

  • 2019
    94) K. Herlingshaw, L. J. Baddeley, K. Oksavik, D. A. Lorentzen, and E. C. Bland (2019),
    A study of automatically detected flow channels in the polar cap ionosphere,
    Journal of Geophysical Research Space Physics, 124, 9430-9447, doi.org/10.1029/2019JA026916 PDF
    93) Y. Jin, J. I. Moen, A. Spicher, K. Oksavik, W. J. Miloch, L. B. N. Clausen, M. Pozoga, and Y. Saito (2019),
    Simultaneous Rocket and Scintillation Observations of Plasma Irregularities associated with a Reversed Flow Event in the Cusp Ionosphere,
    Journal of Geophysical Research Space Physics, 124, 7098-7111, doi.org/10.1029/2019JA026942 PDF
    92) D.-S. Han, T. Xu, Y. Jin, K. Oksavik, X.-C. Chen, J.-J. Liu, Q.-H. Zhang, L. Baddeley, and K. Herlingshaw (2019),
    Observational evidence for throat aurora being associated with magnetopause reconnection,
    Geophysical Research Letters, 46, 7113-7120, doi.org/10.1029/2019GL083593 PDF
    91) J. P. Reistad, K. M. Laundal, N. Østgaard, A. Ohma, S. Haaland, K. Oksavik, and S. E. Milan (2019),
    Separation and quantification of ionospheric convection sources: 1. A new technique,
    Journal of Geophysical Research Space Physics, 124, 6343-6357, doi.org/10.1029/2019JA026634 PDF
    90) J. P. Reistad, K. M. Laundal, N. Østgaard, A. Ohma, E. G. Thomas, S. Haaland, K. Oksavik, and S. E. Milan (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 Space Physics, 124, 6182-6194, doi.org/10.1029/2019JA026641 PDF

    2018
    89) B. S. R. Kunduri, J. B. H. Baker, J. M. Ruohoniemi, S. Sazykin, K. Oksavik, M. Maimaiti, P. J. Chi, and M. J. Engebretson (2018),
    Recent developments on inner magnetosphere-ionosphere convection,
    Journal of Geophysical Research Space Physics, 123, 7276-7282, doi.org/10.1029/2018JA025914 PDF
    88) Z. Katamzi-Joseph, A. L. Aruliah, K. Oksavik, J. B. Habarulema, K. Kauristie, and M. J. Kosch (2018),
    Multi-instrument observations of large-sale atmospheric gravity waves/traveling ionospheric disturbances associated with enhanced auroral activity over Svalbard,
    Advances in Space Research, 63, 270-281, doi.org/10.1016/j.asr.2018.08.042 PDF
    87) Y. Jin, and K. Oksavik (2018),
    GPS scintillations and losses of signal lock at high latitudes during the 2015 St. Patrick's Day storm,
    Journal of Geophysical Research Space Physics, 123, 7943-7957, doi.org/10.1029/2018JA025933 PDF
    86) B. S. R. Kunduri, J. B. H. Baker, J. M. Ruohoniemi, N. Nishitani, K. Oksavik, P. J. Erickson, A. J. Coster, S. G. Shepherd, W. A. Bristow, and E. S. Miller (2018),
    A new empirical model of the sub-auroral polarization stream,
    Journal of Geophysical Research Space Physics, 123, 7342-7357, doi.org/10.1029/2018JA025690 PDF
    85) Y.-Z. Ma, Q.-H. Zhang, Z.-Y. Xing, R. A. Heelis, K. Oksavik, and Y. Wang (2018),
    The ion/electron temperature characteristics of polar cap classical and hot patches and their influence on ion upflow,
    Geophysical Research Letters, 45, 8072-8080, doi.org/10.1029/2018GL079099 PDF
    84) N. K. Kwagala, K. Oksavik, D. A. Lorentzen, M. G. Johnsen, and K. M. Laundal (2018),
    Seasonal and Solar Cycle Variations of Thermally Excited 630.0 nm Emissions in the Polar Ionosphere,
    Journal of Geophysical Research Space Physics, 123, 7029-7039, doi.org/10.1029/2018JA025477 PDF
    83) J. P. Reistad, N. Østgaard, K. M. Laundal, A. Ohma, K. Snekvik, P. Tenfjord, A. Grocott, K. Oksavik, S. E. Milan, and S. Haaland (2018),
    Observations of Asymmetries in Ionospheric Return Flow During Different Levels of Geomagnetic Activity,
    Journal of Geophysical Research Space Physics, 123, 4638-4651, doi.org/10.1029/2017JA025051 PDF
    82) N. K. Kwagala, K. Oksavik, D. A. Lorentzen, and M. G. Johnsen (2018),
    How often do thermally excited 630.0 nm emissions occur in the polar ionosphere?,
    Journal of Geophysical Research Space Physics, 123, 698-710, doi.org/10.1002/2017JA024744 PDF

