Does high-latitude ionospheric electrodynamics exhibit hemispheric mirror symmetry?
Spencer Mark Hatch,Heikki Vanhamäki,Karl Magnus Laundal,Jone Peter Reistad,Johnathan K. Burchill,Levan Lomidze,David J. Knudsen,Michael Madelaire,and Habtamu Tesfaw
This paper presents a new set of empirical models for describing variations in ionosphere-thermosphere electrodynamics in both hemispheres, as a function of season as well as prevailing solar wind and interplanetary magnetic field conditions. The models are based on combined measurements of magnetic field perturbations and ionospheric plasma drift made by the Swarm and CHAMP satellites. The chief advantage of these models is that they are the first empirical models of high-latitude ionospheric electrodynamics quantities in both hemispheres that are consistently derived. The model codes are open source and publicly available.
This paper presents a new set of empirical models for describing variations in...
In studies of the Earth's ionosphere, a hot topic is how to estimate ionospheric conductivity. This is hard to do for a variety of reasons that mostly amount to a lack of measurements. In this study we use satellite measurements to estimate electromagnetic work and ionospheric conductances in both hemispheres. We identify where our model estimates are inconsistent with laws of physics, which partially solves a previous problem with unrealistic predictions of ionospheric conductances.
In studies of the Earth's ionosphere, a hot topic is how to estimate ionospheric conductivity....