Vitenskapelig artikkel

• Karl Magnus Laundal; Andreas Sæther Skeidsvoll; Beatrice Annemone Popescu Braileanu et al. (2025). Global inductive magnetosphere-ionosphere-thermosphere coupling. (ekstern lenke)
• Sara Gasparini; L. Kepko; K. A. Sorathia et al. (2025). A New Approach to Data‐Model Comparisons: Using MAGE and Lompe to Unravel Ionosphere‐Magnetosphere Electrodynamics. (ekstern lenke)
• Spencer Mark Hatch; Stein Haaland; Karl Magnus Laundal et al. (2020). Seasonal and Hemispheric Asymmetries of F Region Polar Cap Plasma Density: Swarm and CHAMP Observations. (ekstern lenke)
• Jone Peter Reistad; Karl Magnus Laundal; Nikolai Østgaard et al. (2021). Quantifying the Lobe Reconnection Rate During Dominant IMF By Periods and Different Dipole Tilt Orientations. (ekstern lenke)
• Graziella Branduardi-Raymont; M Berthomier; Y. V. Bogdanova et al. (2021). Exploring solar-terrestrial interactions via multiple imaging observers. (ekstern lenke)
• V. Sai Gowtam; Hyunju Connor; Bharat S. R. Kunduri et al. (2024). Calculating the High-Latitude Ionospheric Electrodynamics Using a Machine Learning-Based Field-Aligned Current Model. (ekstern lenke)
• Reham Zakaria Ahmed Mohamed Elhawary; Karl Magnus Laundal; Jone Peter Reistad et al. (2022). Possible Ionospheric Influence on Substorm Onset Location. (ekstern lenke)
• Angeline G. Burrell; Alexa J. Halford; Jeffrey H. Klenzing et al. (2018). Snakes on a spaceship—An overview of Python in heliophysics. (ekstern lenke)
• Karl Magnus Laundal; Jesper Gjerløv (2014). What is the appropriate coordinate system for magnetometer data when analyzing ionospheric currents?. (ekstern lenke)
• Stephen Eric Milan; Jennifer Alyson Carter; Harneet Sangha et al. (2018). Timescales of dayside and nightside field-aligned current response to changes in solar wind-magnetosphere coupling. (ekstern lenke)
• Habtamu W. Tesfaw; Heikki Vanhamäki; Ilkka Virtanen et al. (2025). Modeling Regional Electric Field Using EISCAT3D Observations. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2014). Intensity asymmetries in the dusk sector of the poleward auroral oval due to IMF Bx. (ekstern lenke)
• Karl Magnus Laundal; Jone Peter Reistad; Spencer Mark Hatch et al. (2020). Time-scale dependence of solar wind-based regression models of ionospheric electrodynamics. (ekstern lenke)
• Karl Magnus Laundal; Stein Haaland; Nikolai Lehtinen et al. (2015). Birkeland current effects on high-latitude ground magnetic field perturbations. (ekstern lenke)
• Jone Peter Reistad; Karl Magnus Laundal; Anders Ohma et al. (2020). An Explicit IMF B 𝑦 Dependence on Solar Wind-Magnetosphere Coupling. (ekstern lenke)
• Simon Walker; Karl Magnus Laundal; Jone Peter Reistad et al. (2023). Statistical Temporal Variations in the Auroral Electrojet Estimated With Ground Magnetometers in Fennoscandia. (ekstern lenke)
• Spencer Mark Hatch; Heikki Vanhamäki; Karl Magnus Laundal et al. (2024). Does high-latitude ionospheric electrodynamics exhibit hemispheric mirror symmetry?. (ekstern lenke)
• Denny M. Oliveira; Robert C. Allen; Livia R. Alves et al. (2024). Predicting Interplanetary Shock Occurrence for Solar Cycle 25: Opportunities and Challenges in Space Weather Research. (ekstern lenke)
• Devin Ray Huyghebaert; Björn Johan Gustavsson; Juha-Pekka Vierinen et al. (2025). Simulation of interferometric imaging with EISCAT_3D for fine-scale in-beam incoherent scatter spectra measurements. (ekstern lenke)
• Anders Ohma; Karl Magnus Laundal; Michael Madelaire et al. (2024). Robust Estimates of Spatiotemporal Variations in the Auroral Boundaries Derived From Global UV Imaging. (ekstern lenke)
• Charlotte Maartje van Hazendonk; Lisa Baddeley; Karl Magnus Laundal et al. (2024). Detection and Energy Dissipation of ULF Waves in the Polar Ionosphere: A Case Study Using the EISCAT Radar. (ekstern lenke)
