Neutral air density variations during strong planetary wave activity in the mesopause region derived from meteor radar observations

Stober, G.; Jacobi, C.; Matthias, V.; Hoffmann, P.; Gerding, M. (2012). Neutral air density variations during strong planetary wave activity in the mesopause region derived from meteor radar observations. Journal of atmospheric and solar-terrestrial physics, 74, pp. 55-63. Elsevier Science 10.1016/j.jastp.2011.10.007

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Meteor radar observations of upper mesospheric/lower thermospheric winds and temperatures are suitable to investigate planetary waves in the mesosphere. Here we present a case study of the winter season 2009/2010 for two mid-latitude stations at the edge of the polar vortex and one station within the polar vortex on the island of Andøya. The selected interval begins with the build up of a long period oscillation at the end of November 2009 and ends in March 2010 after the January 2010 stratospheric warming. Planetary wave signature is visible in the temperature as well as the wind field derived from standard meteor radar and EOS MLS observations. Further, we infer neutral air density variations caused by this long period oscillation from meteor peak altitude variations of the sporadic meteor component. The results are compared with density variation computed from MLS temperature and pressure data.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Applied Physics > Microwaves
08 Faculty of Science > Institute of Applied Physics

UniBE Contributor:

Stober, Gunter

Subjects:

500 Science > 570 Life sciences; biology
600 Technology > 620 Engineering
500 Science
500 Science > 530 Physics

ISSN:

1364-6826

Publisher:

Elsevier Science

Language:

English

Submitter:

Simone Corry

Date Deposited:

11 Sep 2023 07:51

Last Modified:

11 Sep 2023 08:00

Publisher DOI:

10.1016/j.jastp.2011.10.007

BORIS DOI:

10.48350/186167

URI:

https://boris.unibe.ch/id/eprint/186167

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