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Karl M. Laundal

Researcher
  • E-mailKarl.Laundal@uib.no
  • Phone+47 55 58 27 06
  • Visitor Address
    Allegt. 55
  • Postal Address
    Postboks 7803
    5020 BERGEN

Laundal, K. M. & Østgaard, N. Persistent global proton aurora caused by high solar wind dynamic pressure. J. Geophys. Res. 113. doi:10.1029/2008JA013147 (2008).

Laundal, K. M. & Østgaard, N. Asymmetric auroral intensities in the Earth’s Northern and Southern hemispheres. Nature 460, 491–493 (2009).

Laundal, K. M., Østgaard, N., Snekvik, K. & Frey, H. U. Inter-hemispheric observations of emerging polar cap asymmetries. J. Geophys. Res. doi:10.1029/2009JA015160 (2010).

Laundal, K. M., Østgaard, N., Frey, H. U. & Weygand, J. M. Seasonal and interplanetary magnetic field-dependent polar cap contraction during substorm expansion phase. J. Geophys. Res. doi:10.1029/ 2010JA015910 (2010).

Laundal, K. M. & Gjerloev, J. W. What is the appropriate coordinate system for magnetometer data when analyzing ionospheric currents? J. Geophys. Res. doi:10.1002/2014JA020484 (2014).

Laundal, K. M., Haaland, S. E., Lehtinen, N., Gjerloev, J. W., Ostgaard, N., Tenfjord, P., Reistad, J. P., Snekvik, K., Milan, S. E., Ohtani, S. & Anderson, B. J. Birkeland current effects on high-latitude ground magnetic field perturbations. Geophys. Res. Lett. doi:10.1002/2015GL065776 (2015).

Laundal, K. M., Gjerloev, J. W., Østgaard, N., Reistad, J. P., Haaland, S., Snekvik, K., Tenfjord, P., Ohtani, S. & Milan, S. E. The impact of sunlight on high-latitude equivalent currents. J. Geophys. Res. 2015JA022236. issn: 2169-9402. doi:10.1002/2015JA022236 (2016).

Laundal, K. M., Cnossen, I., Milan, S. E., Haaland, S. E., Coxon, J., Pedatella, N. M., Förster, M. & Reistad, J. P. North-South asymmetries in Earth’s magnetic field – Effects on high-latitude geospace. Space Sci. Rev. doi:10.1007/s11214-016-0273-0 (2017).

Laundal, K. M. & Richmond, A. D. Magnetic coordinate systems. Space Sci. Rev. doi:10.1007/s11214- 016-0275-y (2017).

Laundal, K. M., Finlay, C. C. & Olsen, N. Sunlight effects on the 3D polar current system determined from low Earth orbit measurements. Earth Planets Space. doi:10.1186/s40623-016-0518-x (2016).

Laundal, K. M., Reistad, J. P., Finlay, C. C., Østgaard, N., Tenfjord, P. & Snekvik, K. Interplanetary magnetic field Bx component influence on horizontal and field-aligned currents in the ionosphere. J. Geophys. Res. doi:10.1002/2017JA024864 (2018).

Laundal, K. M., Finlay, C. C., Olsen, N. & Reistad, J. P. Solar wind and seasonal influence on ionospheric currents from Swarm and CHAMP measurements. J. Geophys. Res. doi:10.1029/2018JA025387 (2018).

Reistad, J. P., Østgaard, N., Tenfjord, P., Laundal, K. M., Snekvik, K., Haaland, S., Milan, S., Oksavik, K., Frey, H. & Grocott, A. Dynamic effects of restoring footpoint symmetry on closed magnetic field-lines. J. Geophys. Res. doi:10.1002/2015JA022058 (2016).
  
Østgaard, N., Humberset, B. K. & Laundal, K. M. Evolution of auroral asymmetries in the conjugate hemispheres during two substorms. Geophys. Res. Lett. doi:10.1029/2010GL046057 (2011).

