Bibliographic record
Abstract
Continuous monitoring of airglow and auroral emissions over Eureka (89° magnetic latitude) through each winter has shown that the dusk and dawn boundaries of the polar cap can be routinely seen when the IMF Bz is northward. When this condition prevails the auroral oval shrinks poleward, and the polar boundaries are clearly and continuously seen in photometric dusk‐dawn meridian scans of OI 630 nm emission brightness. This fact is illustrated with two 24‐hr days of records on December 19, 1996 and January 19, 1998. These examples show, and others similarly, that polar arcs emerge from the dusk or dawn flanks of the auroral oval (depending on the sign of By) and thus occur on closed field lines. In a few cases polar arcs emerge from the midnight or noon sector of the oval and extend along the sun‐earth line to cross the Eureka meridian, bifurcating the polar cap. This new technique for monitoring the polar cap dusk‐dawn extent and all auroral activity within promises to be valuable for diagnostic studies of both polar auroral activity and magnetospheric topology during solar wind changes and major sun‐earth events.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.006 | 0.001 |
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".