Interannual variations of the diurnal tide in the mesosphere induced by a zonal‐mean wind oscillation in the tropics
Bibliographic record
Abstract
An interannual variation of the propagating diurnal tide in the mesosphere is simulated using a middle atmosphere general circulation model (GCM) and interpreted using a linear mechanistic tidal model. The GCM results show that the semiannual amplitude variation of the tide, which is characterized by strong tides near equinox and weak tides near solstice, exhibits a strong interannual variation in the presence of a long‐period mean wind oscillation in the tropics. Changes in the latitudinal gradients of the mean winds in the subtropical mesosphere are shown to be primarily responsible for this behavior. It is suggested that this shear mechanism may explain the possible link between the quasi‐biennial oscillation in the zonal‐mean zonal winds in the stratosphere and the amplitude of the diurnal tide in the lower thermosphere that is seen in observations.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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".