Barotropic and baroclinic tidal currents on the Mackenzie shelf break in the southeastern Beaufort Sea
Bibliographic record
Abstract
Tidal currents near the outer shelf break of the Mackenzie Shelf in the southern Beaufort Sea were examined using year‐long (1987–1988) current measurements from the upper (∼35 m) and lower (∼150 m) layers at four sites along the southeast (SS1), northeast (SS2), north central (SS3), and northwest (SS4) perimeter of the shelf. At all stations, semidiurnal currents were dominant, and upper layer currents were approximately double those observed in the lower layer. Maximum M 2 currents were observed above the sharp northeastern corner of the Mackenzie Shelf (6.0–7.5 cm·s −1 ), while in the Mackenzie Canyon they were negligible. Diurnal currents were weaker and depth uniform; maximum K 1 currents (1.5–3.0 cm·s −1 ) were found in the eastern part of the shelf. Diurnal and lower layer semidiurnal currents were in good agreement with those computed numerically by Kowalik and Proshutinsky [1994] , indicating that these currents are essentially barotropic. In contrast, upper layer semidiurnal currents were mainly baroclinic. About 74% of the total energy of semidiurnal currents was associated with baroclinic coherent (phase‐locked) tidal currents, while barotropic (12%), baroclinic incoherent (7%), and inertial (7%) components are the remaining semidiurnal currents in this area. High baroclinic generation coefficients (the ratio of locally generated baroclinic waves to barotropic waves) for stations SS2 and SS3 (about 7.0–8.0 in comparison with 0.3 for SS1 and SS4) located near the northeastern Mackenzie Shelf identify this region as a probable generation source of intensive internal tidal waves, which become then locally resonantly trapped between the shelf and the critical latitudes.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".