Surface warming in a coastal current during spring time stratification
Bibliographic record
Abstract
The winter hydrography of the Scotian Shelf predominantly consists of warm and salty continental slope water, wedged under the cool and fresher water of a coastal current. The frontal zone between these water masses is associated with subduction and submesoscale lateral mixing processes. Previous studies have shown that in springtime a transition occurs in which the mixed layer stratifies around a cold intermediate layer. The onset of the spring bloom typically occurs before significant surface restratification has taken place, thereby contradicting the critical depth hypothesis. A monthlong survey of repeat transects with several diving and surface gliders across the Scotian shelf was conducted between March and April 2021. During several days of exceptionally calm and sunny conditions vertical profiles of micro-structure temperature, and turbulent kinetic energy dissipation rates were obtained. A surface warm layer was observed to develop and persist within the upper 10m, as a result of the strong insolation and low wind forcing. The use of an autonomous upward microstructure profiler allows us to study the evolution of this layer in detail. The profile data are used to estimate vertical heat fluxes at the surface and bottom of the mixed layer, which contribute to the springtime restratification. We investigate the impact of surface restratification and frontal processes on both the heat budget of the mixed layer, and the export of particulate organic carbon to deeper layers during the spring bloom. The results of this survey help improve our understanding of heat and carbon transfer on the Scotian Shelf.
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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 | 0.000 |
| 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) | 0.002 | 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".