Meteor radar quasi 2-day wave observations over 10 years at Collm (51.3° N, 13.0° E)
Item
Title (Dublin Core)
Meteor radar quasi 2-day wave observations over 10 years at Collm (51.3° N, 13.0° E)
Description (Dublin Core)
The quasi 2-day wave (QTDW) at 82–97 km altitude over Collm (51° N, 13° E) has been observed using a VHF meteor radar. The long-term mean amplitudes calculated using data between September 2004 and August 2014 show a strong summer maximum and a much weaker winter maximum. In summer, the meridional amplitude is slightly larger than the zonal one with about 15 m s<sup>−1</sup> at 91 km height. Phase differences are slightly greater than 90° on an average. The periods of the summer QTDW vary between 43 and 52 h during strong bursts, while in winter the periods tend to be more diffuse. On average, the summer QTDW is amplified after a maximum of zonal wind shear which is connected with the summer mesospheric jet and there is a possible correlation of the summer mean amplitudes with the background wind shear. QTDW amplitudes exhibit considerable inter-annual variability; however, a relationship between the 11-year solar cycle and the QTDW is not found.
Creator (Dublin Core)
Lilienthal, F.
Jacobi, Ch.
Date (Dublin Core)
2018-09-07
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.5194/acp-15-9917-2015
https://acp.copernicus.org/articles/15/9917/2015/
Source (Dublin Core)
eISSN: 1680-7324
Language (Dublin Core)
eng