    2017
    81) I. Mann, K. Kauristi, R. Bamford, I. McCrea, J. Moen, K. Oksavik, M. Yamauchi, M. J. Gullikstad, and E. Turunen (2017),
    Challenges and Strategic Research Plans for Earth and Heliosphere: Research Infrastructures, Projects and Initiatives,
    Proceedings of the International Astronomical Union, 13(S335), 219-225. doi.org/10.1017/S1743921318000571 PDF
    80) D. Summers, R. Shi, M. J. Engebretson, K. Oksavik, J. W. Manweiler, and D. G. Mitchell (2017),
    Energetic proton spectra measured by the Van Allen Probes,
    Journal of Geophysical Research Space Physics, 122, 10129-10144, doi.org/10.1002/2017JA024484 PDF
    79) Y. Jin, J. I. Moen, K. Oksavik, A. Spicher, L. B. N. Clausen, and W. J. Miloch (2017),
    GPS scintillations associated with cusp dynamics and polar cap patches,
    Journal of Space Weather and Space Climate, 7, A23, doi.org/10.1051/swsc/2017022 PDF
    78) L. J. Baddeley, D. A. Lorentzen, N. Partamies, W. Denig, V. A. Pilipenko, K. Oksavik, X. Chen, and Y. Zhang (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 Space Physics, 122, 5591-5605, doi.org/10.1002/2016JA023427 PDF
    77) H. Kim, M. R. Lessard, S. L. Jones, K. A. Lynch, P. A. Fernandes, A. L. Aruliah, M. J. Engebretson, J. I. Moen, K. Oksavik, A. G. Yahnin, and T. K. Yeoman (2017),
    Simultaneous Observations of Traveling Convection Vortices: Ionosphere-Thermosphere Coupling,
    Journal of Geophysical Research Space Physics, 122, 4943-4959, doi.org/10.1002/2017JA023904 PDF
    76) X.-C. Chen, D.-S. Han, D. A. Lorentzen, K. Oksavik, J. I. Moen, and L. J. Baddeley (2017),
    Dynamic Properties of Throat Aurora Revealed by Simultaneous Ground and Satellite Observations,
    Journal of Geophysical Research Space Physics, 122, 3469-3486, doi.org/10.1002/2016JA023033 PDF
    75) N. K. Kwagala, K. Oksavik, D. A. Lorentzen, and M.G. Johnsen (2017),
    On the contribution of thermal excitation to the total 630.0 nm emissions in the northern cusp ionosphere,
    Journal of Geophysical Research Space Physics, 122, 1234-1245, doi.org/10.1002/2016JA023366 PDF

    2016
    74) P. Prikryl, R. Ghoddousi-Fard, J. M. Weygand, A. Viljanen, M. Connors, D. W. Danskin, P. T. Jayachandran, K. S. Jacobsen, Y. L. Andalsvik, E. G. Thomas, J. M. Ruohoniemi, T. Durgonics, K. Oksavik, Y. Zhang, E. Spanswick, M. Aquino, and V. Sreeja (2016),
    GPS phase scintillation at high latitudes during the geomagnetic storm of 17-18 March 2015,
    Journal of Geophysical Research Space Physics, 121, 10448-10465, doi.org/10.1002/2016JA023171 PDF
    73) C. van der Meeren, K. Oksavik, D. A. Lorentzen, L. J. Paxton, and L. B. N. Clausen (2016),
    Scintillation and irregularities from the nightside part of a sun-aligned polar cap arc,
    Journal of Geophysical Research Space Physics, 121, 5723-5736, doi.org/10.1002/2016JA022708 PDF
    72) X.-C. Chen, D. A. Lorentzen, J. I. Moen, K. Oksavik, L. J. Baddeley, and M. Lester (2016),
    F-region ionosphere effects on the mapping accuracy of SuperDARN HF radar echoes,
    Radio Science, 51, 490-506, doi.org/10.1002/2016RS005957 PDF
    71) Y. Jin, J. I. Moen, W. J. Miloch, L. B. N. Clausen, and K. Oksavik (2016),
    Statistical study of the GNSS phase scintillation associated with two types of auroral blobs,
    Journal of Geophysical Research Space Physics, 121, 4679-4697, doi.org/10.1002/2016JA022613 PDF
    70) J. P. Reistad, N. Østgaard, P. Tenfjord, K. M. Laundal, K. Snekvik, S. Haaland, S. E. Milan, K. Oksavik, H. U. Frey, and A. Grocott (2016),
    Dynamic effects of restoring footpoint symmetry on closed magnetic field-lines,
    Journal of Geophysical Research Space Physics, 121, 3963-3977, doi.org/10.1002/2015JA022058 PDF

