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Type: Journal article
Title: A comparison of mean winds and gravity wave activity in the northern and southern polar MLT
Author: Dowdy, A.
Vincent, R.
Igarashi, K.
Murayama, Y.
Murphy, D.
Citation: Geophysical Research Letters, 2001; 28(8):1475-1478
Publisher: Amer Geophysical Union
Issue Date: 2001
ISSN: 0094-8276
Statement of
Andrew Dowdy and Robert A. Vincent, Kiyoshi Igarashi and Yasuhiro Murayama, Damian J. Murphy
Abstract: Mean winds and waves observed in the mesosphere and lower thermosphere with MF radars located at Davis (69°S, 78°E) and Poker Flat (65°N, 147°W) are compared. Measurements covering the period from 1999 to mid 2000 show differences in the strength of the horizontal wind fields. In the southern hemisphere the zonal and meridional winds reach their maximum values near the summer solstice, but are delayed by 2–3 weeks in the northern hemisphere. Gravity wave variances also show significant differences, as do the strength of vertical velocities.
Keywords: Meteorology and atmospheric dynamics
Mesospheric dynamics
Waves and tides
Rights: © 2001 American Geophysical Union
DOI: 10.1029/2000GL012576
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Physics publications

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