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En fullstendig liste over mine publikasjoner finnes på Google Scholar

Vitenskapelig artikkel
  • Vis forfatter(e) (2022). Transient high latitude geomagnetic response to rapid increases in solar wind dynamic pressure. Frontiers in Astronomy and Space Sciences.
  • Vis forfatter(e) (2022). The relationship between interhemispheric asymmetries in polar ionospheric convection and the magnetic field line footpoint displacement field. Frontiers in Astronomy and Space Sciences.
  • Vis forfatter(e) (2022). Testing the mirror symmetry of Birkeland and ionospheric currents with respect to magnetic latitude, dipole tilt angle, and IMF B <inf>y</inf>. Frontiers in Astronomy and Space Sciences.
  • Vis forfatter(e) (2022). Possible Ionospheric Influence on Substorm Onset Location. Geophysical Research Letters.
  • Vis forfatter(e) (2022). Local Mapping of Polar Ionospheric Electrodynamics. Journal of Geophysical Research (JGR): Space Physics. 31 sider.
  • Vis forfatter(e) (2022). Geomagnetic Response to Rapid Increases in Solar Wind Dynamic Pressure: Event Detection and Large Scale Response. Frontiers in Astronomy and Space Sciences. 1-18.
  • Vis forfatter(e) (2022). Evolution of IMF By induced asymmetries during substorms: Superposed epoch analysis at geosynchronous orbit. Frontiers in Astronomy and Space Sciences. 1-13.
  • Vis forfatter(e) (2021). Quantifying the Lobe Reconnection Rate During Dominant IMF By Periods and Different Dipole Tilt Orientations . Journal of Geophysical Research (JGR): Space Physics. 18 sider.
  • Vis forfatter(e) (2021). Exploring solar-terrestrial interactions via multiple imaging observers. Experimental astronomy (Print).
  • Vis forfatter(e) (2021). Evolution of IMF By Induced Asymmetries: The Role of Tail Reconnection. Journal of Geophysical Research (JGR): Space Physics.
  • Vis forfatter(e) (2021). Electrojet Estimates From Mesospheric Magnetic Field Measurements. Journal of Geophysical Research (JGR): Space Physics. 16 sider.
  • Vis forfatter(e) (2020). Time-scale dependence of solar wind-based regression models of ionospheric electrodynamics. Scientific Reports.
  • Vis forfatter(e) (2020). The Relationship Between Cusp Region Ion Outflows and East‐West Magnetic Field Fluctuations at 4,000‐km Altitude. Journal of Geophysical Research (JGR): Space Physics.
  • Vis forfatter(e) (2020). Seasonal and Hemispheric Asymmetries of F Region Polar Cap Plasma Density: Swarm and CHAMP Observations. Journal of Geophysical Research (JGR): Space Physics. 13 sider.
  • Vis forfatter(e) (2020). An Explicit IMF B 𝑦 Dependence on Solar Wind-Magnetosphere Coupling. Geophysical Research Letters. 8 sider.
  • Vis forfatter(e) (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 (JGR): Space Physics. 6182-6194.
  • Vis forfatter(e) (2019). Separation and quantification of ionospheric convection sources: 1. A new technique. Journal of Geophysical Research (JGR): Space Physics. 6343-6357.
  • Vis forfatter(e) (2019). Observations of asymmetric lobe convection for weak and strong tail activity. Journal of Geophysical Research (JGR): Space Physics. 9999-10017.
  • Vis forfatter(e) (2019). Magnetic Effects of Plasma Pressure Gradients in the Upper F Region. Geophysical Research Letters. 2355-2363.
  • Vis forfatter(e) (2019). IMF By Influence on Magnetospheric Convection in Earth's Magnetotail Plasma Sheet . Geophysical Research Letters. 11698-11708.
  • Vis forfatter(e) (2018). Timescales of dayside and nightside field-aligned current response to changes in solar wind-magnetosphere coupling. Journal of Geophysical Research (JGR): Space Physics. 7307-7319.
  • Vis forfatter(e) (2018). The asymmetric geospace as displayed during the geomagnetic storm on 17 August 2001. Annales Geophysicae. 1577-1596.
  • Vis forfatter(e) (2018). Solar Wind and Seasonal Influence on Ionospheric Currents From Swarm and CHAMP Measurements. Journal of Geophysical Research (JGR): Space Physics. 4402-4429.
