low-latitude equinoctial spread-f occurrence at different longitude sectors under low solar activity
Clicks: 203
ID: 175370
2013
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
Emerging Content
30.0
/100
203 views
30 readers
AI Quality Assessment
Not analyzed
Readership in this journal
EmergingRanked #61 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
We present the results of a comparative study of spread-F signatures over
five low-latitude sites: Chiangmai (CGM; 18.8° N, 98.9° E,
mag. Lat. 8.8° N), Thailand; Tanjungsari (TNJ; 6.9° S,
107.6° E, mag. Lat. 16.9° S), Indonesia; Palmas (PAL;
10.2° S, 311.8° E, mag. Lat. 0.9° S) and
São José Dos Campos (SJC; 23.2° S, 314.1° E,
mag. Lat. 14.0° S), Brazil; and Tucumán (TUC; 26.9° S,
294.6° E, mag. Lat. 16.8° S), Argentina. The
investigation was based on simultaneous ionograms recorded by an FMCW (frequency-modulated continuous-wave) at
CGM, an IPS-71 (digital ionosonde from KEL aerospace) at TNJ, a CADI (Canadian Advanced Digital Ionosonde) at PAL and SJC, and an AIS-INGV
(Advanced Ionospheric Sounder – Istituto Nazionale di Geofisica e Vulcanologia) at TUC, during
the equinoctial periods March–April (R12 = 2.0 and R12 = 2.2) and
September–October (R12 = 6.1 and R12 = 7.0) 2009, for very low
solar activity. Spread-F signatures were categorized into two types: the
range spread-F (RSF) and the frequency spread-F (FSF). The study confirms
that the dynamics and the physical processes responsible for these phenomena
are actually complicated. In fact, the features that arise from the
investigation are different, depending on both the longitude sector and on
the hemisphere. For instance, TUC, under the southern crest of the ionospheric equatorial ionization anomaly (EIA), shows a predominance of
RSF signatures, while both SJC, under the southern crest of EIA but in a
different longitude sector, and CGM, under the northern crest of EIA, show a
predominance of FSF signatures. Moreover, the spread-F occurrence over the
longitude sector that includes CGM and TNJ is significantly lower than the
spread-F occurrence over the longitude sector of PAL, SJC, and TUC.
| Reference Key |
pezzopane2013annaleslow-latitude
Use this key to autocite in the manuscript while using
SciMatic Manuscript Manager or Thesis Manager
|
|---|---|
| Authors | ;M. Pezzopane;E. Zuccheretti;P. Abadi;A. J. de Abreu;R. de Jesus;P. R. Fagundes;P. Supnithi;S. Rungraengwajiake;T. Nagatsuma;T. Tsugawa;M. A. Cabrera;M. A. Cabrera;M. A. Cabrera;R. G. Ezquer;R. G. Ezquer;R. G. Ezquer |
| Journal | journal of food measurement and characterization |
| Year | 2013 |
| DOI |
10.5194/angeo-31-153-2013
|
| 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.