Research
I am a researcher and group leader at the University in Bergen in Norway. I lead the group Dynamics of the Asymmetric Geospace at the Birkeland Centre for Space Science.
My group and I have worked for many years to understand the dynamics of the asymmetric geospace by investigating a wide range of observations and simulations. In recent years, as part of two projects funded by the Trond Mohn Foundation and by the Reserach Council of Norway, we have developed new techniques for combining data to map the electrodynamics in the ionosphere. We are also heavily involved in the Electrojet Zeeman Imaging Explorer, a NASA satellite mission, planned to launch in 2024, which will observe magnetic fields and electric currents in a new way.
Here are some links for more information about me and my research:
- An article about my research at uib.no
- Web page for the Dynamics of the Asymmetric Geospace group
- Web page for the Trond Mohn Foundation project What Shapes Space
- Code for the Local mapping of ionospheric electrodynamics (Lompe) technique on GitHub
- Web interface and Python code for the AMPS model, an empirical model of ionospheric currents and magnetic fields developed with funding from ESA Swarm DISC
- EZIE webpage
Publications
Academic article
- Gowtam, V. Sai; Connor, Hyunju; Kunduri, Bharat S. R. et al. (2024). Calculating the High-Latitude Ionospheric Electrodynamics Using a Machine Learning-Based Field-Aligned Current Model. (external link)
- Walker, Simon; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2024). A Comparison of Auroral Oval Proxies With the Boundaries of the Auroral Electrojets. (external link)
- Madelaire, Michael; Laundal, Karl Magnus; Hatch, Spencer Mark et al. (2024). Estimating the Ionospheric Induction Electric Field Using Ground Magnetometers. (external link)
- Hatch, Spencer Mark; Vanhamäki, Heikki; Laundal, Karl Magnus et al. (2024). Does high-latitude ionospheric electrodynamics exhibit hemispheric mirror symmetry?. (external link)
- Ohma, Anders; Laundal, Karl Magnus; Madelaire, Michael et al. (2024). Robust Estimates of Spatiotemporal Variations in the Auroral Boundaries Derived From Global UV Imaging. (external link)
- Decotte, Margot Emilie; Laundal, Karl Magnus; Hatch, Spencer Mark et al. (2024). Occurrence Probability of Magnetic Field Disturbances Measured With Swarm: Mapping the Dynamic Magnetosphere-Ionosphere Coupling. (external link)
- Elhawary, Reham Zakaria Ahmed Mohamed; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2024). How Do Substorms Influence Hemispheric Asymmetries in Equivalent Currents?. (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)
- Laundal, Karl Magnus; Hatch, Spencer Mark; Reistad, Jone Peter et al. (2024). How the Ionosphere Responds Dynamically to Magnetospheric Forcing. (external link)
- Walker, Simon; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2024). The Ionospheric Leg of the Substorm Current Wedge: Combining Iridium and Ground Magnetometers. (external link)
- Gasparini, Sara; Hatch, Spencer Mark; Reistad, Jone Peter et al. (2024). A Quantitative Analysis of the Uncertainties on Reconnection Electric Field Estimates Using Ionospheric Measurements. (external link)
- van Hazendonk, Charlotte Maartje; Baddeley, Lisa; Laundal, Karl Magnus et al. (2024). Detection and Energy Dissipation of ULF Waves in the Polar Ionosphere: A Case Study Using the EISCAT Radar. (external link)
- Oliveira, Denny M.; Allen, Robert C.; Alves, Livia R. et al. (2024). Predicting Interplanetary Shock Occurrence for Solar Cycle 25: Opportunities and Challenges in Space Weather Research. (external link)
- Gasparini, Sara; Kepko, L.; Laundal, Karl Magnus (2024). Quantifying the Mesoscale Contribution to FACs During a Magnetospheric Substorm. (external link)
- Ohma, Anders; Madelaire, Michael; Laundal, Karl Magnus et al. (2023). Background removal from global auroral images: Data-driven dayglow modeling. (external link)
- Walker, Simon; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2023). Statistical Temporal Variations in the Auroral Electrojet Estimated With Ground Magnetometers in Fennoscandia. (external link)
- Kloss, Clemens; Finlay, Christopher C; Laundal, Karl Magnus et al. (2023). Polar ionospheric currents and high temporal resolution geomagnetic field models. (external link)
- Decotte, Margot Emilie; Laundal, Karl Magnus; Hatch, Spencer Mark et al. (2023). Auroral Oval Morphology: Dawn-Dusk Asymmetry Partially Induced by Earth's Rotation. (external link)
