120 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- North-West UniversityZA8 papers
- National Institute for Theoretical PhysicsZA5 papers
- University of Cape TownZA4 papers
- University of KwaZulu-NatalZA4 papers
- University of California, BerkeleyUS3 papers
- Carnegie Mellon UniversityUS2 papers
- Northumbria UniversityGB2 papers
- University of GlasgowGB2 papers
- University of the Western CapeZA2 papers
- Aberystwyth UniversityGB1 paper
- Austrian Academy of SciencesAT1 paper
- Bay Area Environmental Research InstituteUS1 paper
9 papers · 1 filter
Adaptations to a geomagnetic field interpolation method in Southern Africa
M. J. Heyns, S. I. Lotz, P. J. Cilliers +1
Space weather and its impact on infrastructure presents a clear risk in the modern era, as evidenced by the adverse effects of geomagnetically induced currents (GICs) in power netw…
On the Turbulent Reduction of Drifts for Solar Energetic Particles
J. P. van den Berg, N. E. Engelbrecht, N. Wijsen +1
Particle drifts perpendicular to the background magnetic field have been proposed by some authors as an explanation for the very efficient perpendicular transport of solar energeti…
The updated SANAE neutron monitor
R. D. Strauss, C. van der Merwe, C. Diedericks +5
Neutron monitors have been the premier ground-based instruments for monitoring the near-Earth cosmic ray flux for more than 70 years. It is essential to continue with such measurem…
A Primer on Focused Solar Energetic Particle Transport: Basic physics and recent modelling results
J. P. van den Berg, R. D. Strauss, F. Effenberger
The basics of focused transport as applied to solar energetic particles are reviewed, paying special attention to areas of common misconception. The micro-physics of charged partic…
Patch Size Evolution During Pulsating Aurora
N. Partamies, K. Bolmgren, E. Heino +3
We report both decreasing and increasing trends in the patch sizes during pulsating aurora events. About 150 pulsating auroral events over the Fennoscandian Lapland have been succe…
Probabilistic Analysis of Power Network Susceptibility to GICs
M. J. Heyns, S. I. Lotz, C. T. Gaunt
As reliance on power networks has increased over the last century, the risk of damage from geomagnetically induced currents (GICs) has become a concern to utilities. The current st…
Data Driven Transfer Functions and Transmission Network Parameters for GIC Modelling
M. J. Heyns, C. T. Gaunt, S. I. Lotz +1
Typical geomagnetically induced current (GIC) modelling assumes the induced quasi-DC current at a node in the transmission network is linearly related to the local geoelectric fiel…
Frequency Components of Geomagnetically Induced Currents for Power System Modelling
D. T. O. Oyedokun, M. J. Heyns, P. J. Cilliers +1
Geomagnetically induced currents (GICs) in power systems are conventionally modelled as direct currents, based on their commonly described quasi-DC nature. For more representative…
The Source Regions of Whistlers
Dávid Koronczay, János Lichtenberger, Mark A. Clilverd +7
We present a new method for identifying the source regions of lightning generated whistlers observed at a fixed location. In addition to the spatial distribution of causative light…