    2015
    69) C. van der Meeren, K. Oksavik, D. A. Lorentzen, M. T. Rietveld, and L. B. N. Clausen (2015),
    Severe and localized GNSS scintillation at the poleward edge of the nightside auroral oval during intense substorm aurora,
    Journal of Geophysical Research Space Physics, 120, 10607-10621, doi.org/10.1002/2015JA021819 PDF
    68) M. I. Sandanger, L.-K. Glesnes Ødegaard, H. Nesse Tyssøy, J. Stadsnes, F. Søraas, K. Oksavik, and K. Aarsnes (2015),
    In flight calibration of NOAA POES proton detectors - derivation of the MEPED correction factors,
    Journal of Geophysical Research Space Physics, 120, 9578-9593, doi.org/10.1002/2015JA021388 PDF
    67) I. J. Cohen, M. R. Lessard, R. H. Varney, K. Oksavik, M. Zettergren, and K. A. Lynch (2015),
    Ion Upflow Dependence on Ionospheric Density and Solar Photoionization,
    Journal of Geophysical Research Space Physics, 120, 10039-10052, doi.org/10.1002/2015JA021523 PDF
    66) X.-C. Chen, D. A. Lorentzen, J. I. Moen, K. Oksavik, and L. J. Baddeley (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 Space Physics, 120, 9859-9874, doi.org/10.1002/2015JA021481 PDF
    65) K. Oksavik, C. van der Meeren, D. A. Lorentzen, L. J. Baddeley, and J. Moen (2015),
    Scintillation and loss of lock from poleward moving auroral forms in the cusp ionosphere,
    Journal of Geophysical Research Space Physics, 120, 9161-9175, doi.org/10.1002/2015JA021528 PDF
    64) I. McCrea, A. Aikio, L. Alfonsi, E. Belova, S. Buchert, M. Clilverd, N. Engler, B. Gustavsson, C. Heinselman, J. Kero, M. Kosch, H. Lamy, T. Leyser, Y. Ogawa, K. Oksavik, A. Pellinen-Wannberg, F. Pitout, M. Rapp, I. Stanislawska, and J. Vierinen (2015),
    The science case for the EISCAT_3D radar,
    Progress in Earth and Planetary Science, 2:21, doi.org/10.1186/s40645-015-0051-8 PDF
    63) M. J. Engebretson, J. L. Posch, J. R. Wygant, C. A. Kletzing, M. R. Lessard, C.-L. Huang, H. E. Spence, C. W. Smith, H. J. Singer, Y. Omura, R. B. Horne, G. D. Reeves, D. N. Baker, M. Gkioulidou, K. Oksavik, I. R. Mann, T. Raita, and K. Shiokawa (2015),
    Van Allen probes, NOAA, GOES and ground observations of an intense EMIC wave event extending over 12 hours in MLT,
    Journal of Geophysical Research Space Physics, 120, 5465-5488, doi.org/10.1002/2015JA021227 PDF

    2014
    62) J. P. Reistad, N. Østgaard, K. M. Laundal, S. Haaland, P. Tenfjord, K. Snekvik, K. Oksavik, and S. E. Milan (2014),
    Intensity asymmetries in the dusk sector of the poleward auroral oval due to IMF Bx,
    Journal of Geophysical Research Space Physics, 119, 9497-9507, doi.org/10.1002/2014JA020216 PDF
    61) C. van der Meeren, K. Oksavik, D. Lorentzen, J. I. Moen, V. Romano (2014),
    GPS scintillation and irregularities at the front of an ionization toungue in the nightside polar ionosphere,
    Journal of Geophysical Research Space Physics, 119, 8624-8636, doi.org/10.1002/2014JA020114 PDF
  • Highlighted on journal frontpage
  • 60) Y. Nishimura, L. R. Lyons, Y. Zou, K. Oksavik, J. I. Moen, L. B. Clausen, E. F. Donovan, V. Angelopoulos, K. Shiokawa, J. M. Ruohoniemi, N. Nishitani, K. A. McWilliams, and M. Lester (2014),
    Day-night coupling by a localized flow channel visualized by polar cap patch propagation,
    Geophysical Research Letters, 41, 3701-3709, doi.org/10.1002/2014GL060301 PDF