• Sara Gasparini; Spencer Mark Hatch; Jone Peter Reistad et al. (2024). A Quantitative Analysis of the Uncertainties on Reconnection Electric Field Estimates Using Ionospheric Measurements. (ekstern lenke)
• Simon Walker; Karl Magnus Laundal; Jone Peter Reistad et al. (2024). The Ionospheric Leg of the Substorm Current Wedge: Combining Iridium and Ground Magnetometers. (ekstern lenke)
• Anders Ohma; Michael Madelaire; Karl Magnus Laundal et al. (2023). Background removal from global auroral images: Data-driven dayglow modeling. (ekstern lenke)
• Paul Arne Riksheim Tenfjord; Nikolai Østgaard; Robert J. Strangeway et al. (2016). Magnetospheric response and reconfiguration times following IMF By reversals. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2018). Observations of asymmetries in ionospheric return flow during different levels of geomagnetic activity. (ekstern lenke)
• Simon Walker; Karl Magnus Laundal; Jone Peter Reistad et al. (2024). A Comparison of Auroral Oval Proxies With the Boundaries of the Auroral Electrojets. (ekstern lenke)
• Anders Ohma; Nikolai Østgaard; Karl Magnus Laundal et al. (2021). Evolution of IMF By Induced Asymmetries: The Role of Tail Reconnection. (ekstern lenke)
• Spencer Mark Hatch; Therese Moretto; Kristina A. Lynch et al. (2020). The Relationship Between Cusp Region Ion Outflows and East‐West Magnetic Field Fluctuations at 4,000‐km Altitude. (ekstern lenke)
• Paul Tenfjord; Nikolai Østgaard; Kristian Snekvik 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. (ekstern lenke)
• Karl Magnus Laundal; Nikolai Østgaard; H. U. Frey et al. (2010). Seasonal and interplanetary magnetic field-dependent polar cap contraction during substorm expansion phase. (ekstern lenke)
• Stein Haaland; Bjørn Lybekk; Lukas Maes et al. (2017). North-south asymmetries in cold plasma density in the magnetotail lobes: Cluster observations. (ekstern lenke)
• Eigil Friis-Christensen; Christopher C. Finlay; Michael Hesse et al. (2017). Magnetic field perturbations from currents in the dark polar regions during quiet geomagnetic conditions. (ekstern lenke)
• Stephen Eric Milan; Lasse Boy Novock Clausen; John Charles Coxon et al. (2017). Overview of solar wind - magnetosphere - ionosphere - atmosphere coupling and the generation of magnetospheric currents. (ekstern lenke)
• Karl Magnus Laundal; Spencer Mark Hatch; Therese Moretto (2019). Magnetic Effects of Plasma Pressure Gradients in the Upper F Region. (ekstern lenke)
• Reham Zakaria Ahmed Mohamed Elhawary; Karl Magnus Laundal; Jone Peter Reistad et al. (2023). Substorm Impact on Dayside Ionospheric Currents. (ekstern lenke)
• Margot Emilie Decotte; Karl Magnus Laundal; Spencer Mark Hatch et al. (2023). Auroral Oval Morphology: Dawn-Dusk Asymmetry Partially Induced by Earth's Rotation. (ekstern lenke)
• Daniel Billett; R. Rohel; Carley J. Martin et al. (2025). The Fast Borealis Ionosphere: High Time-Resolution Mapping of Polar Ionospheric Flows With SuperDARN. (ekstern lenke)
• Karl Magnus Laundal; Nikolai Østgaard (2009). Asymmetric auroral intensities in the Earth's Northern and Southern hemispheres. (ekstern lenke)
• Katie Herlingshaw; Lisa Baddeley; Kjellmar Oksavik et al. (2022). A statistical study of polar cap flow channels observed in both hemispheres using SuperDARN radars. (ekstern lenke)
• Nikolai Østgaard; Jone Peter Reistad; Paul Arne Riksheim Tenfjord et al. (2016). Mechanisms that Produce Auroral Asymmetries in Conjugate Hemispheres. (ekstern lenke)
• Karl Magnus Laundal; Christopher C. Finlay; NIls Olsen (2016). Sunlight effects on the 3D polar current system determined from low Earth orbit measurements. (ekstern lenke)
