How do high‐latitude North Atlantic climate signals the crossover between the Deep Western Boundary Current and the Gulf Stream?
Bibliographic record
Abstract
A simple model is used to examine how the presence of a continental slope along the western boundary, and wind‐driven gyres, especially the Gulf Stream (GS) jet, affect the pathways of water‐mass flow and wave propagation in the abyssal ocean. Two types of forcing: an interior source and a boundary inflow (to mimic the Labrador Sea Water and the marginal‐sea overflow), are considered here. Both topography and wind‐driven gyres considerably alter how the water mass spreads from the source (in the steady state case) and how transient signals propagate to the unforced regions. Sloping bathymetry near the western boundary allows for meridional propagation of topographic waves. The GS jet creates a strong meridional PV gradient which could partially block the southward water‐mass transport and wave propagation. The effectiveness of the crossover to disrupt the lower layer response depends on the type of high latitude water mass forcing.
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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 | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| 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 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".