Østgaard, N., Laundal, K. M., Juusola, L., Aasnes, A., Haaland, S. E. & Weygand, J. Interhemispherical asymmetry of substorm onset locations and the interplanetary magnetic field. Geophys. Res. Lett. doi:doi:10.1029/2011GL046767 (2011).

Østgaard, N. & Laundal, K. M. Auroral Asymmetries in the Conjugate Hemispheres and Interhemi- spheric Currents in Auroral Phenomenology and Magnetospheric Processes: Earth And Other Planets (American Geophysical Union, 2013), 99–112. isbn: 9781118670286. doi:10.1029/2011GM001190.

Snekvik, K., Tanskanen, E., Østgaard, N., Juusola, L., Laundal, K. M., Gordeev, E. I. & Borg, A. L. Changes in the magnetotail configuration before near-Earth reconnection. J. Geophys. Res. 117 (2012).

Grujic, K. G., Hegna, T. & Laundal, K. M. In Situ Monitoring of Growth Interfaces: A Review of Noninvasive Methods. JOM 64, 96–101. issn: 1047-4838 (2012).

Søraas, F., Laundal, K. M. & Usanova, M. Coincident particle and optical observations of nightside subauroral proton precipitation. J. Geophys. Res. 118, 1112–1122 (2013).

Reistad, J. P., Østgaard, N., Laundal, K. M. & Oksavik, K. On the non-conjugacy of nightside aurora and their generator mechanisms. J. Geophys. Res. doi:10.1002/jgra.50300 (2013).

Reistad, J. P., Østgaard, N., Laundal, K. M., Haaland, S., Tenfjord, P., Snekvik, K., Oksavik, K. & Milan, S. E. Intensity asymmetries in the dusk sector of the poleward auroral oval due to IMF Bx. J. Geophys. Res. doi:10.1002/2014JA020216 (2014).

Tenfjord, P., Østgaard, N., Snekvik, K., Laundal, K. M., Reistad, J. P., Haaland, S. E. & Milan, S. E. How the IMF By induces a By component in the closed magnetosphere and how it leads to asymmetric currents and convection patterns in the two hemispheres. J. Geophys. Res. (2015).

Østgaard, N., Reistad, J. P., Tenfjord, P., Laundal, K. M., Snekvik, K., Milan, S. E. & Haaland, S. E. Mechanisms that Produce Auroral Asymmetries in Conjugate Hemispheres in Auroral Dynamics and Space Weather (John Wiley & Sons, Inc, 2015), 131–143. isbn: 9781118978719. doi:10.1002/ 9781118978719.ch10.

Tenfjord, P., Østgaard, N., Strangeway, R. J., Haaland, S., Snekvik, K., Laundal, K. M., Reistad, J. P. & Milan, S. E. Magnetospheric response and reconfiguration times following IMF By reversal. J. Geophys. Res. doi:10.1002/2016JA023018 (2017).

Haaland, S., Lybekk, B., Maes, L., Laundal, K. M., Pedersen, A., Tenfjord, P., Ohma, A., Østgaard, N., Reistad, J. P. & Snekvik, K. North-south asymmetries in cold plasma density in the magnetotail lobes: Cluster observations. J. Geophys. Res. doi:10.1002/2016JA023404 (2017).

Snekvik, K., Østgaard, N., Tenfjord, P., Reistad, J. P., Laundal, K. M., Milan, S. E. & Haaland, S. E. Dayside and nightside magnetic field responses at 780 km altitude to dayside reconnection. J. Geophys. Res. doi:10.1002/2016JA023177 (2017).

Milan, S. E., Clausen, L. B. N., Coxon, J. C., Carter, J. A., Walach, M.-T., Laundal, K., Østgaard, N., Tenfjord, P., Reistad, J., Snekvik, K., Korth, H. & Anderson, B. J. Overview of Solar Wind– Magnetosphere–Ionosphere–Atmosphere Coupling and the Generation of Magnetospheric Currents. Space Sci Rev. doi:10.1007/s11214-017-0333-0 (2017).