• Charlotte Van Hazendonk; Lisa Baddeley; Karl Magnus Laundal et al. (2025). A statistical study of optical signatures of high-latitude Pc5 waves. (ekstern lenke)
• Michael Madelaire; Karl Magnus Laundal; Jesper Gjerløv et al. (2023). Spatial Resolution in Inverse Problems: The EZIE Satellite Mission. (ekstern lenke)
• Kristian Snekvik; Eija Irene Tanskanen; Nikolai Østgaard et al. (2012). Changes in the magnetotail configuration before near-Earth reconnection. (ekstern lenke)
• Finn Søraas; Karl Magnus Laundal; Maria E. Usanova (2013). Coincident particle and optical observations of nightside subauroral proton precipitation. (ekstern lenke)
• Timo Pitkänen; Anita Kullen; Karl Magnus Laundal et al. (2019). IMF By Influence on Magnetospheric Convection in Earth's Magnetotail Plasma Sheet. (ekstern lenke)
• Amalie Øie Hovland; Karl Magnus Laundal; Jone Peter Reistad et al. (2022). The Lompe code: A Python toolbox for ionospheric data analysis. (ekstern lenke)
• Paul Tenfjord; Nikolai Østgaard; Stein Haaland et al. (2018). How the IMF By Induces a Local By Component During Northward IMF Bz and Characteristic Timescales. (ekstern lenke)
• Kristian Snekvik; Nikolai Østgaard; Paul Tenfjord et al. (2017). Dayside and nightside magnetic field responses at 780 km altitude to dayside reconnection. (ekstern lenke)
• Norah Kaggwa Kwagala; Kjellmar Oksavik; Dag Arne Lorentzen et al. (2018). Seasonal and solar cycle variations of thermally excited 630.0 nm emissions in the polar ionosphere. (ekstern lenke)
• Anders Ohma; Nikolai Østgaard; Jone Peter Reistad et al. (2019). Observations of asymmetric lobe convection for weak and strong tail activity. (ekstern lenke)
• Karl Magnus Laundal; Jone Peter Reistad; Spencer Mark Hatch et al. (2022). Local Mapping of Polar Ionospheric Electrodynamics. (ekstern lenke)
• Nikolai Østgaard; Karl Magnus Laundal; Liisa Juusola et al. (2012). Correction to 'Interhemispherical asymmetry of substorm onset locations and the Interplanetary Magnetic Field.'. (ekstern lenke)
• Jone Peter Reistad; Karl Magnus Laundal; Nikolai Østgaard et al. (2019). Separation and quantification of ionospheric convection sources: 2. The dipole tilt angle influence on reverse convection cells during northward IMF. (ekstern lenke)
• Jone Peter Reistad; Karl Magnus Laundal; Nikolai Østgaard et al. (2019). Separation and quantification of ionospheric convection sources: 1. A new technique. (ekstern lenke)
• Sara Gasparini; L. Kepko; Karl Magnus Laundal (2024). Quantifying the Mesoscale Contribution to FACs During a Magnetospheric Substorm. (ekstern lenke)
• Jone Peter Reistad; Spencer Mark Hatch; Karl Magnus Laundal et al. (2024). Volumetric Reconstruction of Ionospheric Electric Currents From Tri-Static Incoherent Scatter Radar Measurements. (ekstern lenke)
• Karl Magnus Laundal; J.H. Yee; V.G. Merkin et al. (2021). Electrojet Estimates From Mesospheric Magnetic Field Measurements. (ekstern lenke)
• Reham Zakaria Ahmed Mohamed Elhawary; Karl Magnus Laundal; Jone Peter Reistad et al. (2024). How Do Substorms Influence Hemispheric Asymmetries in Equivalent Currents?. (ekstern lenke)
• Karl Magnus Laundal; Nikolai Østgaard; Kristian Snekvik et al. (2010). Interhemispheric observations of emerging polar cap asymmetries. (ekstern lenke)
• Michael Madelaire; Karl Magnus Laundal; Jone Peter Reistad et al. (2022). Transient high latitude geomagnetic response to rapid increases in solar wind dynamic pressure. (ekstern lenke)
• Spencer Mark Hatch; Ilkka Virtanen; Karl Magnus Laundal et al. (2025). Toolkit for incoherent scatter radar experiment design and applications to EISCAT_3D. (ekstern lenke)
