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Osprey & Lawrence 2001
Osprey, S.M. and Lawrence, B.N. (2001). A possible mechanism for in situ forcing of planetary waves in the summer extratropical mesosphere. Geophysical Research Letters 28: doi: 10.1029/2000GL011984. issn: 0094-8276.

An examination of zonal asymmetries in meridional momentum flux reaching the mesosphere is made using the Hines Doppler spread parameterization of gravity waves. As expected a general correspondence is seen between wave one wind in the stratosphere and wave one signals in gravity wave momentum flux leaving the stratosphere. However, a significant difference is the presence of wave one features in the gravity-wave momentum flux at 56 km and ~70 ¿N during mid-summer which contrast with minimal signals in stratospheric wave one wind. The prominence of this feature is accounted for by a significant wave one Brunt-V¿is¿l¿ feature at the tropopause amplifying a wave one signal in momentum flux which can then propagate to great heights. Such a feature could result in mesospheric planetary waves which are coupled to the tropopause forcing without intervening planetary wave signals in the stratosphere. ¿ 2001 American Geophysical Union

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Abstract

Keywords
Atmospheric Composition and Structure, Middle atmosphere—energy deposition, Meteorology and Atmospheric Dynamics, Stratosphere/troposphere interactions
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
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