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The lunar tides in the Antarctic mesosphere and lower thermosphere


Reference:

Sandford, D. J., Mitchell, N. J., Vincent, R. A. and Murphy, D. J., 2007. The lunar tides in the Antarctic mesosphere and lower thermosphere. Journal of Atmospheric and Solar-Terrestrial Physics, 69 (17-18), pp. 2219-2237.

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Official URL:

http://dx.doi.org/10.1016/j.jastp.2007.04.010

Abstract

Horizontal winds in the mesosphere and lower thermosphere over the Antarctic have been measured by a meteor radar at Rothera (67.5 degrees S, 68.0 degrees W) and MF radar at Davis (68.6 degrees S, 78.0 degrees E). Data from Rothera recorded over a 20-month interval in 2005-2006 and data from Davis recorded over the 13-year interval 1994-2006 are examined to investigate the monthly mean behaviour of the lunar semidiurnal tide. Both data sets show a clear signal of the 12.42-h lunar semidiurnal (M-2) tide. The amplitude reaches values as large as 8 in s(-1). The vertical wavelengths of the tide vary seasonally from similar to 10 to 65 km. Comparisons of the phase of the tide measured over the two sites reveals that it does not purely consist of a migrating wavenumber 2 mode. This suggests that other, non-migrating, inodes are likely to be present. (c) 2007 Elsevier Ltd. All rights reserved.

Details

Item Type Articles
CreatorsSandford, D. J., Mitchell, N. J., Vincent, R. A. and Murphy, D. J.
DOI10.1016/j.jastp.2007.04.010
DepartmentsFaculty of Engineering & Design > Electronic & Electrical Engineering
RefereedYes
StatusPublished
ID Code5700

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