  • Vis forfatter(e) (2018). Snakes on a spaceship—An overview of Python in heliophysics. Journal of Geophysical Research (JGR): Space Physics. 10,384-10,402.
  • Vis forfatter(e) (2018). Seasonal and solar cycle variations of thermally excited 630.0 nm emissions in the polar ionosphere. Journal of Geophysical Research (JGR): Space Physics. 7029-7039.
  • Vis forfatter(e) (2018). Observations of asymmetries in ionospheric return flow during different levels of geomagnetic activity. Journal of Geophysical Research (JGR): Space Physics. 4638-4651.
  • Vis forfatter(e) (2018). Interplanetary Magnetic Field Bx Component Influence on Horizontal and Field-Aligned Currents in the Ionosphere. Journal of Geophysical Research (JGR): Space Physics. 3360-3379.
  • Vis forfatter(e) (2018). How the IMF By Induces a Local By Component During Northward IMF Bz and Characteristic Timescales. Journal of Geophysical Research (JGR): Space Physics. 3333-3348.
  • Vis forfatter(e) (2018). Evolution of Asymmetrically Displaced Footpoints During Substorms. Journal of Geophysical Research (JGR): Space Physics. 10,030-10,063.
  • Vis forfatter(e) (2017). Overview of solar wind - magnetosphere - ionosphere - atmosphere coupling and the generation of magnetospheric currents. Space Science Reviews. 547-573.
  • Vis forfatter(e) (2017). North-south asymmetries in cold plasma density in the magnetotail lobes: Cluster observations. Journal of Geophysical Research (JGR): Space Physics. 136-149.
  • Vis forfatter(e) (2017). Magnetic field perturbations from currents in the dark polar regions during quiet geomagnetic conditions. Space Science Reviews. 281-297.
  • Vis forfatter(e) (2017). Dayside and nightside magnetic field responses at 780 km altitude to dayside reconnection. Journal of Geophysical Research (JGR): Space Physics. 1670-1689.
  • Vis forfatter(e) (2016). The impact of sunlight on high-latitude equivalent currents. Journal of Geophysical Research (JGR): Space Physics. 2715-2726.
  • Vis forfatter(e) (2016). Sunlight effects on the 3D polar current system determined from low Earth orbit measurements. Earth Planets and Space.
  • Vis forfatter(e) (2016). Mechanisms that Produce Auroral Asymmetries in Conjugate Hemispheres. Geophysical Monograph Series.
  • Vis forfatter(e) (2016). Magnetospheric response and reconfiguration times following IMF By reversals. Journal of Geophysical Research (JGR): Space Physics. 417-431.
  • Vis forfatter(e) (2016). Magnetic coordinate systems. Space Science Reviews. 1-33.
  • Vis forfatter(e) (2016). Dynamic effects of restoring footpoint symmetry on closed magnetic field lines. Journal of Geophysical Research (JGR): Space Physics. 3963-3977.
  • Vis forfatter(e) (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 (JGR): Space Physics. 9368-9384.
  • Vis forfatter(e) (2015). Birkeland current effects on high-latitude ground magnetic field perturbations. Geophysical Research Letters. 7248-7254.
  • Vis forfatter(e) (2014). What is the appropriate coordinate system for magnetometer data when analyzing ionospheric currents? Journal of Geophysical Research (JGR): Space Physics. 8637-8647.
  • Vis forfatter(e) (2014). Intensity asymmetries in the dusk sector of the poleward auroral oval due to IMF Bx. Journal of Geophysical Research (JGR): Space Physics. 9497-9507.
  • Vis forfatter(e) (2013). On the non-conjugacy of nightside aurora and their generator mechanisms. Journal of Geophysical Research (JGR): Space Physics. 3394-3406.
  • Vis forfatter(e) (2013). Coincident particle and optical observations of nightside subauroral proton precipitation. Journal of Geophysical Research (JGR): Space Physics. 1112-1122.
  • Vis forfatter(e) (2012). Correction to 'Interhemispherical asymmetry of substorm onset locations and the Interplanetary Magnetic Field.'. Geophysical Research Letters.
  • Vis forfatter(e) (2012). Changes in the magnetotail configuration before near-Earth reconnection. Journal of Geophysical Research (JGR): Space Physics. 12 sider.
