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https://hdl.handle.net/2440/41063
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Type: | Journal article |
Title: | Observations of mesospheric wind velocities: 1. Gravity wave horizontal scales and phase velocities determined from spaced wind observations |
Author: | Meek, C. Reid, I. Manson, A. |
Citation: | Radio Science, 1985; 20(6):1363-1382 |
Publisher: | American Geophysical Union |
Issue Date: | 1985 |
ISSN: | 0048-6604 1944-799X |
Statement of Responsibility: | C. E. Meek, I. M. Reid, and A. H. Manson |
Abstract: | Horizontal scales and phase velocities of upper middle atmosphere (60–110 km) gravity waves determined from preliminary analysis of spaced wind observations obtained with a dual bistatic radar (Gravnet), based on and operated together with the Saskatoon MF radar are presented. In the observed period range of 10–100 min, horizontal scales increase from values of ∼44 km at 10 min to ∼211 km at 100 min, while observed phase speeds decrease from values of ∼72 m/s at 10 min to ∼34 m/s at 100 min. Typical rms perturbation velocities are ∼5 m/s. Calculation of intrinsic wave parameters indicates that in the intrinsic period range of 10–100 min, horizontal scales increase from values of ∼68 km at 10 min to ∼119 km at 100 min, with intrinsic phase speeds of ∼93 m/s at 10 min and ∼20 m/s at 100 min. The corresponding values of vertical wavelength are 30 km and 6 km, respectively. |
Description: | Article first published online: 7 DEC 2012 |
Rights: | Copyright 1985 by the American Geophysical Union. |
DOI: | 10.1029/RS020i006p01363 |
Published version: | http://www.agu.org/pubs/crossref/1985/RS020i006p01363.shtml |
Appears in Collections: | Aurora harvest 6 Physics publications |
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