• Clemens Kloss; Christopher C Finlay; Karl Magnus Laundal et al. (2023). Polar ionospheric currents and high temporal resolution geomagnetic field models. (ekstern lenke)
• Torunn Hegna; Hans Pettersson; Karl Magnus Laundal et al. (2011). 3-D laser scanner system based on a galvanometer scan head for high temperature applications. (ekstern lenke)
• Michael Madelaire; Karl Magnus Laundal; Spencer Mark Hatch et al. (2024). Estimating the Ionospheric Induction Electric Field Using Ground Magnetometers. (ekstern lenke)
• Margot Emilie Decotte; Karl Magnus Laundal; Spencer Mark Hatch et al. (2024). Occurrence Probability of Magnetic Field Disturbances Measured With Swarm: Mapping the Dynamic Magnetosphere-Ionosphere Coupling. (ekstern lenke)
• Nikolai Østgaard; Karl Magnus Laundal; Liisa Juusola et al. (2011). Interhemispherical asymmetry of substorm onset locations and the interplanetary magnetic field. (ekstern lenke)
• Karl Magnus Laundal; Arthur D. Richmond (2016). Magnetic coordinate systems. (ekstern lenke)
• Michael Madelaire; Karl Magnus Laundal; Jone Peter Reistad et al. (2022). Geomagnetic Response to Rapid Increases in Solar Wind Dynamic Pressure: Event Detection and Large Scale Response. (ekstern lenke)
• Anders Ohma; Karl Magnus Laundal; Jone Peter Reistad et al. (2022). Evolution of IMF By induced asymmetries during substorms: Superposed epoch analysis at geosynchronous orbit. (ekstern lenke)
• Spencer Mark Hatch; Karl Magnus Laundal; Jone Peter Reistad (2022). Testing the mirror symmetry of Birkeland and ionospheric currents with respect to magnetic latitude, dipole tilt angle, and IMF B <inf>y</inf>. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Paul Tenfjord et al. (2016). Dynamic effects of restoring footpoint symmetry on closed magnetic field lines. (ekstern lenke)
• Karl Magnus Laundal; Spencer Mark Hatch; Jone Peter Reistad et al. (2024). How the Ionosphere Responds Dynamically to Magnetospheric Forcing. (ekstern lenke)
• Simon Walker; Spencer Mark Hatch; Karl Magnus Laundal et al. (2025). Predictors of Substorm Onset Conjugate Displacement. (ekstern lenke)
• Karl Magnus Laundal; Jesper Gjerløv; Nikolai Østgaard et al. (2016). The impact of sunlight on high-latitude equivalent currents. (ekstern lenke)
• Karl Magnus Laundal; Jone Peter Reistad; Christopher C. Finlay et al. (2018). Interplanetary Magnetic Field Bx Component Influence on Horizontal and Field-Aligned Currents in the Ionosphere. (ekstern lenke)
• Nikolai Østgaard; Beate Krøvel Humberset; Karl Magnus Laundal (2011). Evolution of auroral asymmetries in the conjugate hemispheres during two substorms. (ekstern lenke)
• Nikolai Østgaard; Jone Peter Reistad; Paul Tenfjord et al. (2018). The asymmetric geospace as displayed during the geomagnetic storm on 17 August 2001. (ekstern lenke)
• Anders Ohma; Nikolai Østgaard; Jone Peter Reistad et al. (2018). Evolution of Asymmetrically Displaced Footpoints During Substorms. (ekstern lenke)
• Karl Magnus Laundal; Nikolai Østgaard (2008). Persistent global proton aurora caused by high solar wind dynamic pressure. (ekstern lenke)
• Maxime Grandin; Vincent E. Ledvina; Sophie Musset et al. (2025). Citizen Science in Space and Atmospheric Sciences: Opportunities and Challenges. (ekstern lenke)
• Karl Magnus Laundal; Michael Madelaire; Anders Ohma et al. (2022). The relationship between interhemispheric asymmetries in polar ionospheric convection and the magnetic field line footpoint displacement field. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2013). On the non-conjugacy of nightside aurora and their generator mechanisms. (ekstern lenke)
• Karl Magnus Laundal; Christopher C. Finlay; N Olsen et al. (2018). Solar Wind and Seasonal Influence on Ionospheric Currents From Swarm and CHAMP Measurements. (ekstern lenke)

