Blar i Bergen Open Research Archive på forfatter "Walker, Simon James"
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A novel application of Spherical Elementary Currents with Ground Magnetometers - Analysis of By effects on the auroral electrojets
Walker, Simon James (Master thesis, 2020-12-10)This thesis advances inversion and optimisation techniques used with spherical elementary currents (SECS) to perform a statistical analysis of the auroral electrojets based on ground magnetic field measurements. The ... -
Deciphering Spatio-Temporal Variations in the Auroral Ionosphere using Magnetometer Data
Walker, Simon James (Doctoral thesis, 2024-03-22)Den polare ionosfæren er et dynamisk plasma-miljø dominert av koblingen mellom solvinden og jordens magnetosfære. Nordlyset, plasma-bevegelsen og elektriske strømmer i ionosfæren er skalert og drevet av dagsidekoblingen ...