{'fraction_non_alphanumeric': 0.011441647597254004, 'fraction_numerical': 0.002288329519450801, 'mean_word_length': 5.578947368421052, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Electrodynamic Coupling and Dissipation of Thermospheric Winds

A so far simplified model considers the response of the magnetized ionosphere to neutral winds and the so created effective electrodynamic coupling in neutral atmosphere dynamics. The effect resembels viscosity, but the geomagnetic field couples winds also over large distances. As a prominent example the Sq variations are presented as a system that couples the winds between hemispheres at magnetically conjugate points. The interaction between hemispheres tends to force the large scale wind systems towards alignment with magnetic coordinates and towards mirror symmetry with respect to the magnetic equator. This is, however, for the Earth's thermosphere, never completed because the time constant exceeds the 24 hours over which dynamics driven by the energy input from solar radiation creates new winds.