Kapittel i fagbok

• Stein Egil Haaland; Bjørn Lybekk; Lukas Maes et al. (2021). Ion Outflow and Lobe Density: Interhemispheric Asymmetries. (ekstern lenke)

Konferanseforedrag

• Anders Ohma; Nikolai Østgaard; Jone Peter Reistad et al. (2020). How tail reconnection affects the asymmetric state of the magnetosphere in the LFM model. (ekstern lenke)
• Nikolai Østgaard; Karl Magnus Laundal; Johan Stadsnes (2011). Auroral asymmetries in the conjugate hemispheres. (ekstern lenke)
• Paul Tenfjord; Nikolai Østgaard; Stein Haaland et al. (2015). On which timescales are By induced in the closed magnetosphere?. (ekstern lenke)
• Karl Magnus Laundal; Nikolai Østgaard (2017). Norwegian contributions to the ISWI program. (ekstern lenke)
• Devin Ray Huyghebaert; Björn Johan Gustavsson; Juha-Pekka Vierinen et al. (2024). Interferometric Imaging for Fine-Scale Ionospheric Plasma Parameter Determination with EISCAT_3D. (ekstern lenke)
• Nikolai Østgaard; Karl Magnus Laundal (2009). Asymmetric aurora detected in the two hemispheres simultaneously. (ekstern lenke)
• Devin Ray Huyghebaert; Björn Johan Gustavsson; Juha-Pekka Vierinen et al. (2024). Interferometric Imaging of Ion Lines with EISCAT 3D - Resolving In-Beam Structures Using Long Baselines, Singular Value Decomposition, and Tikhonov Regularization. (ekstern lenke)
• Nikolai Østgaard; Arne Åsnes; A. Pedersen et al. (2008). What are the ionospheric signatures of magnetotail reconnection?. (ekstern lenke)
• Nikolai Østgaard; Jone Peter Reistad; Paul Tenfjord et al. (2013). What are the mechanisms that produce auroral asymmetries in the conjugate hemispheres?. (ekstern lenke)
• Karl Magnus Laundal; Matthias Förster; Kristian Snekvik et al. (2015). Effects of electric field component representation on estimated cross polar cap potential - Implications for interhemispheric asymmetries. (ekstern lenke)
• Anders Ohma; Nikolai Østgaard; Jone Peter Reistad et al. (2019). Cluster EDI Observations of the Asymmetric Plasma Convection in the Magnetotail Lobes During Different Levels of Tail Reconnection Rate. (ekstern lenke)
• Jennifer Alyson Carter; Piyal Samara-Ratna; Susan T. Lepri et al. (2023). Elfen: A CubeSat mission to measure heavy ions on both the dayside and nightside of Earth's magnetosphere. (ekstern lenke)
• Paul Tenfjord; Nikolai Østgaard; Stein Haaland et al. (2013). Inter-hemispheric currents in the ring current region. (ekstern lenke)
• Kristian Snekvik; Nikolai Østgaard; Paul Tenfjord et al. (2017). Dayside and nightside magnetic field responses at 780 km altitude to dayside reconnection.. (ekstern lenke)
• Karl Magnus Laundal; Nikolai Østgaard (2009). IMF Bx Effects on Interhemispheric Polar Cap Asymmetries Inferred From Conjugate Auroral Imaging. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2017). The influence of plasma flows bringing the magnetotail back to a more symmetric configuration. (ekstern lenke)
• Karl Magnus Laundal (2017). High latitude currents and convection during quiet times. (ekstern lenke)
• Paul Tenfjord; Stein Haaland; Karl Magnus Laundal et al. (2017). How the IMF By induces a By-component on closed field lines during northward IMF Bz. (ekstern lenke)
• Karl Magnus Laundal; Nikolai Østgaard (2008). Conjugate observations of substorm onset and expansion in the two hemispheres. (ekstern lenke)
• Karl Magnus Laundal; Nikolai Østgaard (2009). Conjugate aurora observations of substorms IAGA meeting. (ekstern lenke)
• Nikolai Østgaard; Beate Krøvel Humberset; Karl Magnus Laundal et al. (2009). Substorm auroral asymmetries in the conjugate hemispheres during onset and expansion phase. (ekstern lenke)
• Karl Magnus Laundal; Nikolai Østgaard (2009). Asymmetric aurora detected in the two hemispheres simultaneously. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2014). Comparison of solar wind driving of the aurora in the two hemispheres due to solar wind dynamo. (ekstern lenke)
• Stein Haaland; Matthias Foerster; Karl Magnus Laundal et al. (2015). North-south asymmetries in magnetospheric and ionospheric plasma circulation (Invited). (ekstern lenke)
• Spencer Mark Hatch; Therese Moretto; Karl Magnus Laundal (2019). The relative importance of diamagnetic effects in the high-latitude ionosphere. (ekstern lenke)
