East‐west and vertical spectral asymmetry associated with equatorial type I waves during strong electrojet conditions: 1. Pohnpei radar observations
Bibliographic record
Abstract
We have studied a particularly strong vertical type I event with the equatorial Pohnpei radar. During that event, which lasted several hours, we routinely obtained type I waves in radar beams pointed vertically as well as at 14.3 degrees east and west of vertical. This data set has allowed us to revisit the question of the equatorial electrojet east‐west and up‐down asymmetries. These asymmetries are known to favor downshifted waves during the daytime electrojet. In our study we have contrasted type I spectra obtained simultaneously in the east and west beams, in addition to analyzing upshifted and downshifted waves in the vertical beam data. We have found that when the echoes become particularly strong, both the east‐west and up‐down power asymmetries may not only vanish but can even reverse their signs. Furthermore, these tendencies occur simultaneously in the east‐west and up‐down asymmetries. Finally, we have noted that the power asymmetry is accompanied by an asymmetry in type I Doppler shifts, which is only clearly visible, however, when the overall echo power is weaker.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".