Interhemispheric air temperature phase relationships in the nonlinear Dansgaard‐Oeschger oscillation
Bibliographic record
Abstract
Abstract It has previously been suggested that the Southern Ocean might act as a thermal reservoir in mediating the relationship between the northern and southern hemisphere air temperature signals during a Dansgaard‐Oeschger cycle. On the basis of a climate model‐based analysis, we demonstrate on the contrary that it is equatorial and subtropical North Atlantic thermocline waters that act so as to integrate and damp the northern hemisphere signal to fix the amplitude and phase of the southern hemisphere counterpart to the more intense North Atlantic component of the oscillation. The dynamics of the Southern Ocean component of the Atlantic meridional overturning circulation are critical in explaining the evolution of the interhemispheric temperature phase relationships. European Project for Ice Coring in Antarctica Dronning Maud Land‐inferred air temperature variations are in phase with sea surface temperatures north of the Antarctic sea ice edge, suggesting that it is via a fast atmospheric pathway that this temperature signal is transmitted into the Antarctic ice core record.
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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 | 0.000 | 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".