    2013
    59) H. C. Carlson, K. Oksavik, and J. I. Moen (2013),
    Thermally excited 630.0 nm O(1D) emission in the cusp: A frequent high-altitude transient signature,
    Journal of Geophysical Research Space Physics, 118, doi.org/10.1002/jgra.50516 PDF
    58) J. P. Reistad, N. Østgaard, K. M. Laundal, and K. Oksavik (2013),
    On the non-conjugacy of nightside aurora and their generator mechanisms,
    Journal of Geophysical Research Space Physics, 118, doi.org/10.1002/jgra.50300 PDF
    57) A. J. Ribeiro, J. M. Ruohoniemi, P. V. Ponomarenko, L. B. N. Clausen, J. B. H. Baker, R. A. Greenwald, K. Oksavik, and S. de Larquier (2013),
    A comparison of SuperDARN ACF fitting methods,
    Radio Science, 48, doi.org/10.1002/rds.20031 PDF
    56) M. J. Engebretson, T. K. Yeoman, K. Oksavik, F. Søraas, F. Sigernes, J. I. Moen, M. G. Johnsen, V. A. Pilipenko, J. L. Posch, M. R. Lessard, B. Lavraud, M. D. Hartinger, L. B. N. Clausen, T. Raita, and C. Stolle (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 Space Physics, 118, doi.org/10.1002/jgra.50291 PDF
    55) J. Moen, K. Oksavik, L. Alfonsi, Y. Daabakk, V. Romano, and L. Spogli (2013),
    Space weather challenges of the polar cap ionosphere,
    Journal of Space Weather and Space Climate, 3, A02, doi.org/10.1051/swsc/2013025 PDF

    2012
    54) K. Oksavik, J. Moen, M. Lester, T. A. Bekkeng, and J. K. Bekkeng (2012),
    In-situ measurements of plasma irregularity growth in the cusp ionosphere,
    Journal of Geophysical Research, 117, A11301, doi.org/10.1029/2012JA017835 PDF
    53) M. A. Young, M. Lessard, M. Engebretson, J. R. Woodroffe, and K. Oksavik (2012),
    Spectral enhancements associated with Pi1B events observed at high latitude,
    Journal of Geophysical Research, 117, A09314, doi.org/10.1029/2012JA017940 PDF
    52) R. C. Fear, S. E. Milan, and K. Oksavik (2012),
    Determining the axial direction of high-shear flux transfer events: Implications for models of FTE structure,
    Journal of Geophysical Research, 117, A09220, doi.org/10.1029/2012JA017831 PDF
    51) E. J. Lund, M. R. Lessard, F. Sigernes, D. A. Lorentzen, K. Oksavik, P. M. Kintner, K. A. Lynch, D. H. Huang, B. C. Zhang, H. G. Yang, and Y. Ogawa (2012),
    Electron temperature in the cusp as measured with the SCIFER-2 sounding rocket,
    Journal of Geophysical Research, 117, A06326, doi.org/10.1029/2011JA017404 PDF
    50) J. Moen, K. Oksavik, T. Abe, M. Lester, Y. Saito, T. A. Bekkeng, and K. S. Jacobsen (2012),
    First in-situ measurements of HF radar echoing targets,
    Geophysical Research Letters, 39, L07104, doi.org/10.1029/2012GL051407 PDF
    49) T. D. Borisova, N. F. Blagoveshchenskaya, A. S. Kalishin, K. Oksavik, L. Baddeley, and T. K. Yeoman (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, 55, 126-141, doi.org/10.1007/s11141-012-9353-5 PDF

