New Auroral Form: Dunes Provide Insight Into the Upper Atmosphere - Mag Pole Drift?

Auroral forms are like fingerprints linking optical features to physical phenomena in the near‐Earth space.

Here, we present a new auroral form named “the dunes”. On 7 October 2018, citizen observers took multiple digital photographs of the same dunes simultaneously from different locations in Finland and Sweden. We develop a triangulation method to analyze the photographs and conclude that the dunes are a monochromatic wave field with a wavelength of about 45 km within a thin layer at 100 km altitude. Supporting data suggest that the dunes manifest atmospheric waves, possibly mesospheric bores, which are rarely detected, and have not previously been observed via diffuse aurora nor at auroral latitudes and altitudes. The dunes present a new opportunity to investigate the coupling of the lower/middle atmosphere to the thermosphere and ionosphere.

Is this new aurora form related to the drifting / shifting magnetic poles ?

More charged particles getting thru ionosphere at lower latitudes>

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