Friis-Christensen, E., Finlay, C. C., Hesse, M. & Laundal, K. M. Magnetic Field Perturbations from Currents in the Dark Polar Regions During Quiet Geomagnetic Conditions. Space Sci Rev. doi:10. 1007/s11214-017-0332-1 (2017).

Tenfjord, P., Østgaard, N., Haaland, S., Snekvik, K., Laundal, K. M., Reistad, J. P., Strangeway, R. J., Milan, S. E., Hesse, M. & Ohma, A. How the IMF By induces a local By component during northward IMF Bz and characteristic timescales. J. Geophys. Res. 123. doi:10.1002/2018JA025186 (2018).

Journal articles
  • Laundal, Karl Magnus; Hatch, Spencer Mark; Moretto, Therese. 2019. Magnetic Effects of Plasma Pressure Gradients in the Upper F Region. Geophysical Research Letters. 46: 2355-2363. doi: 10.1029/2019GL081980
  • Reistad, Jone Peter; Laundal, Karl Magnus; Østgaard, Nikolai; Ohma, Anders; Haaland, Stein; Oksavik, Kjellmar; Milan, Stephen Eric. 2019. Separation and quantification of ionospheric convection sources: 1. A new technique. Journal of Geophysical Research - Space Physics. 1-15. doi: 10.1029/2019JA026634
  • Reistad, Jone Peter; Laundal, Karl Magnus; Østgaard, Nikolai; Ohma, Anders; Thomas, Evan G.; Haaland, Stein; Oksavik, Kjellmar; Milan, Stephen Eric. 2019. Separation and quantification of ionospheric convection sources: 2. The dipole tilt angle influence on reverse convection cells during northward IMF. Journal of Geophysical Research - Space Physics. 1-13. doi: 10.1029/2019JA026641
  • Burrell, Angeline G.; Halford, Alexa J.; Klenzing, Jeffrey H.; Stoneback, Russell A.; Morley, Steven K.; Annex, Andrew M.; Laundal, Karl Magnus; Kellerman, Adam C.; Stansby, David; Ma, Jerry. 2018. Snakes on a spaceship—An overview of Python in heliophysics. Journal of Geophysical Research - Space Physics. 123: 10,384-10,402. doi: 10.1029/2018JA025877
  • Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad; Laundal, Karl Magnus. 2018. Seasonal and solar cycle variations of thermally excited 630.0 nm emissions in the polar ionosphere. Journal of Geophysical Research - Space Physics. 123: 7029-7039. doi: 10.1029/2018JA025477
  • Laundal, Karl Magnus; Finlay, Christopher C.; Olsen, N; Reistad, Jone Peter. 2018. Solar Wind and Seasonal Influence on Ionospheric Currents From Swarm and CHAMP Measurements. Journal of Geophysical Research - Space Physics. 123: 4402-4429. doi: 10.1029/2018JA025387
  • Laundal, Karl Magnus; Reistad, Jone Peter; Finlay, Christopher C.; Østgaard, Nikolai; Tenfjord, Paul; Snekvik, Kristian; Ohma, Anders. 2018. Interplanetary Magnetic Field Bx Component Influence on Horizontal and Field-Aligned Currents in the Ionosphere. Journal of Geophysical Research - Space Physics. 123: 3360-3379. doi: 10.1002/2017JA024864
  • Milan, Stephen Eric; Carter, Jennifer Alyson; Sangha, Harneet; Laundal, Karl Magnus; Østgaard, Nikolai; Tenfjord, Paul; Reistad, Jone Peter; Snekvik, Kristian; Coxon, John C.; Korth, Haje; Anderson, Brian J. 2018. Timescales of dayside and nightside field-aligned current response to changes in solar wind-magnetosphere coupling. Journal of Geophysical Research - Space Physics. 123: 7307-7319. doi: 10.1029/2018JA025645
  • Ohma, Anders; Østgaard, Nikolai; Reistad, Jone Peter; Tenfjord, Paul; Laundal, Karl Magnus; Snekvik, Kristian; Haaland, Stein; Fillingim, Matthew. 2018. Evolution of Asymmetrically Displaced Footpoints During Substorms. Journal of Geophysical Research - Space Physics. 123: 10,030-10,063. doi: 10.1029/2018JA025869