• Spencer Mark Hatch; Stein Haaland; Karl Magnus Laundal et al. (2020). Hemispheric and seasonal variations in the cold plasma outflow source region: polar cap ionosphere electron density at 350–500 km. (ekstern lenke)
• Jone Peter Reistad; Stein Haaland; Nikolai Østgaard et al. (2013). Investigation of the role of IMF Bx on magnetopause characteristic past the terminator. (ekstern lenke)
• Spencer Mark Hatch; Ilkka I. Virtanen; Karl Magnus Laundal et al. (2024). e3doubt: An open-source toolkit for E3D experiment planning and uncertainty estimation. (ekstern lenke)
• Stein Haaland; Karl Magnus Laundal; Bjørn Lybekk et al. (2017). North-south asymmetries in lobe density: Cluster observations. (ekstern lenke)
• Anders Ohma; Karl Magnus Laundal; Jone Peter Reistad et al. (2022). Excitation and Decay of Auroral Flux. (ekstern lenke)
• Paul Tenfjord; Kristian Snekvik; Nikolai Østgaard et al. (2015). Generation of Birkeland Currents during IMF By; Mechanisms and theory. (ekstern lenke)
• Norah Kaggwa Kwagala; Kjellmar Oksavik; Dag Arne Lorentzen et al. (2019). Thermally excited 630.0 nm emissions in the polar ionosphere. (ekstern lenke)
• Finn Søraas; Karl Magnus Laundal (2011). Particle and optical observations of subauroral proton precipitation. (ekstern lenke)
• Theresa Rexer; Nikolai Østgaard; Jone Peter Reistad et al. (2015). Current systems associated with Non-Conjugate Aurora. (ekstern lenke)
• Karl Magnus Laundal; Nikolai Østgaard (2009). IPY-ICESTAR Arctic Frontiers. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Paul Tenfjord 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?. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2014). Conjugate and non-conjugate aspects of the aurora. (ekstern lenke)
• Devin Ray Huyghebaert; Björn Johan Gustavsson; Juha-Pekka Vierinen et al. (2024). Interferometric Imaging of the Ion-Line with EISCAT_3D - Development and Software. (ekstern lenke)
• Devin Ray Huyghebaert; Björn Johan Gustavsson; Juha-Pekka Vierinen et al. (2024). Interferometric Imaging of the Ion-Line with EISCAT_3D. (ekstern lenke)
• Anders Ohma; Nikolai Østgaard; Jone Peter Reistad et al. (2019). Observations of Asymmetric Lobe Convection for Weak and Strong Tail Reconnection. (ekstern lenke)
• Spencer Mark Hatch; Johnathan K Burchill; Heikki Vanhamäki et al. (2025). What is the neutral wind in height-integrated ionospheric electrodynamics?. (ekstern lenke)
• Spencer Mark Hatch; Therese Moretto; Karl Magnus Laundal (2019). Southern and Northern Hemisphere relationships between ion outflow and magnetic field fluctuations. (ekstern lenke)
• Jone Peter Reistad; Karl Magnus Laundal; Nikolai Østgaard et al. (2018). Plasma circulation inside the polar cap and lobe reconnection. (ekstern lenke)
• Anders Ohma; Michael Madelaire; Karl Magnus Laundal et al. (2022). Data Driven Dayglow Detection: Background removal from global FUV images. (ekstern lenke)
• Spencer Mark Hatch; Yasunobu Ogawa; Matthew David Zettergren et al. (2022). Generation of a synthetic EISCAT_3D dataset. (ekstern lenke)
• Spencer Mark Hatch; Ilkka I. Virtanen; Jone Peter Reistad et al. (2024). E3D-BRITE: EISCAT_3D-based reconstruction of ionosphere-thermosphere electrodynamics. (ekstern lenke)
• Kristian Snekvik; Karl Magnus Laundal; Nikolai Østgaard et al. (2015). Magnetic field patterns near the polar cap boundary. (ekstern lenke)
• Karl Magnus Laundal; Katarina Grujic; Torunn Hegna et al. (2014). Techniques for fast measurement of cylinder diameter outdoors. (ekstern lenke)
• Karl Magnus Laundal; N Olsen; C Finlay et al. (2015). Statistical maps of Birkeland currents from Swarm magnetometer measurements. (ekstern lenke)
• Karl Magnus Laundal; Christopher C. Finlay; NIls Olsen et al. (2017). Characterizing external influence on the large-scale polar ionospheric current system. (ekstern lenke)
• Karl Magnus Laundal (2017). Production and visualization of a climatological model of high-latitude ionospheric and field aligned current systems. (ekstern lenke)
• Karl Magnus Laundal; Jone Peter Reistad; Paul Tenfjord et al. (2017). Seasonal and IMF-controlled variations in the large-scale true horizontal ionospheric current. (ekstern lenke)
