Articles | Volume 15
Adv. Radio Sci., 15, 199–206, 2017
https://doi.org/10.5194/ars-15-199-2017
Adv. Radio Sci., 15, 199–206, 2017
https://doi.org/10.5194/ars-15-199-2017
 
21 Sep 2017
21 Sep 2017

El Niño influence on the mesosphere/lower thermosphere circulation at midlatitudes as seen by a VHF meteor radar at Collm (51.3 ° N, 13 ° E)

Christoph Jacobi et al.

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Latest update: 06 Oct 2022
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Short summary
There is continuous interest in coupling processes between the lower and middle atmosphere. Here we analyse midlatitude winds measured by radar at 82–97 km and find that especially in February they are positively correlated with El Niño. The signal is strong for the upper altitudes accessible to the radar, but weakens below. The observations can be qualitatively reproduced by numerical experiments using a mechanistic global circulation model.