Synoptic scale study of the Arctic polar vortex's influence on the middle atmosphere, 1, Observations
Bibliographic record
Abstract
We present nightly Rayleigh lidar temperature measurements of the high‐latitude middle atmosphere taken at three Arctic sites over similar time periods in midwinter. The four reported case studies depict changes in the thermal structure of the stratosphere and lower mesosphere over a period of days to weeks that can be attributed to movement and interaction of the polar vortex, the Aleutian High, and planetary waves as evidenced from the National Center for Environmental Prediction tropospheric and stratospheric analyses. In cases where substantial (i.e., large horizontal scale) movement of the vortex is observed, it is noted that regional middle atmospheric Arctic temperatures can change by tens of degrees. In other cases, we show that even very subtle (i.e., small horizontal scale) movement of the vortex system over similar timescales can result in notable temperature changes in the regional middle atmosphere. It appears that the observed events are dependant on the location, strength, and structure of the polar vortex and Aleutian High. All of these synoptic scale measurements indicate a change in the local dynamical structure of the middle atmosphere and are discussed in regards to this issue.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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 teacher head, 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".