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Ohma, Anders; Snekvik, Kristian; Tenfjord, Paul; Grocott, Adrian; Oksavik, Kjellmar; Milan, Steve; Haaland, Stein. 2018. Observations of asymmetries in ionospheric return flow during different levels of geomagnetic activity. Journal of Geophysical Research - Space Physics. 123: 4638-4651. doi: 10.1029/2017JA025051
  • Tenfjord, Paul; Østgaard, Nikolai; Haaland, Stein; Snekvik, Kristian; Laundal, Karl Magnus; Reistad, Jone Peter; Strangeway, Robert J.; Milan, Stephen Eric; Hesse, Michael; Ohma, Anders. 2018. How the IMF By Induces a Local By Component During Northward IMF Bz and Characteristic Timescales. Journal of Geophysical Research - Space Physics. 123: 3333-3348. Published 2018-03-31. doi: 10.1002/2018JA025186
  • Østgaard, Nikolai; Reistad, Jone Peter; Tenfjord, Paul; Laundal, Karl Magnus; Rexer, Theresa; Haaland, Stein; Snekvik, Kristian; Hesse, Michael; Milan, Stephen Eric; Ohma, Anders. 2018. The asymmetric geospace as displayed during the geomagnetic storm on 17 August 2001. Annales Geophysicae. 36: 1577-1596. doi: 10.5194/angeo-36-1577-2018
  • Friis-Christensen, Eigil; Finlay, Christopher C.; Hesse, Michael; Laundal, Karl Magnus. 2017. Magnetic field perturbations from currents in the dark polar regions during quiet geomagnetic conditions. Space Science Reviews. 206: 281-297. doi: 10.1007/s11214-017-0332-1
  • Haaland, Stein; Lybekk, Bjørn; Maes, Lukas; Laundal, Karl Magnus; Pedersen, Amund; Tenfjord, Paul; Ohma, Anders; Østgaard, Nikolai; Reistad, Jone Peter; Snekvik, Kristian. 2017. North-south asymmetries in cold plasma density in the magnetotail lobes: Cluster observations. Journal of Geophysical Research - Space Physics. 122: 136-149. doi: 10.1002/2016JA023404
  • Milan, Stephen Eric; Clausen, Lasse Boy Novock; Coxon, John Charles; Carter, Jenny A.; Walach, Maria Theresia; Laundal, Karl Magnus; Østgaard, Nikolai; Tenfjord, Paul Arne Riksheim; Reistad, Jone Peter; Snekvik, Kristian; Korth, Haje; Anderson, Brian J. 2017. Overview of solar wind - magnetosphere - ionosphere - atmosphere coupling and the generation of magnetospheric currents. Space Science Reviews. 206: 547-573. doi: 10.1007/s11214-017-0333-0
  • Snekvik, Kristian; Østgaard, Nikolai; Tenfjord, Paul; Reistad, Jone Peter; Laundal, Karl Magnus; Milan, Stephen Eric; Haaland, Stein. 2017. Dayside and nightside magnetic field responses at 780 km altitude to dayside reconnection. Journal of Geophysical Research - Space Physics. 122: 1670-1689. doi: 10.1002/2016JA023177
  • Laundal, Karl Magnus; Cnossen, Ingrid; Milan, Stephen Eric; Haaland, Stein; Coxon, John C.; Pedatella, Nick; Förster, Matthias; Reistad, Jone Peter. 2016. North–south asymmetries in Earth’s magnetic field effects on high-latitude geospace. Space Science Reviews. 206: 225-257. doi: 10.1007/s11214-016-0273-0
  • Laundal, Karl Magnus; Finlay, Christopher C.; Olsen, NIls. 2016. Sunlight effects on the 3D polar current system determined from low Earth orbit measurements. Earth Planets and Space. 68:142. doi: 10.1186/s40623-016-0518-x