- Madelaire, Michael; Laundal, Karl Magnus; Gjerløv, Jesper et al. (2023). Spatial Resolution in Inverse Problems: The EZIE Satellite Mission. (external link)
- Elhawary, Reham Zakaria Ahmed Mohamed; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2023). Substorm Impact on Dayside Ionospheric Currents. (external link)
- Madelaire, Michael; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2022). Geomagnetic Response to Rapid Increases in Solar Wind Dynamic Pressure: Event Detection and Large Scale Response. (external link)
- Laundal, Karl Magnus; Madelaire, Michael; Ohma, Anders et al. (2022). The relationship between interhemispheric asymmetries in polar ionospheric convection and the magnetic field line footpoint displacement field. (external link)
- Madelaire, Michael; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2022). Transient high latitude geomagnetic response to rapid increases in solar wind dynamic pressure. (external link)
- Ohma, Anders; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2022). Evolution of IMF By induced asymmetries during substorms: Superposed epoch analysis at geosynchronous orbit. (external link)
- Hatch, Spencer Mark; Laundal, Karl Magnus; Reistad, Jone Peter (2022). Testing the mirror symmetry of Birkeland and ionospheric currents with respect to magnetic latitude, dipole tilt angle, and IMF B <inf>y</inf>. (external link)
- Hovland, Amalie Øie; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2022). The Lompe code: A Python toolbox for ionospheric data analysis. (external link)
- Laundal, Karl Magnus; Reistad, Jone Peter; Hatch, Spencer Mark et al. (2022). Local Mapping of Polar Ionospheric Electrodynamics. (external link)
- Elhawary, Reham Zakaria Ahmed Mohamed; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2022). Possible Ionospheric Influence on Substorm Onset Location. (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)
- Ohma, Anders; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2021). Evolution of IMF By Induced Asymmetries: The Role of Tail Reconnection. (external link)
- Reistad, Jone Peter; Laundal, Karl Magnus; Østgaard, Nikolai et al. (2021). Quantifying the Lobe Reconnection Rate During Dominant IMF By Periods and Different Dipole Tilt Orientations . (external link)
- Laundal, Karl Magnus; Yee, J.H.; Merkin, V.G. et al. (2021). Electrojet Estimates From Mesospheric Magnetic Field Measurements. (external link)
- Branduardi-Raymont, Graziella; Berthomier, M; Bogdanova, Y. V. et al. (2021). Exploring solar-terrestrial interactions via multiple imaging observers. (external link)
- Hatch, Spencer Mark; Moretto, Therese; Lynch, Kristina A. et al. (2020). The Relationship Between Cusp Region Ion Outflows and East‐West Magnetic Field Fluctuations at 4,000‐km Altitude. (external link)
- Reistad, Jone Peter; Laundal, Karl Magnus; Ohma, Anders et al. (2020). An Explicit IMF B 𝑦 Dependence on Solar Wind-Magnetosphere Coupling. (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)
- Laundal, Karl Magnus; Reistad, Jone Peter; Hatch, Spencer Mark et al. (2020). Time-scale dependence of solar wind-based regression models of ionospheric electrodynamics. (external link)
- Ohma, Anders; Østgaard, Nikolai; Reistad, Jone Peter et al. (2019). Observations of asymmetric lobe convection for weak and strong tail activity. (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)
- Laundal, Karl Magnus; Hatch, Spencer Mark; Moretto, Therese (2019). Magnetic Effects of Plasma Pressure Gradients in the Upper F Region. (external link)
- Pitkänen, Timo; Kullen, Anita; Laundal, Karl Magnus et al. (2019). IMF By Influence on Magnetospheric Convection in Earth's Magnetotail Plasma Sheet . (external link)
- Tenfjord, Paul; Østgaard, Nikolai; Haaland, Stein et al. (2018). How the IMF By Induces a Local By Component During Northward IMF Bz and Characteristic Timescales. (external link)
- Laundal, Karl Magnus; Finlay, Christopher C.; Olsen, N et al. (2018). Solar Wind and Seasonal Influence on Ionospheric Currents From Swarm and CHAMP Measurements. (external link)
- Ohma, Anders; Østgaard, Nikolai; Reistad, Jone Peter et al. (2018). Evolution of Asymmetrically Displaced Footpoints During Substorms. (external link)
- Burrell, Angeline G.; Halford, Alexa J.; Klenzing, Jeffrey H. et al. (2018). Snakes on a spaceship—An overview of Python in heliophysics. (external link)
- Østgaard, Nikolai; Reistad, Jone Peter; Tenfjord, Paul et al. (2018). The asymmetric geospace as displayed during the geomagnetic storm on 17 August 2001. (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)