• Jone Peter Reistad; Karl Magnus Laundal; Anders Ohma et al. (2019). A new way to identify and quantify the sources of ionospheric convection. (ekstern lenke)
• Nikolai Østgaard; Karl Magnus Laundal (2008). Auroral conjugacy studies. (ekstern lenke)
• Anders Ohma; Nikolai Østgaard; Jone Peter Reistad et al. (2019). How Asymmetries in Geospace Evolve During Substorms. (ekstern lenke)
• Egil Vålandsmyr Herland; Christopher C. Finlay; Nils Olsen et al. (2017). The CHAOS-X Model and Uncertainty Values for Magnetic Directional Surveying. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2013). Simultaneous global imaging as a tracer of true conjugate regions. (ekstern lenke)
• Karl Magnus Laundal; Christopher C. Finlay; NIls Olsen et al. (2017). Hemispherical differences in the Ionospheric current system as seen by Swarm and CHAMP. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2014). Hemispheric differences in solar wind – magnetosphere interactions. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2014). Comparison of solar wind driving of the aurora in the two hemispheres due to the solar wind dynamo. (ekstern lenke)
• Spencer Mark Hatch; Therese Moretto; Karl Magnus Laundal et al. (2019). Swarm as a platform for ion outflow studies. (ekstern lenke)
• Spencer Mark Hatch; Therese Moretto; Karl Magnus Laundal (2019). FAST observations of cusp/cleft-region ion upflow and field variations. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2013). Intensity asymmetries between the northern and southern auroral ovals associated with the x-component of the Interplanetary Magnetic Field. (ekstern lenke)
• Jone Peter Reistad; Stein Haaland; Nikolai Østgaard et al. (2013). Investigation of a possible IMF Bx influence on magnetopause characteristic. (ekstern lenke)
• Karl Magnus Laundal; Nikolai Østgaard (2007). Solar wind pressure as a cause for persistent proton precipitation. (ekstern lenke)
• Anders Ohma; Nikolai Østgaard; Jone Peter Reistad et al. (2019). How asymmetries in Geospace evolve during increased tail reconnection. (ekstern lenke)
• Stein Haaland; Bjørn Lybekk; Lukas Maes et al. (2017). North-South asymmetries in cold plasma density. (ekstern lenke)
• Karl Magnus Laundal; Matthias Förster; Stein Haaland et al. (2015). Effects of electric field component representation on estimated cross polar cap potential - Implications for interhemispheric asymmetries. (ekstern lenke)
• Finn Søraas; Marita Sørbø; Karl Magnus Laundal (2011). Observations of energetic protons and auroral light during geomagnetic storms. (ekstern lenke)
• Nikolai Østgaard; Beate Krøvel Humberset; Liisa Juusola et al. (2011). Asymmetries of substorm onset location and the dynamic behavior of auroral substorms during expansion phase. (ekstern lenke)
• Nikolai Østgaard; Beate Krøvel Humberset; Karl Magnus Laundal et al. (2011). Auroral asymmetries in the conjugate hemispheres during substorm onset and expansion phase. (ekstern lenke)
• Karl Magnus Laundal; Jone Peter Reistad; Spencer Mark Hatch et al. (2024). Volumetric reconstruction of ionospheric electric currents from tri-static incoherent scatter radar measurements. (ekstern lenke)
• Spencer Mark Hatch; Stein Haaland; Karl Magnus Laundal 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. (ekstern lenke)
• Karl Magnus Laundal; Nikolai Østgaard (2008). Conjugate imaging of substorms. (ekstern lenke)
• Karl Magnus Laundal; Christopher C. Finlay; NIls Olsen et al. (2017). North-south asymmetries in polar ionospheric currents - effects of asymmetries in the main magnetic field. (ekstern lenke)
• Nikolai Østgaard; Karl Magnus Laundal (2009). Asymmetric aurora detected in the two hemispheres simultaneously. (ekstern lenke)
• Devin Ray Huyghebaert; Björn Johan Gustavsson; Juha-Pekka Vierinen et al. (2024). Interferometric Imaging of the Ion-Line with EISCAT_3D. (ekstern lenke)
• Jone Peter Reistad; Stein Haaland; Nikolai Østgaard et al. (2013). Investigation of a possible IMF Bx influence on magnetopause characteristics. (ekstern lenke)
• Karl Magnus Laundal; Nikolai Østgaard; Jone Peter Reistad et al. (2013). Non-Conjugate Features in the Auroral Ovals in the two Hemispheres. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2014). Asymmetric Solar Wind dynamo efficiency and IMF Bx. (ekstern lenke)

