- E-post
- karl.laundal@uib.no
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- +47 55582706
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Allégaten 55
5007 Bergen - Postadresse
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Postboks 7803
5020 Bergen
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Publikasjoner
Vitenskapelig artikkel
- Laundal, Karl Magnus; Hatch, Spencer Mark; Reistad, Jone Peter et al. (2024). How the Ionosphere Responds Dynamically to Magnetospheric Forcing. (ekstern lenke)
- Walker, Simon; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2024). A Comparison of Auroral Oval Proxies With the Boundaries of the Auroral Electrojets. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- Elhawary, Reham Zakaria Ahmed Mohamed; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2024). How Do Substorms Influence Hemispheric Asymmetries in Equivalent Currents?. (ekstern lenke)
- Walker, Simon; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2024). The Ionospheric Leg of the Substorm Current Wedge: Combining Iridium and Ground Magnetometers. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- Madelaire, Michael; Laundal, Karl Magnus; Hatch, Spencer Mark et al. (2024). Estimating the Ionospheric Induction Electric Field Using Ground Magnetometers. (ekstern lenke)
- Ohma, Anders; Laundal, Karl Magnus; Madelaire, Michael et al. (2024). Robust Estimates of Spatiotemporal Variations in the Auroral Boundaries Derived From Global UV Imaging. (ekstern lenke)
- Hatch, Spencer Mark; Vanhamäki, Heikki; Laundal, Karl Magnus et al. (2024). Does high-latitude ionospheric electrodynamics exhibit hemispheric mirror symmetry?. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- Gasparini, Sara; Kepko, L.; Laundal, Karl Magnus (2024). Quantifying the Mesoscale Contribution to FACs During a Magnetospheric Substorm. (ekstern lenke)
- Ohma, Anders; Madelaire, Michael; Laundal, Karl Magnus et al. (2023). Background removal from global auroral images: Data-driven dayglow modeling. (ekstern lenke)
- Walker, Simon; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2023). Statistical Temporal Variations in the Auroral Electrojet Estimated With Ground Magnetometers in Fennoscandia. (ekstern lenke)
- Kloss, Clemens; Finlay, Christopher C; Laundal, Karl Magnus et al. (2023). Polar ionospheric currents and high temporal resolution geomagnetic field models. (ekstern lenke)
- Decotte, Margot Emilie; Laundal, Karl Magnus; Hatch, Spencer Mark et al. (2023). Auroral Oval Morphology: Dawn-Dusk Asymmetry Partially Induced by Earth's Rotation. (ekstern lenke)
- Madelaire, Michael; Laundal, Karl Magnus; Gjerløv, Jesper et al. (2023). Spatial Resolution in Inverse Problems: The EZIE Satellite Mission. (ekstern lenke)
- Elhawary, Reham Zakaria Ahmed Mohamed; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2023). Substorm Impact on Dayside Ionospheric Currents. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- Madelaire, Michael; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2022). Transient high latitude geomagnetic response to rapid increases in solar wind dynamic pressure. (ekstern lenke)
- 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. (ekstern lenke)
- 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>. (ekstern lenke)
- Hovland, Amalie Øie; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2022). The Lompe code: A Python toolbox for ionospheric data analysis. (ekstern lenke)
- Laundal, Karl Magnus; Reistad, Jone Peter; Hatch, Spencer Mark et al. (2022). Local Mapping of Polar Ionospheric Electrodynamics. (ekstern lenke)
- Elhawary, Reham Zakaria Ahmed Mohamed; Laundal, Karl Magnus; Reistad, Jone Peter et al. (2022). Possible Ionospheric Influence on Substorm Onset Location. (ekstern lenke)
- Herlingshaw, Katie; Baddeley, Lisa; Oksavik, Kjellmar et al. (2022). A statistical study of polar cap flow channels observed in both hemispheres using SuperDARN radars. (ekstern lenke)
- Ohma, Anders; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2021). Evolution of IMF By Induced Asymmetries: The Role of Tail Reconnection. (ekstern lenke)
- 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 . (ekstern lenke)
- Laundal, Karl Magnus; Yee, J.H.; Merkin, V.G. et al. (2021). Electrojet Estimates From Mesospheric Magnetic Field Measurements. (ekstern lenke)
- Branduardi-Raymont, Graziella; Berthomier, M; Bogdanova, Y. V. et al. (2021). Exploring solar-terrestrial interactions via multiple imaging observers. (ekstern lenke)
- Laundal, Karl Magnus; Reistad, Jone Peter; Hatch, Spencer Mark et al. (2020). Time-scale dependence of solar wind-based regression models of ionospheric electrodynamics. (ekstern lenke)
- 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. (ekstern lenke)
- Reistad, Jone Peter; Laundal, Karl Magnus; Ohma, Anders et al. (2020). An Explicit IMF B 𝑦 Dependence on Solar Wind-Magnetosphere Coupling. (ekstern lenke)
- 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. (ekstern lenke)
