coherent backscatter radar imaging in brazil: large-scale waves in the bottomside f-region at the onset of equatorial spread f
Clicks: 129
ID: 161405
2008
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
Steady Performance
30.0
/100
129 views
17 readers
AI Quality Assessment
Not analyzed
Readership in this journal
SteadyRanked #213 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
The 30 MHz coherent backscatter radar located at the equatorial observatory
in São Luís, Brazil (2.59° S, 44.21° W, −2.35° dip
lat) has been upgraded to perform coherent backscatter radar imaging. The
wide field-of-view of this radar makes it well suited for radar imaging
studies of ionospheric irregularities. Radar imaging observations were made
in support to the spread F Experiment (SpreadFEx) campaign. This paper
describes the system and imaging technique and presents results from a
bottom-type layer that preceded fully-developed radar plumes on 25 October
2005. The radar imaging technique was able to resolve decakilometric
structures within the bottom-type layer. These structures indicate the
presence of large-scale waves (~35 km) in the bottomside F-region with
phases that are alternately stable and unstable to wind-driven gradient drift
instabilities. The observations suggest that these waves can also cause the
initial perturbation necessary to initiate the Generalized Rayleigh-Taylor
instability leading to spread F. The electrodynamic conditions and the
scale length of the bottom-type layer structures suggest that the waves were
generated by the collisional shear instability. These results indicate that
monitoring bottom-type layers may provide helpful diagnostics for spread F
forecasting.
| Reference Key |
rodrigues2008annalescoherent
Use this key to autocite in the manuscript while using
SciMatic Manuscript Manager or Thesis Manager
|
|---|---|
| Authors | ;F. S. Rodrigues;F. S. Rodrigues;D. L. Hysell;E. R. de Paula |
| Journal | journal of food measurement and characterization |
| Year | 2008 |
| DOI |
10.5194/angeo-26-3355-2008
|
| 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.