Konferanseposter

• Paul Tenfjord; Nikolai Østgaard; Jone Peter Reistad et al. (2018). How the IMF BY induces a BY component on closed field lines during northward IMF Bz and characteristic timescales. (ekstern lenke)
• Karl Magnus Laundal; Nikolai Østgaard (2008). Auroral asymmetries in the conjugate hemispheres during strong IMF Bx. (ekstern lenke)
• Anders Ohma; Nikolai Østgaard; Jone Peter Reistad et al. (2017). Evolution of asymmetrically displaced footpoints during substorms. (ekstern lenke)
• Paul Tenfjord; Nikolai Østgaard; Jone Peter Reistad et al. (2013). Inter-hemispheric currents in the ring current region as seen by the Cluster spacecraft. (ekstern lenke)
• Paul Tenfjord; Nikolai Østgaard; Jone Peter Reistad et al. (2014). Generation of Field Aligned Currents during IMF By: Mechanisms and theory. (ekstern lenke)
• Paul Tenfjord; Stein Haaland; Karl Magnus Laundal et al. (2017). How the IMF By induces a By-component on closed field lines during northward IMF Bz. (ekstern lenke)
• Paul Arne Riksheim Tenfjord; Nikolai Østgaard; Stein Haaland et al. (2016). How the IMF By induces a By component on closed field lines during northward IMF Bz. (ekstern lenke)
• Karl Magnus Laundal; Jesper W. Gjerloev (2014). What is the Appropriate Coordinate System for Magnetometer Data when Analyzing Ionospheric Currents?. (ekstern lenke)
• Beate Krøvel Humberset; Nikolai Østgaard; Karl Magnus Laundal (2009). A case study of auroral conjugacy based on global imaging. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2013). Auroral intensity asymmetries associated with the x-component of the interplanetary magnetic field in the two polar hemispheres. (ekstern lenke)
• Karl Magnus Laundal; Nikolai Østgaard; Jone Peter Reistad (2013). Solar wind dynamic pressure effect on global auroral intensity. (ekstern lenke)
• Heikki Vanhamäki; Karl Magnus Laundal; Jone Peter Reistad et al. (2024). Swarm-based empirical models of high-latitude ionospheric electrodynamics. (ekstern lenke)
• Anders Ohma; Nikolai Østgaard; Jone Peter Reistad et al. (2017). Evolution of asymmetrically displaced footpoints during substorms. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2017). When and where is the process of restoring symmetry important?. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Kjellmar Oksavik et al. (2012). Asymmetric field-aligned currents in the conjugate hemispheres. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2013). How IMF Bx affects the two polar hemispheres differently. (ekstern lenke)
• Jone Peter Reistad; Karl Magnus Laundal; Anders Ohma et al. (2019). A new way to identify and quantify the sources of ionospheric convection. (ekstern lenke)
• Jone Peter Reistad; Karl Magnus Laundal; Nikolai Østgaard et al. (2019). Quantifying the dipole tilt influence on reverse convection cells during northward IMF using spherical elementary functions. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Paul Tenfjord et al. (2015). On the importance of magnetotail untwisting. (ekstern lenke)
• Stein Haaland; Karl Magnus Laundal; Lukas Maes et al. (2016). North-south asymmetries in cold ion outflow and lobe density. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2014). Hemispheric asymmetries in the global aurora and IMF Bx. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Paul Arne Riksheim Tenfjord et al. (2016). Dynamic effects of restoring footpoint symmetry on closed magnetic field-lines: Asymmetric Birkeland currents. (ekstern lenke)
• Spencer Mark Hatch; Jone Peter Reistad; Karl Magnus Laundal et al. (2023). E3D-BRITE: EISCAT_3D-based reconstruction of ionosphere-thermosphere electrodynamics. (ekstern lenke)
• Karl Magnus Laundal; Stein Haaland; Nikolai Østgaard et al. (2015). Birkeland Current Effects on High-Latitude Ground Magnetic Field Perturbations. (ekstern lenke)
• Anders Ohma; Nikolai Østgaard; Jone Peter Reistad et al. (2018). Evolution of asymmetrically displaced footpoints during substorms. (ekstern lenke)
• Paul Tenfjord; Nikolai Østgaard; Stein Haaland et al. (2015). The Impact of IMF By on the Magnetosphere-Ionosphere System. (ekstern lenke)
• Nikolai Østgaard; Jone Peter Reistad; Paul Tenfjord et al. (2017). The asymmetric geospace - the most common state of the system. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2015). On the importance of magnetotail untwist. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2013). How IMF Bx affects the two hemispheres differently. (ekstern lenke)
• Jone Peter Reistad; Nikolai Østgaard; Karl Magnus Laundal et al. (2012). Non-conjugate aurora and inter hemispheric currents. (ekstern lenke)

Doktorgradsavhandling

• Karl Magnus Laundal; Nikolai Østgaard (2010). Auroral imaging as a tracer of global magnetospheric dynamics. (ekstern lenke)

Kapittel i populærvitenskapelig bok

• Pål Gunnar Ellingsen; Lisa Baddeley; Dag Arne Lorentzen et al. (2016). Auroral research and the total solar eclipse.. (ekstern lenke)

Vitenskapelig litteraturgjennomgang

• Katarina Grujic; Torunn Hegna; Karl Magnus Laundal (2012). In situ monitoring of growth interfaces: a review of noninvasive methods. (ekstern lenke)
• Karl Magnus Laundal; Ingrid Cnossen; Stephen Eric Milan et al. (2016). North–south asymmetries in Earth’s magnetic field effects on high-latitude geospace. (ekstern lenke)
• Karl Magnus Laundal; Aurélie Marchaudon; Astrid Maute et al. (2025). Next-Generation Data Assimilation Methods for Polar Ionospheric Electrodynamics. (ekstern lenke)

Masteroppgave

• Karl Magnus Laundal; Nikolai Østgaard (2007). Storm Time Observations of the Global Proton Aurora. (ekstern lenke)

Rettelse i tidsskrift

• Nikolai Østgaard; Karl Magnus Laundal; Beate Krøvel Humberset (2013). Correction to 'Evolution of auroral asymmetries in the conjugate hemispheres during two substorms.'. (ekstern lenke)

Lederartikkel

• Denny M. Oliveira; Daniel T. Welling; Hyomin Kim et al. (2023). Editorial: Understanding the causes of asymmetries in Earth’s magnetosphere-ionosphere system. (ekstern lenke)

Forelesning

• Karl Magnus Laundal; Nikolai Østgaard; Jone Peter Reistad et al. (2014). Seasonal differences in ionospheric current rise and decay times. (ekstern lenke)

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