  • Laundal, Karl Magnus; Gjerløv, Jesper; Østgaard, Nikolai; Reistad, Jone Peter; Haaland, Stein; Snekvik, Kristian; Tenfjord, Paul; Ohtani, Shin-ichi; Milan, Steve. 2016. The impact of sunlight on high-latitude equivalent currents. Journal of Geophysical Research - Space Physics. 121: 2715-2726. doi: 10.1002/2015JA022236
  • Laundal, Karl Magnus; Richmond, Arthur D. 2016. Magnetic coordinate systems. Space Science Reviews. Published ahead of print: 1-33. doi: 10.1007/s11214-016-0275-y
  • Reistad, Jone Peter; Østgaard, Nikolai; Tenfjord, Paul; Laundal, Karl Magnus; Snekvik, Kristian; Haaland, Stein; Milan, Steve; Oksavik, Kjellmar; Frey, Harald U.; Grocott, Adrian. 2016. Dynamic effects of restoring footpoint symmetry on closed magnetic field lines. Journal of Geophysical Research - Space Physics. 121: 3963-3977. doi: 10.1002/2015JA022058
  • Tenfjord, Paul Arne Riksheim; Østgaard, Nikolai; Strangeway, Robert J.; Haaland, Stein; Snekvik, Kristian; Laundal, Karl Magnus; Reistad, Jone Peter; Milan, Stephen Eric. 2016. Magnetospheric response and reconfiguration times following IMF By reversals. Journal of Geophysical Research - Space Physics. 122: 417-431. doi: 10.1002/2016JA023018
  • Østgaard, Nikolai; Reistad, Jone Peter; Tenfjord, Paul Arne Riksheim; Laundal, Karl Magnus; Snekvik, Kristian; Milan, Steve; Haaland, S. 2016. Mechanisms that Produce Auroral Asymmetries in Conjugate Hemispheres. Geophysical Monograph. 215. doi: 10.1002/9781118978719.ch10
  • Laundal, Karl Magnus; Haaland, Stein; Lehtinen, Nikolai; Gjerløv, Jesper; Østgaard, Nikolai; Tenfjord, Paul; Reistad, Jone Peter; Snekvik, Kristian; Milan, Steve; Ohtani, Shin-ichi; Anderson, Brian J. 2015. Birkeland current effects on high-latitude ground magnetic field perturbations. Geophysical Research Letters. 42: 7248-7254. doi: 10.1002/2015GL065776
  • Tenfjord, Paul; Østgaard, Nikolai; Snekvik, Kristian; Laundal, Karl Magnus; Reistad, Jone Peter; Haaland, Stein; Milan, Steve. 2015. How the IMF By induces a By component in the closed magnetosphere and how it leads to asymmetric currents and convection patternsin the two hemispheres. Journal of Geophysical Research - Space Physics. 120: 9368-9384. doi: 10.1002/2015JA021579
  • Laundal, Karl Magnus; Gjerløv, Jesper. 2014. What is the appropriate coordinate system for magnetometer data when analyzing ionospheric currents? Journal of Geophysical Research - Space Physics. 119: 8637-8647. doi: 10.1002/2014JA020484
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Haaland, Stein; Tenfjord, Paul; Snekvik, Kristian; Oksavik, Kjellmar; Milan, Steve. 2014. Intensity asymmetries in the dusk sector of the poleward auroral oval due to IMF Bx. Journal of Geophysical Research - Space Physics. 119: 9497-9507. doi: 10.1002/2014JA020216
  • Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus; Oksavik, Kjellmar. 2013. On the non-conjugacy of nightside aurora and their generator mechanisms. Journal of Geophysical Research - Space Physics. 118: 3394-3406. doi: 10.1002/jgra.50300
  • Søraas, Finn; Laundal, Karl Magnus; Usanova, Maria E. 2013. Coincident particle and optical observations of nightside subauroral proton precipitation. Journal of Geophysical Research - Space Physics. 118: 1112-1122. doi: 10.1002/jgra.50172
  • Østgaard, Nikolai; Laundal, Karl Magnus; Humberset, Beate Krøvel. 2013. Correction to 'Evolution of auroral asymmetries in the conjugate hemispheres during two substorms.'. Geophysical Research Letters. 40: 471-471. doi: 10.1029/2012GL055020