  • Vis forfatter(e) (2011). Interhemispherical asymmetry of substorm onset locations and the interplanetary magnetic field. Geophysical Research Letters. 5 sider.
  • Vis forfatter(e) (2011). Evolution of auroral asymmetries in the conjugate hemispheres during two substorms. Geophysical Research Letters. 6 sider.
  • Vis forfatter(e) (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. 9 sider.
  • Vis forfatter(e) (2010). Seasonal and interplanetary magnetic field-dependent polar cap contraction during substorm expansion phase. Journal of Geophysical Research (JGR): Space Physics. A11224.
  • Vis forfatter(e) (2010). Interhemispheric observations of emerging polar cap asymmetries. Journal of Geophysical Research (JGR): Space Physics. 15 sider.
  • Vis forfatter(e) (2009). Asymmetric auroral intensities in the Earth's Northern and Southern hemispheres. Nature. 491-493.
  • Vis forfatter(e) (2008). Persistent global proton aurora caused by high solar wind dynamic pressure. Journal of Geophysical Research (JGR). 8 sider.
Faglig foredrag
  • Vis forfatter(e) (2014). Seasonal differences in ionospheric current rise and decay times.
Vitenskapelig foredrag
  • Vis forfatter(e) (2021). Hemispheric and seasonal variations in the cold plasma outflow source region: Swarm and CHAMP observations of F-region polar cap electron density.
  • Vis forfatter(e) (2020). How tail reconnection affects the asymmetric state of the magnetosphere in the LFM model.
  • Vis forfatter(e) (2020). Hemispheric and seasonal variations in the cold plasma outflow source region: polar cap ionosphere electron density at 350–500 km.
  • Vis forfatter(e) (2019). Thermally excited 630.0 nm emissions in the polar ionosphere.
  • Vis forfatter(e) (2019). The relative importance of diamagnetic effects in the high-latitude ionosphere.
  • Vis forfatter(e) (2019). Swarm as a platform for ion outflow studies.
  • Vis forfatter(e) (2019). Southern and Northern Hemisphere relationships between ion outflow and magnetic field fluctuations .
  • Vis forfatter(e) (2019). Observations of Asymmetric Lobe Convection for Weak and Strong Tail Reconnection.
  • Vis forfatter(e) (2019). How asymmetries in Geospace evolve during increased tail reconnection.
  • Vis forfatter(e) (2019). How Asymmetries in Geospace Evolve During Substorms.
  • Vis forfatter(e) (2019). FAST observations of cusp/cleft-region ion upflow and field variations.
  • Vis forfatter(e) (2019). Cluster EDI Observations of the Asymmetric Plasma Convection in the Magnetotail Lobes During Different Levels of Tail Reconnection Rate .
  • Vis forfatter(e) (2019). A new way to identify and quantify the sources of ionospheric convection.
  • Vis forfatter(e) (2018). Plasma circulation inside the polar cap and lobe reconnection.
  • Vis forfatter(e) (2017). The influence of plasma flows bringing the magnetotail back to a more symmetric configuration.
  • Vis forfatter(e) (2017). The CHAOS-X Model and Uncertainty Values for Magnetic Directional Surveying.
  • Vis forfatter(e) (2017). Seasonal and IMF-controlled variations in the large-scale true horizontal ionospheric current.
  • Vis forfatter(e) (2017). Production and visualization of a climatological model of high-latitude ionospheric and field aligned current systems.
  • Vis forfatter(e) (2017). Norwegian contributions to the ISWI program.
  • Vis forfatter(e) (2017). North-south asymmetries in polar ionospheric currents - effects of asymmetries in the main magnetic field.
  • Vis forfatter(e) (2017). North-south asymmetries in lobe density: Cluster observations.
  • Vis forfatter(e) (2017). North-South asymmetries in cold plasma density.
  • Vis forfatter(e) (2017). How the IMF By induces a By-component on closed field lines during northward IMF Bz.
  • Vis forfatter(e) (2017). High latitude currents and convection during quiet times.
  • Vis forfatter(e) (2017). Hemispherical differences in the Ionospheric current system as seen by Swarm and CHAMP.
  • Vis forfatter(e) (2017). Dayside and nightside magnetic field responses at 780 km altitude to dayside reconnection.
  • Vis forfatter(e) (2017). Characterizing external influence on the large-scale polar ionospheric current system.
  • Vis forfatter(e) (2015). Statistical maps of Birkeland currents from Swarm magnetometer measurements.