    2011
    48) F. Sigernes, M. Dyrland, P. Brekke, E. K. Gjengedal, S. Chernouss, D. A. Lorentzen, K. Oksavik, and C. S. Deehr (2011),
    Real time auroral oval forecasting - SvalTrackII,
    Optica Pura y Aplicada (OPA), 44, 599-603 PDF
    47) F. Sigernes, M. Dyrland, P. Brekke, S. Chernouss, D. A. Lorentzen, K. Oksavik, and C. S. Deehr (2011),
    Two methods to forecast auroral displays,
    Journal of Space Weather and Space Climate, 1, A03, doi.org/10.1051/swsc/2011003 PDF
    46) K. Oksavik, J. I. Moen, E. H. Rekaa, H. C. Carlson, and M. Lester (2011),
    Reversed flow events in the cusp ionosphere detected by SuperDARN HF radars,
    Journal of Geophysical Research, 116, A12303, doi.org/10.1029/2011JA016788 PDF
    45) N. A. Frissell, J. B. H. Baker, J. M. Ruohoniemi, L. B. N. Clausen, Z. C. Kale, I. J. Rae, L. Kepko, K. Oksavik, R. A. Greenwald, and M. L. West (2011),
    First radar observations in the vicinity of the plasmapause of pulsed ionospheric flows generated by bursty bulk flows,
    Geophysical Research Letters, 38, L01103, doi.org/10.1029/2010GL045857 PDF

    2010
    44) D. A. Lorentzen, J. Moen, K. Oksavik, F. Sigernes, Y. Saito, and M. G. Johnsen (2010),
    In situ measurements of a newly created polar cap patch,
    Journal of Geophysical Research, 115, A12323, doi.org/10.1029/2010JA015710 PDF
    43) K. Oksavik, V. L. Barth, J. Moen, and M. Lester (2010),
    On the entry and transit of high-density plasma across the polar cap,
    Journal of Geophysical Research, 115, A12308, doi.org/10.1029/2010JA015817 PDF
    42) J. K. Burchill, D. J. Knudsen, J. H. Clemmons, K. Oksavik, R. F. Pfaff, C. T. Steigies, A. W. Yau, and T. K. Yeoman (2010),
    Thermal ion upflow in the cusp ionosphere and its dependence on soft electron energy flux,
    Journal of Geophysical Research, 115, A05206, doi.org/10.1029/2009JA015006 PDF

    2009
    41) Y. Ogawa, I. Häggström, S. C. Buchert, K. Oksavik, S. Nozawa, M. Hirahara, A. P. van Eyken, T. Aso, and R. Fujii (2009),
    On the source of the polar wind in the polar topside ionosphere: First results from the EISCAT Svalbard radar,
    Geophysical Research Letters, 36, L24103, doi.org/10.1029/2009GL041501 PDF
    40) M. I. Sandanger, F. Søraas, M. Sørbø, K. Aarsnes, K. Oksavik, and D. S. Evans (2009),
    Relativistic electron losses related to EMIC waves during CIR and CME storms,
    Journal of Atmospheric and Solar-Terrestrial Physics, 71, 1126-1144, doi.org/10.1016/j.jastp.2008.07.006 PDF

    2008
    39) P. C. Brandt, Y. Zheng, T. S. Sotirelis, K. Oksavik, and F. J. Rich (2008),
    The linkage between the ring current and the ionosphere system,
    In "Midlatitude ionospheric dynamics and disturbances", edited by P. M. Kintner, A. J. Coster, T. Fuller-Rowell, A. J. Mannucci, M. Mendillo, and R. Heelis,
    Geophysical Monograph Series, 181, 135-143, doi.org/10.1029/181GM13 PDF
    38) H. C. Carlson, K. Oksavik, and J. Moen (2008),
    On a new process for cusp irregularity production,
    Annales Geophysicae, 26, 2871-2885, doi.org/10.5194/angeo-26-2871-2008 PDF
    37) J. Moen, Y. Rinne, H. C. Carlson, K. Oksavik, R. Fujii, and H. Opgenoorth (2008),
    On the relationship between thin Birkeland current arcs and reversed flow channels in the winter cusp/cleft ionosphere,
    Journal of Geophysical Research, 113, A09220, doi.org/10.1029/2008JA013061 PDF
    36) R. A. Greenwald, K. Oksavik, R. Barnes, J. M. Ruohoniemi, J. Baker, and E. R. Talaat (2008),
    First radar measurements of ionospheric electric fields at sub-second temporal resolution,
    Geophysical Research Letters, 35, L03111, doi.org/10.1029/2007GL032164 PDF

