the summertime 12-h wind oscillation with zonal wavenumber s = 1 in the lower thermosphere over the south pole
Clicks: 78
ID: 229213
1998
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This
article has not been analysed, so there is no overall score —
reader engagement is measured and shown alongside.
Reader Engagement
Popular Article
23.1
/100
78 views
11 readers
AI Quality Assessment
Not analyzed
Readership in this journal
PopularRanked #365 of 484 articles by views in journal of food measurement and characterization
Most read
Least read
Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 484 in total.
Mint this article as an NFT
Not yet mintedCreate a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.
5
SUSD
one-off · no wallet required
Abstract
Meteor radar measurements of winds near 95 km
in four azimuth directions from the geographic South Pole are analyzed to reveal
characteristics of the 12-h oscillation with zonal wavenumber one (s=1).
The wind measurements are confined to the periods from 19 January 1995 through
26 January 1996 and from 21 November 1996 through 27 January 1997. The 12-h s=1
oscillation is found to be a predominantly summertime phenomenon, and is
replaced in winter by a spectrum of oscillations with periods between 6 and 11.5
h. Both summers are characterized by minimum amplitudes (5–10 ms–1)
during early January and maxima (15–20 ms–1) in November and late
January. For 10-day means of the 12-h oscillation, smooth evolutions of phase of
order 4–6 h occur during the course of the summer. In addition, there is
considerable day-to-day variability (±5–10 ms–1 in amplitude) with
distinct periods (i.e., ~5 days and ~8 days) which suggests modulation by
planetary-scale disturbances. A comparison of climatological data from Scott
Base, Molodezhnaya, and Mawson stations suggests that the 12-h oscillation near
78°S is s=1, but that at 68°S there is probably a mixture between s=1
and other zonal wavenumber oscillations (most probably s=2). The
mechanism responsible for the existence of the 12-h s=1 oscillation has
not yet been identified. Possible origins discussed herein include in situ
excitation, nonlinear interaction between the migrating semidiurnal tide and a
stationary s=1 feature, and thermal excitation in the troposphere.
Key words. Meteorology and atmospheric dynamics · Middle atmosphere dynamics · Thermospheric dynamics · Waves and tides
Key words. Meteorology and atmospheric dynamics · Middle atmosphere dynamics · Thermospheric dynamics · Waves and tides
| Reference Key |
portnyagin1998annalesthe
Use this key to autocite in the manuscript while using
SciMatic Manuscript Manager or Thesis Manager
|
|---|---|
| Authors | ;Y. I. Portnyagin;J. M. Forbes;N. A. Makarov;E. G. Merzlyakov;S. Palo |
| Journal | journal of food measurement and characterization |
| Year | 1998 |
| DOI |
10.1007/s00585-998-0828-9
|
| URL | |
| Keywords |
Citations
No citations found. To add a citation, contact the admin at info@scimatic.org
Comments
No comments yet. Be the first to comment on this article.