  • Vis forfatter(e) (2015). On which timescales are By induced in the closed magnetosphere?
  • Vis forfatter(e) (2015). North-south asymmetries in magnetospheric and ionospheric plasma circulation (Invited).
  • Vis forfatter(e) (2015). Magnetic field patterns near the polar cap boundary.
  • Vis forfatter(e) (2015). Generation of Birkeland Currents during IMF By; Mechanisms and theory.
  • Vis forfatter(e) (2015). Effects of electric field component representation on estimated cross polar cap potential - Implications for interhemispheric asymmetries.
  • Vis forfatter(e) (2015). Effects of electric field component representation on estimated cross polar cap potential - Implications for interhemispheric asymmetries.
  • Vis forfatter(e) (2015). Current systems associated with Non-Conjugate Aurora.
  • Vis forfatter(e) (2015). Are there auroral signatures related to asymmetric generation of field-aligned currents in the tail due to an IMF By induced twist?
  • Vis forfatter(e) (2014). Techniques for fast measurement of cylinder diameter outdoors.
  • Vis forfatter(e) (2014). Hemispheric differences in solar wind – magnetosphere interactions.
  • Vis forfatter(e) (2014). Conjugate and non-conjugate aspects of the aurora.
  • Vis forfatter(e) (2014). Comparison of solar wind driving of the aurora in the two hemispheres due to the solar wind dynamo.
  • Vis forfatter(e) (2014). Comparison of solar wind driving of the aurora in the two hemispheres due to solar wind dynamo.
  • Vis forfatter(e) (2014). Asymmetric Solar Wind dynamo efficiency and IMF Bx.
  • Vis forfatter(e) (2013). What are the mechanisms that produce auroral asymmetries in the conjugate hemispheres?
  • Vis forfatter(e) (2013). Simultaneous global imaging as a tracer of true conjugate regions.
  • Vis forfatter(e) (2013). Non-Conjugate Features in the Auroral Ovals in the two Hemispheres.
  • Vis forfatter(e) (2013). Investigation of the role of IMF Bx on magnetopause characteristic past the terminator.
  • Vis forfatter(e) (2013). Investigation of a possible IMF Bx influence on magnetopause characteristics.
  • Vis forfatter(e) (2013). Investigation of a possible IMF Bx influence on magnetopause characteristic.
  • Vis forfatter(e) (2013). Inter-hemispheric currents in the ring current region.
  • Vis forfatter(e) (2013). Intensity asymmetries between the northern and southern auroral ovals associated with the x-component of the Interplanetary Magnetic Field.
  • Vis forfatter(e) (2011). Particle and optical observations of subauroral proton precipitation.
  • Vis forfatter(e) (2011). Observations of energetic protons and auroral light during geomagnetic storms.
  • Vis forfatter(e) (2011). Auroral asymmetries in the conjugate hemispheres during substorm onset and expansion phase.
  • Vis forfatter(e) (2011). Auroral asymmetries in the conjugate hemispheres.
  • Vis forfatter(e) (2011). Asymmetries of substorm onset location and the dynamic behavior of auroral substorms during expansion phase.
  • Vis forfatter(e) (2009). Substorm auroral asymmetries in the conjugate hemispheres during onset and expansion phase.
  • Vis forfatter(e) (2009). IPY-ICESTAR Arctic Frontiers.
  • Vis forfatter(e) (2009). IMF Bx Effects on Interhemispheric Polar Cap Asymmetries Inferred From Conjugate Auroral Imaging.
  • Vis forfatter(e) (2009). Conjugate aurora observations of substorms IAGA meeting.
  • Vis forfatter(e) (2009). Asymmetric aurora detected in the two hemispheres simultaneously.
  • Vis forfatter(e) (2009). Asymmetric aurora detected in the two hemispheres simultaneously.
  • Vis forfatter(e) (2009). Asymmetric aurora detected in the two hemispheres simultaneously.
  • Vis forfatter(e) (2008). What are the ionospheric signatures of magnetotail reconnection?
  • Vis forfatter(e) (2008). Conjugate observations of substorm onset and expansion in the two hemispheres.
  • Vis forfatter(e) (2008). Conjugate imaging of substorms.
  • Vis forfatter(e) (2008). Auroral conjugacy studies.
  • Vis forfatter(e) (2007). Solar wind pressure as a cause for persistent proton precipitation.