- Milan, Stephen Eric; Carter, Jennifer Alyson; Sangha, Harneet et al. (2018). Timescales of dayside and nightside field-aligned current response to changes in solar wind-magnetosphere coupling. (external link)
- Laundal, Karl Magnus; Reistad, Jone Peter; Finlay, Christopher C. et al. (2018). Interplanetary Magnetic Field Bx Component Influence on Horizontal and Field-Aligned Currents in the Ionosphere. (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)
- Snekvik, Kristian; Østgaard, Nikolai; Tenfjord, Paul et al. (2017). Dayside and nightside magnetic field responses at 780 km altitude to dayside reconnection. (external link)
- Haaland, Stein; Lybekk, Bjørn; Maes, Lukas et al. (2017). North-south asymmetries in cold plasma density in the magnetotail lobes: Cluster observations. (external link)
- Friis-Christensen, Eigil; Finlay, Christopher C.; Hesse, Michael et al. (2017). Magnetic field perturbations from currents in the dark polar regions during quiet geomagnetic conditions. (external link)
- Milan, Stephen Eric; Clausen, Lasse Boy Novock; Coxon, John Charles et al. (2017). Overview of solar wind - magnetosphere - ionosphere - atmosphere coupling and the generation of magnetospheric currents. (external link)
- Laundal, Karl Magnus; Richmond, Arthur D. (2016). Magnetic coordinate systems. (external link)
- Laundal, Karl Magnus; Finlay, Christopher C.; Olsen, NIls (2016). Sunlight effects on the 3D polar current system determined from low Earth orbit measurements. (external link)
- Tenfjord, Paul Arne Riksheim; Østgaard, Nikolai; Strangeway, Robert J. et al. (2016). Magnetospheric response and reconfiguration times following IMF By reversals. (external link)
- Østgaard, Nikolai; Reistad, Jone Peter; Tenfjord, Paul Arne Riksheim et al. (2016). Mechanisms that Produce Auroral Asymmetries in Conjugate Hemispheres. (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)
- Laundal, Karl Magnus; Gjerløv, Jesper; Østgaard, Nikolai et al. (2016). The impact of sunlight on high-latitude equivalent currents. (external link)
- Laundal, Karl Magnus; Haaland, Stein; Lehtinen, Nikolai et al. (2015). Birkeland current effects on high-latitude ground magnetic field perturbations. (external link)
- Tenfjord, Paul; Østgaard, Nikolai; Snekvik, Kristian et al. (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. (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)
- Laundal, Karl Magnus; Gjerløv, Jesper (2014). What is the appropriate coordinate system for magnetometer data when analyzing ionospheric currents?. (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)
- Søraas, Finn; Laundal, Karl Magnus; Usanova, Maria E. (2013). Coincident particle and optical observations of nightside subauroral proton precipitation. (external link)
- Snekvik, Kristian; Tanskanen, Eija Irene; Østgaard, Nikolai et al. (2012). Changes in the magnetotail configuration before near-Earth reconnection. (external link)
- Østgaard, Nikolai; Laundal, Karl Magnus; Juusola, Liisa et al. (2012). Correction to 'Interhemispherical asymmetry of substorm onset locations and the Interplanetary Magnetic Field.'. (external link)
- Østgaard, Nikolai; Humberset, Beate Krøvel; Laundal, Karl Magnus (2011). Evolution of auroral asymmetries in the conjugate hemispheres during two substorms. (external link)
- Østgaard, Nikolai; Laundal, Karl Magnus; Juusola, Liisa et al. (2011). Interhemispherical asymmetry of substorm onset locations and the interplanetary magnetic field. (external link)
- Hegna, Torunn; Pettersson, Hans; Laundal, Karl Magnus et al. (2011). 3-D laser scanner system based on a galvanometer scan head for high temperature applications. (external link)
- Laundal, Karl Magnus; Østgaard, Nikolai; Frey, H. U. et al. (2010). Seasonal and interplanetary magnetic field-dependent polar cap contraction during substorm expansion phase. (external link)
- Laundal, Karl Magnus; Østgaard, Nikolai; Snekvik, Kristian et al. (2010). Interhemispheric observations of emerging polar cap asymmetries. (external link)
- Laundal, Karl Magnus; Østgaard, Nikolai (2009). Asymmetric auroral intensities in the Earth's Northern and Southern hemispheres. (external link)
- Laundal, Karl Magnus; Østgaard, Nikolai (2008). Persistent global proton aurora caused by high solar wind dynamic pressure. (external link)
See a complete overview of publications in Cristin.
A complete list of my publications can be found at Google Scholar