  • Grujic, Katarina; Hegna, Torunn; Laundal, Karl Magnus. 2012. In situ monitoring of growth interfaces: a review of noninvasive methods. JOM: The Member Journal of TMS. 64: 96-101. doi: 10.1007/s11837-011-0233-9
  • Snekvik, Kristian; Tanskanen, Eija Irene; Østgaard, Nikolai; Juusola, Liisa; Laundal, Karl Magnus; Gordeev, Evigini I.; Borg, Anette Lauen. 2012. Changes in the magnetotail configuration before near-Earth reconnection. Journal of Geophysical Research - Space Physics. 117. 12 pages. doi: 10.1029/2011JA017040
  • Østgaard, Nikolai; Laundal, Karl Magnus; Juusola, Liisa; Aasnes, A.; Haaland, S.; Weygand, James M. 2012. Correction to 'Interhemispherical asymmetry of substorm onset locations and the Interplanetary Magnetic Field.'. Geophysical Research Letters. 39.
  • Hegna, Torunn; Pettersson, Hans; Laundal, Karl Magnus; Grujic, Katarina. 2011. 3-D laser scanner system based on a galvanometer scan head for high temperature applications. Proceedings of SPIE, the International Society for Optical Engineering. 8082. 9 pages. doi: 10.1117/12.888985
  • Østgaard, Nikolai; Humberset, Beate Krøvel; Laundal, Karl Magnus. 2011. Evolution of auroral asymmetries in the conjugate hemispheres during two substorms. Geophysical Research Letters. 38. 6 pages. doi: 10.1029/2010GL046057
  • Østgaard, Nikolai; Laundal, Karl Magnus; Juusola, Liisa; Åsnes, Arne; Haaland, Stein; Weygand, James M. 2011. Interhemispherical asymmetry of substorm onset locations and the interplanetary magnetic field. Geophysical Research Letters. 38. 5 pages. doi: 10.1029/2011GL046767
  • Laundal, Karl Magnus; Østgaard, Nikolai; Frey, H. U.; Weygand, J. 2010. Seasonal and interplanetary magnetic field-dependent polar cap contraction during substorm expansion phase. Journal of Geophysical Research - Space Physics. 115: A11224. doi: 10.1029/2010JA015910
  • Laundal, Karl Magnus; Østgaard, Nikolai; Snekvik, Kristian; Frey, Harald U. 2010. Interhemispheric observations of emerging polar cap asymmetries. Journal of Geophysical Research - Space Physics. 115. 15 pages. doi: 10.1029/2009JA015160
  • Laundal, Karl Magnus; Østgaard, Nikolai. 2009. Asymmetric auroral intensities in the Earth's Northern and Southern hemispheres. Nature. 460: 491-493. doi: 10.1038/nature08154
  • Laundal, Karl Magnus; Østgaard, Nikolai. 2008. Persistent global proton aurora caused by high solar wind dynamic pressure. Journal of Geophysical Research. 113. 8 pages. doi: 10.1029/2008JA013147
Reports and theses
  • Laundal, Karl Magnus. 2010. Auroral Imaging as a Tracer of Global Magnetospheric Dynamics. Universitetet i Bergen, Universitetet i Bergen. 145 pages.
  • Laundal, Karl Magnus. 2007. Storm Time Observations of the Global Proton Aurora. Institutt for fysikk og teknologi. 104 pages.
Book sections
  • Ellingsen, Pål Gunnar; Baddeley, Lisa; Lorentzen, Dag Arne; Østgaard, Nikolai; Sigernes, Fred; Gjerloev, Jesper W.; Laundal, Karl Magnus; Tyssøy, Hilde Nesse; Strømme, Anja. 2016. Auroral research and the total solar eclipse. Part of Svalbard - Seeing the light, pages . In:
    • Windridge, Melanie. 2016. Aurora: in search of the Northern Lights. HarperCollins Publishers. 308 pages. ISBN: 9780008156091.

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