    2007
    35) M. Sandanger, F. Søraas, K. Aarsnes, K. Oksavik, and D. S. Evans (2007),
    Loss of relativistic electrons: Evidence for pitch angle scattering by electromagnetic ion cyclotron waves excited by unstable ring current protons,
    Journal of Geophysical Research, 112, A12213, doi.org/10.1029/2006JA012138 PDF
    34) Y. Rinne, J. Moen, K. Oksavik, and H. C. Carlson (2007),
    Reversed flow events in the winter cusp ionosphere observed by the European Incoherent Scatter (EISCAT) Svalbard radar,
    Journal of Geophysical Research, 112, A10313, doi.org/10.1029/2007JA012366 PDF
    33) J. W. Gjerloev, R. A. Greenwald, C. L. Waters, K. Takahashi, D. Sibeck, K. Oksavik, R. Barnes, J. Baker, and J. M. Ruohoniemi (2007),
    Observations of Pi2 pulsations by the Wallops HF radar in association with substorm expansion,
    Geophysical Research Letters, 34, L20103, doi.org/10.1029/2007GL030492 PDF
    32) T. Pedersen, E. Mishin, and K. Oksavik (2007),
    Observations of structured optical emissions and particle precipitation equatorward of the traditional auroral oval,
    Journal of Geophysical Research, 112, A10208, doi.org/10.1029/2007JA012299 PDF
    31) C. Simon, J. Lilensten, J. Moen, J. M. Holmes, Y. Ogawa, K. Oksavik, and W. F. Denig (2007),
    TRANS4: a new coupled electron/proton transport code - comparison to observations above Svalbard using ESR, DMSP and optical measurements,
    Annales Geophysicae, 25 (3), 661-673, doi.org/10.5194/angeo-25-661-2007 PDF
    30) D. A. Lorentzen, P. M. Kintner, J. Moen, F. Sigernes, K. Oksavik, Y. Ogawa, and J. Holmes (2007),
    Pulsating dayside aurora in relation to ion upflow events during a northward interplanetary magnetic field (IMF) dominated by a strongly negative IMF By,
    Journal of Geophysical Research, 112, A03301, doi.org/10.1029/2006JA011757 PDF
    29) J. B. H. Baker, R. A. Greenwald. J. M. Ruohoniemi, K. Oksavik, J. W. Gjerloev, L. J. Paxton, and M. R. Hairston (2007),
    Observations of ionospheric convection from the Wallops SuperDARN radar at middle latitudes,
    Journal of Geophysical Research, 112, A01303, doi.org/10.1029/2006JA011982 PDF

    2006
    28) R. A. Greenwald, K. Oksavik, P. J. Erickson, F. D. Lind, J. M. Ruohoniemi, J. B. H. Baker, and J. W. Gjerloev (2006),
    Identification of the temperature gradient instability as the source of decameter-scale ionospheric irregularities on plasmapause field lines,
    Geophysical Research Letters, 33, L18105, doi.org/10.1029/2006GL026581 PDF
    27) J. Moen, H. C. Carlson, K. Oksavik, C. P. Nielsen, S. E. Pryse, H. R. Middleton, I. W. McCrea, and P. Gallop (2006),
    EISCAT observations of plasma patches at sub-auroral cusp latitudes,
    Annales Geophysicae, 24 (9), 2363-2374, doi.org/10.5194/angeo-24-2363-2006 PDF
    26) S. E. Pryse, R. W. Sims, J. Moen, and K. Oksavik (2006),
    Ionospheric signatures of the low-latitude boundary layer under conditions of northward IMF and small clock angle,
    Annales Geophysicae, 24 (8), 2169-2178, doi.org/10.5194/angeo-24-2169-2006 PDF
    25) K. Oksavik, R. A. Greenwald, J. M. Ruohoniemi, M. R. Hairston, L. J. Paxton, J. B. H. Baker, J. W. Gjerloev, and R. J. Barnes (2006),
    First observations of the temporal/spatial variation of the sub-auroral polarization stream from the SuperDARN Wallops HF radar,
    Geophysical Research Letters, 33, L12104, doi.org/10.1029/2006GL026256 PDF
    24) K. Oksavik, J. M. Ruohoniemi, R. A. Greenwald, J. B. H. Baker, J. Moen, H. C. Carlson, T. K. Yeoman, and M. Lester (2006),
    Observations of isolated polar cap patches by the European Incoherent Scatter (EISCAT) Svalbard and Super Dual Auroral Radar Network (SuperDARN) Finland radars,
    Journal of Geophysical Research, 111, A05310, doi.org/10.1029/2005JA011400 PDF
    23) M. Sørbø, F. Søraas, K. Aarsnes, K. Oksavik, and D. S. Evans (2006),
    Latitude distribution of vertically precipitating energetic neutral atoms observed at low altitudes,
    Geophysical Research Letters, 33, L06108, doi.org/10.1029/2005GL025240 PDF
    22) H. C. Carlson, J. Moen, K. Oksavik, C. P. Nielsen, I. W. McCrea, T. R. Pedersen, and P. Gallop (2006),
    Direct observations of injection events of subauroral plasma into the polar cap,
    Geophysical Research Letters, 33, L05103, doi.org/10.1029/2005GL025230 PDF
  • Highlighted by the Editor
  • 21) A. Aksnes, J. Stadsnes, N. Østgaard, G. A. Germany, K. Oksavik, R. R. Vondrak, A. Brekke, and U. P. Løvhaug (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,
    Journal of Geophysical Research, 111, A02301, doi.org/10.1029/2005JA011331 PDF