- Ohma, Anders; Østgaard, Nikolai; Reistad, Jone Peter et al. (2019). Observations of asymmetric lobe convection for weak and strong tail activity. (ekstern lenke)
- 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. (ekstern lenke)
- Reistad, Jone Peter; Laundal, Karl Magnus; Østgaard, Nikolai et al. (2019). Separation and quantification of ionospheric convection sources: 1. A new technique. (ekstern lenke)
- Laundal, Karl Magnus; Hatch, Spencer Mark; Moretto, Therese (2019). Magnetic Effects of Plasma Pressure Gradients in the Upper F Region. (ekstern lenke)
- Pitkänen, Timo; Kullen, Anita; Laundal, Karl Magnus et al. (2019). IMF By Influence on Magnetospheric Convection in Earth's Magnetotail Plasma Sheet . (ekstern lenke)
- 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. (ekstern lenke)
- Laundal, Karl Magnus; Finlay, Christopher C.; Olsen, N et al. (2018). Solar Wind and Seasonal Influence on Ionospheric Currents From Swarm and CHAMP Measurements. (ekstern lenke)
- Ohma, Anders; Østgaard, Nikolai; Reistad, Jone Peter et al. (2018). Evolution of Asymmetrically Displaced Footpoints During Substorms. (ekstern lenke)
- Burrell, Angeline G.; Halford, Alexa J.; Klenzing, Jeffrey H. et al. (2018). Snakes on a spaceship—An overview of Python in heliophysics. (ekstern lenke)
- Østgaard, Nikolai; Reistad, Jone Peter; Tenfjord, Paul et al. (2018). The asymmetric geospace as displayed during the geomagnetic storm on 17 August 2001. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2018). Observations of asymmetries in ionospheric return flow during different levels of geomagnetic activity. (ekstern lenke)
- Snekvik, Kristian; Østgaard, Nikolai; Tenfjord, Paul et al. (2017). Dayside and nightside magnetic field responses at 780 km altitude to dayside reconnection. (ekstern lenke)
- Haaland, Stein; Lybekk, Bjørn; Maes, Lukas et al. (2017). North-south asymmetries in cold plasma density in the magnetotail lobes: Cluster observations. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- Laundal, Karl Magnus; Richmond, Arthur D. (2016). Magnetic coordinate systems. (ekstern lenke)
- Laundal, Karl Magnus; Finlay, Christopher C.; Olsen, NIls (2016). Sunlight effects on the 3D polar current system determined from low Earth orbit measurements. (ekstern lenke)
- Tenfjord, Paul Arne Riksheim; Østgaard, Nikolai; Strangeway, Robert J. et al. (2016). Magnetospheric response and reconfiguration times following IMF By reversals. (ekstern lenke)
- Østgaard, Nikolai; Reistad, Jone Peter; Tenfjord, Paul Arne Riksheim et al. (2016). Mechanisms that Produce Auroral Asymmetries in Conjugate Hemispheres. (ekstern lenke)
- Reistad, Jone Peter; Østgaard, Nikolai; Tenfjord, Paul et al. (2016). Dynamic effects of restoring footpoint symmetry on closed magnetic field lines. (ekstern lenke)
- Laundal, Karl Magnus; Gjerløv, Jesper; Østgaard, Nikolai et al. (2016). The impact of sunlight on high-latitude equivalent currents. (ekstern lenke)
- Laundal, Karl Magnus; Haaland, Stein; Lehtinen, Nikolai et al. (2015). Birkeland current effects on high-latitude ground magnetic field perturbations. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- Laundal, Karl Magnus; Gjerløv, Jesper (2014). What is the appropriate coordinate system for magnetometer data when analyzing ionospheric currents?. (ekstern lenke)
- Reistad, Jone Peter; Østgaard, Nikolai; Laundal, Karl Magnus et al. (2013). On the non-conjugacy of nightside aurora and their generator mechanisms. (ekstern lenke)
- Søraas, Finn; Laundal, Karl Magnus; Usanova, Maria E. (2013). Coincident particle and optical observations of nightside subauroral proton precipitation. (ekstern lenke)
- Snekvik, Kristian; Tanskanen, Eija Irene; Østgaard, Nikolai et al. (2012). Changes in the magnetotail configuration before near-Earth reconnection. (ekstern lenke)
- Østgaard, Nikolai; Laundal, Karl Magnus; Juusola, Liisa et al. (2012). Correction to 'Interhemispherical asymmetry of substorm onset locations and the Interplanetary Magnetic Field.'. (ekstern lenke)
- Østgaard, Nikolai; Humberset, Beate Krøvel; Laundal, Karl Magnus (2011). Evolution of auroral asymmetries in the conjugate hemispheres during two substorms. (ekstern lenke)
- Østgaard, Nikolai; Laundal, Karl Magnus; Juusola, Liisa et al. (2011). Interhemispherical asymmetry of substorm onset locations and the interplanetary magnetic field. (ekstern lenke)
- 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. (ekstern lenke)
- Laundal, Karl Magnus; Østgaard, Nikolai; Frey, H. U. et al. (2010). Seasonal and interplanetary magnetic field-dependent polar cap contraction during substorm expansion phase. (ekstern lenke)
- Laundal, Karl Magnus; Østgaard, Nikolai; Snekvik, Kristian et al. (2010). Interhemispheric observations of emerging polar cap asymmetries. (ekstern lenke)
- Laundal, Karl Magnus; Østgaard, Nikolai (2009). Asymmetric auroral intensities in the Earth's Northern and Southern hemispheres. (ekstern lenke)
- Laundal, Karl Magnus; Østgaard, Nikolai (2008). Persistent global proton aurora caused by high solar wind dynamic pressure. (ekstern lenke)
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