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Winds and Tides in the Mid-latitude Southern Hemisphere Upper Mesosphere Recorded with the Falkland Islands Superdarn Radar : Volume 29, Issue 11 (04/11/2011)

By Hibbins, R. E.

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Book Id: WPLBN0003990907
Format Type: PDF Article :
File Size: Pages 12
Reproduction Date: 2015

Title: Winds and Tides in the Mid-latitude Southern Hemisphere Upper Mesosphere Recorded with the Falkland Islands Superdarn Radar : Volume 29, Issue 11 (04/11/2011)  
Author: Hibbins, R. E.
Volume: Vol. 29, Issue 11
Language: English
Subject: Science, Annales, Geophysicae
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2011
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Ruohoniemi, J. M., Freeman, M. P., Milan, S. E., & Hibbins, R. E. (2011). Winds and Tides in the Mid-latitude Southern Hemisphere Upper Mesosphere Recorded with the Falkland Islands Superdarn Radar : Volume 29, Issue 11 (04/11/2011). Retrieved from http://members.worldlibrary.net/


Description
Description: Department of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway. Meteor wind data from the first year of operation of the Falkland Islands SuperDARN radar (52° S, 59° W) are used to characterize the atmospheric tides and background winds in the upper mesosphere above the South Atlantic. Strong (>40 m s−1) semidiurnal tides are observed in the winter time and large amplitude (>60 m s−1) bursts of quasi two-day wave activity are seen in January 2011. Data are in good agreement with those presented from the SAAMER meteor radar (54° S, 68° W). Comparison with SuperDARN meteor wind data from a geographically similar Northern Hemisphere site at Goose Bay (53° N 60° W) reveal clear interhemispheric differences especially in the semidiurnal and terdiurnal components of the tides. The winter time amplitudes of the tides are much stronger in the Southern Hemisphere than in the north. Background winds are observed to be significantly more polewards and westwards throughout the year than those predicted by the empirical horizontal wind model HWM07.

Summary
Winds and tides in the mid-latitude Southern Hemisphere upper mesosphere recorded with the Falkland Islands SuperDARN radar

Excerpt
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