    2005
    20) M. Lockwood, J. Moen, A. P. van Eyken, J. A. Davies, K. Oksavik, and I. W. McCrea (2005),
    Motion of the dayside polar cap boundary during substorm cycles: I. Observations of pulses in the magnetopause reconnection rate,
    Annales Geophysicae, 23 (11), 3495-3511, doi.org/10.5194/angeo-23-3495-2005 PDF
    19) M. Lockwood, J. A. Davies, J. Moen, A. P. van Eyken, K. Oksavik, I. W. McCrea, and M. Lester (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,
    Annales Geophysicae, 23 (11), 3513-3532, doi.org/10.5194/angeo-23-3513-2005 PDF
    18) K. Oksavik, J. Moen, H. C. Carlson, R. A. Greenwald, S. E. Milan, M. Lester, W. F. Denig, and R. J. Barnes (2005),
    Multi-instrument mapping of the small-scale flow dynamics related to a cusp auroral transient,
    Annales Geophysicae, 23 (7), 2657-2670, doi.org/10.5194/angeo-23-2657-2005 PDF
    17) M. I. Sandanger, F. Søraas, K. Aarsnes, K. Oksavik, D. S. Evans, and M. S. Greer (2005),
    Proton injections into the ring current associated with Bz variations during HILDCAA events,
    In "The Inner Magnetosphere: Physics and Modeling", edited by T. I. Pulkkinen, N. A. Tsyganenko, and R. H. W. Friedel,
    Geophysical Monograph Series, 155, 249-255, doi.org/10.1029/155GM26 PDF
    16) F. Søraas, K. Aarsnes, D. V. Carlsen, K. Oksavik, and D. S. Evans (2005),
    Ring current behavior as revealed by energetic proton precipitation,
    In "The Inner Magnetosphere: Physics and Modeling", edited by T. I. Pulkkinen, N. A. Tsyganenko, and R. H. W. Friedel,
    Geophysical Monograph Series, 155, 237-247, doi.org/10.1029/155GM25 PDF
    15) N. Østgaard, J. Moen, S. B. Mende, H. U. Frey, T. J. Immel, P. Gallop, K. Oksavik, and M. Fujimoto (2005),
    Estimates of magnetotail reconnection rate based on IMAGE FUV and EISCAT measurements,
    Annales Geophysicae, 23 (1), 123-134, doi.org/10.5194/angeo-23-123-2005 PDF

