A note on auroras during the so-called Maunder-Minimum

Schröder, W. (2004) A note on auroras during the so-called Maunder-Minimum. Acta Geodaetica et Geophysica Hungarica, 39 (4). pp. 355-358. ISSN 1217-8977

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Abstract

Based on visual noctilucent cloud data, the effect of the autumn transition of winds in the mesosphere is investigated. Following the autumnal transition of the mesospheric winds no noctilucent clouds were observed. The higher temperature of the winter mesosphere can be physically explain the fact that no noctilucent clouds occur during winter of the Northern Hemisphere. Accordingly, noctilucent clouds only occur on the typical summer mesosphere related to the low temperature there and due to the stable condition of the then mesospheric region.

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