Mastergradsoppgave
  • Vis forfatter(e) (2007). Storm Time Observations of the Global Proton Aurora.
Doktorgradsavhandling
  • Vis forfatter(e) (2010). Auroral Imaging as a Tracer of Global Magnetospheric Dynamics.
Poster
  • Vis forfatter(e) (2019). Quantifying the dipole tilt influence on reverse convection cells during northward IMF using spherical elementary functions.
  • Vis forfatter(e) (2019). A new way to identify and quantify the sources of ionospheric convection.
  • Vis forfatter(e) (2018). How the IMF BY induces a BY component on closed field lines during northward IMF Bz and characteristic timescales.
  • Vis forfatter(e) (2018). Evolution of asymmetrically displaced footpoints during substorms.
  • Vis forfatter(e) (2017). When and where is the process of restoring symmetry important?
  • Vis forfatter(e) (2017). The asymmetric geospace - the most common state of the system.
  • Vis forfatter(e) (2017). How the IMF By induces a By-component on closed field lines during northward IMF Bz.
  • Vis forfatter(e) (2017). Evolution of asymmetrically displaced footpoints during substorms.
  • Vis forfatter(e) (2017). Evolution of asymmetrically displaced footpoints during substorms.
  • Vis forfatter(e) (2016). North-south asymmetries in cold ion outflow and lobe density.
  • Vis forfatter(e) (2016). How the IMF By induces a By component on closed field lines during northward IMF Bz.
  • Vis forfatter(e) (2016). Dynamic effects of restoring footpoint symmetry on closed magnetic field-lines: Asymmetric Birkeland currents.
  • Vis forfatter(e) (2015). The Impact of IMF By on the Magnetosphere-Ionosphere System.
  • Vis forfatter(e) (2015). On the importance of magnetotail untwisting.
  • Vis forfatter(e) (2015). On the importance of magnetotail untwist.
  • Vis forfatter(e) (2015). Birkeland Current Effects on High-Latitude Ground Magnetic Field Perturbations.
  • Vis forfatter(e) (2014). What is the Appropriate Coordinate System for Magnetometer Data when Analyzing Ionospheric Currents?
  • Vis forfatter(e) (2014). Hemispheric asymmetries in the global aurora and IMF Bx.
  • Vis forfatter(e) (2014). Generation of Field Aligned Currents during IMF By: Mechanisms and theory.
  • Vis forfatter(e) (2013). Solar wind dynamic pressure effect on global auroral intensity.
  • Vis forfatter(e) (2013). Inter-hemispheric currents in the ring current region as seen by the Cluster spacecraft.
  • Vis forfatter(e) (2013). How IMF Bx affects the two polar hemispheres differently.
  • Vis forfatter(e) (2013). How IMF Bx affects the two hemispheres differently.
  • Vis forfatter(e) (2013). Auroral intensity asymmetries associated with the x-component of the interplanetary magnetic field in the two polar hemispheres.
  • Vis forfatter(e) (2012). Non-conjugate aurora and inter hemispheric currents.
  • Vis forfatter(e) (2012). Asymmetric field-aligned currents in the conjugate hemispheres.
  • Vis forfatter(e) (2009). A case study of auroral conjugacy based on global imaging.
  • Vis forfatter(e) (2008). Auroral asymmetries in the conjugate hemispheres during strong IMF Bx.
Errata
  • Vis forfatter(e) (2013). Correction to 'Evolution of auroral asymmetries in the conjugate hemispheres during two substorms.'. Geophysical Research Letters. 471-471.
Vitenskapelig oversiktsartikkel/review
  • Vis forfatter(e) (2016). North–south asymmetries in Earth’s magnetic field effects on high-latitude geospace. Space Science Reviews. 225-257.
  • Vis forfatter(e) (2012). In situ monitoring of growth interfaces: a review of noninvasive methods. JOM. 96-101.
Populærvitenskapelig kapittel/artikkel
  • Vis forfatter(e) (2016). Auroral research and the total solar eclipse. 13 sider.
Faglig kapittel
  • Vis forfatter(e) (2021). Ion Outflow and Lobe Density: Interhemispheric Asymmetries . 127. I:
    • Vis forfatter(e) (2021). Space Physics and Aeronomy, Volume 3, Ionosphere Dynamics and Applications. John Wiley & Sons.

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