Øystein Håvard Færder
Position
Postdoctoral fellow, Modelling of atmospheric electricity
Affiliation
Short info
Research
When I started in this position, I used a preliminary, spatially uniform, model of the high-electric field region in thunderclouds to systematically reproduce the different types of observed gamma-ray phenomena from thunderclouds by using a set of different parameters (spatial size of the high-electric field region, magnitude of external electric fields, etc.) to determine where in the parameter space the different phenomena belong. The results were published in the article "Numerical Parameter‐Space Studies of Various Types of Thundercloud Gamma‐Ray Emissions" (Færder et al. 2026). I am now working on developing a new version of this model that takes into account spatial variation so that we can, among other things, study how the charge distribution inside the thundercloud affects these gamma-ray phenomena. A deep understanding of what really happens inside the high-electric field regions in thunderclouds will give us a more complete understanding of how lightning is created and how thunderclouds affect atmospheric chemistry.
Publications
Conference lecture
- Øystein Håvard Færder; Nikolai Grigorievich Lehtinen; David Alexandre Stephan Sarria et al. (2025). A parameter-space exploration of the Relativistic Discharge Model mapping for which conditions ALOFT’s Flickering Gamma-ray Flashes are produced. (external link)
- Øystein Håvard Færder (2022). Simulating reconnection in the Solar Corona with different resistivity models. (external link)
- Øystein Håvard Færder (2023). Modelling the resistivity for magnetic reconnection on the Sun – a comparative study of anomalous resistivity models. (external link)
Conference poster
- Øystein Håvard Færder; Nikolai Grigorievich Lehtinen; David Alexandre Stephan Sarria et al. (2025). Systematic reproduction of hard radiation from thunderclouds including ALOFT’s Flickering Gamma-ray Flashes using an ODE model resembling a Lotka-Volterra predator-prey system. (external link)
- David Alexandre Stephan Sarria; Nikolai Østgaard; Ingrid Bjørge-Engeland et al. (2025). Evidence of gamma-ray glows observed in the relativistic feedback regime during the ALOFT 2023 flight campaign. (external link)
- Øystein Håvard Færder; Daniel Nóbrega-Siverio; Mats Carlsson (2023). Magnetic Reconnection Signatures in the Corona through MUSE Forward Modelling. (external link)
Academic article
- Øystein Håvard Færder; Nikolai Grigorievich Lehtinen; D. Sarria et al. (2026). Numerical Parameter‐Space Studies of Various Types of Thundercloud Gamma‐Ray Emissions. (external link)
- Øystein Håvard Færder; Daniel Elias Nóbrega Siverio; Mats Carlsson (2023). A comparative study of resistivity models for simulations of magnetic reconnection in the solar atmosphere. (external link)
- Øystein Håvard Færder; Daniel Elias Nóbrega Siverio; Mats Carlsson (2024). A comparative study of resistivity models for simulations of magnetic reconnection in the solar atmosphere. II. Plasmoid formation. (external link)
- Øystein Håvard Færder; Daniel Elias Nóbrega Siverio; Mats Carlsson et al. (2024). Extreme-ultraviolet (EUV) observables of simulated plasmoid-mediated reconnection in the solar corona. (external link)