Bibliographic record
Abstract
The atolls of the Tuamotu archipelago (South Tropical Central Pacific) are located in the central part of the great anticyclonic gyre where air subsidence leads to an arid climate with high evaporation. The bi-modal system of trade winds created by the existence of dual subtropical high pressure centres (Easter Island and Kermadec Island) drives a global westward drift, the South Equatorial Current, with a speed of 10 cm.s(-1). The zone where the two south trade winds converge (SPCZ) has a strong seasonal variability in position and intensity and controls the eastward counter circulation. During abnormal ENSO events, the counter-circulation is dominant between the equator and 15 degrees S, and the elevated heat content favours active cyclogenesis in French Polynesia. The average thermohaline field is characteristic of a two-layered system : (i) a warm surface mixing layer (0-150 m), with a high salinity core, (> 36.3), South Tropical Water (STW); and (ii) Antarctic Intermediate Water (AIW) with a salinity minimum (34.5). They are separated by a permanent pycnocline. In the central convergent part of the gyre (12 degrees S-30 degrees S), the surface mixing layer is depleted in nutrients; they occur below 200 m with strong vertical gradients in the vicinity of the nutrient-rich AIW. The strong oligotrophy of the euphotic layer is preserved even close to atolls, due to the great depth of the pycnocline-nutricline barriers, which impedes any diapycnal exchange from AIW toward surface layers. Oceanic waters surrounding the Tuamotu atolls constitute a buffered system with very low interannual variability and extreme oligotrophy and clarity.
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.004 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.002 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.002 | 0.003 |
| Scholarly communication | 0.005 | 0.006 |
| Open science | 0.004 | 0.005 |
| Research integrity | 0.007 | 0.003 |
| Insufficient payload (model declined to judge) | 0.992 | 0.995 |
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; the direct Gemma label and the distilled Codex classifier agree on what is shown here.
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".