Systematic Occurrence Cycle of Typical RH‐Profiles During the MJO: Evidence for Ubiquitous Pre‐Moistening
Bibliographic record
Abstract
Abstract We describe how typical relative humidity (RH) profiles change systematically through the phases of the Madden–Julian Oscillation (MJO). We use 18 years of classified RH‐profiles from the Atmospheric Infrared Sounder, clustered without prior knowledge of large‐scale dynamics or occurrence‐region. Occurrence probability (OP) anomalies of RH‐profiles classes exhibit classical MJO patterns: Large positive OP anomalies of the RH‐profile class with most moisture in the free troposphere are co‐located with the largest positive precipitation anomalies. About 10 days prior to this deep convective core large OP anomalies of a RH‐profile class occur consistent with lower atmospheric moistening, supporting a ubiquitous role of pre‐moistening in MJO propagation. Since each RH‐profile class is associated with distinct dynamics (most of which are subgrid‐scale to climate models) our results can serve as process‐based diagnostics to investigate parameterization shortcomings of climate models preventing them to simulate the MJO accurately.
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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".