    2004
    14) J. Moen, M. Lockwood, K. Oksavik, H. C. Carlson, W. F. Denig, A. P. van Eyken, and I. W. McCrea (2004),
    The dynamics and relationships of precipitation, temperature and convection boundaries in the dayside auroral ionosphere,
    Annales Geophysicae, 22 (6), 1973-1987, doi.org/10.5194/angeo-22-1973-2004 PDF
    13) J. Moen, K. Oksavik, and H. C. Carlson (2004),
    On the relationship between ion upflow events and cusp auroral transients,
    Geophysical Research Letters, 31, L11808, doi.org/10.1029/2004GL020129 PDF
    12) K. Oksavik, J. Moen, and H. C. Carlson (2004),
    High-resolution observations of the small-scale flow pattern associated with a poleward moving auroral form in the cusp,
    Geophysical Research Letters, 31, L11807, doi.org/10.1029/2004GL019838 PDF
  • Highlighted by the Editor
  • 11) H. C. Carlson Jr., K. Oksavik, J. Moen, and T. Pedersen (2004),
    Ionospheric patch formation: Direct measurements of the origin of a polar cap patch,
    Geophysical Research Letters, 31, L08806, doi.org/10.1029/2003GL018166 PDF
    10) K. Oksavik, F. Søraas, J. Moen, R. Pfaff, J. A. Davies, and M. Lester (2004),
    Simultaneous optical, CUTLASS HF radar, and FAST spacecraft observations: Signatures of boundary layer processes in the cusp,
    Annales Geophysicae, 22 (2), 511-525, doi.org/10.5194/angeo-22-511-2004 PDF
    9) F. Søraas, K. Aarsnes, K. Oksavik, M. I. Sandanger, D. S. Evans, and M. S. Greer (2004),
    Evidence for particle injection as the cause of Dst reduction during HILDCAA events,
    Journal of Atmospheric and Solar-Terrestrial Physics, 66, 177-186, doi.org/10.1016/j.jastp.2003.05.001 PDF
    8) Q.-G. Zong, T. A. Fritz, H. Spence, K. Oksavik, Z.-Y. Pu, A. Korth, and P. W. Daly (2004),
    Energetic particle sounding of the magnetopause: A contribution by Cluster/RAPID,
    Journal of Geophysical Research, 109, A04207, doi.org/10.1029/2003JA009929 PDF

    2003
    7) S. E. Milan, M. Lester, S. W. H. Cowley, K. Oksavik, M. Brittnacher, R. A. Greenwald, G. Sofko, and J.-P. Villain (2003),
    Variation in polar cap area during two substorm cycles,
    Annales Geophysicae, 21 (5), 1121-1140, doi.org/10.5194/angeo-21-1121-2003 PDF
    6) F. Søraas, K. Oksavik, K. Aarsnes, D. S. Evans, and M. S. Greer (2003),
    Storm time equatorial belt - an "image" of RC behavior,
    Geophysical Research Letters, 30 (2), 1052, doi.org/10.1029/2002GL015636 PDF

    2002
    5) H. C. Carlson, K. Oksavik, J. Moen, A. P. van Eyken, and P. Guio (2002),
    ESR mapping of polar-cap patches in the dark cusp,
    Geophysical Research Letters, 29 (10), 1386, doi.org/10.1029/2001GL014087 PDF
    4) K. Oksavik, T. A. Fritz, Q.-G. Zong, F. Søraas, and B. Wilken (2002),
    Three-dimensional energetic ion sounding of the magnetopause using Cluster/RAPID,
    Geophysical Research Letters, 29 (9), 1347, doi.org/10.1029/2001GL014265 PDF
    3) F. Søraas, K. Aarsnes, K. Oksavik, and D. S. Evans (2002),
    Ring current intensity estimated from low-altitude proton observations,
    Journal of Geophysical Research, 107 (A7), 1149, doi.org/10.1029/2001JA000123 PDF

    2001
    2) J. Moen, J. A. Holtet, A. Pedersen, B. Lybekk, K. Svenes, K. Oksavik, W. F. Denig, E. Lucek, F. Søraas, and M. André (2001),
    Cluster boundary layer measurements and optical observations at magnetically conjugate sites,
    Annales Geophysicae, 19 (10-12), 1655-1668, doi.org/10.5194/angeo-19-1655-2001 PDF

    2000
    1) K. Oksavik, F. Søraas, J. Moen, and W. J. Burke (2000),
    Optical and particle signatures of magnetospheric boundary layers near magnetic noon: Satellite and ground-based observations,
    Journal of Geophysical Research, 105 (A12), 27555-27568, doi.org/10.1029/1999JA000237 PDF

    Doctor and Master Thesis


    K. Oksavik,
    A study of temporal and spatial variations in the polar cusp/cleft region using multi-instrument techniques, Doctor Scientiarum Thesis, ISBN 82-497-0127-5, Department of Physics, University of Bergen, 2002.
  • DoctorThesis.pdf (9.4 MB)
  • K. Oksavik,
    High-Latitude Boundary Phenomena and Magnetospheric Processes During the January 9-12 1997 CME Event: NOAA-12, Wind and Groundbased Observations, Candidatus Scientiarum Thesis, Department of Physics, University of Bergen, 1998.
  • MasterThesis.pdf (21.2 MB)

  • Last updated:
    Kjellmar Oksavik